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Migrate CLI to Cobra and add experimental bash completion

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This adds the following commands:
- faas-cli
- faas-cli help
- faas-cli build
- faas-cli deploy
- faas-cli remove (alias: rm)
- faas-cli version
- faas-cli push

Note that the following is also added but hidden from help pending a
more robust bash completion solution, initially using the Cobra
generated bash completion but needs spf13/cobra#520 to merge before
it'll work on the OSX default Bash 3.x.
- faas-cli bashcompletion

This commit intercepts the command line args passed to `faas-cli` and
attempts to translate them from the deprecated go flag based syntax
(`faas-cli -action xxx`) to the new Cobra verb/noun based syntax
(`faas-cli xxx`), it also translates a frozen set of legacy flags (with
the go-style single-dash) into a GNU style double-dash.

Note that some special cases are included:
- changing the delete action to remove
- passing the function name as a noun to remove rather than as an arg to
`-name`
- it also handles the legacy format where args are passed after =
(`-name=fnname`).

If the translation results in a new set of args then a message is
displayed to the user (stderr) telling warning that they are using the
deprecated cli syntax and also prints the new syntax command that is
being executed and which they should use going forward.

Any errors thrown during translation result in the command failing with
it printing the error cause to stderr.

This renames the `fetchTemplates.go` file to use snake case. The
convention appears to be for snakecase - as observed in both the Go and
Kubernetes source. For example heres a random selection of source files.

-
https://github.com/kubernetes/kubernetes/blob/master/pkg/kubeapiserver/default_storage_factory_builder.go
-
https://github.com/kubernetes/kubernetes/blob/master/pkg/kubectl/bash_comp_utils.go
-
https://github.com/golang/go/blob/master/src/compress/bzip2/move_to_front.go

Note that the language spec does not set a hard rule for source file
names, only for package names, but making this change for consistency.

Note that this file was initially generated by Cobra, but has been
tweaked to include some fixes.

It it an experimental initial version.

This commit adds some instructions on enabling the `faas-cli` bash
auto-completion support.

Instructions for Linux users are very light as it differs per-distro and
the assumption is that Linux users should be capable of following their
Distros instructions on enabling bash completion support.

Signed-off-by: John McCabe <john@johnmccabe.net>
This commit is contained in:
John McCabe
2017-08-21 23:11:12 +01:00
committed by Alex Ellis
parent f30a06fef5
commit 706761e92a
57 changed files with 8693 additions and 211 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
View File

@@ -1,6 +1,7 @@
**/node_modules/
build/
faas-cli
!contrib/bash/faas-cli
faas-cli-darwin
faas-cli-armhf

2
Dockerfile
View File

@@ -4,7 +4,7 @@ WORKDIR /go/src/github.com/alexellis/faas-cli
COPY . .
RUN go get -d -v
RUN CGO_ENABLED=0 GOOS=linux go build --ldflags "-X main.GitCommit=${GIT_COMMIT}" -a -installsuffix cgo -o faas-cli .
RUN CGO_ENABLED=0 GOOS=linux go build --ldflags "-X commands.GitCommit=${GIT_COMMIT}" -a -installsuffix cgo -o faas-cli .
FROM alpine:latest
RUN apk --no-cache add ca-certificates

