Added basic project and Cobra CLI structure

.gitignore

@@ -0,0 +1,62 @@
+#
+# OCDEV SPECIFIC
+#
+
+# Ignore compiled files
+ocdev
+
+#
+# GO SPECIFIC
+#
+
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+#
+# VIM SPECIFIC
+#
+
+# swap
+[._]*.s[a-w][a-z]
+[._]s[a-w][a-z]
+
+# session
+Session.vim
+
+# temporary
+.netrwhist
+*~
+
+# auto-generated tag files
+tags
+
+# IntelliJ IDE specific
+.idea
+
+# VSCode specific
+.vscode

LICENSE

@@ -0,0 +1,202 @@
+
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+                        http://www.apache.org/licenses/
+
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+   limitations under the License.

Makefile

@@ -0,0 +1,28 @@
+BUILD_FLAGS := -ldflags="-w -X github.com/redhat-developer/ocdev/cmd.GITCOMMIT=$(GITCOMMIT)"
+
+default: bin
+
+.PHONY: bin
+bin:
+	go build ${BUILD_FLAGS} -o ocdev main.go
+
+.PHONY: install
+install:
+	go install ${BUILD_FLAGS}
+
+# run all validation tests
+.PHONY: validate
+validate: gofmt vet lint
+
+.PHONY: gofmt
+gofmt:
+	./scripts/check-gofmt.sh
+
+# golint errors are only recommendations
+.PHONY: lint
+lint:
+	golint $(PKGS)
+
+.PHONY: vet
+vet:
+	go vet $(PKGS)

cmd/app.go

@@ -0,0 +1,35 @@
+// Copyright © 2018 NAME HERE <EMAIL ADDRESS>
+//
+// 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.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// appCmd represents the app command
+var appCmd = &cobra.Command{
+	Use:   "app",
+	Short: "Create Application",
+	Long:  `-`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("app called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(appCmd)
+}

