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'docker history': show the history of an image

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This commit is contained in:
Solomon Hykes 2013-03-21 21:42:18 -07:00
parent 05ae69a6eb
commit 1ad69ad415
1 changed files with 22 additions and 0 deletions
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22
commands.go
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@ -35,6 +35,7 @@ func (srv *Server) Help() string {
{"import", "Create a new filesystem image from the contents of a tarball"},
{"attach", "Attach to a running container"},
{"commit", "Create a new image from a container's changes"},
{"history", "Show the history of an image"},
{"diff", "Inspect changes on a container's filesystem"},
{"images", "List images"},
{"info", "Display system-wide information"},
@ -319,6 +320,27 @@ func (srv *Server) CmdRmi(stdin io.ReadCloser, stdout io.Writer, args ...string)
return nil
}
func (srv *Server) CmdHistory(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "history", "[OPTIONS] IMAGE", "Show the history of an image")
if cmd.Parse(args) != nil || cmd.NArg() != 1 {
cmd.Usage()
return nil
}
image, err := srv.runtime.LookupImage(cmd.Arg(0))
if err != nil {
return err
}
var child *Image
return image.WalkHistory(func(img *Image) {
if child == nil {
fmt.Fprintf(stdout, " %s\n", img.Id)
} else {
fmt.Fprintf(stdout, " = %s + %s\n", img.Id, strings.Join(child.ParentCommand, " "))
}
child = img
})
}
func (srv *Server) CmdRm(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "rm", "[OPTIONS] CONTAINER", "Remove a container")
if err := cmd.Parse(args); err != nil {