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|
package main
import (
"fmt"
"os"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/libpod/image"
"github.com/containers/storage"
"github.com/pkg/errors"
"github.com/urfave/cli"
)
var (
rmiDescription = "Removes one or more locally stored images."
rmiFlags = []cli.Flag{
cli.BoolFlag{
Name: "all, a",
Usage: "remove all images",
},
cli.BoolFlag{
Name: "force, f",
Usage: "force removal of the image",
},
}
rmiCommand = cli.Command{
Name: "rmi",
Usage: "Removes one or more images from local storage",
Description: rmiDescription,
Action: rmiCmd,
ArgsUsage: "IMAGE-NAME-OR-ID [...]",
Flags: sortFlags(rmiFlags),
UseShortOptionHandling: true,
OnUsageError: usageErrorHandler,
}
rmImageCommand = cli.Command{
Name: "rm",
Usage: "removes one or more images from local storage",
Description: rmiDescription,
Action: rmiCmd,
ArgsUsage: "IMAGE-NAME-OR-ID [...]",
Flags: rmiFlags,
UseShortOptionHandling: true,
OnUsageError: usageErrorHandler,
}
)
func rmiCmd(c *cli.Context) error {
ctx := getContext()
if err := validateFlags(c, rmiFlags); err != nil {
return err
}
removeAll := c.Bool("all")
runtime, err := libpodruntime.GetRuntime(c)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
args := c.Args()
if len(args) == 0 && !removeAll {
return errors.Errorf("image name or ID must be specified")
}
if len(args) > 0 && removeAll {
return errors.Errorf("when using the --all switch, you may not pass any images names or IDs")
}
images := args[:]
var lastError error
var deleted bool
removeImage := func(img *image.Image) {
deleted = true
msg, err := runtime.RemoveImage(ctx, img, c.Bool("force"))
if err != nil {
if errors.Cause(err) == storage.ErrImageUsedByContainer {
fmt.Printf("A container associated with containers/storage, i.e. via Buildah, CRI-O, etc., may be associated with this image: %-12.12s\n", img.ID())
}
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = err
} else {
fmt.Println(msg)
}
}
if removeAll {
var imagesToDelete []*image.Image
imagesToDelete, err = runtime.ImageRuntime().GetImages()
if err != nil {
return errors.Wrapf(err, "unable to query local images")
}
for _, i := range imagesToDelete {
removeImage(i)
}
} else {
// Create image.image objects for deletion from user input.
// Note that we have to query the storage one-by-one to
// always get the latest state for each image. Otherwise, we
// run inconsistency issues, for instance, with repoTags.
// See https://github.com/containers/libpod/issues/930 as
// an exemplary inconsistency issue.
for _, i := range images {
newImage, err := runtime.ImageRuntime().NewFromLocal(i)
if err != nil {
fmt.Fprintln(os.Stderr, err)
continue
}
removeImage(newImage)
}
}
// If the user calls remove all and there are none, it should not be a
// non-zero exit
if !deleted && removeAll {
return nil
}
// the user tries to remove images that do not exist, that should be a
// non-zero exit
if !deleted {
return errors.Errorf("no valid images to delete")
}
return lastError
}
|