cmd/completion.go

@@ -0,0 +1,231 @@
+// Copyright © 2018 NAME HERE <EMAIL ADDRESS>
+//
+// 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.
+
+package cmd
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var completion = &cobra.Command{
+	Use:   "completion SHELL",
+	Short: "Output shell completion code",
+	Long: `Generates shell completion code.
+
+Auto completion supports both bash and zsh. Output is to STDOUT.
+
+source <(ocdev completion bash)
+source <(ocdev completion zsh)
+
+Will load the shell completion code.
+	`,
+
+	RunE: func(cmd *cobra.Command, args []string) error {
+
+		err := Generate(cmd, args)
+		if err != nil {
+			fmt.Printf("Error: %s", err)
+		}
+
+		return nil
+	},
+}
+
+// Generate the approriate autocompletion file
+func Generate(cmd *cobra.Command, args []string) error {
+
+	// Check the passed in arguments
+	if len(args) == 0 {
+		return fmt.Errorf("Shell not specified. ex. ocdev completion [bash|zsh]")
+	}
+	if len(args) > 1 {
+		return fmt.Errorf("Too many arguments. Expected only the shell type. ex. ocdev completion [bash|zsh]")
+	}
+	shell := args[0]
+
+	// Generate bash through cobra if selected
+	if shell == "bash" {
+		return cmd.Root().GenBashCompletion(os.Stdout)
+
+		// Generate zsh with the appropriate conversion as well as bash inclusion
+	} else if shell == "zsh" {
+		return runCompletionZsh(os.Stdout, cmd.Root())
+
+		// Else, return an error.
+	} else {
+		return fmt.Errorf("not a compatible shell, bash and zsh are only supported")
+	}
+}
+
+func init() {
+	rootCmd.AddCommand(completion)
+}
+
+/*
+	This is copied from
+	https://github.com/kubernetes/kubernetes/blob/ea18d5c32ee7c320fe96dda6b0c757476908e696/pkg/kubectl/cmd/completion.go
+	in order to generate ZSH completion support.
+*/
+func runCompletionZsh(out io.Writer, ocdev *cobra.Command) error {
+
+	zshInitialization := `
+__ocdev_bash_source() {
+	alias shopt=':'
+	alias _expand=_bash_expand
+	alias _complete=_bash_comp
+	emulate -L sh
+	setopt kshglob noshglob braceexpand
+	source "$@"
+}
+__ocdev_type() {
+	# -t is not supported by zsh
+	if [ "$1" == "-t" ]; then
+		shift
+		# fake Bash 4 to disable "complete -o nospace". Instead
+		# "compopt +-o nospace" is used in the code to toggle trailing
+		# spaces. We don't support that, but leave trailing spaces on
+		# all the time
+		if [ "$1" = "__ocdev_compopt" ]; then
+			echo builtin
+			return 0
+		fi
+	fi
+	type "$@"
+}
+__ocdev_compgen() {
+	local completions w
+	completions=( $(compgen "$@") ) || return $?
+	# filter by given word as prefix
+	while [[ "$1" = -* && "$1" != -- ]]; do
+		shift
+		shift
+	done
+	if [[ "$1" == -- ]]; then
+		shift
+	fi
+	for w in "${completions[@]}"; do
+		if [[ "${w}" = "$1"* ]]; then
+			echo "${w}"
+		fi
+	done
+}
+__ocdev_compopt() {
+	true # don't do anything. Not supported by bashcompinit in zsh
+}
+__ocdev_declare() {
+	if [ "$1" == "-F" ]; then
+		whence -w "$@"
+	else
+		builtin declare "$@"
+	fi
+}
+__ocdev_ltrim_colon_completions()
+{
+	if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
+		# Remove colon-word prefix from COMPREPLY items
+		local colon_word=${1%${1##*:}}
+		local i=${#COMPREPLY[*]}
+		while [[ $((--i)) -ge 0 ]]; do
+			COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
+		done
+	fi
+}
+__ocdev_get_comp_words_by_ref() {
+	cur="${COMP_WORDS[COMP_CWORD]}"
+	prev="${COMP_WORDS[${COMP_CWORD}-1]}"
+	words=("${COMP_WORDS[@]}")
+	cword=("${COMP_CWORD[@]}")
+}
+__ocdev_filedir() {
+	local RET OLD_IFS w qw
+	__debug "_filedir $@ cur=$cur"
+	if [[ "$1" = \~* ]]; then
+		# somehow does not work. Maybe, zsh does not call this at all
+		eval echo "$1"
+		return 0
+	fi
+	OLD_IFS="$IFS"
+	IFS=$'\n'
+	if [ "$1" = "-d" ]; then
+		shift
+		RET=( $(compgen -d) )
+	else
+		RET=( $(compgen -f) )
+	fi
+	IFS="$OLD_IFS"
+	IFS="," __debug "RET=${RET[@]} len=${#RET[@]}"
+	for w in ${RET[@]}; do
+		if [[ ! "${w}" = "${cur}"* ]]; then
+			continue
+		fi
+		if eval "[[ \"\${w}\" = *.$1 || -d \"\${w}\" ]]"; then
+			qw="$(__ocdev_quote "${w}")"
+			if [ -d "${w}" ]; then
+				COMPREPLY+=("${qw}/")
+			else
+				COMPREPLY+=("${qw}")
+			fi
+		fi
+	done
+}
+__ocdev_quote() {
+    if [[ $1 == \'* || $1 == \"* ]]; then
+        # Leave out first character
+        printf %q "${1:1}"
+    else
+    	printf %q "$1"
+    fi
+}
+autoload -U +X bashcompinit && bashcompinit
+# use word boundary patterns for BSD or GNU sed
+LWORD='[[:<:]]'
+RWORD='[[:>:]]'
+if sed --help 2>&1 | grep -q GNU; then
+	LWORD='\<'
+	RWORD='\>'
+fi
+__ocdev_convert_bash_to_zsh() {
+	sed \
+	-e 's/declare -F/whence -w/' \
+	-e 's/local \([a-zA-Z0-9_]*\)=/local \1; \1=/' \
+	-e 's/flags+=("\(--.*\)=")/flags+=("\1"); two_word_flags+=("\1")/' \
+	-e 's/must_have_one_flag+=("\(--.*\)=")/must_have_one_flag+=("\1")/' \
+	-e "s/${LWORD}_filedir${RWORD}/__ocdev_filedir/g" \
+	-e "s/${LWORD}_get_comp_words_by_ref${RWORD}/__ocdev_get_comp_words_by_ref/g" \
+	-e "s/${LWORD}__ltrim_colon_completions${RWORD}/__ocdev_ltrim_colon_completions/g" \
+	-e "s/${LWORD}compgen${RWORD}/__ocdev_compgen/g" \
+	-e "s/${LWORD}compopt${RWORD}/__ocdev_compopt/g" \
+	-e "s/${LWORD}declare${RWORD}/__ocdev_declare/g" \
+	-e "s/\\\$(type${RWORD}/\$(__ocdev_type/g" \
+	<<'BASH_COMPLETION_EOF'
+`
+	out.Write([]byte(zshInitialization))
+
+	buf := new(bytes.Buffer)
+	ocdev.GenBashCompletion(buf)
+	out.Write(buf.Bytes())
+
+	zshTail := `
+BASH_COMPLETION_EOF
+}
+__ocdev_bash_source <(__ocdev_convert_bash_to_zsh)
+`
+	out.Write([]byte(zshTail))
+	return nil
+}

