diff options
Diffstat (limited to 'pkg/domain/infra/abi')
| -rw-r--r-- | pkg/domain/infra/abi/images.go | 109 |
1 files changed, 46 insertions, 63 deletions
diff --git a/pkg/domain/infra/abi/images.go b/pkg/domain/infra/abi/images.go index 0af06fb89..7ab5131f0 100644 --- a/pkg/domain/infra/abi/images.go +++ b/pkg/domain/infra/abi/images.go @@ -21,7 +21,6 @@ import ( domainUtils "github.com/containers/libpod/pkg/domain/utils" "github.com/containers/libpod/pkg/util" "github.com/containers/storage" - "github.com/hashicorp/go-multierror" imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" "github.com/sirupsen/logrus" @@ -423,8 +422,10 @@ func (ir *ImageEngine) Tree(ctx context.Context, nameOrId string, opts entities. return &entities.ImageTreeReport{Tree: results}, nil } -// Remove removes one or more images from local storage. -func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entities.ImageRemoveOptions) (report *entities.ImageRemoveReport, finalError error) { +// removeErrorsToExitCode returns an exit code for the specified slice of +// image-removal errors. The error codes are set according to the documented +// behaviour in the Podman man pages. +func removeErrorsToExitCode(rmErrors []error) int { var ( // noSuchImageErrors indicates that at least one image was not found. noSuchImageErrors bool @@ -434,59 +435,53 @@ func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entitie // otherErrors indicates that at least one error other than the two // above occured. otherErrors bool - // deleteError is a multierror to conveniently collect errors during - // removal. We really want to delete as many images as possible and not - // error out immediately. - deleteError *multierror.Error ) - report = &entities.ImageRemoveReport{} + if len(rmErrors) == 0 { + return 0 + } - // Set the removalCode and the error after all work is done. - defer func() { - switch { - // 2 - case inUseErrors: - // One of the specified images has child images or is - // being used by a container. - report.ExitCode = 2 - // 1 - case noSuchImageErrors && !(otherErrors || inUseErrors): - // One of the specified images did not exist, and no other - // failures. - report.ExitCode = 1 - // 0 + for _, e := range rmErrors { + switch errors.Cause(e) { + case define.ErrNoSuchImage: + noSuchImageErrors = true + case define.ErrImageInUse, storage.ErrImageUsedByContainer: + inUseErrors = true default: - // Nothing to do. - } - if deleteError != nil { - // go-multierror has a trailing new line which we need to remove to normalize the string. - finalError = deleteError.ErrorOrNil() - finalError = errors.New(strings.TrimSpace(finalError.Error())) + otherErrors = true } + } + + switch { + case inUseErrors: + // One of the specified images has child images or is + // being used by a container. + return 2 + case noSuchImageErrors && !(otherErrors || inUseErrors): + // One of the specified images did not exist, and no other + // failures. + return 1 + default: + return 125 + } +} + +// Remove removes one or more images from local storage. +func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entities.ImageRemoveOptions) (report *entities.ImageRemoveReport, rmErrors []error) { + report = &entities.ImageRemoveReport{} + + // Set the exit code at very end. + defer func() { + report.ExitCode = removeErrorsToExitCode(rmErrors) }() // deleteImage is an anonymous function to conveniently delete an image // without having to pass all local data around. deleteImage := func(img *image.Image) error { results, err := ir.Libpod.RemoveImage(ctx, img, opts.Force) - switch errors.Cause(err) { - case nil: - break - case define.ErrNoSuchImage: - inUseErrors = true // ExitCode is expected - case storage.ErrImageUsedByContainer: - inUseErrors = true // Important for exit codes in Podman. - return errors.New( - fmt.Sprintf("A container associated with containers/storage, i.e. via Buildah, CRI-O, etc., may be associated with this image: %-12.12s\n", img.ID())) - case define.ErrImageInUse: - inUseErrors = true - return err - default: - otherErrors = true // Important for exit codes in Podman. + if err != nil { return err } - report.Deleted = append(report.Deleted, results.Deleted) report.Untagged = append(report.Untagged, results.Untagged...) return nil @@ -499,9 +494,7 @@ func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entitie for { storageImages, err := ir.Libpod.ImageRuntime().GetRWImages() if err != nil { - deleteError = multierror.Append(deleteError, - errors.Wrapf(err, "unable to query local images")) - otherErrors = true // Important for exit codes in Podman. + rmErrors = append(rmErrors, err) return } // No images (left) to remove, so we're done. @@ -510,9 +503,7 @@ func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entitie } // Prevent infinity loops by making a delete-progress check. if previousImages == len(storageImages) { - otherErrors = true // Important for exit codes in Podman. - deleteError = multierror.Append(deleteError, - errors.New("unable to delete all images, check errors and re-run image removal if needed")) + rmErrors = append(rmErrors, errors.New("unable to delete all images, check errors and re-run image removal if needed")) break } previousImages = len(storageImages) @@ -520,15 +511,15 @@ func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entitie for _, img := range storageImages { isParent, err := img.IsParent(ctx) if err != nil { - otherErrors = true // Important for exit codes in Podman. - deleteError = multierror.Append(deleteError, err) + rmErrors = append(rmErrors, err) + continue } // Skip parent images. if isParent { continue } if err := deleteImage(img); err != nil { - deleteError = multierror.Append(deleteError, err) + rmErrors = append(rmErrors, err) } } } @@ -539,21 +530,13 @@ func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entitie // Delete only the specified images. for _, id := range images { img, err := ir.Libpod.ImageRuntime().NewFromLocal(id) - switch errors.Cause(err) { - case nil: - break - case image.ErrNoSuchImage: - noSuchImageErrors = true // Important for exit codes in Podman. - fallthrough - default: - deleteError = multierror.Append(deleteError, errors.Wrapf(err, "failed to remove image '%s'", id)) + if err != nil { + rmErrors = append(rmErrors, err) continue } - err = deleteImage(img) if err != nil { - otherErrors = true // Important for exit codes in Podman. - deleteError = multierror.Append(deleteError, err) + rmErrors = append(rmErrors, err) } } |