20
MANUAL_CLI.md
View File

@@ -10,20 +10,20 @@ So if you want to write in another language, just prepare a Dockerfile and build
This will generate a Docker image for a Node.js function using the code in `/samples/info`.
* The `faas-cli` can accept a `-lang` option of `python` or `node` and is `node` by default.
* The `faas-cli build` command can accept a `--lang` option of `python` or `node` and is `node` by default.
```
$ ./faas-cli -action=build \
-image=alexellis2/node_info \
-name=node_info \
-handler=./sample/node_info
$ faas-cli build \
--image=alexellis2/node_info \
--name=node_info \
--handler=./sample/node_info
Building: alexellis2/node_info with Docker. Please wait..
...
Image: alexellis2/node_info built.
```
You can customise the code by editing the handler.js file and changing the `-handler` parameter. You can also edit the packages.json file, which will be used during the build to make sure all your dependencies are available at runtime.
You can customise the code by editing the handler.js file and changing the `--handler` parameter. You can also edit the packages.json file, which will be used during the build to make sure all your dependencies are available at runtime.
For example:
@@ -44,9 +44,9 @@ The CLI will then build a Docker image containing the FaaS watchdog and a bootst
Now we can deploy the image as a named function called `node_info`.
```
$ ./faas-cli -action=deploy \
-image=alexellis2/node_info \
-name=node_info
$ faas-cli deploy \
--image=alexellis2/node_info \
--name=node_info
200 OK
@@ -57,4 +57,4 @@ URL: http://localhost:8080/function/node_info
*Deploy remotely*
You can deploy to a remote FaaS instance as along as you push the image to the Docker Hub, or another accessible Docker registry. Specify your remote gateway with the following flag: `-gateway=http://remote-site.com:8080`
You can deploy to a remote FaaS instance as along as you push the image to the Docker Hub, or another accessible Docker registry. Specify your remote gateway with the following flag: `--gateway=http://remote-site.com:8080`

43
NOTES.md Normal file
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@@ -0,0 +1,43 @@
| Command | Description |
| ------- | ----------- |
| **build verb** |
| `faas-cli` | prints available verbs and global flags (think of docker/kubectl etc) |
| `faas-cli --help` | as above |
| `faas-cli build` | help for build verb |
| `faas-cli build --help` | as above |
| `faas-cli build .` | Build using a local `Faasfile` (ie default name for the YAML) with context set to `.` (handlers are relative to this) |
| `faas-cli build -f /path/to/yaml .` | As above but explictly pointing to YAML path or URL |
| `faas-cli build . url-ing` | Context set to `.` but only building a specific function (thinking of the `samples.yml` with multiple fns). I'm a bit torn by this, probably better to avoid being clever. |
| **deploy verb** |
| `faas-cli deploy` | help for build verb |
| `faas-cli deploy --help` | as above |
| `faas-cli deploy .` | Deploys using the `Faasfile` in the PWD |
| `faas-cli deploy -f /path/to/yaml` | Deploys using the YAML at the specified path or URL |
| `faas-cli deploy -f /path/to/yaml ruby-echo` | as above but only deploys the specified function |
| `faas-cli deploy -f /path/to/yaml ruby-echo --force` | overwrites an existing function if it exists (default would be to warn that function already exists) |
Spitballing some new stuff..
| Command | Description |
| ------- | ----------- |
| **image verb** |
| `faas-cli image` | prints available subverbs below and global flags|
| *list sub-verb* |
| `faas-cli image list` | list all FaaS built images, would be based on build adding a magic label |
| *rm sub-verb* |
| `faas-cli image rm alexellis/faas-url-ping` | deletes the `alexellis/faas-url-ping` image only if it was created by FaaS, ie has a magic label |
| **function verb** |
| `faas-cli function` | prints available subverbs below and global flags|
| *list sub-verb* |
| `faas-cli function list` | list all running FaaS function containers, would be based on deploy adding a magic label |
| *rm sub-verb* |
| `faas-cli function rm shrink-image` | deletes the `func_shrink-image.xxxx` containers |
| *describe sub-verb* |
| `faas-cli function describe shrink-image` | describes the `func_shrink-image.xxxx` containers, could allow the user to add a description to the functions yaml definition that gets added as a label to either the image of the container |
| **provider verb** |
| `faas-cli provider list` | lists known FaaS providers, say `prod`/`staging`/`local` etc |
| `faas-cli provider add prod https://prod:8080 --network func_functions` | Adds a new provider called `prod`, likely cache this locally, perhaps in `~/.faas-cli/` |
| `faas-cli provider rm prod` | Remove above from the cache |
| `faas-cli provider login prod` | Prompt the user to authenticate with the provider, cache locally (Apache Brooklyns cli does something similar) |
| This could then enable stuff like.. |
| `faas-cli deploy -f /path/to/yaml prod` | override the provider in the YAML and deploy to `prod` |

49
README.md
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@@ -28,11 +28,16 @@ $ brew install faas-cli
### Run the CLI
The main actions for the tool are:
The main commands supported by the CLI are:
* `-action build` - builds Docker images from the supported language types
* `-action push` - pushes Docker images into a registry
* `-action deploy` - deploys the functions into a local or remote OpenFaaS gateway
* `faas-cli build` - builds Docker images from the supported language types
* `faas-cli push` - pushes Docker images into a registry
* `faas-cli deploy` - deploys the functions into a local or remote OpenFaaS gateway
* `faas-cli remove` - removes the functions from a local or remote OpenFaaS gateway
Help for all of the commands supported by the CLI can be found by running:
* `faas-cli help` or `faas-cli [command] --help`
You can chose between using a [programming language template](https://github.com/alexellis/faas-cli/tree/master/template) where you only need to provide a handler file, or a Docker that you can build yourself.
@@ -82,15 +87,15 @@ This url-ping function is defined in the sample/url-ping folder makes use of Pyt
* Build the files in the .yml file:
```
$ faas-cli -action build -f ./samples.yml
$ faas-cli build -f ./samples.yml
```
> `-f` specifies the file or URL to download your YAML file from. The long version of the `-f` flag is: `-yaml`.
> `-f` specifies the file or URL to download your YAML file from. The long version of the `-f` flag is: `--yaml`.
You can also download over HTTP/s:
```
$ faas-cli -action build -f https://raw.githubusercontent.com/alexellis/faas-cli/master/samples.yml
$ faas-cli build -f https://raw.githubusercontent.com/alexellis/faas-cli/master/samples.yml
```
Docker along with a Python template will be used to build an image named alexellis2/faas-urlping.
@@ -100,7 +105,7 @@ Docker along with a Python template will be used to build an image named alexell
Now you can use the following command to deploy your function(s):
```
$ faas-cli -action deploy -f ./samples.yml
$ faas-cli deploy -f ./samples.yml
```
* Possible entries for functions are documented below:
@@ -137,6 +142,34 @@ $ uname -a | curl http://localhost:8080/function/nodejs-echo--data-binary @-
> For further instructions on the manual CLI flags (without using a YAML file) read [manual_cli.md](https://github.com/alexellis/faas-cli/blob/master/MANUAL_CLI.md)
**Bash Auto-completion [experimental]**
An experimental initial Bash auto-completion script for `faas-cli` is available at `contrib/bash/faas-cli`.
Please raise issues with feedback and suggestions on improvements to the auto-completion support.
This may be enabled it as follows.
*Enabling Bash auto-completion on OSX*
Brew install the `bash_completions` package.
```
$ brew install bash-completion
```
Add the following line to your `~/.bash_profile` if not already present.
```
[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion
```
Copy the provided `faas-cli` bash completion script from this repo.
```
cp contrib/bash/faas-cli /usr/local/etc/bash_completion.d/
```
*Enabling Bash auto-completion on Linux*
Refer to your distributions instructions on installing and enabling `bash-completion`, then copy the `faas-cli` completion script from `contrib/bash/` into the appropriate completion directory.
## FaaS-CLI Developers / Contributors
See [contributing guide](https://github.com/alexellis/faas-cli/blob/master/CONTRIBUTING.md).

194
app.go
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@@ -4,199 +4,17 @@
package main
import (
"flag"
"fmt"
"log"
"os"
"github.com/alexellis/faas-cli/proxy"
"github.com/alexellis/faas-cli/stack"
"github.com/alexellis/faas-cli/builder"
"github.com/alexellis/faas-cli/commands"
)
const defaultNetwork = "func_functions"
// GitCommit injected at build-time
var GitCommit string
func main() {
// var handler string
var handler string
var image string
var action string
var functionName string
var gateway string
var fprocess string
var language string
var replace bool
var nocache bool
var yamlFile string
var yamlFileShort string
var version bool
var squash bool
flag.StringVar(&handler, "handler", "", "handler for function, i.e. handler.js")
flag.StringVar(&image, "image", "", "Docker image name to build")
flag.StringVar(&action, "action", "", "Available actions: build, deploy, push, delete")
flag.StringVar(&functionName, "name", "", "give the name of your deployed function")
flag.StringVar(&gateway, "gateway", "http://localhost:8080", "gateway URI - i.e. http://localhost:8080")
flag.StringVar(&fprocess, "fprocess", "", "fprocess to be run by the watchdog")
flag.StringVar(&language, "lang", "node", "programming language template, default is: node")
flag.BoolVar(&replace, "replace", true, "replace any existing function")
flag.BoolVar(&nocache, "no-cache", false, "do not use Docker's build cache")
flag.StringVar(&yamlFile, "yaml", "", "use a yaml file for a set of functions")
flag.StringVar(&yamlFileShort, "f", "", "use a yaml file for a set of functions (same as -yaml)")
flag.BoolVar(&version, "version", false, "show version and quit")
flag.BoolVar(&squash, "squash", false, "use Docker's squash flag for potentially smaller images (currently experimental)")
flag.Parse()
if version {
fmt.Printf("Git Commit: %s\n", GitCommit)
return
}
// support short-argument -f
if len(yamlFile) == 0 && len(yamlFileShort) > 0 {
yamlFile = yamlFileShort
}
var services stack.Services
if len(yamlFile) > 0 {
parsedServices, err := stack.ParseYAML(yamlFile)
if err != nil {
log.Fatalln(err.Error())
return
}
if parsedServices != nil {
services = *parsedServices
}
}
if len(action) == 0 {
fmt.Println("give either -action= build or deploy")
return
}
switch action {
case "build":
if pullErr := pullTemplates(); pullErr != nil {
log.Fatalln("Could not pull templates for FaaS.", pullErr)
}
if len(services.Functions) > 0 {
for k, function := range services.Functions {
if function.SkipBuild {
fmt.Printf("Skipping build of: %s.\n", function.Name)
} else {
function.Name = k
// fmt.Println(k, function)
fmt.Printf("Building: %s.\n", function.Name)
builder.BuildImage(function.Image, function.Handler, function.Name, function.Language, nocache, squash)
}
}
} else {
if len(image) == 0 {
fmt.Println("Please provide a valid -image name for your Docker image.")
return
}
if len(handler) == 0 {
fmt.Println("Please provide the full path to your function's handler.")
return
}
if len(functionName) == 0 {
fmt.Println("Please provide the deployed -name of your function.")
return
}
builder.BuildImage(image, handler, functionName, language, nocache, squash)
}
break
case "delete":
if len(services.Functions) > 0 {
if len(services.Provider.Network) == 0 {
services.Provider.Network = defaultNetwork
}
for k, function := range services.Functions {
function.Name = k
fmt.Printf("Deleting: %s.\n", function.Name)
proxy.DeleteFunction(services.Provider.GatewayURL, function.Name)
}
} else {
if len(functionName) == 0 {
fmt.Println("Please provide a -name for your function as it will be deployed on FaaS")
return
}
fmt.Printf("Deleting: %s.\n", functionName)
proxy.DeleteFunction(gateway, functionName)
}
break
case "deploy":
if len(services.Functions) > 0 {
if len(services.Provider.Network) == 0 {
services.Provider.Network = defaultNetwork
}
for k, function := range services.Functions {
function.Name = k
// fmt.Println(k, function)
fmt.Printf("Deploying: %s.\n", function.Name)
proxy.DeployFunction(function.FProcess, services.Provider.GatewayURL, function.Name, function.Image, function.Language, replace, function.Environment, services.Provider.Network)
}
} else {
if len(image) == 0 {
fmt.Println("Please provide an image name to be deployed.")
return
}
if len(functionName) == 0 {
fmt.Println("Please provide a -name for your function as it will be deployed on FaaS")
return
}
proxy.DeployFunction(fprocess, gateway, functionName, image, language, replace, map[string]string{}, defaultNetwork)
}
break
case "push":
if len(services.Functions) > 0 {
for k, function := range services.Functions {
function.Name = k
fmt.Printf("Pushing: %s to remote repository.\n", function.Name)
pushImage(function.Image)
}
} else {
fmt.Println("The '-action push' flag only works with a YAML file.")
return
}
default:
fmt.Println("-action must be 'build', 'deploy', 'push' or 'delete'.")
break
customArgs, err := translateLegacyOpts(os.Args)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
}
func pushImage(image string) {
builder.ExecCommand("./", []string{"docker", "push", image})
}
func pullTemplates() error {
var err error
exists, err := os.Stat("./template")
if err != nil || exists == nil {
log.Println("No templates found in current directory.")
err = fetchTemplates()
if err != nil {
log.Println("Unable to download templates from Github.")
return err
}
}
return err
commands.Execute(customArgs)
}

2
build_samples.sh
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@@ -1,5 +1,5 @@
#!/bin/sh
./faas-cli -action build -yaml ./samples.yml # -squash=true
./faas-cli build --yaml ./samples.yml # --squash=true
docker images |head -n 4

40
commands/bash_completion.go Normal file
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@@ -0,0 +1,40 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package commands
import (
"fmt"
"github.com/spf13/cobra"
)
func init() {
faasCmd.AddCommand(bashcompletionCmd)
}
// bashcompletionCmd generates a bash completion file
// TODO split into `completion bash`/`completion zsh`?
var bashcompletionCmd = &cobra.Command{
Use: "bashcompletion FILENAME",
Short: "Generate a bash completion file",
Long: `Generate a bash completion file for the client.
This currently only works on Bash version 4, and is hidden
pending a merge of https://github.com/spf13/cobra/pull/520.`,
Hidden: true,
Run: runBashcompletion,
}
func runBashcompletion(cmd *cobra.Command, args []string) {
if len(args) < 1 {
fmt.Println("Please provide filename for bash completion")
return
}
fileName := args[0]
err := faasCmd.GenBashCompletionFile(fileName)
if err != nil {
fmt.Println("Unable to create bash completion file")
return
}
}

120
commands/build.go Normal file
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@@ -0,0 +1,120 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package commands
import (
"fmt"
"log"
"os"
"github.com/alexellis/faas-cli/builder"
"github.com/alexellis/faas-cli/stack"
"github.com/spf13/cobra"
)
// Flags that are to be added to commands.
var (
nocache bool
squash bool
)
func init() {
// Setup flags that are used by multiple commands (variables defined in faas.go)
buildCmd.Flags().StringVar(&image, "image", "", "Docker image name to build")
buildCmd.Flags().StringVar(&handler, "handler", "", "Directory with handler for function, e.g. handler.js")
buildCmd.Flags().StringVar(&functionName, "name", "", "Name of the deployed function")
buildCmd.Flags().StringVar(&language, "lang", "node", "Programming language template")
// Setup flags that are used only by this command (variables defined above)
buildCmd.Flags().BoolVar(&nocache, "no-cache", false, "Do not use Docker's build cache")
buildCmd.Flags().BoolVar(&squash, "squash", false, `Use Docker's squash flag for smaller images
[experimental] `)
// Set bash-completion.
_ = buildCmd.Flags().SetAnnotation("handler", cobra.BashCompSubdirsInDir, []string{})
faasCmd.AddCommand(buildCmd)
}
// buildCmd allows the user to build an OpenFaaS function container
var buildCmd = &cobra.Command{
Use: `build -f YAML_FILE [--no-cache] [--squash]
faas-cli build --image IMAGE_NAME
--handler HANDLER_DIR
--name FUNCTION_NAME
[--lang <ruby|python|python-armf|node|node-armf|csharp>]
[--no-cache] [--squash]`,
Short: "Builds OpenFaaS function containers",
Long: `Builds OpenFaaS function containers either via the supplied YAML config using
the "--yaml" flag (which may contain multiple function definitions), or directly
via flags.`,
Example: ` faas-cli build -f https://domain/path/myfunctions.yml
faas-cli build -f ./samples.yml --no-cache
faas-cli build --image=my_image --lang=python --handler=/path/to/fn/
--name=my_fn --squash`,
Run: runBuild,
}
func runBuild(cmd *cobra.Command, args []string) {
var services stack.Services
if len(yamlFile) > 0 {
parsedServices, err := stack.ParseYAML(yamlFile)
if err != nil {
log.Fatalln(err.Error())
return
}
if parsedServices != nil {
services = *parsedServices
}
}
if pullErr := pullTemplates(); pullErr != nil {
log.Fatalln("Could not pull templates for FaaS.", pullErr)
}
if len(services.Functions) > 0 {
for k, function := range services.Functions {
if function.SkipBuild {
fmt.Printf("Skipping build of: %s.\n", function.Name)
} else {
function.Name = k
// fmt.Println(k, function)
fmt.Printf("Building: %s.\n", function.Name)
builder.BuildImage(function.Image, function.Handler, function.Name, function.Language, nocache, squash)
}
}
} else {
if len(image) == 0 {
fmt.Println("Please provide a valid -image name for your Docker image.")
return
}
if len(handler) == 0 {
fmt.Println("Please provide the full path to your function's handler.")
return
}
if len(functionName) == 0 {
fmt.Println("Please provide the deployed -name of your function.")
return
}
builder.BuildImage(image, handler, functionName, language, nocache, squash)
}
}
func pullTemplates() error {
var err error
exists, err := os.Stat("./template")
if err != nil || exists == nil {
log.Println("No templates found in current directory.")
err = fetchTemplates()
if err != nil {
log.Println("Unable to download templates from Github.")
return err
}
}
return err
}

131
commands/deploy.go Normal file
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@@ -0,0 +1,131 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package commands
import (
"fmt"
"log"
"os"
"strings"
"github.com/alexellis/faas-cli/proxy"
"github.com/alexellis/faas-cli/stack"
"github.com/spf13/cobra"
)
// Flags that are to be added to commands.
var (
envvarOpts []string
replace bool
)
func init() {
// Setup flags that are used by multiple commands (variables defined in faas.go)
deployCmd.Flags().StringVar(&fprocess, "fprocess", "", "Fprocess to be run by the watchdog")
deployCmd.Flags().StringVar(&gateway, "gateway", "http://localhost:8080", "Gateway URI")
deployCmd.Flags().StringVar(&handler, "handler", "", "Directory with handler for function, e.g. handler.js")
deployCmd.Flags().StringVar(&image, "image", "", "Docker image name to build")
deployCmd.Flags().StringVar(&language, "lang", "node", "Programming language template")
deployCmd.Flags().StringVar(&functionName, "name", "", "Name of the deployed function")
// Setup flags that are used only by this command (variables defined above)
deployCmd.Flags().StringArrayVarP(&envvarOpts, "env", "e", []string{}, "Set one or more environment variables (ENVVAR=VALUE)")
deployCmd.Flags().BoolVar(&replace, "replace", true, "Replace any existing function")
// Set bash-completion.
_ = deployCmd.Flags().SetAnnotation("handler", cobra.BashCompSubdirsInDir, []string{})
faasCmd.AddCommand(deployCmd)
}
// deployCmd handles deploying OpenFaaS function containers
var deployCmd = &cobra.Command{
Use: `deploy -f YAML_FILE [--replace=false]
faas-cli deploy --image IMAGE_NAME
--name FUNCTION_NAME
[--lang <ruby|python|node|csharp>]
[--gateway GATEWAY_URL]
[--handler HANDLER_DIR]
[--fprocess PROCESS]
[--env ENVVAR=VALUE ...]
[--replace=false]`,
Short: "Deploy OpenFaaS functions",
Long: `Deploys OpenFaaS function containers either via the supplied YAML config using
the "--yaml" flag (which may contain multiple function definitions), or directly
via flags.`,
Example: ` faas-cli deploy -f https://domain/path/myfunctions.yml
faas-cli deploy -f ./samples.yml
faas-cli deploy -f ./samples.yml --replace=false
faas-cli deploy --image=alexellis/faas-url-ping --name=url-ping
faas-cli deploy --image=my_image --name=my_fn --handler=/path/to/fn/
--gateway=http://remote-site.com:8080 --lang=python
--env=MYVAR=myval`,
Run: runDeploy,
}
func runDeploy(cmd *cobra.Command, args []string) {
var services stack.Services
if len(yamlFile) > 0 {
parsedServices, err := stack.ParseYAML(yamlFile)
if err != nil {
log.Fatalln(err.Error())
return
}
if parsedServices != nil {
services = *parsedServices
}
}
if len(services.Functions) > 0 {
if len(services.Provider.Network) == 0 {
services.Provider.Network = defaultNetwork
}
for k, function := range services.Functions {
function.Name = k
fmt.Printf("Deploying: %s.\n", function.Name)
proxy.DeployFunction(function.FProcess, services.Provider.GatewayURL, function.Name, function.Image, function.Language, replace, function.Environment, services.Provider.Network)
}
} else {
if len(image) == 0 {
fmt.Println("Please provide a --image to be deployed.")
return
}
if len(functionName) == 0 {
fmt.Println("Please provide a --name for your function as it will be deployed on FaaS")
return
}
envvars, err := parseEnvvars(envvarOpts)
if err != nil {
fmt.Printf("Error parsing envvars: %v\n", err)
os.Exit(1)
}
proxy.DeployFunction(fprocess, gateway, functionName, image, language, replace, envvars, defaultNetwork)
}
}
func parseEnvvars(envvars []string) (map[string]string, error) {
result := map[string]string{}
for _, envvar := range envvars {
s := strings.SplitN(strings.TrimSpace(envvar), "=", 2)
envvarName := s[0]
envvarValue := s[1]
if !(len(envvarName) > 0) {
return nil, fmt.Errorf("Empty envvar name: [%s]", envvar)
}
if !(len(envvarValue) > 0) {
return nil, fmt.Errorf("Empty envvar value: [%s]", envvar)
}
result[envvarName] = envvarValue
}
return result, nil
}

55
commands/faas.go Normal file
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@@ -0,0 +1,55 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package commands
import (
"github.com/spf13/cobra"
)
const defaultNetwork = "func_functions"
// Flags that are to be added to all commands.
var (
yamlFile string
)
// Flags that are to be added to subset of commands.
var (
fprocess string
functionName string
gateway string
handler string
image string
language string
)
func init() {
faasCmd.PersistentFlags().StringVarP(&yamlFile, "yaml", "f", "", "Path to YAML file describing function(s)")
// Set Bash completion options
validYAMLFilenames := []string{"yaml", "yml"}
_ = faasCmd.PersistentFlags().SetAnnotation("yaml", cobra.BashCompFilenameExt, validYAMLFilenames)
}
// Execute TODO
func Execute(customArgs []string) {
faasCmd.SilenceUsage = true
faasCmd.SetArgs(customArgs[1:])
faasCmd.Execute()
}
// faasCmd is the FaaS CLI root command and mimics the legacy client behaviour
// Every other command attached to FaasCmd is a child command to it.
var faasCmd = &cobra.Command{
Use: "faas-cli",
Short: "Manage your OpenFaaS functions from the command line",
Long: `
Manage your OpenFaaS functions from the command line`,
Run: runFaas,
}
// runFaas TODO
func runFaas(cmd *cobra.Command, args []string) {
cmd.Help()
}

4
fetchTemplates.go → commands/fetch_templates.go
View File

@@ -1,7 +1,7 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package main
package commands
import (
"archive/zip"

66
commands/push.go Normal file
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@@ -0,0 +1,66 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package commands
import (
"fmt"
"log"
"github.com/alexellis/faas-cli/builder"
"github.com/alexellis/faas-cli/stack"
"github.com/spf13/cobra"
)
func init() {
faasCmd.AddCommand(pushCmd)
}
// pushCmd handles pushing function container images to a remote repo
var pushCmd = &cobra.Command{
Use: "push -f YAML_FILE",
Short: "Push OpenFaaS functions to remote registry (Docker Hub)",
Long: `Pushes the OpenFaaS function container image(s) defined in the supplied YAML
config to a remote repository.
These container images must already be present in your local image cache.
NOTE - this command currently supports pushing to docker hub only, support for
additional container repos is planned.`,
Example: ` faas-cli push -f https://domain/path/myfunctions.yml
faas-cli push -f ./samples.yml`,
Run: runPush,
}
func runPush(cmd *cobra.Command, args []string) {
var services stack.Services
if len(yamlFile) > 0 {
parsedServices, err := stack.ParseYAML(yamlFile)
if err != nil {
log.Fatalln(err.Error())
return
}
if parsedServices != nil {
services = *parsedServices
}
}
if len(services.Functions) > 0 {
for k, function := range services.Functions {
function.Name = k
fmt.Printf("Pushing: %s to remote repository.\n", function.Name)
pushImage(function.Image)
}
} else {
fmt.Println("You must supply a valid YAML file.")
return
}
}
func pushImage(image string) {
builder.ExecCommand("./", []string{"docker", "push", image})
}

73
commands/remove.go Normal file
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@@ -0,0 +1,73 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package commands
import (
"fmt"
"log"
"github.com/alexellis/faas-cli/proxy"
"github.com/alexellis/faas-cli/stack"
"github.com/spf13/cobra"
)
func init() {
// Setup flags that are used by multiple commands (variables defined in faas.go)
removeCmd.Flags().StringVar(&functionName, "name", "", "Name of the deployed function")
removeCmd.Flags().StringVar(&gateway, "gateway", "http://localhost:8080", "Gateway URI")
faasCmd.AddCommand(removeCmd)
}
// removeCmd deletes/removes OpenFaaS function containers
var removeCmd = &cobra.Command{
Use: `remove FUNCTION_NAME [--gateway GATEWAY_URL]
faas-cli remove -f YAML_FILE`,
Aliases: []string{"rm"},
Short: "Remove deployed OpenFaaS functions",
Long: `Removes/deletes deployed OpenFaaS functions either via the supplied YAML config
using the "--yaml" flag (which may contain multiple function definitions), or by
explicitly specifying a function name.`,
Example: ` faas-cli remove -f https://domain/path/myfunctions.yml
faas-cli remove -f ./samples.yml
faas-cli remove url-ping
