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Clean up dockerfile orphans

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This commit is contained in:
Jan Grant
2017-07-20 09:03:27 -07:00
committed by Travis Reeder
parent 0879fce4ce
commit 7e9fabd7b0
1 changed files with 39 additions and 19 deletions
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58
fn/common.go
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@@ -6,8 +6,10 @@ import (
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"os/signal"
"path/filepath"
"strings"
"unicode"
@@ -91,11 +93,11 @@ func dockerbuild(verbwriter io.Writer, path string, ff *funcfile) error {
if helper == nil {
return fmt.Errorf("Cannot build, no language helper found for %v", *ff.Runtime)
}
err := writeTmpDockerfile(helper, dir, ff)
defer os.Remove(filepath.Join(dir, "Dockerfile"))
dockerfile, err = writeTmpDockerfile(helper, dir, ff)
if err != nil {
return err
}
defer os.Remove(dockerfile)
if helper.HasPreBuild() {
err := helper.PreBuild()
if err != nil {
@@ -105,18 +107,36 @@ func dockerbuild(verbwriter io.Writer, path string, ff *funcfile) error {
}
fmt.Printf("Building image %v\n", ff.FullName())
cmd := exec.Command("docker", "build",
"-t", ff.FullName(),
// "--no-cache",
"--build-arg", "HTTP_PROXY",
"--build-arg", "HTTPS_PROXY",
".")
cmd.Dir = dir
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
if err := cmd.Run(); err != nil {
return fmt.Errorf("error running docker build: %v", err)
cancel := make(chan os.Signal, 3)
signal.Notify(cancel, os.Interrupt) // and others perhaps
defer signal.Stop(cancel)
result := make(chan error, 1)
go func(done chan<- error) {
cmd := exec.Command("docker", "build",
"-t", ff.FullName(),
"-f", dockerfile,
// "--no-cache",
"--build-arg", "HTTP_PROXY",
"--build-arg", "HTTPS_PROXY",
".")
cmd.Dir = dir
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
done <- cmd.Run()
}(result)
select {
case err := <-result:
if err != nil {
return fmt.Errorf("error running docker build: %v", err)
}
case signal := <-cancel:
return fmt.Errorf("build cancelled on signal %v", signal)
}
if helper != nil {
err := helper.AfterBuild()
if err != nil {
@@ -157,14 +177,14 @@ func exists(name string) bool {
return true
}
func writeTmpDockerfile(helper langs.LangHelper, dir string, ff *funcfile) error {
func writeTmpDockerfile(helper langs.LangHelper, dir string, ff *funcfile) (string, error) {
if ff.Entrypoint == "" && ff.Cmd == "" {
return errors.New("entrypoint and cmd are missing, you must provide one or the other")
return "", errors.New("entrypoint and cmd are missing, you must provide one or the other")
}
fd, err := os.Create(filepath.Join(dir, "Dockerfile"))
fd, err := ioutil.TempFile(dir, "Dockerfile")
if err != nil {
return err
return "", err
}
defer fd.Close()
@@ -192,9 +212,9 @@ func writeTmpDockerfile(helper langs.LangHelper, dir string, ff *funcfile) error
}
err = writeLines(fd, dfLines)
if err != nil {
return err
return "", err
}
return err
return fd.Name(), err
}
func writeLines(w io.Writer, lines []string) error {