Allow docker build from stdin

This commit is contained in:
Guillaume J. Charmes 2013-05-29 11:43:29 -07:00
parent 6cbc7757b2
commit 33ea1483d5

View file

@ -131,12 +131,16 @@ func (cli *DockerCli) CmdInsert(args ...string) error {
}
func (cli *DockerCli) CmdBuild(args ...string) error {
cmd := Subcmd("build", "[CONTEXT]", "Build an image from a Dockerfile")
cmd := Subcmd("build", "[CONTEXT|-]", "Build an image from a Dockerfile")
if err := cmd.Parse(args); err != nil {
return nil
}
var multipartBody io.Reader
var (
multipartBody io.Reader
file io.ReadCloser
contextPath string
)
// Init the needed component for the Multipart
buff := bytes.NewBuffer([]byte{})
@ -146,16 +150,23 @@ func (cli *DockerCli) CmdBuild(args ...string) error {
dockerfile := "Dockerfile"
if cmd.Arg(0) != "" {
if cmd.Arg(0) != "" && cmd.Arg(0) != "-" {
contextPath = cmd.Arg(0)
dockerfile = path.Join(cmd.Arg(0), dockerfile)
}
if cmd.Arg(0) != "-" {
f, err := os.Open(dockerfile)
if err != nil {
return err
}
defer f.Close()
file = f
} else {
contextPath = cmd.Arg(1)
file = os.Stdin
}
// Create a FormFile multipart for the Dockerfile
file, err := os.Open(dockerfile)
if err != nil {
return err
}
defer file.Close()
if wField, err := w.CreateFormFile("Dockerfile", "Dockerfile"); err != nil {
return err
} else {
@ -166,14 +177,14 @@ func (cli *DockerCli) CmdBuild(args ...string) error {
compression := Bzip2
// Create a FormFile multipart for the context if needed
if cmd.Arg(0) != "" {
if contextPath != "" {
// FIXME: Use NewTempArchive in order to have the size and avoid too much memory usage?
context, err := Tar(cmd.Arg(0), compression)
context, err := Tar(contextPath, compression)
if err != nil {
return err
}
// NOTE: Do this in case '.' or '..' is input
absPath, err := filepath.Abs(cmd.Arg(0))
absPath, err := filepath.Abs(contextPath)
if err != nil {
return err
}
@ -193,7 +204,7 @@ func (cli *DockerCli) CmdBuild(args ...string) error {
return err
}
req.Header.Set("Content-Type", w.FormDataContentType())
if cmd.Arg(0) != "" {
if contextPath != "" {
req.Header.Set("X-Docker-Context-Compression", compression.Flag())
fmt.Println("Uploading Context...")
}