faas-cli remove img2ansi --gateway==http://remote-site.com:8080`,
Run: runDelete,
}
func runDelete(cmd *cobra.Command, args []string) {
var services stack.Services
if len(yamlFile) > 0 {
parsedServices, err := stack.ParseYAML(yamlFile)
if err != nil {
log.Fatalln(err.Error())
return
}
if parsedServices != nil {
services = *parsedServices
}
}
if len(services.Functions) > 0 {
if len(services.Provider.Network) == 0 {
services.Provider.Network = defaultNetwork
}
for k, function := range services.Functions {
function.Name = k
fmt.Printf("Deleting: %s.\n", function.Name)
proxy.DeleteFunction(services.Provider.GatewayURL, function.Name)
}
} else {
if len(args) < 1 {
fmt.Println("Please provide the name of a function to delete")
return
}
functionName = args[0]
fmt.Printf("Deleting: %s.\n", functionName)
proxy.DeleteFunction(gateway, functionName)
}
}

33
commands/version.go Normal file
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@@ -0,0 +1,33 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package commands
import (
"fmt"
"github.com/spf13/cobra"
)
// GitCommit injected at build-time
var GitCommit string
func init() {
faasCmd.AddCommand(versionCmd)
}
// versionCmd displays version information
var versionCmd = &cobra.Command{
Use: "version",
Short: "Display the clients version information",
Long: fmt.Sprintf(`The version command returns the current clients version information.
This currently consists of the GitSHA from which the client was built.
- https://github.com/alexellis/faas-cli/tree/%s`, GitCommit),
Run: runVersion,
}
func runVersion(cmd *cobra.Command, args []string) {
fmt.Printf("Git Commit: %s\n", GitCommit)
return
}

444
contrib/bash/faas-cli Normal file
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@@ -0,0 +1,444 @@
# bash completion for faas-cli -*- shell-script -*-
__faas-cli_debug()
{
if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then
echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
fi
}
# Homebrew on Macs have version 1.3 of bash-completion which doesn't include
# _init_completion. This is a very minimal version of that function.
__faas-cli_init_completion()
{
COMPREPLY=()
_get_comp_words_by_ref "$@" cur prev words cword
}
__faas-cli_index_of_word()
{
local w word=$1
shift
index=0
for w in "$@"; do
[[ $w = "$word" ]] && return
index=$((index+1))
done
index=-1
}
__faas-cli_contains_word()
{
local w word=$1; shift
for w in "$@"; do
[[ $w = "$word" ]] && return
done
return 1
}
__faas-cli_handle_reply()
{
__faas-cli_debug "${FUNCNAME[0]}"
case $cur in
-*)
if [[ $(type -t compopt) = "builtin" ]]; then
compopt -o nospace
fi
local allflags
if [ ${#must_have_one_flag[@]} -ne 0 ]; then
allflags=("${must_have_one_flag[@]}")
else
allflags=("${flags[*]} ${two_word_flags[*]}")
fi
COMPREPLY=( $(compgen -W "${allflags[*]}" -- "$cur") )
if [[ $(type -t compopt) = "builtin" ]]; then
[[ "${COMPREPLY[0]}" == *= ]] || compopt +o nospace
fi
# complete after --flag=abc
if [[ $cur == *=* ]]; then
if [[ $(type -t compopt) = "builtin" ]]; then
compopt +o nospace
fi
local index flag
flag="${cur%=*}"
__faas-cli_index_of_word "${flag}" "${flags_with_completion[@]}"
COMPREPLY=()
if [[ ${index} -ge 0 ]]; then
PREFIX=""
cur="${cur#*=}"
${flags_completion[${index}]}
if [ -n "${ZSH_VERSION}" ]; then
# zfs completion needs --flag= prefix
eval "COMPREPLY=( \"\${COMPREPLY[@]/#/${flag}=}\" )"
fi
fi
fi
return 0;
;;
esac
# check if we are handling a flag with special work handling
local index
__faas-cli_index_of_word "${prev}" "${flags_with_completion[@]}"
if [[ ${index} -ge 0 ]]; then
${flags_completion[${index}]}
return
fi
# we are parsing a flag and don't have a special handler, no completion
if [[ ${cur} != "${words[cword]}" ]]; then
return
fi
local completions
completions=("${commands[@]}")
if [[ ${#must_have_one_noun[@]} -ne 0 ]]; then
completions=("${must_have_one_noun[@]}")
fi
if [[ ${#must_have_one_flag[@]} -ne 0 ]]; then
completions+=("${must_have_one_flag[@]}")
fi
COMPREPLY=( $(compgen -W "${completions[*]}" -- "$cur") )
if [[ ${#COMPREPLY[@]} -eq 0 && ${#noun_aliases[@]} -gt 0 && ${#must_have_one_noun[@]} -ne 0 ]]; then
COMPREPLY=( $(compgen -W "${noun_aliases[*]}" -- "$cur") )
fi
if [[ ${#COMPREPLY[@]} -eq 0 ]]; then
declare -F __custom_func >/dev/null && __custom_func
fi
# available in bash-completion >= 2, not always present on macOS
if declare -F __ltrim_colon_completions >/dev/null; then
__ltrim_colon_completions "$cur"
fi
}
# The arguments should be in the form "ext1|ext2|extn"
__faas-cli_handle_filename_extension_flag()
{
local ext="$1"
_filedir "@(${ext})"
}
__faas-cli_handle_subdirs_in_dir_flag()
{
local dir="$1"
pushd "${dir}" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1
}
__faas-cli_handle_flag()
{
__faas-cli_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
# if a command required a flag, and we found it, unset must_have_one_flag()
local flagname=${words[c]}
local flagvalue
# if the word contained an =
if [[ ${words[c]} == *"="* ]]; then
flagvalue=${flagname#*=} # take in as flagvalue after the =
flagname=${flagname%=*} # strip everything after the =
flagname="${flagname}=" # but put the = back
fi
__faas-cli_debug "${FUNCNAME[0]}: looking for ${flagname}"
if __faas-cli_contains_word "${flagname}" "${must_have_one_flag[@]}"; then
must_have_one_flag=()
fi
# if you set a flag which only applies to this command, don't show subcommands
if __faas-cli_contains_word "${flagname}" "${local_nonpersistent_flags[@]}"; then
commands=()
fi
# keep flag value with flagname as flaghash, associative arrays only supported
# with Bash version 4 onwards
if ((BASH_VERSINFO[0] > 3))
then
if [ -n "${flagvalue}" ] ; then
flaghash[${flagname}]=${flagvalue}
elif [ -n "${words[ $((c+1)) ]}" ] ; then
flaghash[${flagname}]=${words[ $((c+1)) ]}
else
flaghash[${flagname}]="true" # pad "true" for bool flag
fi
fi
# skip the argument to a two word flag
if __faas-cli_contains_word "${words[c]}" "${two_word_flags[@]}"; then
c=$((c+1))
# if we are looking for a flags value, don't show commands
if [[ $c -eq $cword ]]; then
commands=()
fi
fi
c=$((c+1))
}
__faas-cli_handle_noun()
{
__faas-cli_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
if __faas-cli_contains_word "${words[c]}" "${must_have_one_noun[@]}"; then
must_have_one_noun=()
elif __faas-cli_contains_word "${words[c]}" "${noun_aliases[@]}"; then
must_have_one_noun=()
fi
nouns+=("${words[c]}")
c=$((c+1))
}
__faas-cli_handle_command()
{
__faas-cli_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
local next_command
if [[ -n ${last_command} ]]; then
next_command="_${last_command}_${words[c]//:/__}"
else
if [[ $c -eq 0 ]]; then
next_command="_$(basename "${words[c]//:/__}")"
else
next_command="_${words[c]//:/__}"
fi
fi
c=$((c+1))
__faas-cli_debug "${FUNCNAME[0]}: looking for ${next_command}"
declare -F "$next_command" >/dev/null && $next_command
}
__faas-cli_handle_word()
{
if [[ $c -ge $cword ]]; then
__faas-cli_handle_reply
return
fi
__faas-cli_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
if [[ "${words[c]}" == -* ]]; then
__faas-cli_handle_flag
elif __faas-cli_contains_word "${words[c]}" "${commands[@]}"; then
__faas-cli_handle_command
elif [[ $c -eq 0 ]] && __faas-cli_contains_word "$(basename "${words[c]}")" "${commands[@]}"; then
__faas-cli_handle_command
else
__faas-cli_handle_noun
fi
__faas-cli_handle_word
}
_faas-cli_build()
{
last_command="faas-cli_build"
commands=()
flags=()
two_word_flags=()
local_nonpersistent_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--handler=")
flags_with_completion+=("--handler")
flags_completion+=("_filedir -d")
local_nonpersistent_flags+=("--handler=")
flags+=("--image=")
local_nonpersistent_flags+=("--image=")
flags+=("--lang=")
local_nonpersistent_flags+=("--lang=")
flags+=("--name=")
local_nonpersistent_flags+=("--name=")
flags+=("--no-cache")
local_nonpersistent_flags+=("--no-cache")
flags+=("--squash")
local_nonpersistent_flags+=("--squash")
flags+=("--yaml=")
flags_with_completion+=("--yaml")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
two_word_flags+=("-f")
flags_with_completion+=("-f")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
must_have_one_flag=()
must_have_one_noun=()
noun_aliases=()
}
_faas-cli_remove()
{
last_command="faas-cli_remove"
commands=()
flags=()
two_word_flags=()
local_nonpersistent_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--gateway=")
local_nonpersistent_flags+=("--gateway=")
flags+=("--name=")
local_nonpersistent_flags+=("--name=")
flags+=("--yaml=")
flags_with_completion+=("--yaml")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
two_word_flags+=("-f")
flags_with_completion+=("-f")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
must_have_one_flag=()
must_have_one_noun=()
noun_aliases=()
}
_faas-cli_deploy()
{
last_command="faas-cli_deploy"
commands=()
flags=()
two_word_flags=()
local_nonpersistent_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--env=")
two_word_flags+=("-e")
local_nonpersistent_flags+=("--env=")
flags+=("--fprocess=")
local_nonpersistent_flags+=("--fprocess=")
flags+=("--gateway=")
local_nonpersistent_flags+=("--gateway=")
flags+=("--handler=")
flags_with_completion+=("--handler")
flags_completion+=("_filedir -d")
local_nonpersistent_flags+=("--handler=")
flags+=("--image=")
local_nonpersistent_flags+=("--image=")
flags+=("--lang=")
local_nonpersistent_flags+=("--lang=")
flags+=("--name=")
local_nonpersistent_flags+=("--name=")
flags+=("--replace")
local_nonpersistent_flags+=("--replace")
flags+=("--yaml=")
flags_with_completion+=("--yaml")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
two_word_flags+=("-f")
flags_with_completion+=("-f")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
must_have_one_flag=()
must_have_one_noun=()
noun_aliases=()
}
_faas-cli_push()
{
last_command="faas-cli_push"
commands=()
flags=()
two_word_flags=()
local_nonpersistent_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--yaml=")
flags_with_completion+=("--yaml")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
two_word_flags+=("-f")
flags_with_completion+=("-f")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
must_have_one_flag=()
must_have_one_noun=()
noun_aliases=()
}
_faas-cli_version()
{
last_command="faas-cli_version"
commands=()
flags=()
two_word_flags=()
local_nonpersistent_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--yaml=")
flags_with_completion+=("--yaml")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
two_word_flags+=("-f")
flags_with_completion+=("-f")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
must_have_one_flag=()
must_have_one_noun=()
noun_aliases=()
}
_faas-cli()
{
last_command="faas-cli"
commands=()
commands+=("build")
commands+=("remove")
commands+=("deploy")
commands+=("push")
commands+=("version")
flags=()
two_word_flags=()
local_nonpersistent_flags=()
flags_with_completion=()
flags_completion=()
flags+=("--yaml=")
flags_with_completion+=("--yaml")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
two_word_flags+=("-f")
flags_with_completion+=("-f")
flags_completion+=("__faas-cli_handle_filename_extension_flag yaml|yml")
must_have_one_flag=()
must_have_one_noun=()
noun_aliases=()
}
__start_faas-cli()
{
local cur prev words cword
declare -A flaghash 2>/dev/null || :
if declare -F _init_completion >/dev/null 2>&1; then
_init_completion -s || return
else
__faas-cli_init_completion -n "=" || return
fi
local c=0
local flags=()
local two_word_flags=()
local local_nonpersistent_flags=()
local flags_with_completion=()
local flags_completion=()
local commands=("faas-cli")
local must_have_one_flag=()
local must_have_one_noun=()
local last_command
local nouns=()
__faas-cli_handle_word
}
if [[ $(type -t compopt) = "builtin" ]]; then
complete -o default -F __start_faas-cli faas-cli
else
complete -o default -o nospace -F __start_faas-cli faas-cli
fi
# ex: ts=4 sw=4 et filetype=sh

2
deploy_samples.sh
View File

@@ -1,6 +1,6 @@
#!/bin/sh
./faas-cli -action deploy -yaml ./samples.yml
./faas-cli deploy --yaml ./samples.yml
sleep 5

97
legacy_cli.go Normal file
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@@ -0,0 +1,97 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package main
import (
"fmt"
"os"
"reflect"
"strings"
)
func translateLegacyOpts(args []string) ([]string, error) {
legacyOptMapping := map[string]string{
"-handler": "--handler",
"-image": "--image",
"-name": "--name",
"-gateway": "--gateway",
"-fprocess": "--fprocess",
"-lang": "--lang",
"-replace": "--replace",
"-no-cache": "--no-cache",
"-yaml": "--yaml",
"-squash": "--squash",
}
validActions := map[string]string{
"build": "build",
"delete": "remove",
"deploy": "deploy",
"push": "push",
}
action := ""
translatedArgs := []string{args[0]}
optsCache := args[1:]
// Replace action
for idx, opt := range optsCache {
if opt == "-version" {
translatedArgs = append(translatedArgs, "version")
optsCache = append(optsCache[:idx], optsCache[idx+1:]...)
action = "version"
}
if opt == "-action" {
if len(optsCache) == idx+1 {
return []string{""}, fmt.Errorf("No action supplied after deprecated -action flag")
}
if translated, ok := validActions[optsCache[idx+1]]; ok {
translatedArgs = append(translatedArgs, translated)
optsCache = append(optsCache[:idx], optsCache[idx+2:]...)
action = translated
} else {
return []string{""}, fmt.Errorf("Unknown action supplied to deprecated -action flag: %s", optsCache[idx+1])
}
}
if strings.HasPrefix(opt, "-action"+"=") {
s := strings.SplitN(opt, "=", 2)
if len(s[1]) == 0 {
return []string{""}, fmt.Errorf("No action supplied after deprecated -action= flag")
}
if translated, ok := validActions[s[1]]; ok {
translatedArgs = append(translatedArgs, translated)
optsCache = append(optsCache[:idx], optsCache[idx+1:]...)
action = translated
} else {
return []string{""}, fmt.Errorf("Unknown action supplied to deprecated -action= flag: %s", s[1])
}
}
}
for idx, arg := range optsCache {
if action == "remove" {
if arg == "-name" {
optsCache = append(optsCache[:idx], optsCache[idx+1:]...)
continue
}
}
if translated, ok := legacyOptMapping[arg]; ok {
optsCache[idx] = translated
}
for legacyOpt, translated := range legacyOptMapping {
if strings.HasPrefix(arg, legacyOpt) {
optsCache[idx] = strings.Replace(arg, legacyOpt, translated, 1)
}
}
}
translatedArgs = append(translatedArgs, optsCache...)
if !reflect.DeepEqual(args, translatedArgs) {
fmt.Fprintln(os.Stderr, "Found deprecated go-style flags in command, translating to new format:")
fmt.Fprintf(os.Stderr, " %s\n", strings.Join(translatedArgs, " "))
}
return translatedArgs, nil
}

180
legacy_cli_test.go Normal file
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@@ -0,0 +1,180 @@
// Copyright (c) Alex Ellis 2017. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package main
import (
"reflect"
"testing"
)
var translateLegacyOptsTests = []struct {
title string
inputArgs []string
expectedArgs []string
expectError bool
}{
{
title: "legacy deploy action with all args, no =",
inputArgs: []string{"faas-cli", "-action", "deploy", "-image", "testimage", "-name", "fnname", "-fprocess", `"/usr/bin/faas-img2ansi"`, "-gateway", "https://url", "-handler", "/dir/", "-lang", "python", "-replace"},
expectedArgs: []string{"faas-cli", "deploy", "--image", "testimage", "--name", "fnname", "--fprocess", `"/usr/bin/faas-img2ansi"`, "--gateway", "https://url", "--handler", "/dir/", "--lang", "python", "--replace"},
expectError: false,
},
{
title: "legacy deploy action with =",
inputArgs: []string{"faas-cli", "-action=deploy", "-image=testimage", "-name=fnname", `-fprocess="/usr/bin/faas-img2ansi"`},
expectedArgs: []string{"faas-cli", "deploy", "--image=testimage", "--name=fnname", `--fprocess="/usr/bin/faas-img2ansi"`},
expectError: false,
},
{
title: "legacy deploy action with -f",
inputArgs: []string{"faas-cli", "-action=deploy", "-f", "/dir/file.yml"},
expectedArgs: []string{"faas-cli", "deploy", "-f", "/dir/file.yml"},
expectError: false,
},
{
title: "legacy deploy action with -yaml",
inputArgs: []string{"faas-cli", "-action=deploy", "-yaml", "/dir/file.yml"},
expectedArgs: []string{"faas-cli", "deploy", "--yaml", "/dir/file.yml"},
expectError: false,
},
{
title: "legacy build action with all args, no =",
inputArgs: []string{"faas-cli", "-action", "build", "-image", "testimage", "-name", "fnname", "-handler", "/dir/", "-lang", "python", "-no-cache", "-squash"},
expectedArgs: []string{"faas-cli", "build", "--image", "testimage", "--name", "fnname", "--handler", "/dir/", "--lang", "python", "--no-cache", "--squash"},
expectError: false,
},
{
title: "legacy delete action (note delete->remove translation)",
inputArgs: []string{"faas-cli", "-action", "delete", "-name", "fnname"},
expectedArgs: []string{"faas-cli", "remove", "fnname"},
expectError: false,
},
{
title: "legacy delete action with yaml",
inputArgs: []string{"faas-cli", "-action", "delete", "-f", "/dir/file.yml"},
expectedArgs: []string{"faas-cli", "remove", "-f", "/dir/file.yml"},
expectError: false,
},
{
title: "legacy version flag",
inputArgs: []string{"faas-cli", "-version"},
expectedArgs: []string{"faas-cli", "version"},
expectError: false,
},
{
title: "version command",
inputArgs: []string{"faas-cli", "version"},
expectedArgs: []string{"faas-cli", "version"},
expectError: false,
},
{
title: "deploy command",
inputArgs: []string{"faas-cli", "deploy", "--image", "testimage", "--name", "fnname", "--fprocess", `"/usr/bin/faas-img2ansi"`, "--gateway", "https://url", "--handler", "/dir/", "--lang", "python", "--replace", "--env", "KEY1=VAL1", "--env", "KEY2=VAL2"},
expectedArgs: []string{"faas-cli", "deploy", "--image", "testimage", "--name", "fnname", "--fprocess", `"/usr/bin/faas-img2ansi"`, "--gateway", "https://url", "--handler", "/dir/", "--lang", "python", "--replace", "--env", "KEY1=VAL1", "--env", "KEY2=VAL2"},
expectError: false,
},
{
title: "build command",
inputArgs: []string{"faas-cli", "build", "--image", "testimage", "--name", "fnname", "--handler", "/dir/", "--lang", "python", "--no-cache", "--squash"},
expectedArgs: []string{"faas-cli", "build", "--image", "testimage", "--name", "fnname", "--handler", "/dir/", "--lang", "python", "--no-cache", "--squash"},
expectError: false,
},
{
title: "remove command",
inputArgs: []string{"faas-cli", "remove", "fnname"},
expectedArgs: []string{"faas-cli", "remove", "fnname"},
expectError: false,
},
{
title: "remove command alias rm",
inputArgs: []string{"faas-cli", "rm", "fnname"},
expectedArgs: []string{"faas-cli", "rm", "fnname"},
expectError: false,
},
{
title: "remove command alias delete",
inputArgs: []string{"faas-cli", "delete", "fnname"},
expectedArgs: []string{"faas-cli", "delete", "fnname"},
expectError: false,
},
{
title: "push command",
inputArgs: []string{"faas-cli", "delete", "fnname"},
expectedArgs: []string{"faas-cli", "delete", "fnname"},
expectError: false,
},
{
title: "bashcompletion command",
inputArgs: []string{"faas-cli", "bashcompletion", "/dir/file"},
expectedArgs: []string{"faas-cli", "bashcompletion", "/dir/file"},
expectError: false,
},
{
title: "legacy flag as value without =",
inputArgs: []string{"faas-cli", "-action", "deploy", "-name", `"-name"`},
expectedArgs: []string{"faas-cli", "deploy", "--name", `"-name"`},
expectError: false,
},
{
title: "legacy flag as value with =",
inputArgs: []string{"faas-cli", "-action", "deploy", "-name=-name"},
expectedArgs: []string{"faas-cli", "deploy", "--name=-name"},
expectError: false,
},
{
title: "unknown legacy flag",
inputArgs: []string{"faas-cli", "-action", "deploy", "-fe"},
expectedArgs: []string{"faas-cli", "deploy", "-fe"},
expectError: false,
},
{
title: "legacy -action missing value",
inputArgs: []string{"faas-cli", "-action"},
expectedArgs: []string{""},
expectError: true,
},
{
title: "legacy -action= missing value",
inputArgs: []string{"faas-cli", "-action="},
expectedArgs: []string{""},
expectError: true,
},
{
title: "legacy -action with unknown value",
inputArgs: []string{"faas-cli", "-action", "unknownaction"},
expectedArgs: []string{""},
expectError: true,
},
{
title: "legacy -action= with unknown value",
inputArgs: []string{"faas-cli", "-action=unknownaction"},
expectedArgs: []string{""},
expectError: true,
},
}
func Test_translateLegacyOpts(t *testing.T) {
for _, test := range translateLegacyOptsTests {
t.Run(test.title, func(t *testing.T) {
actual, err := translateLegacyOpts(test.inputArgs)
if test.expectError {
if err == nil {
t.Errorf("TranslateLegacyOpts test [%s] test failed, expected error not thrown", test.title)
return
}
} else {
if err != nil {
t.Errorf("TranslateLegacyOpts test [%s] test failed, unexpected error thrown", test.title)
return
}
}
if !reflect.DeepEqual(actual, test.expectedArgs) {
t.Errorf("TranslateLegacyOpts test [%s] test failed, does not match expected result;\n actual: [%v]\n expected: [%v]",
test.title,
actual,
test.expectedArgs,
)
}
})
}
}

2
vendor.conf
View File

@@ -1,2 +1,4 @@
github.com/alexellis/faas 9a70a1b9915d7420e71dda445349d68f3f3928d8
gopkg.in/yaml.v2 cd8b52f8269e0feb286dfeef29f8fe4d5b397e0b
github.com/spf13/cobra 2df9a531813370438a4d79bfc33e21f58063ed87
github.com/spf13/pflag e57e3eeb33f795204c1ca35f56c44f83227c6e6

174
vendor/github.com/spf13/cobra/LICENSE.txt generated vendored Normal file
View File

@@ -0,0 +1,174 @@
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
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942
vendor/github.com/spf13/cobra/README.md generated vendored Normal file
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@@ -0,0 +1,942 @@
![cobra logo](https://cloud.githubusercontent.com/assets/173412/10886352/ad566232-814f-11e5-9cd0-aa101788c117.png)
Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files.
Many of the most widely used Go projects are built using Cobra including:
* [Kubernetes](http://kubernetes.io/)
* [Hugo](http://gohugo.io)
* [rkt](https://github.com/coreos/rkt)
* [etcd](https://github.com/coreos/etcd)
* [Moby (former Docker)](https://github.com/moby/moby)
* [Docker (distribution)](https://github.com/docker/distribution)
* [OpenShift](https://www.openshift.com/)
* [Delve](https://github.com/derekparker/delve)
* [GopherJS](http://www.gopherjs.org/)
* [CockroachDB](http://www.cockroachlabs.com/)
* [Bleve](http://www.blevesearch.com/)
* [ProjectAtomic (enterprise)](http://www.projectatomic.io/)
* [GiantSwarm's swarm](https://github.com/giantswarm/cli)
* [Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack)
* [rclone](http://rclone.org/)
[![Build Status](https://travis-ci.org/spf13/cobra.svg "Travis CI status")](https://travis-ci.org/spf13/cobra)
[![CircleCI status](https://circleci.com/gh/spf13/cobra.png?circle-token=:circle-token "CircleCI status")](https://circleci.com/gh/spf13/cobra)
[![GoDoc](https://godoc.org/github.com/spf13/cobra?status.svg)](https://godoc.org/github.com/spf13/cobra)
![cobra](https://cloud.githubusercontent.com/assets/173412/10911369/84832a8e-8212-11e5-9f82-cc96660a4794.gif)
# Overview
Cobra is a library providing a simple interface to create powerful modern CLI
interfaces similar to git & go tools.
Cobra is also an application that will generate your application scaffolding to rapidly
develop a Cobra-based application.
Cobra provides:
* Easy subcommand-based CLIs: `app server`, `app fetch`, etc.
* Fully POSIX-compliant flags (including short & long versions)
* Nested subcommands
* Global, local and cascading flags
* Easy generation of applications & commands with `cobra init appname` & `cobra add cmdname`
* Intelligent suggestions (`app srver`... did you mean `app server`?)
* Automatic help generation for commands and flags
* Automatic detailed help for `app help [command]`
* Automatic help flag recognition of `-h`, `--help`, etc.
* Automatically generated bash autocomplete for your application
* Automatically generated man pages for your application
* Command aliases so you can change things without breaking them
* The flexibility to define your own help, usage, etc.
* Optional tight integration with [viper](http://github.com/spf13/viper) for 12-factor apps
Cobra has an exceptionally clean interface and simple design without needless
constructors or initialization methods.
Applications built with Cobra commands are designed to be as user-friendly as
possible. Flags can be placed before or after the command (as long as a
confusing space isn’t provided). Both short and long flags can be used. A
command need not even be fully typed. Help is automatically generated and
available for the application or for a specific command using either the help
command or the `--help` flag.
# Concepts
Cobra is built on a structure of commands, arguments & flags.
**Commands** represent actions, **Args** are things and **Flags** are modifiers for those actions.
The best applications will read like sentences when used. Users will know how
to use the application because they will natively understand how to use it.
The pattern to follow is
`APPNAME VERB NOUN --ADJECTIVE.`
or
`APPNAME COMMAND ARG --FLAG`
A few good real world examples may better illustrate this point.
In the following example, 'server' is a command, and 'port' is a flag:
hugo server --port=1313
In this command we are telling Git to clone the url bare.
git clone URL --bare
## Commands
Command is the central point of the application. Each interaction that
the application supports will be contained in a Command. A command can
have children commands and optionally run an action.
In the example above, 'server' is the command.
A Command has the following structure:
```go
type Command struct {
Use string // The one-line usage message.
Short string // The short description shown in the 'help' output.
Long string // The long message shown in the 'help <this-command>' output.
Run func(cmd *Command, args []string) // Run runs the command.
}
```
## Flags
A Flag is a way to modify the behavior of a command. Cobra supports
fully POSIX-compliant flags as well as the Go [flag package](https://golang.org/pkg/flag/).
A Cobra command can define flags that persist through to children commands
and flags that are only available to that command.
In the example above, 'port' is the flag.
Flag functionality is provided by the [pflag
library](https://github.com/spf13/pflag), a fork of the flag standard library
which maintains the same interface while adding POSIX compliance.
# Installing
Using Cobra is easy. First, use `go get` to install the latest version
of the library. This command will install the `cobra` generator executable
along with the library and its dependencies:
go get -u github.com/spf13/cobra/cobra
Next, include Cobra in your application:
```go
import "github.com/spf13/cobra"
```
# Getting Started
While you are welcome to provide your own organization, typically a Cobra-based
application will follow the following organizational structure:
```
▾ appName/
▾ cmd/
add.go
your.go
commands.go
here.go
main.go
```