cmd/component.go

@@ -0,0 +1,35 @@
+// Copyright © 2018 NAME HERE <EMAIL ADDRESS>
+//
+// 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.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// componentCmd represents the component command
+var componentCmd = &cobra.Command{
+	Use:   "component",
+	Short: "components of application",
+	Long:  `-`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("component called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(componentCmd)
+}

cmd/root.go

@@ -0,0 +1,62 @@
+// Copyright © 2018 NAME HERE <EMAIL ADDRESS>
+//
+// 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.
+
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+// Global variables
+var (
+	GlobalVerbose bool
+)
+
+// rootCmd represents the base command when called without any subcommands
+var rootCmd = &cobra.Command{
+	Use:   "ocdev",
+	Short: "OpenShift CLI for Developers",
+	Long:  `-`,
+	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+
+		// Add extra logging when verbosity is passed
+		if GlobalVerbose {
+			//TODO
+			//log.SetLevel(log.DebugLevel)
+		}
+
+	},
+}
+
+// Execute adds all child commands to the root command and sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
+func Execute() {
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}
+
+func init() {
+	// Here you will define your flags and configuration settings.
+	// Cobra supports persistent flags, which, if defined here,
+	// will be global for your application.
+	// rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.ocdev.yaml)")
+
+	rootCmd.PersistentFlags().BoolVarP(&GlobalVerbose, "verbose", "v", false, "verbose output")
+
+}

cmd/version.go

@@ -0,0 +1,44 @@
+// Copyright © 2018 NAME HERE <EMAIL ADDRESS>
+//
+// 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.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	// VERSION  is version number that will be displayed when running ./ocdev version
+	VERSION = "0.0.0"
+
+	// GITCOMMIT is hash of the commit that wil be displayed when running ./ocdev version
+	// this will be overwritten when running  build like this: go build -ldflags="-X github.com/redhat-developer/ocdev/cmd.GITCOMMIT=$(GITCOMMIT)"
+	// HEAD is default indicating that this was not set during build
+	GITCOMMIT = "HEAD"
+)
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the version of ocdev",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println(VERSION + " (" + GITCOMMIT + ")")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}

main.go

@@ -0,0 +1,21 @@
+// Copyright © 2018 NAME HERE <EMAIL ADDRESS>
+//
+// 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.
+
+package main
+
+import "github.com/redhat-developer/ocdev/cmd"
+
+func main() {
+	cmd.Execute()
+}

scripts/check-gofmt.sh

@@ -0,0 +1,19 @@
+GO_FILES=$(find . -path ./vendor -prune -o -name '*.go' -print )
+
+for file in $GO_FILES; do
+	gofmtOutput=$(gofmt -l "$file")
+	if [ "$gofmtOutput" ]; then
+		errors+=("$gofmtOutput")
+	fi
+done
+
+
+if [ ${#errors[@]} -eq 0 ]; then
+	echo "gofmt OK"
+else
+	echo "gofmt ERROR - These files are not formated by gofmt:"
+	for err in "${errors[@]}"; do
+		echo "$err"
+	done
+	exit 1
+fi