diff options
| -rw-r--r-- | cmd/podman/images.go | 16 | ||||
| -rw-r--r-- | test/e2e/images_test.go | 7 |
2 files changed, 14 insertions, 9 deletions
diff --git a/cmd/podman/images.go b/cmd/podman/images.go index fe7c89b5c..e363fa3bb 100644 --- a/cmd/podman/images.go +++ b/cmd/podman/images.go @@ -216,17 +216,18 @@ func (i imagesOptions) setOutputFormat() string { } // imagesToGeneric creates an empty array of interfaces for output -func imagesToGeneric(templParams []imagesTemplateParams, JSONParams []imagesJSONParams) (genericParams []interface{}) { +func imagesToGeneric(templParams []imagesTemplateParams, JSONParams []imagesJSONParams) []interface{} { + genericParams := []interface{}{} if len(templParams) > 0 { for _, v := range templParams { genericParams = append(genericParams, interface{}(v)) } - return + return genericParams } for _, v := range JSONParams { genericParams = append(genericParams, interface{}(v)) } - return + return genericParams } func sortImagesOutput(sortBy string, imagesOutput imagesSorted) imagesSorted { @@ -309,7 +310,8 @@ func getImagesTemplateOutput(ctx context.Context, images []*adapter.ContainerIma } // getImagesJSONOutput returns the images information in its raw form -func getImagesJSONOutput(ctx context.Context, images []*adapter.ContainerImage) (imagesOutput []imagesJSONParams) { +func getImagesJSONOutput(ctx context.Context, images []*adapter.ContainerImage) []imagesJSONParams { + imagesOutput := []imagesJSONParams{} for _, img := range images { size, err := img.Size(ctx) if err != nil { @@ -325,7 +327,7 @@ func getImagesJSONOutput(ctx context.Context, images []*adapter.ContainerImage) } imagesOutput = append(imagesOutput, params) } - return + return imagesOutput } // generateImagesOutput generates the images based on the format provided @@ -336,10 +338,6 @@ func generateImagesOutput(ctx context.Context, images []*adapter.ContainerImage, switch opts.format { case formats.JSONString: - // If 0 images are present, print nothing for JSON - if len(images) == 0 { - return nil - } imagesOutput := getImagesJSONOutput(ctx, images) out = formats.JSONStructArray{Output: imagesToGeneric([]imagesTemplateParams{}, imagesOutput)} default: diff --git a/test/e2e/images_test.go b/test/e2e/images_test.go index 8203e4273..e125c62b4 100644 --- a/test/e2e/images_test.go +++ b/test/e2e/images_test.go @@ -101,6 +101,13 @@ var _ = Describe("Podman images", func() { Expect(session.LineInOuputStartsWith("docker.io/library/busybox")).To(BeTrue()) }) + It("podman empty images list in JSON format", func() { + session := podmanTest.Podman([]string{"images", "--format=json", "not-existing-image"}) + session.WaitWithDefaultTimeout() + Expect(session.ExitCode()).To(Equal(0)) + Expect(session.IsJSONOutputValid()).To(BeTrue()) + }) + It("podman images in JSON format", func() { session := podmanTest.Podman([]string{"images", "--format=json"}) session.WaitWithDefaultTimeout() |