In a Cobra app, typically the main.go file is very bare. It serves one purpose: initializing Cobra.
```go
package main
import (
"fmt"
"os"
"{pathToYourApp}/cmd"
)
func main() {
if err := cmd.RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
```
## Using the Cobra Generator
Cobra provides its own program that will create your application and add any
commands you want. It's the easiest way to incorporate Cobra into your application.
In order to use the cobra command, compile it using the following command:
go get github.com/spf13/cobra/cobra
This will create the cobra executable under your `$GOPATH/bin` directory.
### cobra init
The `cobra init [yourApp]` command will create your initial application code
for you. It is a very powerful application that will populate your program with
the right structure so you can immediately enjoy all the benefits of Cobra. It
will also automatically apply the license you specify to your application.
Cobra init is pretty smart. You can provide it a full path, or simply a path
similar to what is expected in the import.
```
cobra init github.com/spf13/newAppName
```
### cobra add
Once an application is initialized Cobra can create additional commands for you.
Let's say you created an app and you wanted the following commands for it:
* app serve
* app config
* app config create
In your project directory (where your main.go file is) you would run the following:
```
cobra add serve
cobra add config
cobra add create -p 'configCmd'
```
*Note: Use camelCase (not snake_case/snake-case) for command names.
Otherwise, you will encounter errors.
For example, `cobra add add-user` is incorrect, but `cobra add addUser` is valid.*
Once you have run these three commands you would have an app structure similar to
the following:
```
▾ app/
▾ cmd/
serve.go
config.go
create.go
main.go
```
At this point you can run `go run main.go` and it would run your app. `go run
main.go serve`, `go run main.go config`, `go run main.go config create` along
with `go run main.go help serve`, etc. would all work.
Obviously you haven't added your own code to these yet. The commands are ready
for you to give them their tasks. Have fun!
### Configuring the cobra generator
The Cobra generator will be easier to use if you provide a simple configuration
file which will help you eliminate providing a bunch of repeated information in
flags over and over.
An example ~/.cobra.yaml file:
```yaml
author: Steve Francia <spf@spf13.com>
license: MIT
```
You can specify no license by setting `license` to `none` or you can specify
a custom license:
```yaml
license:
header: This file is part of {{ .appName }}.
text: |
{{ .copyright }}
This is my license. There are many like it, but this one is mine.
My license is my best friend. It is my life. I must master it as I must
master my life.
```
You can also use built-in licenses. For example, **GPLv2**, **GPLv3**, **LGPL**,
**AGPL**, **MIT**, **2-Clause BSD** or **3-Clause BSD**.
## Manually implementing Cobra
To manually implement Cobra you need to create a bare main.go file and a RootCmd file.
You will optionally provide additional commands as you see fit.
### Create the root command
The root command represents your binary itself.
#### Manually create rootCmd
Cobra doesn't require any special constructors. Simply create your commands.
Ideally you place this in app/cmd/root.go:
```go
var RootCmd = &cobra.Command{
Use: "hugo",
Short: "Hugo is a very fast static site generator",
Long: `A Fast and Flexible Static Site Generator built with
love by spf13 and friends in Go.
Complete documentation is available at http://hugo.spf13.com`,
Run: func(cmd *cobra.Command, args []string) {
// Do Stuff Here
},
}
```
You will additionally define flags and handle configuration in your init() function.
For example cmd/root.go:
```go
import (
"fmt"
"os"
homedir "github.com/mitchellh/go-homedir"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
func init() {
cobra.OnInitialize(initConfig)
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
RootCmd.PersistentFlags().StringVarP(&projectBase, "projectbase", "b", "", "base project directory eg. github.com/spf13/")
RootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "Author name for copyright attribution")
RootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "Name of license for the project (can provide `licensetext` in config)")
RootCmd.PersistentFlags().Bool("viper", true, "Use Viper for configuration")
viper.BindPFlag("author", RootCmd.PersistentFlags().Lookup("author"))
viper.BindPFlag("projectbase", RootCmd.PersistentFlags().Lookup("projectbase"))
viper.BindPFlag("useViper", RootCmd.PersistentFlags().Lookup("viper"))
viper.SetDefault("author", "NAME HERE <EMAIL ADDRESS>")
viper.SetDefault("license", "apache")
}
func Execute() {
RootCmd.Execute()
}
func initConfig() {
// Don't forget to read config either from cfgFile or from home directory!
if cfgFile != "" {
// Use config file from the flag.
viper.SetConfigFile(cfgFile)
} else {
// Find home directory.
home, err := homedir.Dir()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
// Search config in home directory with name ".cobra" (without extension).
viper.AddConfigPath(home)
viper.SetConfigName(".cobra")
}
if err := viper.ReadInConfig(); err != nil {
fmt.Println("Can't read config:", err)
os.Exit(1)
}
}
```
### Create your main.go
With the root command you need to have your main function execute it.
Execute should be run on the root for clarity, though it can be called on any command.
In a Cobra app, typically the main.go file is very bare. It serves, one purpose, to initialize Cobra.
```go
package main
import (
"fmt"
"os"
"{pathToYourApp}/cmd"
)
func main() {
if err := cmd.RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
```
### Create additional commands
Additional commands can be defined and typically are each given their own file
inside of the cmd/ directory.
If you wanted to create a version command you would create cmd/version.go and
populate it with the following:
```go
package cmd
import (
"github.com/spf13/cobra"
"fmt"
)
func init() {
RootCmd.AddCommand(versionCmd)
}
var versionCmd = &cobra.Command{
Use: "version",
Short: "Print the version number of Hugo",
Long: `All software has versions. This is Hugo's`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Hugo Static Site Generator v0.9 -- HEAD")
},
}
```
### Attach command to its parent
If you notice in the above example we attach the command to its parent. In
this case the parent is the rootCmd. In this example we are attaching it to the
root, but commands can be attached at any level.
```go
RootCmd.AddCommand(versionCmd)
```
## Working with Flags
Flags provide modifiers to control how the action command operates.
### Assign flags to a command
Since the flags are defined and used in different locations, we need to
define a variable outside with the correct scope to assign the flag to
work with.
```go
var Verbose bool
var Source string
```
There are two different approaches to assign a flag.
### Persistent Flags
A flag can be 'persistent' meaning that this flag will be available to the
command it's assigned to as well as every command under that command. For
global flags, assign a flag as a persistent flag on the root.
```go
RootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output")
```
### Local Flags
A flag can also be assigned locally which will only apply to that specific command.
```go
RootCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from")
```
### Bind Flags with Config
You can also bind your flags with [viper](https://github.com/spf13/viper):
```go
var author string
func init() {
RootCmd.PersistentFlags().StringVar(&author, "author", "YOUR NAME", "Author name for copyright attribution")
viper.BindPFlag("author", RootCmd.PersistentFlags().Lookup("author"))
}
```
In this example the persistent flag `author` is bound with `viper`.
**Note**, that the variable `author` will not be set to the value from config,
when the `--author` flag is not provided by user.
More in [viper documentation](https://github.com/spf13/viper#working-with-flags).
## Positional and Custom Arguments
Validation of positional arguments can be specified using the `Args` field
of `Command`.
The following validators are built in:
- `NoArgs` - the command will report an error if there are any positional args.
- `ArbitraryArgs` - the command will accept any args.
- `OnlyValidArgs` - the command will report an error if there are any positional args that are not in the `ValidArgs` field of `Command`.
- `MinimumNArgs(int)` - the command will report an error if there are not at least N positional args.
- `MaximumNArgs(int)` - the command will report an error if there are more than N positional args.
- `ExactArgs(int)` - the command will report an error if there are not exactly N positional args.
- `RangeArgs(min, max)` - the command will report an error if the number of args is not between the minimum and maximum number of expected args.
An example of setting the custom validator:
```go
var cmd = &cobra.Command{
Short: "hello",
Args: func(cmd *cobra.Command, args []string) error {
if len(args) < 1 {
return errors.New("requires at least one arg")
}
if myapp.IsValidColor(args[0]) {
return nil
}
return fmt.Errorf("invalid color specified: %s", args[0])
},
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Hello, World!")
},
}
```
## Example
In the example below, we have defined three commands. Two are at the top level
and one (cmdTimes) is a child of one of the top commands. In this case the root
is not executable meaning that a subcommand is required. This is accomplished
by not providing a 'Run' for the 'rootCmd'.
We have only defined one flag for a single command.
More documentation about flags is available at https://github.com/spf13/pflag
```go
package main
import (
"fmt"
"strings"
"github.com/spf13/cobra"
)
func main() {
var echoTimes int
var cmdPrint = &cobra.Command{
Use: "print [string to print]",
Short: "Print anything to the screen",
Long: `print is for printing anything back to the screen.
For many years people have printed back to the screen.`,
Args: cobra.MinimumNArgs(1),
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Print: " + strings.Join(args, " "))
},
}
var cmdEcho = &cobra.Command{
Use: "echo [string to echo]",
Short: "Echo anything to the screen",
Long: `echo is for echoing anything back.
Echo works a lot like print, except it has a child command.`,
Args: cobra.MinimumNArgs(1),
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Print: " + strings.Join(args, " "))
},
}
var cmdTimes = &cobra.Command{
Use: "times [# times] [string to echo]",
Short: "Echo anything to the screen more times",
Long: `echo things multiple times back to the user by providing
a count and a string.`,
Args: cobra.MinimumNArgs(1),
Run: func(cmd *cobra.Command, args []string) {
for i := 0; i < echoTimes; i++ {
fmt.Println("Echo: " + strings.Join(args, " "))
}
},
}
cmdTimes.Flags().IntVarP(&echoTimes, "times", "t", 1, "times to echo the input")
var rootCmd = &cobra.Command{Use: "app"}
rootCmd.AddCommand(cmdPrint, cmdEcho)
cmdEcho.AddCommand(cmdTimes)
rootCmd.Execute()
}
```
For a more complete example of a larger application, please checkout [Hugo](http://gohugo.io/).
## The Help Command
Cobra automatically adds a help command to your application when you have subcommands.
This will be called when a user runs 'app help'. Additionally, help will also
support all other commands as input. Say, for instance, you have a command called
'create' without any additional configuration; Cobra will work when 'app help
create' is called. Every command will automatically have the '--help' flag added.
### Example
The following output is automatically generated by Cobra. Nothing beyond the
command and flag definitions are needed.
> hugo help
hugo is the main command, used to build your Hugo site.
Hugo is a Fast and Flexible Static Site Generator
built with love by spf13 and friends in Go.
Complete documentation is available at http://gohugo.io/.
Usage:
hugo [flags]
hugo [command]
Available Commands:
server Hugo runs its own webserver to render the files
version Print the version number of Hugo
config Print the site configuration
check Check content in the source directory
benchmark Benchmark hugo by building a site a number of times.
convert Convert your content to different formats
new Create new content for your site
list Listing out various types of content
undraft Undraft changes the content's draft status from 'True' to 'False'
genautocomplete Generate shell autocompletion script for Hugo
gendoc Generate Markdown documentation for the Hugo CLI.
genman Generate man page for Hugo
import Import your site from others.
Flags:
-b, --baseURL="": hostname (and path) to the root, e.g. http://spf13.com/
-D, --buildDrafts[=false]: include content marked as draft
-F, --buildFuture[=false]: include content with publishdate in the future
--cacheDir="": filesystem path to cache directory. Defaults: $TMPDIR/hugo_cache/
--canonifyURLs[=false]: if true, all relative URLs will be canonicalized using baseURL
--config="": config file (default is path/config.yaml|json|toml)
-d, --destination="": filesystem path to write files to
--disableRSS[=false]: Do not build RSS files
--disableSitemap[=false]: Do not build Sitemap file
--editor="": edit new content with this editor, if provided
--ignoreCache[=false]: Ignores the cache directory for reading but still writes to it
--log[=false]: Enable Logging
--logFile="": Log File path (if set, logging enabled automatically)
--noTimes[=false]: Don't sync modification time of files
--pluralizeListTitles[=true]: Pluralize titles in lists using inflect
--preserveTaxonomyNames[=false]: Preserve taxonomy names as written ("Gérard Depardieu" vs "gerard-depardieu")
-s, --source="": filesystem path to read files relative from
--stepAnalysis[=false]: display memory and timing of different steps of the program
-t, --theme="": theme to use (located in /themes/THEMENAME/)
--uglyURLs[=false]: if true, use /filename.html instead of /filename/
-v, --verbose[=false]: verbose output
--verboseLog[=false]: verbose logging
-w, --watch[=false]: watch filesystem for changes and recreate as needed
Use "hugo [command] --help" for more information about a command.
Help is just a command like any other. There is no special logic or behavior
around it. In fact, you can provide your own if you want.
### Defining your own help
You can provide your own Help command or your own template for the default command to use.
The default help command is
```go
func (c *Command) initHelp() {
if c.helpCommand == nil {
c.helpCommand = &Command{
Use: "help [command]",
Short: "Help about any command",
Long: `Help provides help for any command in the application.
Simply type ` + c.Name() + ` help [path to command] for full details.`,
Run: c.HelpFunc(),
}
}
c.AddCommand(c.helpCommand)
}
```
You can provide your own command, function or template through the following methods:
```go
command.SetHelpCommand(cmd *Command)
command.SetHelpFunc(f func(*Command, []string))
command.SetHelpTemplate(s string)
```
The latter two will also apply to any children commands.
## Usage
When the user provides an invalid flag or invalid command, Cobra responds by
showing the user the 'usage'.
### Example
You may recognize this from the help above. That's because the default help
embeds the usage as part of its output.
Usage:
hugo [flags]
hugo [command]
Available Commands:
server Hugo runs its own webserver to render the files
version Print the version number of Hugo
config Print the site configuration
check Check content in the source directory
benchmark Benchmark hugo by building a site a number of times.
convert Convert your content to different formats
new Create new content for your site
list Listing out various types of content
undraft Undraft changes the content's draft status from 'True' to 'False'
genautocomplete Generate shell autocompletion script for Hugo
gendoc Generate Markdown documentation for the Hugo CLI.
genman Generate man page for Hugo
import Import your site from others.
Flags:
-b, --baseURL="": hostname (and path) to the root, e.g. http://spf13.com/
-D, --buildDrafts[=false]: include content marked as draft
-F, --buildFuture[=false]: include content with publishdate in the future
--cacheDir="": filesystem path to cache directory. Defaults: $TMPDIR/hugo_cache/
--canonifyURLs[=false]: if true, all relative URLs will be canonicalized using baseURL
--config="": config file (default is path/config.yaml|json|toml)
-d, --destination="": filesystem path to write files to
--disableRSS[=false]: Do not build RSS files
--disableSitemap[=false]: Do not build Sitemap file
--editor="": edit new content with this editor, if provided
--ignoreCache[=false]: Ignores the cache directory for reading but still writes to it
--log[=false]: Enable Logging
--logFile="": Log File path (if set, logging enabled automatically)
--noTimes[=false]: Don't sync modification time of files
--pluralizeListTitles[=true]: Pluralize titles in lists using inflect
--preserveTaxonomyNames[=false]: Preserve taxonomy names as written ("Gérard Depardieu" vs "gerard-depardieu")
-s, --source="": filesystem path to read files relative from
--stepAnalysis[=false]: display memory and timing of different steps of the program
-t, --theme="": theme to use (located in /themes/THEMENAME/)
--uglyURLs[=false]: if true, use /filename.html instead of /filename/
-v, --verbose[=false]: verbose output
--verboseLog[=false]: verbose logging
-w, --watch[=false]: watch filesystem for changes and recreate as needed
### Defining your own usage
You can provide your own usage function or template for Cobra to use.
The default usage function is:
```go
return func(c *Command) error {
err := tmpl(c.Out(), c.UsageTemplate(), c)
return err
}
```
Like help, the function and template are overridable through public methods:
```go
command.SetUsageFunc(f func(*Command) error)
command.SetUsageTemplate(s string)
```
## PreRun or PostRun Hooks
It is possible to run functions before or after the main `Run` function of your command. The `PersistentPreRun` and `PreRun` functions will be executed before `Run`. `PersistentPostRun` and `PostRun` will be executed after `Run`. The `Persistent*Run` functions will be inherited by children if they do not declare their own. These functions are run in the following order:
- `PersistentPreRun`
- `PreRun`
- `Run`
- `PostRun`
- `PersistentPostRun`
An example of two commands which use all of these features is below. When the subcommand is executed, it will run the root command's `PersistentPreRun` but not the root command's `PersistentPostRun`:
```go
package main
import (
"fmt"
"github.com/spf13/cobra"
)
func main() {
var rootCmd = &cobra.Command{
Use: "root [sub]",
Short: "My root command",
PersistentPreRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PersistentPreRun with args: %v\n", args)
},
PreRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PreRun with args: %v\n", args)
},
Run: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd Run with args: %v\n", args)
},
PostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PostRun with args: %v\n", args)
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside rootCmd PersistentPostRun with args: %v\n", args)
},
}
var subCmd = &cobra.Command{
Use: "sub [no options!]",
Short: "My subcommand",
PreRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd PreRun with args: %v\n", args)
},
Run: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd Run with args: %v\n", args)
},
PostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd PostRun with args: %v\n", args)
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
fmt.Printf("Inside subCmd PersistentPostRun with args: %v\n", args)
},
}
rootCmd.AddCommand(subCmd)
rootCmd.SetArgs([]string{""})
rootCmd.Execute()
fmt.Println()
rootCmd.SetArgs([]string{"sub", "arg1", "arg2"})
rootCmd.Execute()
}
```
## Alternative Error Handling
Cobra also has functions where the return signature is an error. This allows for errors to bubble up to the top,
providing a way to handle the errors in one location. The current list of functions that return an error is:
* PersistentPreRunE
* PreRunE
* RunE
* PostRunE
* PersistentPostRunE
If you would like to silence the default `error` and `usage` output in favor of your own, you can set `SilenceUsage`
and `SilenceErrors` to `true` on the command. A child command respects these flags if they are set on the parent
command.
**Example Usage using RunE:**
```go
package main
import (
"errors"
"log"
"github.com/spf13/cobra"
)
func main() {
var rootCmd = &cobra.Command{
Use: "hugo",
Short: "Hugo is a very fast static site generator",
Long: `A Fast and Flexible Static Site Generator built with
love by spf13 and friends in Go.
Complete documentation is available at http://hugo.spf13.com`,
RunE: func(cmd *cobra.Command, args []string) error {
// Do Stuff Here
return errors.New("some random error")
},
}
if err := rootCmd.Execute(); err != nil {
log.Fatal(err)
}
}
```
## Suggestions when "unknown command" happens
Cobra will print automatic suggestions when "unknown command" errors happen. This allows Cobra to behave similarly to the `git` command when a typo happens. For example:
```
$ hugo srever
Error: unknown command "srever" for "hugo"
Did you mean this?
server
Run 'hugo --help' for usage.
```
Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion.
If you need to disable suggestions or tweak the string distance in your command, use:
```go
command.DisableSuggestions = true
```
or
```go
command.SuggestionsMinimumDistance = 1
```
You can also explicitly set names for which a given command will be suggested using the `SuggestFor` attribute. This allows suggestions for strings that are not close in terms of string distance, but makes sense in your set of commands and for some which you don't want aliases. Example:
```
$ kubectl remove
Error: unknown command "remove" for "kubectl"
Did you mean this?
delete
Run 'kubectl help' for usage.
```
## Generating Markdown-formatted documentation for your command
Cobra can generate a Markdown-formatted document based on the subcommands, flags, etc. A simple example of how to do this for your command can be found in [Markdown Docs](doc/md_docs.md).
## Generating man pages for your command
Cobra can generate a man page based on the subcommands, flags, etc. A simple example of how to do this for your command can be found in [Man Docs](doc/man_docs.md).
## Generating bash completions for your command
Cobra can generate a bash-completion file. If you add more information to your command, these completions can be amazingly powerful and flexible. Read more about it in [Bash Completions](bash_completions.md).
## Extensions
Libraries for extending Cobra:
* [cmdns](https://github.com/gosuri/cmdns): Enables name spacing a command's immediate children. It provides an alternative way to structure subcommands, similar to `heroku apps:create` and `ovrclk clusters:launch`.
## Contributing
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request
## Contributors
Names in no particular order:
* [spf13](https://github.com/spf13),
[eparis](https://github.com/eparis),
[bep](https://github.com/bep), and many more!
## License
Cobra is released under the Apache 2.0 license. See [LICENSE.txt](https://github.com/spf13/cobra/blob/master/LICENSE.txt)

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package cobra
import (
"fmt"
)
type PositionalArgs func(cmd *Command, args []string) error
// Legacy arg validation has the following behaviour:
// - root commands with no subcommands can take arbitrary arguments
// - root commands with subcommands will do subcommand validity checking
// - subcommands will always accept arbitrary arguments
func legacyArgs(cmd *Command, args []string) error {
// no subcommand, always take args
if !cmd.HasSubCommands() {
return nil
}
// root command with subcommands, do subcommand checking
if !cmd.HasParent() && len(args) > 0 {
return fmt.Errorf("unknown command %q for %q%s", args[0], cmd.CommandPath(), cmd.findSuggestions(args[0]))
}
return nil
}
// NoArgs returns an error if any args are included
func NoArgs(cmd *Command, args []string) error {
if len(args) > 0 {
return fmt.Errorf("unknown command %q for %q", args[0], cmd.CommandPath())
}
return nil
}
// OnlyValidArgs returns an error if any args are not in the list of ValidArgs
func OnlyValidArgs(cmd *Command, args []string) error {
if len(cmd.ValidArgs) > 0 {
for _, v := range args {
if !stringInSlice(v, cmd.ValidArgs) {
return fmt.Errorf("invalid argument %q for %q%s", v, cmd.CommandPath(), cmd.findSuggestions(args[0]))
}
}
}
return nil
}
func stringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
// ArbitraryArgs never returns an error
func ArbitraryArgs(cmd *Command, args []string) error {
return nil
}
// MinimumNArgs returns an error if there is not at least N args
func MinimumNArgs(n int) PositionalArgs {
return func(cmd *Command, args []string) error {
if len(args) < n {
return fmt.Errorf("requires at least %d arg(s), only received %d", n, len(args))
}
return nil
}
}
// MaximumNArgs returns an error if there are more than N args
func MaximumNArgs(n int) PositionalArgs {
return func(cmd *Command, args []string) error {
if len(args) > n {
return fmt.Errorf("accepts at most %d arg(s), received %d", n, len(args))
}
return nil
}
}
// ExactArgs returns an error if there are not exactly n args
func ExactArgs(n int) PositionalArgs {
return func(cmd *Command, args []string) error {
if len(args) != n {
return fmt.Errorf("accepts %d arg(s), received %d", n, len(args))
}
return nil
}
}
// RangeArgs returns an error if the number of args is not within the expected range
func RangeArgs(min int, max int) PositionalArgs {
return func(cmd *Command, args []string) error {
if len(args) < min || len(args) > max {
return fmt.Errorf("accepts between %d and %d arg(s), received %d", min, max, len(args))
}
return nil
}
}

537
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@@ -0,0 +1,537 @@
package cobra
import (
"bytes"
"fmt"
"io"
"os"
"sort"
"strings"
"github.com/spf13/pflag"
)
// Annotations for Bash completion.
const (
BashCompFilenameExt = "cobra_annotation_bash_completion_filename_extensions"
BashCompCustom = "cobra_annotation_bash_completion_custom"
BashCompOneRequiredFlag = "cobra_annotation_bash_completion_one_required_flag"
BashCompSubdirsInDir = "cobra_annotation_bash_completion_subdirs_in_dir"
)
func writePreamble(buf *bytes.Buffer, name string) {
buf.WriteString(fmt.Sprintf("# bash completion for %-36s -*- shell-script -*-\n", name))
buf.WriteString(`
__debug()
{
if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then
echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
fi
}
# Homebrew on Macs have version 1.3 of bash-completion which doesn't include
# _init_completion. This is a very minimal version of that function.
__my_init_completion()
{
COMPREPLY=()
_get_comp_words_by_ref "$@" cur prev words cword
}
__index_of_word()
{
local w word=$1
shift
index=0
for w in "$@"; do
[[ $w = "$word" ]] && return
index=$((index+1))
done
index=-1
}
__contains_word()
{
local w word=$1; shift
for w in "$@"; do
[[ $w = "$word" ]] && return
done
return 1
}
__handle_reply()
{
__debug "${FUNCNAME[0]}"
case $cur in
-*)
if [[ $(type -t compopt) = "builtin" ]]; then
compopt -o nospace
fi
local allflags
if [ ${#must_have_one_flag[@]} -ne 0 ]; then
allflags=("${must_have_one_flag[@]}")
else
allflags=("${flags[*]} ${two_word_flags[*]}")
fi
COMPREPLY=( $(compgen -W "${allflags[*]}" -- "$cur") )
if [[ $(type -t compopt) = "builtin" ]]; then
[[ "${COMPREPLY[0]}" == *= ]] || compopt +o nospace
fi
# complete after --flag=abc
if [[ $cur == *=* ]]; then
if [[ $(type -t compopt) = "builtin" ]]; then
compopt +o nospace
fi
local index flag
flag="${cur%%=*}"
__index_of_word "${flag}" "${flags_with_completion[@]}"
COMPREPLY=()
if [[ ${index} -ge 0 ]]; then
PREFIX=""
cur="${cur#*=}"
${flags_completion[${index}]}
if [ -n "${ZSH_VERSION}" ]; then
# zfs completion needs --flag= prefix
eval "COMPREPLY=( \"\${COMPREPLY[@]/#/${flag}=}\" )"
fi
fi
fi
return 0;
;;
esac
# check if we are handling a flag with special work handling
local index
__index_of_word "${prev}" "${flags_with_completion[@]}"
if [[ ${index} -ge 0 ]]; then
${flags_completion[${index}]}
return
fi
# we are parsing a flag and don't have a special handler, no completion
if [[ ${cur} != "${words[cword]}" ]]; then
return
fi
local completions
completions=("${commands[@]}")
if [[ ${#must_have_one_noun[@]} -ne 0 ]]; then
completions=("${must_have_one_noun[@]}")
fi
if [[ ${#must_have_one_flag[@]} -ne 0 ]]; then
completions+=("${must_have_one_flag[@]}")
fi
COMPREPLY=( $(compgen -W "${completions[*]}" -- "$cur") )
if [[ ${#COMPREPLY[@]} -eq 0 && ${#noun_aliases[@]} -gt 0 && ${#must_have_one_noun[@]} -ne 0 ]]; then
COMPREPLY=( $(compgen -W "${noun_aliases[*]}" -- "$cur") )
fi
if [[ ${#COMPREPLY[@]} -eq 0 ]]; then
declare -F __custom_func >/dev/null && __custom_func
fi
# available in bash-completion >= 2, not always present on macOS
if declare -F __ltrim_colon_completions >/dev/null; then
__ltrim_colon_completions "$cur"
fi
}
# The arguments should be in the form "ext1|ext2|extn"
__handle_filename_extension_flag()
{
local ext="$1"
_filedir "@(${ext})"
}
__handle_subdirs_in_dir_flag()
{
local dir="$1"
pushd "${dir}" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1
}
__handle_flag()
{
__debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
# if a command required a flag, and we found it, unset must_have_one_flag()
local flagname=${words[c]}
local flagvalue
# if the word contained an =
if [[ ${words[c]} == *"="* ]]; then
flagvalue=${flagname#*=} # take in as flagvalue after the =
flagname=${flagname%%=*} # strip everything after the =
flagname="${flagname}=" # but put the = back
fi
__debug "${FUNCNAME[0]}: looking for ${flagname}"
if __contains_word "${flagname}" "${must_have_one_flag[@]}"; then
must_have_one_flag=()
fi
# if you set a flag which only applies to this command, don't show subcommands
if __contains_word "${flagname}" "${local_nonpersistent_flags[@]}"; then
commands=()
fi
# keep flag value with flagname as flaghash
if [ -n "${flagvalue}" ] ; then
flaghash[${flagname}]=${flagvalue}
elif [ -n "${words[ $((c+1)) ]}" ] ; then
flaghash[${flagname}]=${words[ $((c+1)) ]}
else
flaghash[${flagname}]="true" # pad "true" for bool flag
fi
# skip the argument to a two word flag
if __contains_word "${words[c]}" "${two_word_flags[@]}"; then
c=$((c+1))
# if we are looking for a flags value, don't show commands
if [[ $c -eq $cword ]]; then
commands=()
fi
fi
c=$((c+1))
}
__handle_noun()
{
__debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
if __contains_word "${words[c]}" "${must_have_one_noun[@]}"; then
must_have_one_noun=()
elif __contains_word "${words[c]}" "${noun_aliases[@]}"; then
must_have_one_noun=()
fi
nouns+=("${words[c]}")
c=$((c+1))
}
__handle_command()
{
__debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
local next_command
if [[ -n ${last_command} ]]; then
next_command="_${last_command}_${words[c]//:/__}"
else
if [[ $c -eq 0 ]]; then
next_command="_$(basename "${words[c]//:/__}")"
else
next_command="_${words[c]//:/__}"
fi
fi
c=$((c+1))
__debug "${FUNCNAME[0]}: looking for ${next_command}"
declare -F "$next_command" >/dev/null && $next_command
}
__handle_word()
{
if [[ $c -ge $cword ]]; then
__handle_reply
return
fi
__debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
if [[ "${words[c]}" == -* ]]; then
__handle_flag
elif __contains_word "${words[c]}" "${commands[@]}"; then
__handle_command
elif [[ $c -eq 0 ]] && __contains_word "$(basename "${words[c]}")" "${commands[@]}"; then
__handle_command
else
__handle_noun
fi
__handle_word
}
`)
}
func writePostscript(buf *bytes.Buffer, name string) {
name = strings.Replace(name, ":", "__", -1)
buf.WriteString(fmt.Sprintf("__start_%s()\n", name))
buf.WriteString(fmt.Sprintf(`{
local cur prev words cword
declare -A flaghash 2>/dev/null || :
if declare -F _init_completion >/dev/null 2>&1; then
_init_completion -s || return
else
__my_init_completion -n "=" || return
fi
local c=0
local flags=()
local two_word_flags=()
local local_nonpersistent_flags=()
local flags_with_completion=()
local flags_completion=()
local commands=("%s")
local must_have_one_flag=()
local must_have_one_noun=()
local last_command
local nouns=()
__handle_word
}
`, name))
buf.WriteString(fmt.Sprintf(`if [[ $(type -t compopt) = "builtin" ]]; then
complete -o default -F __start_%s %s
else
complete -o default -o nospace -F __start_%s %s
fi
`, name, name, name, name))
buf.WriteString("# ex: ts=4 sw=4 et filetype=sh\n")
}
func writeCommands(buf *bytes.Buffer, cmd *Command) {
buf.WriteString(" commands=()\n")
for _, c := range cmd.Commands() {
if !c.IsAvailableCommand() || c == cmd.helpCommand {
continue
}
buf.WriteString(fmt.Sprintf(" commands+=(%q)\n", c.Name()))
}
buf.WriteString("\n")
}
func writeFlagHandler(buf *bytes.Buffer, name string, annotations map[string][]string) {
for key, value := range annotations {
switch key {
case BashCompFilenameExt:
buf.WriteString(fmt.Sprintf(" flags_with_completion+=(%q)\n", name))
var ext string
if len(value) > 0 {
ext = "__handle_filename_extension_flag " + strings.Join(value, "|")
} else {
ext = "_filedir"
}
buf.WriteString(fmt.Sprintf(" flags_completion+=(%q)\n", ext))
case BashCompCustom:
buf.WriteString(fmt.Sprintf(" flags_with_completion+=(%q)\n", name))
if len(value) > 0 {
handlers := strings.Join(value, "; ")
buf.WriteString(fmt.Sprintf(" flags_completion+=(%q)\n", handlers))
} else {
buf.WriteString(" flags_completion+=(:)\n")
}
case BashCompSubdirsInDir:
buf.WriteString(fmt.Sprintf(" flags_with_completion+=(%q)\n", name))
var ext string
if len(value) == 1 {
ext = "__handle_subdirs_in_dir_flag " + value[0]
} else {
ext = "_filedir -d"
}
buf.WriteString(fmt.Sprintf(" flags_completion+=(%q)\n", ext))
}
}
}
func writeShortFlag(buf *bytes.Buffer, flag *pflag.Flag) {
name := flag.Shorthand
format := " "
if len(flag.NoOptDefVal) == 0 {
format += "two_word_"
}
format += "flags+=(\"-%s\")\n"
buf.WriteString(fmt.Sprintf(format, name))
writeFlagHandler(buf, "-"+name, flag.Annotations)
}
func writeFlag(buf *bytes.Buffer, flag *pflag.Flag) {
name := flag.Name
format := " flags+=(\"--%s"
if len(flag.NoOptDefVal) == 0 {
format += "="
}
format += "\")\n"
buf.WriteString(fmt.Sprintf(format, name))
writeFlagHandler(buf, "--"+name, flag.Annotations)
}
func writeLocalNonPersistentFlag(buf *bytes.Buffer, flag *pflag.Flag) {
name := flag.Name
format := " local_nonpersistent_flags+=(\"--%s"
if len(flag.NoOptDefVal) == 0 {
format += "="
}
format += "\")\n"
buf.WriteString(fmt.Sprintf(format, name))
}
func writeFlags(buf *bytes.Buffer, cmd *Command) {
buf.WriteString(` flags=()
two_word_flags=()
local_nonpersistent_flags=()
flags_with_completion=()
flags_completion=()
`)
localNonPersistentFlags := cmd.LocalNonPersistentFlags()
cmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
if nonCompletableFlag(flag) {
return
}
writeFlag(buf, flag)
if len(flag.Shorthand) > 0 {
writeShortFlag(buf, flag)
}
if localNonPersistentFlags.Lookup(flag.Name) != nil {
writeLocalNonPersistentFlag(buf, flag)
}
})
cmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) {
if nonCompletableFlag(flag) {
return
}
writeFlag(buf, flag)
if len(flag.Shorthand) > 0 {
writeShortFlag(buf, flag)
}
})
buf.WriteString("\n")
}
func writeRequiredFlag(buf *bytes.Buffer, cmd *Command) {
buf.WriteString(" must_have_one_flag=()\n")
flags := cmd.NonInheritedFlags()
flags.VisitAll(func(flag *pflag.Flag) {
if nonCompletableFlag(flag) {
return
}
for key := range flag.Annotations {
switch key {
case BashCompOneRequiredFlag:
format := " must_have_one_flag+=(\"--%s"
if flag.Value.Type() != "bool" {
format += "="
}
format += "\")\n"
buf.WriteString(fmt.Sprintf(format, flag.Name))
if len(flag.Shorthand) > 0 {
buf.WriteString(fmt.Sprintf(" must_have_one_flag+=(\"-%s\")\n", flag.Shorthand))
}
}
}
})
}
func writeRequiredNouns(buf *bytes.Buffer, cmd *Command) {
buf.WriteString(" must_have_one_noun=()\n")
sort.Sort(sort.StringSlice(cmd.ValidArgs))
for _, value := range cmd.ValidArgs {
buf.WriteString(fmt.Sprintf(" must_have_one_noun+=(%q)\n", value))
}
}
func writeArgAliases(buf *bytes.Buffer, cmd *Command) {
buf.WriteString(" noun_aliases=()\n")
sort.Sort(sort.StringSlice(cmd.ArgAliases))
for _, value := range cmd.ArgAliases {
buf.WriteString(fmt.Sprintf(" noun_aliases+=(%q)\n", value))
}
}
func gen(buf *bytes.Buffer, cmd *Command) {
for _, c := range cmd.Commands() {
if !c.IsAvailableCommand() || c == cmd.helpCommand {
continue
}
gen(buf, c)
}
commandName := cmd.CommandPath()
commandName = strings.Replace(commandName, " ", "_", -1)
commandName = strings.Replace(commandName, ":", "__", -1)
buf.WriteString(fmt.Sprintf("_%s()\n{\n", commandName))
buf.WriteString(fmt.Sprintf(" last_command=%q\n", commandName))
writeCommands(buf, cmd)
writeFlags(buf, cmd)
writeRequiredFlag(buf, cmd)
writeRequiredNouns(buf, cmd)
writeArgAliases(buf, cmd)
buf.WriteString("}\n\n")
}
// GenBashCompletion generates bash completion file and writes to the passed writer.
func (cmd *Command) GenBashCompletion(w io.Writer) error {
buf := new(bytes.Buffer)
writePreamble(buf, cmd.Name())
if len(cmd.BashCompletionFunction) > 0 {
buf.WriteString(cmd.BashCompletionFunction + "\n")
}
gen(buf, cmd)
writePostscript(buf, cmd.Name())
_, err := buf.WriteTo(w)
return err
}
func nonCompletableFlag(flag *pflag.Flag) bool {
return flag.Hidden || len(flag.Deprecated) > 0
}
// GenBashCompletionFile generates bash completion file.
func (cmd *Command) GenBashCompletionFile(filename string) error {
outFile, err := os.Create(filename)
if err != nil {
return err
}
defer outFile.Close()
return cmd.GenBashCompletion(outFile)
}
// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag, if it exists.
func (cmd *Command) MarkFlagRequired(name string) error {
return MarkFlagRequired(cmd.Flags(), name)
}
// MarkPersistentFlagRequired adds the BashCompOneRequiredFlag annotation to the named persistent flag, if it exists.
func (cmd *Command) MarkPersistentFlagRequired(name string) error {
return MarkFlagRequired(cmd.PersistentFlags(), name)
}
// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag in the flag set, if it exists.
func MarkFlagRequired(flags *pflag.FlagSet, name string) error {
return flags.SetAnnotation(name, BashCompOneRequiredFlag, []string{"true"})
}
// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag, if it exists.
// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
func (cmd *Command) MarkFlagFilename(name string, extensions ...string) error {
return MarkFlagFilename(cmd.Flags(), name, extensions...)
}
// MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists.
// Generated bash autocompletion will call the bash function f for the flag.
func (cmd *Command) MarkFlagCustom(name string, f string) error {
return MarkFlagCustom(cmd.Flags(), name, f)
}
// MarkPersistentFlagFilename adds the BashCompFilenameExt annotation to the named persistent flag, if it exists.
// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
func (cmd *Command) MarkPersistentFlagFilename(name string, extensions ...string) error {
return MarkFlagFilename(cmd.PersistentFlags(), name, extensions...)
}
// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag in the flag set, if it exists.
// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
func MarkFlagFilename(flags *pflag.FlagSet, name string, extensions ...string) error {
return flags.SetAnnotation(name, BashCompFilenameExt, extensions)
}
// MarkFlagCustom adds the BashCompCustom annotation to the named flag in the flag set, if it exists.
// Generated bash autocompletion will call the bash function f for the flag.
func MarkFlagCustom(flags *pflag.FlagSet, name string, f string) error {
return flags.SetAnnotation(name, BashCompCustom, []string{f})
}

190
vendor/github.com/spf13/cobra/cobra.go generated vendored Normal file
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// Copyright © 2013 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Commands similar to git, go tools and other modern CLI tools
// inspired by go, go-Commander, gh and subcommand
package cobra
import (
"fmt"
"io"
"reflect"
"strconv"
"strings"
"text/template"
"unicode"
)
var templateFuncs = template.FuncMap{
"trim": strings.TrimSpace,
"trimRightSpace": trimRightSpace,
"trimTrailingWhitespaces": trimRightSpace,
"appendIfNotPresent": appendIfNotPresent,
"rpad": rpad,
"gt": Gt,
"eq": Eq,
}
var initializers []func()
// EnablePrefixMatching allows to set automatic prefix matching. Automatic prefix matching can be a dangerous thing
// to automatically enable in CLI tools.
// Set this to true to enable it.
var EnablePrefixMatching = false
// EnableCommandSorting controls sorting of the slice of commands, which is turned on by default.
// To disable sorting, set it to false.
var EnableCommandSorting = true
// MousetrapHelpText enables an information splash screen on Windows
// if the CLI is started from explorer.exe.
// To disable the mousetrap, just set this variable to blank string ("").
// Works only on Microsoft Windows.
var MousetrapHelpText string = `This is a command line tool.
You need to open cmd.exe and run it from there.
`
// AddTemplateFunc adds a template function that's available to Usage and Help
// template generation.
func AddTemplateFunc(name string, tmplFunc interface{}) {
templateFuncs[name] = tmplFunc
}
// AddTemplateFuncs adds multiple template functions that are available to Usage and
// Help template generation.
func AddTemplateFuncs(tmplFuncs template.FuncMap) {
for k, v := range tmplFuncs {
templateFuncs[k] = v
}
}
// OnInitialize takes a series of func() arguments and appends them to a slice of func().
func OnInitialize(y ...func()) {
initializers = append(initializers, y...)
}
// FIXME Gt is unused by cobra and should be removed in a version 2. It exists only for compatibility with users of cobra.
// Gt takes two types and checks whether the first type is greater than the second. In case of types Arrays, Chans,
// Maps and Slices, Gt will compare their lengths. Ints are compared directly while strings are first parsed as
// ints and then compared.
func Gt(a interface{}, b interface{}) bool {
var left, right int64
av := reflect.ValueOf(a)
switch av.Kind() {
case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
left = int64(av.Len())
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
left = av.Int()
case reflect.String:
left, _ = strconv.ParseInt(av.String(), 10, 64)
}
bv := reflect.ValueOf(b)
switch bv.Kind() {
case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
right = int64(bv.Len())
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
right = bv.Int()
case reflect.String:
right, _ = strconv.ParseInt(bv.String(), 10, 64)
}
return left > right
}
// FIXME Eq is unused by cobra and should be removed in a version 2. It exists only for compatibility with users of cobra.
// Eq takes two types and checks whether they are equal. Supported types are int and string. Unsupported types will panic.
func Eq(a interface{}, b interface{}) bool {
av := reflect.ValueOf(a)
bv := reflect.ValueOf(b)
switch av.Kind() {
case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
panic("Eq called on unsupported type")
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return av.Int() == bv.Int()
case reflect.String:
return av.String() == bv.String()
}
return false
}
func trimRightSpace(s string) string {
return strings.TrimRightFunc(s, unicode.IsSpace)
}
// FIXME appendIfNotPresent is unused by cobra and should be removed in a version 2. It exists only for compatibility with users of cobra.
// appendIfNotPresent will append stringToAppend to the end of s, but only if it's not yet present in s.
func appendIfNotPresent(s, stringToAppend string) string {
if strings.Contains(s, stringToAppend) {
return s
}
return s + " " + stringToAppend
}
// rpad adds padding to the right of a string.
func rpad(s string, padding int) string {
template := fmt.Sprintf("%%-%ds", padding)
return fmt.Sprintf(template, s)
}
// tmpl executes the given template text on data, writing the result to w.
func tmpl(w io.Writer, text string, data interface{}) error {
t := template.New("top")
t.Funcs(templateFuncs)
template.Must(t.Parse(text))
return t.Execute(w, data)
}
// ld compares two strings and returns the levenshtein distance between them.
func ld(s, t string, ignoreCase bool) int {
if ignoreCase {
s = strings.ToLower(s)
t = strings.ToLower(t)
}
d := make([][]int, len(s)+1)
for i := range d {
d[i] = make([]int, len(t)+1)
}
for i := range d {
d[i][0] = i
}
for j := range d[0] {
d[0][j] = j
}
for j := 1; j <= len(t); j++ {
for i := 1; i <= len(s); i++ {
if s[i-1] == t[j-1] {
d[i][j] = d[i-1][j-1]
} else {
min := d[i-1][j]
if d[i][j-1] < min {
min = d[i][j-1]
}
if d[i-1][j-1] < min {
min = d[i-1][j-1]
}
d[i][j] = min + 1
}
}
}
return d[len(s)][len(t)]
}

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vendor/github.com/spf13/cobra/command.go generated vendored Normal file
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vendor/github.com/spf13/cobra/command_notwin.go generated vendored Normal file
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// +build !windows
package cobra
var preExecHookFn func(*Command)

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vendor/github.com/spf13/cobra/command_win.go generated vendored Normal file
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// +build windows
package cobra
import (
"os"
"time"
"github.com/inconshreveable/mousetrap"
)
var preExecHookFn = preExecHook
func preExecHook(c *Command) {
if MousetrapHelpText != "" && mousetrap.StartedByExplorer() {
c.Print(MousetrapHelpText)
time.Sleep(5 * time.Second)
os.Exit(1)
}
}

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vendor/github.com/spf13/cobra/zsh_completions.go generated vendored Normal file
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package cobra
import (
"bytes"
"fmt"
"io"
"strings"
)
// GenZshCompletion generates a zsh completion file and writes to the passed writer.
func (cmd *Command) GenZshCompletion(w io.Writer) error {
buf := new(bytes.Buffer)
writeHeader(buf, cmd)
maxDepth := maxDepth(cmd)
writeLevelMapping(buf, maxDepth)
writeLevelCases(buf, maxDepth, cmd)
_, err := buf.WriteTo(w)
return err
}
func writeHeader(w io.Writer, cmd *Command) {
fmt.Fprintf(w, "#compdef %s\n\n", cmd.Name())
}
func maxDepth(c *Command) int {
if len(c.Commands()) == 0 {
return 0
}
maxDepthSub := 0
for _, s := range c.Commands() {
subDepth := maxDepth(s)
if subDepth > maxDepthSub {
maxDepthSub = subDepth
}
}
return 1 + maxDepthSub
}
func writeLevelMapping(w io.Writer, numLevels int) {
fmt.Fprintln(w, `_arguments \`)
for i := 1; i <= numLevels; i++ {
fmt.Fprintf(w, ` '%d: :->level%d' \`, i, i)
fmt.Fprintln(w)
}
fmt.Fprintf(w, ` '%d: :%s'`, numLevels+1, "_files")
fmt.Fprintln(w)
}
func writeLevelCases(w io.Writer, maxDepth int, root *Command) {
fmt.Fprintln(w, "case $state in")
defer fmt.Fprintln(w, "esac")
for i := 1; i <= maxDepth; i++ {
fmt.Fprintf(w, " level%d)\n", i)
writeLevel(w, root, i)
fmt.Fprintln(w, " ;;")
}
fmt.Fprintln(w, " *)")
fmt.Fprintln(w, " _arguments '*: :_files'")
fmt.Fprintln(w, " ;;")
}
func writeLevel(w io.Writer, root *Command, i int) {
fmt.Fprintf(w, " case $words[%d] in\n", i)
defer fmt.Fprintln(w, " esac")
commands := filterByLevel(root, i)
byParent := groupByParent(commands)
for p, c := range byParent {
names := names(c)
fmt.Fprintf(w, " %s)\n", p)
fmt.Fprintf(w, " _arguments '%d: :(%s)'\n", i, strings.Join(names, " "))
fmt.Fprintln(w, " ;;")
}
fmt.Fprintln(w, " *)")
fmt.Fprintln(w, " _arguments '*: :_files'")
fmt.Fprintln(w, " ;;")
}
func filterByLevel(c *Command, l int) []*Command {
cs := make([]*Command, 0)
if l == 0 {
cs = append(cs, c)
return cs
}
for _, s := range c.Commands() {
cs = append(cs, filterByLevel(s, l-1)...)
}
return cs
}
func groupByParent(commands []*Command) map[string][]*Command {
m := make(map[string][]*Command)
for _, c := range commands {
parent := c.Parent()
if parent == nil {
continue
}
m[parent.Name()] = append(m[parent.Name()], c)
}
return m
}
func names(commands []*Command) []string {
ns := make([]string, len(commands))
for i, c := range commands {
ns[i] = c.Name()
}
return ns
}

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vendor/github.com/spf13/pflag/LICENSE generated vendored Normal file
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Copyright (c) 2012 Alex Ogier. All rights reserved.
Copyright (c) 2012 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

296
vendor/github.com/spf13/pflag/README.md generated vendored Normal file
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[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/spf13/pflag)
[![Go Report Card](https://goreportcard.com/badge/github.com/spf13/pflag)](https://goreportcard.com/report/github.com/spf13/pflag)
[![GoDoc](https://godoc.org/github.com/spf13/pflag?status.svg)](https://godoc.org/github.com/spf13/pflag)
## Description
pflag is a drop-in replacement for Go's flag package, implementing
POSIX/GNU-style --flags.
pflag is compatible with the [GNU extensions to the POSIX recommendations
for command-line options][1]. For a more precise description, see the
"Command-line flag syntax" section below.
[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
pflag is available under the same style of BSD license as the Go language,
which can be found in the LICENSE file.
## Installation
pflag is available using the standard `go get` command.
Install by running:
go get github.com/spf13/pflag
Run tests by running:
go test github.com/spf13/pflag
## Usage
pflag is a drop-in replacement of Go's native flag package. If you import
pflag under the name "flag" then all code should continue to function
with no changes.
``` go
import flag "github.com/spf13/pflag"
```
There is one exception to this: if you directly instantiate the Flag struct
there is one more field "Shorthand" that you will need to set.
Most code never instantiates this struct directly, and instead uses
functions such as String(), BoolVar(), and Var(), and is therefore
unaffected.
Define flags using flag.String(), Bool(), Int(), etc.
This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
``` go
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
```
If you like, you can bind the flag to a variable using the Var() functions.
``` go
var flagvar int
func init() {
flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
}
```
Or you can create custom flags that satisfy the Value interface (with
pointer receivers) and couple them to flag parsing by
``` go
flag.Var(&flagVal, "name", "help message for flagname")
```
For such flags, the default value is just the initial value of the variable.
After all flags are defined, call
``` go
flag.Parse()
```
to parse the command line into the defined flags.
Flags may then be used directly. If you're using the flags themselves,
they are all pointers; if you bind to variables, they're values.
``` go
fmt.Println("ip has value ", *ip)
fmt.Println("flagvar has value ", flagvar)
```
There are helpers function to get values later if you have the FlagSet but
it was difficult to keep up with all of the flag pointers in your code.
If you have a pflag.FlagSet with a flag called 'flagname' of type int you
can use GetInt() to get the int value. But notice that 'flagname' must exist
and it must be an int. GetString("flagname") will fail.
``` go
i, err := flagset.GetInt("flagname")
```
After parsing, the arguments after the flag are available as the
slice flag.Args() or individually as flag.Arg(i).
The arguments are indexed from 0 through flag.NArg()-1.
The pflag package also defines some new functions that are not in flag,
that give one-letter shorthands for flags. You can use these by appending
'P' to the name of any function that defines a flag.
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
var flagvar bool
func init() {
flag.BoolVarP(&flagvar, "boolname", "b", true, "help message")
}
flag.VarP(&flagVal, "varname", "v", "help message")
```
Shorthand letters can be used with single dashes on the command line.
Boolean shorthand flags can be combined with other shorthand flags.
The default set of command-line flags is controlled by
top-level functions. The FlagSet type allows one to define
independent sets of flags, such as to implement subcommands
in a command-line interface. The methods of FlagSet are
analogous to the top-level functions for the command-line
flag set.
## Setting no option default values for flags
After you create a flag it is possible to set the pflag.NoOptDefVal for
the given flag. Doing this changes the meaning of the flag slightly. If
a flag has a NoOptDefVal and the flag is set on the command line without
an option the flag will be set to the NoOptDefVal. For example given:
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
flag.Lookup("flagname").NoOptDefVal = "4321"
```
Would result in something like
| Parsed Arguments | Resulting Value |
| ------------- | ------------- |
| --flagname=1357 | ip=1357 |
| --flagname | ip=4321 |
| [nothing] | ip=1234 |
## Command line flag syntax
```
--flag // boolean flags, or flags with no option default values
--flag x // only on flags without a default value
--flag=x
```
Unlike the flag package, a single dash before an option means something
different than a double dash. Single dashes signify a series of shorthand
letters for flags. All but the last shorthand letter must be boolean flags
or a flag with a default value
```
// boolean or flags where the 'no option default value' is set
-f
-f=true
-abc
but
-b true is INVALID
// non-boolean and flags without a 'no option default value'
-n 1234
-n=1234
-n1234
// mixed
-abcs "hello"
-absd="hello"
-abcs1234
```
Flag parsing stops after the terminator "--". Unlike the flag package,
flags can be interspersed with arguments anywhere on the command line
before this terminator.
Integer flags accept 1234, 0664, 0x1234 and may be negative.
Boolean flags (in their long form) accept 1, 0, t, f, true, false,
TRUE, FALSE, True, False.
Duration flags accept any input valid for time.ParseDuration.
## Mutating or "Normalizing" Flag names
It is possible to set a custom flag name 'normalization function.' It allows flag names to be mutated both when created in the code and when used on the command line to some 'normalized' form. The 'normalized' form is used for comparison. Two examples of using the custom normalization func follow.
**Example #1**: You want -, _, and . in flags to compare the same. aka --my-flag == --my_flag == --my.flag
``` go
func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
from := []string{"-", "_"}
to := "."
for _, sep := range from {
name = strings.Replace(name, sep, to, -1)
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(wordSepNormalizeFunc)
```
**Example #2**: You want to alias two flags. aka --old-flag-name == --new-flag-name
``` go
func aliasNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
switch name {
case "old-flag-name":
name = "new-flag-name"
break
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(aliasNormalizeFunc)
```
## Deprecating a flag or its shorthand
It is possible to deprecate a flag, or just its shorthand. Deprecating a flag/shorthand hides it from help text and prints a usage message when the deprecated flag/shorthand is used.
**Example #1**: You want to deprecate a flag named "badflag" as well as inform the users what flag they should use instead.
```go
// deprecate a flag by specifying its name and a usage message
flags.MarkDeprecated("badflag", "please use --good-flag instead")
```
This hides "badflag" from help text, and prints `Flag --badflag has been deprecated, please use --good-flag instead` when "badflag" is used.
**Example #2**: You want to keep a flag name "noshorthandflag" but deprecate its shortname "n".
```go
// deprecate a flag shorthand by specifying its flag name and a usage message
flags.MarkShorthandDeprecated("noshorthandflag", "please use --noshorthandflag only")
```
This hides the shortname "n" from help text, and prints `Flag shorthand -n has been deprecated, please use --noshorthandflag only` when the shorthand "n" is used.
Note that usage message is essential here, and it should not be empty.
## Hidden flags
It is possible to mark a flag as hidden, meaning it will still function as normal, however will not show up in usage/help text.
**Example**: You have a flag named "secretFlag" that you need for internal use only and don't want it showing up in help text, or for its usage text to be available.
```go
// hide a flag by specifying its name
flags.MarkHidden("secretFlag")
```
## Disable sorting of flags
`pflag` allows you to disable sorting of flags for help and usage message.
**Example**:
```go
flags.BoolP("verbose", "v", false, "verbose output")
flags.String("coolflag", "yeaah", "it's really cool flag")
flags.Int("usefulflag", 777, "sometimes it's very useful")
flags.SortFlags = false
flags.PrintDefaults()
```
**Output**:
```
-v, --verbose verbose output
--coolflag string it's really cool flag (default "yeaah")
--usefulflag int sometimes it's very useful (default 777)
```
## Supporting Go flags when using pflag
In order to support flags defined using Go's `flag` package, they must be added to the `pflag` flagset. This is usually necessary
to support flags defined by third-party dependencies (e.g. `golang/glog`).
**Example**: You want to add the Go flags to the `CommandLine` flagset
```go
import (
goflag "flag"
flag "github.com/spf13/pflag"
)
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
func main() {
flag.CommandLine.AddGoFlagSet(goflag.CommandLine)
flag.Parse()
}
```
## More info
You can see the full reference documentation of the pflag package
[at godoc.org][3], or through go's standard documentation system by
running `godoc -http=:6060` and browsing to
[http://localhost:6060/pkg/github.com/spf13/pflag][2] after
installation.
[2]: http://localhost:6060/pkg/github.com/spf13/pflag
[3]: http://godoc.org/github.com/spf13/pflag

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package pflag
import "strconv"
// optional interface to indicate boolean flags that can be
// supplied without "=value" text
type boolFlag interface {
Value
IsBoolFlag() bool
}
// -- bool Value
type boolValue bool
func newBoolValue(val bool, p *bool) *boolValue {
*p = val
return (*boolValue)(p)
}
func (b *boolValue) Set(s string) error {
v, err := strconv.ParseBool(s)
*b = boolValue(v)
return err
}
func (b *boolValue) Type() string {
return "bool"
}
func (b *boolValue) String() string { return strconv.FormatBool(bool(*b)) }
func (b *boolValue) IsBoolFlag() bool { return true }
func boolConv(sval string) (interface{}, error) {
return strconv.ParseBool(sval)
}
// GetBool return the bool value of a flag with the given name
func (f *FlagSet) GetBool(name string) (bool, error) {
val, err := f.getFlagType(name, "bool", boolConv)
if err != nil {
return false, err
}
return val.(bool), nil
}
// BoolVar defines a bool flag with specified name, default value, and usage string.
// The argument p points to a bool variable in which to store the value of the flag.
func (f *FlagSet) BoolVar(p *bool, name string, value bool, usage string) {
f.BoolVarP(p, name, "", value, usage)
}
// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
flag := f.VarPF(newBoolValue(value, p), name, shorthand, usage)
flag.NoOptDefVal = "true"
}
// BoolVar defines a bool flag with specified name, default value, and usage string.
// The argument p points to a bool variable in which to store the value of the flag.
func BoolVar(p *bool, name string, value bool, usage string) {
BoolVarP(p, name, "", value, usage)
}
// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
func BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
flag := CommandLine.VarPF(newBoolValue(value, p), name, shorthand, usage)
flag.NoOptDefVal = "true"
}
// Bool defines a bool flag with specified name, default value, and usage string.
// The return value is the address of a bool variable that stores the value of the flag.
func (f *FlagSet) Bool(name string, value bool, usage string) *bool {
return f.BoolP(name, "", value, usage)
}
// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BoolP(name, shorthand string, value bool, usage string) *bool {
p := new(bool)
f.BoolVarP(p, name, shorthand, value, usage)
return p
}
// Bool defines a bool flag with specified name, default value, and usage string.
// The return value is the address of a bool variable that stores the value of the flag.
func Bool(name string, value bool, usage string) *bool {
return BoolP(name, "", value, usage)
}
// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
func BoolP(name, shorthand string, value bool, usage string) *bool {
b := CommandLine.BoolP(name, shorthand, value, usage)
return b
}

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package pflag
import (
"io"
"strconv"
"strings"
)
// -- boolSlice Value
type boolSliceValue struct {
value *[]bool
changed bool
}
func newBoolSliceValue(val []bool, p *[]bool) *boolSliceValue {
bsv := new(boolSliceValue)
bsv.value = p
*bsv.value = val
return bsv
}
// Set converts, and assigns, the comma-separated boolean argument string representation as the []bool value of this flag.
// If Set is called on a flag that already has a []bool assigned, the newly converted values will be appended.
func (s *boolSliceValue) Set(val string) error {
// remove all quote characters
rmQuote := strings.NewReplacer(`"`, "", `'`, "", "`", "")
// read flag arguments with CSV parser
boolStrSlice, err := readAsCSV(rmQuote.Replace(val))
if err != nil && err != io.EOF {
return err
}
// parse boolean values into slice
out := make([]bool, 0, len(boolStrSlice))
for _, boolStr := range boolStrSlice {
b, err := strconv.ParseBool(strings.TrimSpace(boolStr))
if err != nil {
return err
}
out = append(out, b)
}
if !s.changed {
*s.value = out
} else {
*s.value = append(*s.value, out...)
}
s.changed = true
return nil
}
// Type returns a string that uniquely represents this flag's type.
func (s *boolSliceValue) Type() string {
return "boolSlice"
}
// String defines a "native" format for this boolean slice flag value.
func (s *boolSliceValue) String() string {
boolStrSlice := make([]string, len(*s.value))
for i, b := range *s.value {
boolStrSlice[i] = strconv.FormatBool(b)
}
out, _ := writeAsCSV(boolStrSlice)
return "[" + out + "]"
}
func boolSliceConv(val string) (interface{}, error) {
val = strings.Trim(val, "[]")
// Empty string would cause a slice with one (empty) entry
if len(val) == 0 {
return []bool{}, nil
}
ss := strings.Split(val, ",")
out := make([]bool, len(ss))
for i, t := range ss {
var err error
out[i], err = strconv.ParseBool(t)
if err != nil {
return nil, err
}
}
return out, nil
}
// GetBoolSlice returns the []bool value of a flag with the given name.
func (f *FlagSet) GetBoolSlice(name string) ([]bool, error) {
val, err := f.getFlagType(name, "boolSlice", boolSliceConv)
if err != nil {
return []bool{}, err
}
return val.([]bool), nil
}
// BoolSliceVar defines a boolSlice flag with specified name, default value, and usage string.
// The argument p points to a []bool variable in which to store the value of the flag.
func (f *FlagSet) BoolSliceVar(p *[]bool, name string, value []bool, usage string) {
f.VarP(newBoolSliceValue(value, p), name, "", usage)
}
// BoolSliceVarP is like BoolSliceVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BoolSliceVarP(p *[]bool, name, shorthand string, value []bool, usage string) {
f.VarP(newBoolSliceValue(value, p), name, shorthand, usage)
}
// BoolSliceVar defines a []bool flag with specified name, default value, and usage string.
// The argument p points to a []bool variable in which to store the value of the flag.
func BoolSliceVar(p *[]bool, name string, value []bool, usage string) {
CommandLine.VarP(newBoolSliceValue(value, p), name, "", usage)
}
// BoolSliceVarP is like BoolSliceVar, but accepts a shorthand letter that can be used after a single dash.
func BoolSliceVarP(p *[]bool, name, shorthand string, value []bool, usage string) {
CommandLine.VarP(newBoolSliceValue(value, p), name, shorthand, usage)
}
// BoolSlice defines a []bool flag with specified name, default value, and usage string.
// The return value is the address of a []bool variable that stores the value of the flag.
func (f *FlagSet) BoolSlice(name string, value []bool, usage string) *[]bool {
p := []bool{}
f.BoolSliceVarP(&p, name, "", value, usage)
return &p
}
// BoolSliceP is like BoolSlice, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BoolSliceP(name, shorthand string, value []bool, usage string) *[]bool {
p := []bool{}
f.BoolSliceVarP(&p, name, shorthand, value, usage)
return &p
}
// BoolSlice defines a []bool flag with specified name, default value, and usage string.
// The return value is the address of a []bool variable that stores the value of the flag.
func BoolSlice(name string, value []bool, usage string) *[]bool {
return CommandLine.BoolSliceP(name, "", value, usage)
}
// BoolSliceP is like BoolSlice, but accepts a shorthand letter that can be used after a single dash.
func BoolSliceP(name, shorthand string, value []bool, usage string) *[]bool {
return CommandLine.BoolSliceP(name, shorthand, value, usage)
}

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package pflag
import "strconv"
// -- count Value
type countValue int
func newCountValue(val int, p *int) *countValue {
*p = val
return (*countValue)(p)
}
func (i *countValue) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 64)
// -1 means that no specific value was passed, so increment
if v == -1 {
*i = countValue(*i + 1)
} else {
*i = countValue(v)
}
return err
}
func (i *countValue) Type() string {
return "count"
}
func (i *countValue) String() string { return strconv.Itoa(int(*i)) }
func countConv(sval string) (interface{}, error) {
i, err := strconv.Atoi(sval)
if err != nil {
return nil, err
}
return i, nil
}
// GetCount return the int value of a flag with the given name
func (f *FlagSet) GetCount(name string) (int, error) {
val, err := f.getFlagType(name, "count", countConv)
if err != nil {
return 0, err
}
return val.(int), nil
}
// CountVar defines a count flag with specified name, default value, and usage string.
// The argument p points to an int variable in which to store the value of the flag.
// A count flag will add 1 to its value evey time it is found on the command line
func (f *FlagSet) CountVar(p *int, name string, usage string) {
f.CountVarP(p, name, "", usage)
}
// CountVarP is like CountVar only take a shorthand for the flag name.
func (f *FlagSet) CountVarP(p *int, name, shorthand string, usage string) {
flag := f.VarPF(newCountValue(0, p), name, shorthand, usage)
flag.NoOptDefVal = "-1"
}
// CountVar like CountVar only the flag is placed on the CommandLine instead of a given flag set
func CountVar(p *int, name string, usage string) {
CommandLine.CountVar(p, name, usage)
}
// CountVarP is like CountVar only take a shorthand for the flag name.
func CountVarP(p *int, name, shorthand string, usage string) {
CommandLine.CountVarP(p, name, shorthand, usage)
}
// Count defines a count flag with specified name, default value, and usage string.
// The return value is the address of an int variable that stores the value of the flag.
// A count flag will add 1 to its value evey time it is found on the command line
func (f *FlagSet) Count(name string, usage string) *int {
p := new(int)
f.CountVarP(p, name, "", usage)
return p
}
// CountP is like Count only takes a shorthand for the flag name.
func (f *FlagSet) CountP(name, shorthand string, usage string) *int {
p := new(int)
f.CountVarP(p, name, shorthand, usage)
return p
}
// Count defines a count flag with specified name, default value, and usage string.
// The return value is the address of an int variable that stores the value of the flag.
// A count flag will add 1 to its value evey time it is found on the command line
func Count(name string, usage string) *int {
return CommandLine.CountP(name, "", usage)
}
// CountP is like Count only takes a shorthand for the flag name.
func CountP(name, shorthand string, usage string) *int {
return CommandLine.CountP(name, shorthand, usage)
}

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package pflag
import (
"time"
)
// -- time.Duration Value
type durationValue time.Duration
func newDurationValue(val time.Duration, p *time.Duration) *durationValue {
*p = val
return (*durationValue)(p)
}
func (d *durationValue) Set(s string) error {
v, err := time.ParseDuration(s)
*d = durationValue(v)
return err
}
func (d *durationValue) Type() string {
return "duration"
}
func (d *durationValue) String() string { return (*time.Duration)(d).String() }
func durationConv(sval string) (interface{}, error) {
return time.ParseDuration(sval)
}
// GetDuration return the duration value of a flag with the given name
func (f *FlagSet) GetDuration(name string) (time.Duration, error) {
val, err := f.getFlagType(name, "duration", durationConv)
if err != nil {
return 0, err
}
return val.(time.Duration), nil
}
// DurationVar defines a time.Duration flag with specified name, default value, and usage string.
// The argument p points to a time.Duration variable in which to store the value of the flag.
func (f *FlagSet) DurationVar(p *time.Duration, name string, value time.Duration, usage string) {
f.VarP(newDurationValue(value, p), name, "", usage)
}
// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
f.VarP(newDurationValue(value, p), name, shorthand, usage)
}
// DurationVar defines a time.Duration flag with specified name, default value, and usage string.
// The argument p points to a time.Duration variable in which to store the value of the flag.
func DurationVar(p *time.Duration, name string, value time.Duration, usage string) {
CommandLine.VarP(newDurationValue(value, p), name, "", usage)
}
// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
func DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
CommandLine.VarP(newDurationValue(value, p), name, shorthand, usage)
}
// Duration defines a time.Duration flag with specified name, default value, and usage string.
// The return value is the address of a time.Duration variable that stores the value of the flag.
func (f *FlagSet) Duration(name string, value time.Duration, usage string) *time.Duration {
p := new(time.Duration)
f.DurationVarP(p, name, "", value, usage)
return p
}
// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
p := new(time.Duration)
f.DurationVarP(p, name, shorthand, value, usage)
return p
}
// Duration defines a time.Duration flag with specified name, default value, and usage string.
// The return value is the address of a time.Duration variable that stores the value of the flag.
func Duration(name string, value time.Duration, usage string) *time.Duration {
return CommandLine.DurationP(name, "", value, usage)
}
// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
func DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
return CommandLine.DurationP(name, shorthand, value, usage)
}

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package pflag
import "strconv"
// -- float32 Value
type float32Value float32
func newFloat32Value(val float32, p *float32) *float32Value {
*p = val
return (*float32Value)(p)
}
func (f *float32Value) Set(s string) error {
v, err := strconv.ParseFloat(s, 32)
*f = float32Value(v)
return err
}
func (f *float32Value) Type() string {
return "float32"
}
func (f *float32Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 32) }
func float32Conv(sval string) (interface{}, error) {
v, err := strconv.ParseFloat(sval, 32)
if err != nil {
return 0, err
}
return float32(v), nil
}
// GetFloat32 return the float32 value of a flag with the given name
func (f *FlagSet) GetFloat32(name string) (float32, error) {
val, err := f.getFlagType(name, "float32", float32Conv)
if err != nil {
return 0, err
}
return val.(float32), nil
}
// Float32Var defines a float32 flag with specified name, default value, and usage string.
// The argument p points to a float32 variable in which to store the value of the flag.
func (f *FlagSet) Float32Var(p *float32, name string, value float32, usage string) {
f.VarP(newFloat32Value(value, p), name, "", usage)
}
// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
f.VarP(newFloat32Value(value, p), name, shorthand, usage)
}
// Float32Var defines a float32 flag with specified name, default value, and usage string.
// The argument p points to a float32 variable in which to store the value of the flag.
func Float32Var(p *float32, name string, value float32, usage string) {
CommandLine.VarP(newFloat32Value(value, p), name, "", usage)
}
// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
func Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
CommandLine.VarP(newFloat32Value(value, p), name, shorthand, usage)
}
// Float32 defines a float32 flag with specified name, default value, and usage string.
// The return value is the address of a float32 variable that stores the value of the flag.
func (f *FlagSet) Float32(name string, value float32, usage string) *float32 {
p := new(float32)
f.Float32VarP(p, name, "", value, usage)
return p
}
// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Float32P(name, shorthand string, value float32, usage string) *float32 {
p := new(float32)
f.Float32VarP(p, name, shorthand, value, usage)
return p
}
// Float32 defines a float32 flag with specified name, default value, and usage string.
// The return value is the address of a float32 variable that stores the value of the flag.
func Float32(name string, value float32, usage string) *float32 {
return CommandLine.Float32P(name, "", value, usage)
}
// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
func Float32P(name, shorthand string, value float32, usage string) *float32 {
return CommandLine.Float32P(name, shorthand, value, usage)
}

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package pflag
import "strconv"
// -- float64 Value
type float64Value float64
func newFloat64Value(val float64, p *float64) *float64Value {
*p = val
return (*float64Value)(p)
}
func (f *float64Value) Set(s string) error {
v, err := strconv.ParseFloat(s, 64)
*f = float64Value(v)
return err
}
func (f *float64Value) Type() string {
return "float64"
}
func (f *float64Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 64) }
func float64Conv(sval string) (interface{}, error) {
return strconv.ParseFloat(sval, 64)
}
// GetFloat64 return the float64 value of a flag with the given name
func (f *FlagSet) GetFloat64(name string) (float64, error) {
val, err := f.getFlagType(name, "float64", float64Conv)
if err != nil {
return 0, err
}
return val.(float64), nil
}
// Float64Var defines a float64 flag with specified name, default value, and usage string.
// The argument p points to a float64 variable in which to store the value of the flag.
func (f *FlagSet) Float64Var(p *float64, name string, value float64, usage string) {
f.VarP(newFloat64Value(value, p), name, "", usage)
}
// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
f.VarP(newFloat64Value(value, p), name, shorthand, usage)
}
// Float64Var defines a float64 flag with specified name, default value, and usage string.
// The argument p points to a float64 variable in which to store the value of the flag.
func Float64Var(p *float64, name string, value float64, usage string) {
CommandLine.VarP(newFloat64Value(value, p), name, "", usage)
}
// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
func Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
CommandLine.VarP(newFloat64Value(value, p), name, shorthand, usage)
}
// Float64 defines a float64 flag with specified name, default value, and usage string.
// The return value is the address of a float64 variable that stores the value of the flag.
func (f *FlagSet) Float64(name string, value float64, usage string) *float64 {
p := new(float64)
f.Float64VarP(p, name, "", value, usage)
return p
}
// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Float64P(name, shorthand string, value float64, usage string) *float64 {
p := new(float64)
f.Float64VarP(p, name, shorthand, value, usage)
return p
}
// Float64 defines a float64 flag with specified name, default value, and usage string.
// The return value is the address of a float64 variable that stores the value of the flag.
func Float64(name string, value float64, usage string) *float64 {
return CommandLine.Float64P(name, "", value, usage)
}
// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
func Float64P(name, shorthand string, value float64, usage string) *float64 {
return CommandLine.Float64P(name, shorthand, value, usage)
}

101
vendor/github.com/spf13/pflag/golangflag.go generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
goflag "flag"
"reflect"
"strings"
)
// flagValueWrapper implements pflag.Value around a flag.Value. The main
// difference here is the addition of the Type method that returns a string
// name of the type. As this is generally unknown, we approximate that with
// reflection.
type flagValueWrapper struct {
inner goflag.Value
flagType string
}
// We are just copying the boolFlag interface out of goflag as that is what
// they use to decide if a flag should get "true" when no arg is given.
type goBoolFlag interface {
goflag.Value
IsBoolFlag() bool
}
func wrapFlagValue(v goflag.Value) Value {
// If the flag.Value happens to also be a pflag.Value, just use it directly.
if pv, ok := v.(Value); ok {
return pv
}
pv := &flagValueWrapper{
inner: v,
}
t := reflect.TypeOf(v)
if t.Kind() == reflect.Interface || t.Kind() == reflect.Ptr {
t = t.Elem()
}
pv.flagType = strings.TrimSuffix(t.Name(), "Value")
return pv
}
func (v *flagValueWrapper) String() string {
return v.inner.String()
}
func (v *flagValueWrapper) Set(s string) error {
return v.inner.Set(s)
}
func (v *flagValueWrapper) Type() string {
return v.flagType
}
// PFlagFromGoFlag will return a *pflag.Flag given a *flag.Flag
// If the *flag.Flag.Name was a single character (ex: `v`) it will be accessiblei
// with both `-v` and `--v` in flags. If the golang flag was more than a single
// character (ex: `verbose`) it will only be accessible via `--verbose`
func PFlagFromGoFlag(goflag *goflag.Flag) *Flag {
// Remember the default value as a string; it won't change.
flag := &Flag{
Name: goflag.Name,
Usage: goflag.Usage,
Value: wrapFlagValue(goflag.Value),
// Looks like golang flags don't set DefValue correctly :-(
//DefValue: goflag.DefValue,
DefValue: goflag.Value.String(),
}
// Ex: if the golang flag was -v, allow both -v and --v to work
if len(flag.Name) == 1 {
flag.Shorthand = flag.Name
}
if fv, ok := goflag.Value.(goBoolFlag); ok && fv.IsBoolFlag() {
flag.NoOptDefVal = "true"
}
return flag
}
// AddGoFlag will add the given *flag.Flag to the pflag.FlagSet
func (f *FlagSet) AddGoFlag(goflag *goflag.Flag) {
if f.Lookup(goflag.Name) != nil {
return
}
newflag := PFlagFromGoFlag(goflag)
f.AddFlag(newflag)
}
// AddGoFlagSet will add the given *flag.FlagSet to the pflag.FlagSet
func (f *FlagSet) AddGoFlagSet(newSet *goflag.FlagSet) {
if newSet == nil {
return
}
newSet.VisitAll(func(goflag *goflag.Flag) {
f.AddGoFlag(goflag)
})
}

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vendor/github.com/spf13/pflag/int.go generated vendored Normal file
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package pflag
import "strconv"
// -- int Value
type intValue int
func newIntValue(val int, p *int) *intValue {
*p = val
return (*intValue)(p)
}
func (i *intValue) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 64)
*i = intValue(v)
return err
}
func (i *intValue) Type() string {
return "int"
}
func (i *intValue) String() string { return strconv.Itoa(int(*i)) }
func intConv(sval string) (interface{}, error) {
return strconv.Atoi(sval)
}
// GetInt return the int value of a flag with the given name
func (f *FlagSet) GetInt(name string) (int, error) {
val, err := f.getFlagType(name, "int", intConv)
if err != nil {
return 0, err
}
return val.(int), nil
}
// IntVar defines an int flag with specified name, default value, and usage string.
// The argument p points to an int variable in which to store the value of the flag.
func (f *FlagSet) IntVar(p *int, name string, value int, usage string) {
f.VarP(newIntValue(value, p), name, "", usage)
}
// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntVarP(p *int, name, shorthand string, value int, usage string) {
f.VarP(newIntValue(value, p), name, shorthand, usage)
}
// IntVar defines an int flag with specified name, default value, and usage string.
// The argument p points to an int variable in which to store the value of the flag.
func IntVar(p *int, name string, value int, usage string) {
CommandLine.VarP(newIntValue(value, p), name, "", usage)
}
// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
func IntVarP(p *int, name, shorthand string, value int, usage string) {
CommandLine.VarP(newIntValue(value, p), name, shorthand, usage)
}
// Int defines an int flag with specified name, default value, and usage string.
// The return value is the address of an int variable that stores the value of the flag.
func (f *FlagSet) Int(name string, value int, usage string) *int {
p := new(int)
f.IntVarP(p, name, "", value, usage)
return p
}
// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntP(name, shorthand string, value int, usage string) *int {
p := new(int)
f.IntVarP(p, name, shorthand, value, usage)
return p
}
// Int defines an int flag with specified name, default value, and usage string.
// The return value is the address of an int variable that stores the value of the flag.
func Int(name string, value int, usage string) *int {
return CommandLine.IntP(name, "", value, usage)
}
// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
func IntP(name, shorthand string, value int, usage string) *int {
return CommandLine.IntP(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/int32.go generated vendored Normal file
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package pflag
import "strconv"
// -- int32 Value
type int32Value int32
func newInt32Value(val int32, p *int32) *int32Value {
*p = val
return (*int32Value)(p)
}
func (i *int32Value) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 32)
*i = int32Value(v)
return err
}
func (i *int32Value) Type() string {
return "int32"
}
func (i *int32Value) String() string { return strconv.FormatInt(int64(*i), 10) }
func int32Conv(sval string) (interface{}, error) {
v, err := strconv.ParseInt(sval, 0, 32)
if err != nil {
return 0, err
}
return int32(v), nil
}
// GetInt32 return the int32 value of a flag with the given name
func (f *FlagSet) GetInt32(name string) (int32, error) {
val, err := f.getFlagType(name, "int32", int32Conv)
if err != nil {
return 0, err
}
return val.(int32), nil
}
// Int32Var defines an int32 flag with specified name, default value, and usage string.
// The argument p points to an int32 variable in which to store the value of the flag.
func (f *FlagSet) Int32Var(p *int32, name string, value int32, usage string) {
f.VarP(newInt32Value(value, p), name, "", usage)
}
// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
f.VarP(newInt32Value(value, p), name, shorthand, usage)
}
// Int32Var defines an int32 flag with specified name, default value, and usage string.
// The argument p points to an int32 variable in which to store the value of the flag.
func Int32Var(p *int32, name string, value int32, usage string) {
CommandLine.VarP(newInt32Value(value, p), name, "", usage)
}
// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
func Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
CommandLine.VarP(newInt32Value(value, p), name, shorthand, usage)
}
// Int32 defines an int32 flag with specified name, default value, and usage string.
// The return value is the address of an int32 variable that stores the value of the flag.
func (f *FlagSet) Int32(name string, value int32, usage string) *int32 {
p := new(int32)
f.Int32VarP(p, name, "", value, usage)
return p
}
// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Int32P(name, shorthand string, value int32, usage string) *int32 {
p := new(int32)
f.Int32VarP(p, name, shorthand, value, usage)
return p
}
// Int32 defines an int32 flag with specified name, default value, and usage string.
// The return value is the address of an int32 variable that stores the value of the flag.
func Int32(name string, value int32, usage string) *int32 {
return CommandLine.Int32P(name, "", value, usage)
}
// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
func Int32P(name, shorthand string, value int32, usage string) *int32 {
return CommandLine.Int32P(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/int64.go generated vendored Normal file
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package pflag
import "strconv"
// -- int64 Value
type int64Value int64
func newInt64Value(val int64, p *int64) *int64Value {
*p = val
return (*int64Value)(p)
}
func (i *int64Value) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 64)
*i = int64Value(v)
return err
}
func (i *int64Value) Type() string {
return "int64"
}
func (i *int64Value) String() string { return strconv.FormatInt(int64(*i), 10) }
func int64Conv(sval string) (interface{}, error) {
return strconv.ParseInt(sval, 0, 64)
}
// GetInt64 return the int64 value of a flag with the given name
func (f *FlagSet) GetInt64(name string) (int64, error) {
val, err := f.getFlagType(name, "int64", int64Conv)
if err != nil {
return 0, err
}
return val.(int64), nil
}
// Int64Var defines an int64 flag with specified name, default value, and usage string.
// The argument p points to an int64 variable in which to store the value of the flag.
func (f *FlagSet) Int64Var(p *int64, name string, value int64, usage string) {
f.VarP(newInt64Value(value, p), name, "", usage)
}
// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
f.VarP(newInt64Value(value, p), name, shorthand, usage)
}
// Int64Var defines an int64 flag with specified name, default value, and usage string.
// The argument p points to an int64 variable in which to store the value of the flag.
func Int64Var(p *int64, name string, value int64, usage string) {
CommandLine.VarP(newInt64Value(value, p), name, "", usage)
}
// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
func Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
CommandLine.VarP(newInt64Value(value, p), name, shorthand, usage)
}
// Int64 defines an int64 flag with specified name, default value, and usage string.
// The return value is the address of an int64 variable that stores the value of the flag.
func (f *FlagSet) Int64(name string, value int64, usage string) *int64 {
p := new(int64)
f.Int64VarP(p, name, "", value, usage)
return p
}
// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Int64P(name, shorthand string, value int64, usage string) *int64 {
p := new(int64)
f.Int64VarP(p, name, shorthand, value, usage)
return p
}
// Int64 defines an int64 flag with specified name, default value, and usage string.
// The return value is the address of an int64 variable that stores the value of the flag.
func Int64(name string, value int64, usage string) *int64 {
return CommandLine.Int64P(name, "", value, usage)
}
// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
func Int64P(name, shorthand string, value int64, usage string) *int64 {
return CommandLine.Int64P(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/int8.go generated vendored Normal file
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package pflag
import "strconv"
// -- int8 Value
type int8Value int8
func newInt8Value(val int8, p *int8) *int8Value {
*p = val
return (*int8Value)(p)
}
func (i *int8Value) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 8)
*i = int8Value(v)
return err
}
func (i *int8Value) Type() string {
return "int8"
}
func (i *int8Value) String() string { return strconv.FormatInt(int64(*i), 10) }
func int8Conv(sval string) (interface{}, error) {
v, err := strconv.ParseInt(sval, 0, 8)
if err != nil {
return 0, err
}
return int8(v), nil
}
// GetInt8 return the int8 value of a flag with the given name
func (f *FlagSet) GetInt8(name string) (int8, error) {
val, err := f.getFlagType(name, "int8", int8Conv)
if err != nil {
return 0, err
}
return val.(int8), nil
}
// Int8Var defines an int8 flag with specified name, default value, and usage string.
// The argument p points to an int8 variable in which to store the value of the flag.
func (f *FlagSet) Int8Var(p *int8, name string, value int8, usage string) {
f.VarP(newInt8Value(value, p), name, "", usage)
}
// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
f.VarP(newInt8Value(value, p), name, shorthand, usage)
}
// Int8Var defines an int8 flag with specified name, default value, and usage string.
// The argument p points to an int8 variable in which to store the value of the flag.
func Int8Var(p *int8, name string, value int8, usage string) {
CommandLine.VarP(newInt8Value(value, p), name, "", usage)
}
// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
func Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
CommandLine.VarP(newInt8Value(value, p), name, shorthand, usage)
}
// Int8 defines an int8 flag with specified name, default value, and usage string.
// The return value is the address of an int8 variable that stores the value of the flag.
func (f *FlagSet) Int8(name string, value int8, usage string) *int8 {
p := new(int8)
f.Int8VarP(p, name, "", value, usage)
return p
}
// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Int8P(name, shorthand string, value int8, usage string) *int8 {
p := new(int8)
f.Int8VarP(p, name, shorthand, value, usage)
return p
}
// Int8 defines an int8 flag with specified name, default value, and usage string.
// The return value is the address of an int8 variable that stores the value of the flag.
func Int8(name string, value int8, usage string) *int8 {
return CommandLine.Int8P(name, "", value, usage)
}
// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
func Int8P(name, shorthand string, value int8, usage string) *int8 {
return CommandLine.Int8P(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/int_slice.go generated vendored Normal file
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package pflag
import (
"fmt"
"strconv"
"strings"
)
// -- intSlice Value
type intSliceValue struct {
value *[]int
changed bool
}
func newIntSliceValue(val []int, p *[]int) *intSliceValue {
isv := new(intSliceValue)
isv.value = p
*isv.value = val
return isv
}
func (s *intSliceValue) Set(val string) error {
ss := strings.Split(val, ",")
out := make([]int, len(ss))
for i, d := range ss {
var err error
out[i], err = strconv.Atoi(d)
if err != nil {
return err
}
}
if !s.changed {
*s.value = out
} else {
*s.value = append(*s.value, out...)
}
s.changed = true
return nil
}
func (s *intSliceValue) Type() string {
return "intSlice"
}
func (s *intSliceValue) String() string {
out := make([]string, len(*s.value))
for i, d := range *s.value {
out[i] = fmt.Sprintf("%d", d)
}
return "[" + strings.Join(out, ",") + "]"
}
func intSliceConv(val string) (interface{}, error) {
val = strings.Trim(val, "[]")
// Empty string would cause a slice with one (empty) entry
if len(val) == 0 {
return []int{}, nil
}
ss := strings.Split(val, ",")
out := make([]int, len(ss))
for i, d := range ss {
var err error
out[i], err = strconv.Atoi(d)
if err != nil {
return nil, err
}
}
return out, nil
}
// GetIntSlice return the []int value of a flag with the given name
func (f *FlagSet) GetIntSlice(name string) ([]int, error) {
val, err := f.getFlagType(name, "intSlice", intSliceConv)
if err != nil {
return []int{}, err
}
return val.([]int), nil
}
// IntSliceVar defines a intSlice flag with specified name, default value, and usage string.
// The argument p points to a []int variable in which to store the value of the flag.
func (f *FlagSet) IntSliceVar(p *[]int, name string, value []int, usage string) {
f.VarP(newIntSliceValue(value, p), name, "", usage)
}
// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
f.VarP(newIntSliceValue(value, p), name, shorthand, usage)
}
// IntSliceVar defines a int[] flag with specified name, default value, and usage string.
// The argument p points to a int[] variable in which to store the value of the flag.
func IntSliceVar(p *[]int, name string, value []int, usage string) {
CommandLine.VarP(newIntSliceValue(value, p), name, "", usage)
}
// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
func IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
CommandLine.VarP(newIntSliceValue(value, p), name, shorthand, usage)
}
// IntSlice defines a []int flag with specified name, default value, and usage string.
// The return value is the address of a []int variable that stores the value of the flag.
func (f *FlagSet) IntSlice(name string, value []int, usage string) *[]int {
p := []int{}
f.IntSliceVarP(&p, name, "", value, usage)
return &p
}
// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntSliceP(name, shorthand string, value []int, usage string) *[]int {
p := []int{}
f.IntSliceVarP(&p, name, shorthand, value, usage)
return &p
}
// IntSlice defines a []int flag with specified name, default value, and usage string.
// The return value is the address of a []int variable that stores the value of the flag.
func IntSlice(name string, value []int, usage string) *[]int {
return CommandLine.IntSliceP(name, "", value, usage)
}
// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
func IntSliceP(name, shorthand string, value []int, usage string) *[]int {
return CommandLine.IntSliceP(name, shorthand, value, usage)
}

94
vendor/github.com/spf13/pflag/ip.go generated vendored Normal file
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package pflag
import (
"fmt"
"net"
"strings"
)
// -- net.IP value
type ipValue net.IP
func newIPValue(val net.IP, p *net.IP) *ipValue {
*p = val
return (*ipValue)(p)
}
func (i *ipValue) String() string { return net.IP(*i).String() }
func (i *ipValue) Set(s string) error {
ip := net.ParseIP(strings.TrimSpace(s))
if ip == nil {
return fmt.Errorf("failed to parse IP: %q", s)
}
*i = ipValue(ip)
return nil
}
func (i *ipValue) Type() string {
return "ip"
}
func ipConv(sval string) (interface{}, error) {
ip := net.ParseIP(sval)
if ip != nil {
return ip, nil
}
return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
}
// GetIP return the net.IP value of a flag with the given name
func (f *FlagSet) GetIP(name string) (net.IP, error) {
val, err := f.getFlagType(name, "ip", ipConv)
if err != nil {
return nil, err
}
return val.(net.IP), nil
}
// IPVar defines an net.IP flag with specified name, default value, and usage string.
// The argument p points to an net.IP variable in which to store the value of the flag.
func (f *FlagSet) IPVar(p *net.IP, name string, value net.IP, usage string) {
f.VarP(newIPValue(value, p), name, "", usage)
}
// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
f.VarP(newIPValue(value, p), name, shorthand, usage)
}
// IPVar defines an net.IP flag with specified name, default value, and usage string.
// The argument p points to an net.IP variable in which to store the value of the flag.
func IPVar(p *net.IP, name string, value net.IP, usage string) {
CommandLine.VarP(newIPValue(value, p), name, "", usage)
}
// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
func IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
CommandLine.VarP(newIPValue(value, p), name, shorthand, usage)
}
// IP defines an net.IP flag with specified name, default value, and usage string.
// The return value is the address of an net.IP variable that stores the value of the flag.
func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP {
p := new(net.IP)
f.IPVarP(p, name, "", value, usage)
return p
}
// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPP(name, shorthand string, value net.IP, usage string) *net.IP {
p := new(net.IP)
f.IPVarP(p, name, shorthand, value, usage)
return p
}
// IP defines an net.IP flag with specified name, default value, and usage string.
// The return value is the address of an net.IP variable that stores the value of the flag.
func IP(name string, value net.IP, usage string) *net.IP {
return CommandLine.IPP(name, "", value, usage)
}
// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
func IPP(name, shorthand string, value net.IP, usage string) *net.IP {
return CommandLine.IPP(name, shorthand, value, usage)
}

148
vendor/github.com/spf13/pflag/ip_slice.go generated vendored Normal file
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package pflag
import (
"fmt"
"io"
"net"
"strings"
)
// -- ipSlice Value
type ipSliceValue struct {
value *[]net.IP
changed bool
}
func newIPSliceValue(val []net.IP, p *[]net.IP) *ipSliceValue {
ipsv := new(ipSliceValue)
ipsv.value = p
*ipsv.value = val
return ipsv
}
// Set converts, and assigns, the comma-separated IP argument string representation as the []net.IP value of this flag.
// If Set is called on a flag that already has a []net.IP assigned, the newly converted values will be appended.
func (s *ipSliceValue) Set(val string) error {
// remove all quote characters
rmQuote := strings.NewReplacer(`"`, "", `'`, "", "`", "")
// read flag arguments with CSV parser
ipStrSlice, err := readAsCSV(rmQuote.Replace(val))
if err != nil && err != io.EOF {
return err
}
// parse ip values into slice
out := make([]net.IP, 0, len(ipStrSlice))
for _, ipStr := range ipStrSlice {
ip := net.ParseIP(strings.TrimSpace(ipStr))
if ip == nil {
return fmt.Errorf("invalid string being converted to IP address: %s", ipStr)
}
out = append(out, ip)
}
if !s.changed {
*s.value = out
} else {
*s.value = append(*s.value, out...)
}
s.changed = true
return nil
}
// Type returns a string that uniquely represents this flag's type.
func (s *ipSliceValue) Type() string {
return "ipSlice"
}
// String defines a "native" format for this net.IP slice flag value.
func (s *ipSliceValue) String() string {
ipStrSlice := make([]string, len(*s.value))
for i, ip := range *s.value {
ipStrSlice[i] = ip.String()
}
out, _ := writeAsCSV(ipStrSlice)
return "[" + out + "]"
}
func ipSliceConv(val string) (interface{}, error) {
val = strings.Trim(val, "[]")
// Emtpy string would cause a slice with one (empty) entry
if len(val) == 0 {
return []net.IP{}, nil
}
ss := strings.Split(val, ",")
out := make([]net.IP, len(ss))
for i, sval := range ss {
ip := net.ParseIP(strings.TrimSpace(sval))
if ip == nil {
return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
}
out[i] = ip
}
return out, nil
}
// GetIPSlice returns the []net.IP value of a flag with the given name
func (f *FlagSet) GetIPSlice(name string) ([]net.IP, error) {
val, err := f.getFlagType(name, "ipSlice", ipSliceConv)
if err != nil {
return []net.IP{}, err
}
return val.([]net.IP), nil
}
// IPSliceVar defines a ipSlice flag with specified name, default value, and usage string.
// The argument p points to a []net.IP variable in which to store the value of the flag.
func (f *FlagSet) IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
f.VarP(newIPSliceValue(value, p), name, "", usage)
}
// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
f.VarP(newIPSliceValue(value, p), name, shorthand, usage)
}
// IPSliceVar defines a []net.IP flag with specified name, default value, and usage string.
// The argument p points to a []net.IP variable in which to store the value of the flag.
func IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
CommandLine.VarP(newIPSliceValue(value, p), name, "", usage)
}
// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
func IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
CommandLine.VarP(newIPSliceValue(value, p), name, shorthand, usage)
}
// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
// The return value is the address of a []net.IP variable that stores the value of that flag.
func (f *FlagSet) IPSlice(name string, value []net.IP, usage string) *[]net.IP {
p := []net.IP{}
f.IPSliceVarP(&p, name, "", value, usage)
return &p
}
// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
p := []net.IP{}
f.IPSliceVarP(&p, name, shorthand, value, usage)
return &p
}
// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
// The return value is the address of a []net.IP variable that stores the value of the flag.
func IPSlice(name string, value []net.IP, usage string) *[]net.IP {
return CommandLine.IPSliceP(name, "", value, usage)
}
// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
func IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
return CommandLine.IPSliceP(name, shorthand, value, usage)
}

122
vendor/github.com/spf13/pflag/ipmask.go generated vendored Normal file
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package pflag
import (
"fmt"
"net"
"strconv"
)
// -- net.IPMask value
type ipMaskValue net.IPMask
func newIPMaskValue(val net.IPMask, p *net.IPMask) *ipMaskValue {
*p = val
return (*ipMaskValue)(p)
}
func (i *ipMaskValue) String() string { return net.IPMask(*i).String() }
func (i *ipMaskValue) Set(s string) error {
ip := ParseIPv4Mask(s)
if ip == nil {
return fmt.Errorf("failed to parse IP mask: %q", s)
}
*i = ipMaskValue(ip)
return nil
}
func (i *ipMaskValue) Type() string {
return "ipMask"
}
// ParseIPv4Mask written in IP form (e.g. 255.255.255.0).
// This function should really belong to the net package.
func ParseIPv4Mask(s string) net.IPMask {
mask := net.ParseIP(s)
if mask == nil {
if len(s) != 8 {
return nil
}
// net.IPMask.String() actually outputs things like ffffff00
// so write a horrible parser for that as well :-(
m := []int{}
for i := 0; i < 4; i++ {
b := "0x" + s[2*i:2*i+2]
d, err := strconv.ParseInt(b, 0, 0)
if err != nil {
return nil
}
m = append(m, int(d))
}
s := fmt.Sprintf("%d.%d.%d.%d", m[0], m[1], m[2], m[3])
mask = net.ParseIP(s)
if mask == nil {
return nil
}
}
return net.IPv4Mask(mask[12], mask[13], mask[14], mask[15])
}
func parseIPv4Mask(sval string) (interface{}, error) {
mask := ParseIPv4Mask(sval)
if mask == nil {
return nil, fmt.Errorf("unable to parse %s as net.IPMask", sval)
}
return mask, nil
}
// GetIPv4Mask return the net.IPv4Mask value of a flag with the given name
func (f *FlagSet) GetIPv4Mask(name string) (net.IPMask, error) {
val, err := f.getFlagType(name, "ipMask", parseIPv4Mask)
if err != nil {
return nil, err
}
return val.(net.IPMask), nil
}
// IPMaskVar defines an net.IPMask flag with specified name, default value, and usage string.
// The argument p points to an net.IPMask variable in which to store the value of the flag.
func (f *FlagSet) IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
f.VarP(newIPMaskValue(value, p), name, "", usage)
}
// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
f.VarP(newIPMaskValue(value, p), name, shorthand, usage)
}
// IPMaskVar defines an net.IPMask flag with specified name, default value, and usage string.
// The argument p points to an net.IPMask variable in which to store the value of the flag.
func IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
CommandLine.VarP(newIPMaskValue(value, p), name, "", usage)
}
// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
func IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
CommandLine.VarP(newIPMaskValue(value, p), name, shorthand, usage)
}
// IPMask defines an net.IPMask flag with specified name, default value, and usage string.
// The return value is the address of an net.IPMask variable that stores the value of the flag.
func (f *FlagSet) IPMask(name string, value net.IPMask, usage string) *net.IPMask {
p := new(net.IPMask)
f.IPMaskVarP(p, name, "", value, usage)
return p
}
// IPMaskP is like IPMask, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
p := new(net.IPMask)
f.IPMaskVarP(p, name, shorthand, value, usage)
return p
}
// IPMask defines an net.IPMask flag with specified name, default value, and usage string.
// The return value is the address of an net.IPMask variable that stores the value of the flag.
func IPMask(name string, value net.IPMask, usage string) *net.IPMask {
return CommandLine.IPMaskP(name, "", value, usage)
}
// IPMaskP is like IP, but accepts a shorthand letter that can be used after a single dash.
func IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
return CommandLine.IPMaskP(name, shorthand, value, usage)
}

98
vendor/github.com/spf13/pflag/ipnet.go generated vendored Normal file
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package pflag
import (
"fmt"
"net"
"strings"
)
// IPNet adapts net.IPNet for use as a flag.
type ipNetValue net.IPNet
func (ipnet ipNetValue) String() string {
n := net.IPNet(ipnet)
return n.String()
}
func (ipnet *ipNetValue) Set(value string) error {
_, n, err := net.ParseCIDR(strings.TrimSpace(value))
if err != nil {
return err
}
*ipnet = ipNetValue(*n)
return nil
}
func (*ipNetValue) Type() string {
return "ipNet"
}
func newIPNetValue(val net.IPNet, p *net.IPNet) *ipNetValue {
*p = val
return (*ipNetValue)(p)
}
func ipNetConv(sval string) (interface{}, error) {
_, n, err := net.ParseCIDR(strings.TrimSpace(sval))
if err == nil {
return *n, nil
}
return nil, fmt.Errorf("invalid string being converted to IPNet: %s", sval)
}
// GetIPNet return the net.IPNet value of a flag with the given name
func (f *FlagSet) GetIPNet(name string) (net.IPNet, error) {
val, err := f.getFlagType(name, "ipNet", ipNetConv)
if err != nil {
return net.IPNet{}, err
}
return val.(net.IPNet), nil
}
// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
// The argument p points to an net.IPNet variable in which to store the value of the flag.
func (f *FlagSet) IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
f.VarP(newIPNetValue(value, p), name, "", usage)
}
// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
f.VarP(newIPNetValue(value, p), name, shorthand, usage)
}
// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
// The argument p points to an net.IPNet variable in which to store the value of the flag.
func IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
CommandLine.VarP(newIPNetValue(value, p), name, "", usage)
}
// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
func IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
CommandLine.VarP(newIPNetValue(value, p), name, shorthand, usage)
}
// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
// The return value is the address of an net.IPNet variable that stores the value of the flag.
func (f *FlagSet) IPNet(name string, value net.IPNet, usage string) *net.IPNet {
p := new(net.IPNet)
f.IPNetVarP(p, name, "", value, usage)
return p
}
// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
p := new(net.IPNet)
f.IPNetVarP(p, name, shorthand, value, usage)
return p
}
// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
// The return value is the address of an net.IPNet variable that stores the value of the flag.
func IPNet(name string, value net.IPNet, usage string) *net.IPNet {
return CommandLine.IPNetP(name, "", value, usage)
}
// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
func IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
return CommandLine.IPNetP(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/string.go generated vendored Normal file
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package pflag
// -- string Value
type stringValue string
func newStringValue(val string, p *string) *stringValue {
*p = val
return (*stringValue)(p)
}
func (s *stringValue) Set(val string) error {
*s = stringValue(val)
return nil
}
func (s *stringValue) Type() string {
return "string"
}
func (s *stringValue) String() string { return string(*s) }
func stringConv(sval string) (interface{}, error) {
return sval, nil
}
// GetString return the string value of a flag with the given name
func (f *FlagSet) GetString(name string) (string, error) {
val, err := f.getFlagType(name, "string", stringConv)
if err != nil {
return "", err
}
return val.(string), nil
}
// StringVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a string variable in which to store the value of the flag.
func (f *FlagSet) StringVar(p *string, name string, value string, usage string) {
f.VarP(newStringValue(value, p), name, "", usage)
}
// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringVarP(p *string, name, shorthand string, value string, usage string) {
f.VarP(newStringValue(value, p), name, shorthand, usage)
}
// StringVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a string variable in which to store the value of the flag.
func StringVar(p *string, name string, value string, usage string) {
CommandLine.VarP(newStringValue(value, p), name, "", usage)
}
// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
func StringVarP(p *string, name, shorthand string, value string, usage string) {
CommandLine.VarP(newStringValue(value, p), name, shorthand, usage)
}
// String defines a string flag with specified name, default value, and usage string.
// The return value is the address of a string variable that stores the value of the flag.
func (f *FlagSet) String(name string, value string, usage string) *string {
p := new(string)
f.StringVarP(p, name, "", value, usage)
return p
}
// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringP(name, shorthand string, value string, usage string) *string {
p := new(string)
f.StringVarP(p, name, shorthand, value, usage)
return p
}
// String defines a string flag with specified name, default value, and usage string.
// The return value is the address of a string variable that stores the value of the flag.
func String(name string, value string, usage string) *string {
return CommandLine.StringP(name, "", value, usage)
}
// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
func StringP(name, shorthand string, value string, usage string) *string {
return CommandLine.StringP(name, shorthand, value, usage)
}

103
vendor/github.com/spf13/pflag/string_array.go generated vendored Normal file
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package pflag
// -- stringArray Value
type stringArrayValue struct {
value *[]string
changed bool
}
func newStringArrayValue(val []string, p *[]string) *stringArrayValue {
ssv := new(stringArrayValue)
ssv.value = p
*ssv.value = val
return ssv
}
func (s *stringArrayValue) Set(val string) error {
if !s.changed {
*s.value = []string{val}
s.changed = true
} else {
*s.value = append(*s.value, val)
}
return nil
}
func (s *stringArrayValue) Type() string {
return "stringArray"
}
func (s *stringArrayValue) String() string {
str, _ := writeAsCSV(*s.value)
return "[" + str + "]"
}
func stringArrayConv(sval string) (interface{}, error) {
sval = sval[1 : len(sval)-1]
// An empty string would cause a array with one (empty) string
if len(sval) == 0 {
return []string{}, nil
}
return readAsCSV(sval)
}
// GetStringArray return the []string value of a flag with the given name
func (f *FlagSet) GetStringArray(name string) ([]string, error) {
val, err := f.getFlagType(name, "stringArray", stringArrayConv)
if err != nil {
return []string{}, err
}
return val.([]string), nil
}
// StringArrayVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a []string variable in which to store the values of the multiple flags.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringArrayVar(p *[]string, name string, value []string, usage string) {
f.VarP(newStringArrayValue(value, p), name, "", usage)
}
// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
f.VarP(newStringArrayValue(value, p), name, shorthand, usage)
}
// StringArrayVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a []string variable in which to store the value of the flag.
// The value of each argument will not try to be separated by comma
func StringArrayVar(p *[]string, name string, value []string, usage string) {
CommandLine.VarP(newStringArrayValue(value, p), name, "", usage)
}
// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
func StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
CommandLine.VarP(newStringArrayValue(value, p), name, shorthand, usage)
}
// StringArray defines a string flag with specified name, default value, and usage string.
// The return value is the address of a []string variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringArray(name string, value []string, usage string) *[]string {
p := []string{}
f.StringArrayVarP(&p, name, "", value, usage)
return &p
}
// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringArrayP(name, shorthand string, value []string, usage string) *[]string {
p := []string{}
f.StringArrayVarP(&p, name, shorthand, value, usage)
return &p
}
// StringArray defines a string flag with specified name, default value, and usage string.
// The return value is the address of a []string variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func StringArray(name string, value []string, usage string) *[]string {
return CommandLine.StringArrayP(name, "", value, usage)
}
// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
func StringArrayP(name, shorthand string, value []string, usage string) *[]string {
return CommandLine.StringArrayP(name, shorthand, value, usage)
}

129
vendor/github.com/spf13/pflag/string_slice.go generated vendored Normal file
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package pflag
import (
"bytes"
"encoding/csv"
"strings"
)
// -- stringSlice Value
type stringSliceValue struct {
value *[]string
changed bool
}
func newStringSliceValue(val []string, p *[]string) *stringSliceValue {
ssv := new(stringSliceValue)
ssv.value = p
*ssv.value = val
return ssv
}
func readAsCSV(val string) ([]string, error) {
if val == "" {
return []string{}, nil
}
stringReader := strings.NewReader(val)
csvReader := csv.NewReader(stringReader)
return csvReader.Read()
}
func writeAsCSV(vals []string) (string, error) {
b := &bytes.Buffer{}
w := csv.NewWriter(b)
err := w.Write(vals)
if err != nil {
return "", err
}
w.Flush()
return strings.TrimSuffix(b.String(), "\n"), nil
}
func (s *stringSliceValue) Set(val string) error {
v, err := readAsCSV(val)
if err != nil {
return err
}
if !s.changed {
*s.value = v
} else {
*s.value = append(*s.value, v...)
}
s.changed = true
return nil
}
func (s *stringSliceValue) Type() string {
return "stringSlice"
}
func (s *stringSliceValue) String() string {
str, _ := writeAsCSV(*s.value)
return "[" + str + "]"
}
func stringSliceConv(sval string) (interface{}, error) {
sval = sval[1 : len(sval)-1]
// An empty string would cause a slice with one (empty) string
if len(sval) == 0 {
return []string{}, nil
}
return readAsCSV(sval)
}
// GetStringSlice return the []string value of a flag with the given name
func (f *FlagSet) GetStringSlice(name string) ([]string, error) {
val, err := f.getFlagType(name, "stringSlice", stringSliceConv)
if err != nil {
return []string{}, err
}
return val.([]string), nil
}
// StringSliceVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a []string variable in which to store the value of the flag.
func (f *FlagSet) StringSliceVar(p *[]string, name string, value []string, usage string) {
f.VarP(newStringSliceValue(value, p), name, "", usage)
}
// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
f.VarP(newStringSliceValue(value, p), name, shorthand, usage)
}
// StringSliceVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a []string variable in which to store the value of the flag.
func StringSliceVar(p *[]string, name string, value []string, usage string) {
CommandLine.VarP(newStringSliceValue(value, p), name, "", usage)
}
// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
func StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
CommandLine.VarP(newStringSliceValue(value, p), name, shorthand, usage)
}
// StringSlice defines a string flag with specified name, default value, and usage string.
// The return value is the address of a []string variable that stores the value of the flag.
func (f *FlagSet) StringSlice(name string, value []string, usage string) *[]string {
p := []string{}
f.StringSliceVarP(&p, name, "", value, usage)
return &p
}
// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringSliceP(name, shorthand string, value []string, usage string) *[]string {
p := []string{}
f.StringSliceVarP(&p, name, shorthand, value, usage)
return &p
}
// StringSlice defines a string flag with specified name, default value, and usage string.
// The return value is the address of a []string variable that stores the value of the flag.
func StringSlice(name string, value []string, usage string) *[]string {
return CommandLine.StringSliceP(name, "", value, usage)
}
// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
func StringSliceP(name, shorthand string, value []string, usage string) *[]string {
return CommandLine.StringSliceP(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/uint.go generated vendored Normal file
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package pflag
import "strconv"
// -- uint Value
type uintValue uint
func newUintValue(val uint, p *uint) *uintValue {
*p = val
return (*uintValue)(p)
}
func (i *uintValue) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 64)
*i = uintValue(v)
return err
}
func (i *uintValue) Type() string {
return "uint"
}
func (i *uintValue) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uintConv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 0)
if err != nil {
return 0, err
}
return uint(v), nil
}
// GetUint return the uint value of a flag with the given name
func (f *FlagSet) GetUint(name string) (uint, error) {
val, err := f.getFlagType(name, "uint", uintConv)
if err != nil {
return 0, err
}
return val.(uint), nil
}
// UintVar defines a uint flag with specified name, default value, and usage string.
// The argument p points to a uint variable in which to store the value of the flag.
func (f *FlagSet) UintVar(p *uint, name string, value uint, usage string) {
f.VarP(newUintValue(value, p), name, "", usage)
}
// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) UintVarP(p *uint, name, shorthand string, value uint, usage string) {
f.VarP(newUintValue(value, p), name, shorthand, usage)
}
// UintVar defines a uint flag with specified name, default value, and usage string.
// The argument p points to a uint variable in which to store the value of the flag.
func UintVar(p *uint, name string, value uint, usage string) {
CommandLine.VarP(newUintValue(value, p), name, "", usage)
}
// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
func UintVarP(p *uint, name, shorthand string, value uint, usage string) {
CommandLine.VarP(newUintValue(value, p), name, shorthand, usage)
}
// Uint defines a uint flag with specified name, default value, and usage string.
// The return value is the address of a uint variable that stores the value of the flag.
func (f *FlagSet) Uint(name string, value uint, usage string) *uint {
p := new(uint)
f.UintVarP(p, name, "", value, usage)
return p
}
// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) UintP(name, shorthand string, value uint, usage string) *uint {
p := new(uint)
f.UintVarP(p, name, shorthand, value, usage)
return p
}
// Uint defines a uint flag with specified name, default value, and usage string.
// The return value is the address of a uint variable that stores the value of the flag.
func Uint(name string, value uint, usage string) *uint {
return CommandLine.UintP(name, "", value, usage)
}
// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
func UintP(name, shorthand string, value uint, usage string) *uint {
return CommandLine.UintP(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/uint16.go generated vendored Normal file
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package pflag
import "strconv"
// -- uint16 value
type uint16Value uint16
func newUint16Value(val uint16, p *uint16) *uint16Value {
*p = val
return (*uint16Value)(p)
}
func (i *uint16Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 16)
*i = uint16Value(v)
return err
}
func (i *uint16Value) Type() string {
return "uint16"
}
func (i *uint16Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint16Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 16)
if err != nil {
return 0, err
}
return uint16(v), nil
}
// GetUint16 return the uint16 value of a flag with the given name
func (f *FlagSet) GetUint16(name string) (uint16, error) {
val, err := f.getFlagType(name, "uint16", uint16Conv)
if err != nil {
return 0, err
}
return val.(uint16), nil
}
// Uint16Var defines a uint flag with specified name, default value, and usage string.
// The argument p points to a uint variable in which to store the value of the flag.
func (f *FlagSet) Uint16Var(p *uint16, name string, value uint16, usage string) {
f.VarP(newUint16Value(value, p), name, "", usage)
}
// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
f.VarP(newUint16Value(value, p), name, shorthand, usage)
}
// Uint16Var defines a uint flag with specified name, default value, and usage string.
// The argument p points to a uint variable in which to store the value of the flag.
func Uint16Var(p *uint16, name string, value uint16, usage string) {
CommandLine.VarP(newUint16Value(value, p), name, "", usage)
}
// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
func Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
CommandLine.VarP(newUint16Value(value, p), name, shorthand, usage)
}
// Uint16 defines a uint flag with specified name, default value, and usage string.
// The return value is the address of a uint variable that stores the value of the flag.
func (f *FlagSet) Uint16(name string, value uint16, usage string) *uint16 {
p := new(uint16)
f.Uint16VarP(p, name, "", value, usage)
return p
}
// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
p := new(uint16)
f.Uint16VarP(p, name, shorthand, value, usage)
return p
}
// Uint16 defines a uint flag with specified name, default value, and usage string.
// The return value is the address of a uint variable that stores the value of the flag.
func Uint16(name string, value uint16, usage string) *uint16 {
return CommandLine.Uint16P(name, "", value, usage)
}
// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
func Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
return CommandLine.Uint16P(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/uint32.go generated vendored Normal file
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package pflag
import "strconv"
// -- uint32 value
type uint32Value uint32
func newUint32Value(val uint32, p *uint32) *uint32Value {
*p = val
return (*uint32Value)(p)
}
func (i *uint32Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 32)
*i = uint32Value(v)
return err
}
func (i *uint32Value) Type() string {
return "uint32"
}
func (i *uint32Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint32Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 32)
if err != nil {
return 0, err
}
return uint32(v), nil
}
// GetUint32 return the uint32 value of a flag with the given name
func (f *FlagSet) GetUint32(name string) (uint32, error) {
val, err := f.getFlagType(name, "uint32", uint32Conv)
if err != nil {
return 0, err
}
return val.(uint32), nil
}
// Uint32Var defines a uint32 flag with specified name, default value, and usage string.
// The argument p points to a uint32 variable in which to store the value of the flag.
func (f *FlagSet) Uint32Var(p *uint32, name string, value uint32, usage string) {
f.VarP(newUint32Value(value, p), name, "", usage)
}
// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
f.VarP(newUint32Value(value, p), name, shorthand, usage)
}
// Uint32Var defines a uint32 flag with specified name, default value, and usage string.
// The argument p points to a uint32 variable in which to store the value of the flag.
func Uint32Var(p *uint32, name string, value uint32, usage string) {
CommandLine.VarP(newUint32Value(value, p), name, "", usage)
}
// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
func Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
CommandLine.VarP(newUint32Value(value, p), name, shorthand, usage)
}
// Uint32 defines a uint32 flag with specified name, default value, and usage string.
// The return value is the address of a uint32 variable that stores the value of the flag.
func (f *FlagSet) Uint32(name string, value uint32, usage string) *uint32 {
p := new(uint32)
f.Uint32VarP(p, name, "", value, usage)
return p
}
// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
p := new(uint32)
f.Uint32VarP(p, name, shorthand, value, usage)
return p
}
// Uint32 defines a uint32 flag with specified name, default value, and usage string.
// The return value is the address of a uint32 variable that stores the value of the flag.
func Uint32(name string, value uint32, usage string) *uint32 {
return CommandLine.Uint32P(name, "", value, usage)
}
// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
func Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
return CommandLine.Uint32P(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/uint64.go generated vendored Normal file
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package pflag
import "strconv"
// -- uint64 Value
type uint64Value uint64
func newUint64Value(val uint64, p *uint64) *uint64Value {
*p = val
return (*uint64Value)(p)
}
func (i *uint64Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 64)
*i = uint64Value(v)
return err
}
func (i *uint64Value) Type() string {
return "uint64"
}
func (i *uint64Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint64Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 64)
if err != nil {
return 0, err
}
return uint64(v), nil
}
// GetUint64 return the uint64 value of a flag with the given name
func (f *FlagSet) GetUint64(name string) (uint64, error) {
val, err := f.getFlagType(name, "uint64", uint64Conv)
if err != nil {
return 0, err
}
return val.(uint64), nil
}
// Uint64Var defines a uint64 flag with specified name, default value, and usage string.
// The argument p points to a uint64 variable in which to store the value of the flag.
func (f *FlagSet) Uint64Var(p *uint64, name string, value uint64, usage string) {
f.VarP(newUint64Value(value, p), name, "", usage)
}
// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
f.VarP(newUint64Value(value, p), name, shorthand, usage)
}
// Uint64Var defines a uint64 flag with specified name, default value, and usage string.
// The argument p points to a uint64 variable in which to store the value of the flag.
func Uint64Var(p *uint64, name string, value uint64, usage string) {
CommandLine.VarP(newUint64Value(value, p), name, "", usage)
}
// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
func Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
CommandLine.VarP(newUint64Value(value, p), name, shorthand, usage)
}
// Uint64 defines a uint64 flag with specified name, default value, and usage string.
// The return value is the address of a uint64 variable that stores the value of the flag.
func (f *FlagSet) Uint64(name string, value uint64, usage string) *uint64 {
p := new(uint64)
f.Uint64VarP(p, name, "", value, usage)
return p
}
// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
p := new(uint64)
f.Uint64VarP(p, name, shorthand, value, usage)
return p
}
// Uint64 defines a uint64 flag with specified name, default value, and usage string.
// The return value is the address of a uint64 variable that stores the value of the flag.
func Uint64(name string, value uint64, usage string) *uint64 {
return CommandLine.Uint64P(name, "", value, usage)
}
// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
func Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
return CommandLine.Uint64P(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/uint8.go generated vendored Normal file
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package pflag
import "strconv"
// -- uint8 Value
type uint8Value uint8
func newUint8Value(val uint8, p *uint8) *uint8Value {
*p = val
return (*uint8Value)(p)
}
func (i *uint8Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 8)
*i = uint8Value(v)
return err
}
func (i *uint8Value) Type() string {
return "uint8"
}
func (i *uint8Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint8Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 8)
if err != nil {
return 0, err
}
return uint8(v), nil
}
// GetUint8 return the uint8 value of a flag with the given name
func (f *FlagSet) GetUint8(name string) (uint8, error) {
val, err := f.getFlagType(name, "uint8", uint8Conv)
if err != nil {
return 0, err
}
return val.(uint8), nil
}
// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
// The argument p points to a uint8 variable in which to store the value of the flag.
func (f *FlagSet) Uint8Var(p *uint8, name string, value uint8, usage string) {
f.VarP(newUint8Value(value, p), name, "", usage)
}
// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
f.VarP(newUint8Value(value, p), name, shorthand, usage)
}
// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
// The argument p points to a uint8 variable in which to store the value of the flag.
func Uint8Var(p *uint8, name string, value uint8, usage string) {
CommandLine.VarP(newUint8Value(value, p), name, "", usage)
}
// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
func Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
CommandLine.VarP(newUint8Value(value, p), name, shorthand, usage)
}
// Uint8 defines a uint8 flag with specified name, default value, and usage string.
// The return value is the address of a uint8 variable that stores the value of the flag.
func (f *FlagSet) Uint8(name string, value uint8, usage string) *uint8 {
p := new(uint8)
f.Uint8VarP(p, name, "", value, usage)
return p
}
// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
p := new(uint8)
f.Uint8VarP(p, name, shorthand, value, usage)
return p
}
// Uint8 defines a uint8 flag with specified name, default value, and usage string.
// The return value is the address of a uint8 variable that stores the value of the flag.
func Uint8(name string, value uint8, usage string) *uint8 {
return CommandLine.Uint8P(name, "", value, usage)
}
// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
func Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
return CommandLine.Uint8P(name, shorthand, value, usage)
}

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vendor/github.com/spf13/pflag/uint_slice.go generated vendored Normal file
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package pflag
import (
"fmt"
"strconv"
"strings"
)
// -- uintSlice Value
type uintSliceValue struct {
value *[]uint
changed bool
}
func newUintSliceValue(val []uint, p *[]uint) *uintSliceValue {
uisv := new(uintSliceValue)
uisv.value = p
*uisv.value = val
return uisv
}
func (s *uintSliceValue) Set(val string) error {
ss := strings.Split(val, ",")
out := make([]uint, len(ss))
for i, d := range ss {
u, err := strconv.ParseUint(d, 10, 0)
if err != nil {
return err
}
out[i] = uint(u)
}
if !s.changed {
*s.value = out
} else {
*s.value = append(*s.value, out...)
}
s.changed = true
return nil
}
func (s *uintSliceValue) Type() string {
return "uintSlice"
}
func (s *uintSliceValue) String() string {
out := make([]string, len(*s.value))
for i, d := range *s.value {
out[i] = fmt.Sprintf("%d", d)
}
return "[" + strings.Join(out, ",") + "]"
}
func uintSliceConv(val string) (interface{}, error) {
val = strings.Trim(val, "[]")
// Empty string would cause a slice with one (empty) entry
if len(val) == 0 {
return []uint{}, nil
}
ss := strings.Split(val, ",")
out := make([]uint, len(ss))
for i, d := range ss {
u, err := strconv.ParseUint(d, 10, 0)
if err != nil {
return nil, err
}
out[i] = uint(u)
}
return out, nil
}
// GetUintSlice returns the []uint value of a flag with the given name.
func (f *FlagSet) GetUintSlice(name string) ([]uint, error) {
val, err := f.getFlagType(name, "uintSlice", uintSliceConv)
if err != nil {
return []uint{}, err
}
return val.([]uint), nil
}
// UintSliceVar defines a uintSlice flag with specified name, default value, and usage string.
// The argument p points to a []uint variable in which to store the value of the flag.
func (f *FlagSet) UintSliceVar(p *[]uint, name string, value []uint, usage string) {
f.VarP(newUintSliceValue(value, p), name, "", usage)
}
// UintSliceVarP is like UintSliceVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) UintSliceVarP(p *[]uint, name, shorthand string, value []uint, usage string) {
f.VarP(newUintSliceValue(value, p), name, shorthand, usage)
}
// UintSliceVar defines a uint[] flag with specified name, default value, and usage string.
// The argument p points to a uint[] variable in which to store the value of the flag.
func UintSliceVar(p *[]uint, name string, value []uint, usage string) {
CommandLine.VarP(newUintSliceValue(value, p), name, "", usage)
}
// UintSliceVarP is like the UintSliceVar, but accepts a shorthand letter that can be used after a single dash.
func UintSliceVarP(p *[]uint, name, shorthand string, value []uint, usage string) {
CommandLine.VarP(newUintSliceValue(value, p), name, shorthand, usage)
}
// UintSlice defines a []uint flag with specified name, default value, and usage string.
// The return value is the address of a []uint variable that stores the value of the flag.
func (f *FlagSet) UintSlice(name string, value []uint, usage string) *[]uint {
p := []uint{}
f.UintSliceVarP(&p, name, "", value, usage)
return &p
}
// UintSliceP is like UintSlice, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) UintSliceP(name, shorthand string, value []uint, usage string) *[]uint {
p := []uint{}
f.UintSliceVarP(&p, name, shorthand, value, usage)
return &p
}
// UintSlice defines a []uint flag with specified name, default value, and usage string.
// The return value is the address of a []uint variable that stores the value of the flag.
func UintSlice(name string, value []uint, usage string) *[]uint {
return CommandLine.UintSliceP(name, "", value, usage)
}
// UintSliceP is like UintSlice, but accepts a shorthand letter that can be used after a single dash.
func UintSliceP(name, shorthand string, value []uint, usage string) *[]uint {
return CommandLine.UintSliceP(name, shorthand, value, usage)
}