Move tag mechanism out of internal

pkg/imgpkg/cmd/copy.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 
 	"carvel.dev/imgpkg/pkg/imgpkg/bundle"
+	"carvel.dev/imgpkg/pkg/imgpkg/image"
 	ctlimgset "carvel.dev/imgpkg/pkg/imgpkg/imageset"
 	"carvel.dev/imgpkg/pkg/imgpkg/internal/util"
 	"carvel.dev/imgpkg/pkg/imgpkg/lockconfig"
@@ -106,10 +107,10 @@ func (c *CopyOptions) Run() error {
 	levelLogger := util.NewUILevelLogger(util.LogWarn, prefixedLogger)
 	imagesUploaderLogger := util.NewProgressBar(levelLogger, "done uploading images", "Error uploading images")
 
-	var tagGen util.TagGenerator
-	tagGen = util.DefaultTagGenerator{}
+	var tagGen ctlimgset.TagGenerator
+	tagGen = image.DefaultTagGenerator{}
 	if c.UseRepoBasedTags {
-		tagGen = util.RepoBasedTagGenerator{}
+		tagGen = image.RepoBasedTagGenerator{}
 	}
 
 	imageSet := ctlimgset.NewImageSet(c.Concurrency, prefixedLogger, tagGen)

pkg/imgpkg/internal/util/repo_based_tag_generator_test.go → pkg/imgpkg/image/repo_based_tag_generator_test.go

@@ -1,13 +1,13 @@
 // Copyright 2024 The Carvel Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package util_test
+package image_test
 
 import (
 	"testing"
 
+	"carvel.dev/imgpkg/pkg/imgpkg/image"
 	"carvel.dev/imgpkg/pkg/imgpkg/imagedigest"
-	util "carvel.dev/imgpkg/pkg/imgpkg/internal/util"
 	regname "github.com/google/go-containerregistry/pkg/name"
 	"github.com/stretchr/testify/require"
 )
@@ -89,7 +89,7 @@ func TestGenerateTagRepobasedgenerator(t *testing.T) {
 			digestWrap.DigestWrap(imgIdxRef, test.origRef)
 			importRepo, err := regname.NewRepository("import-registry/dst-repo")
 			require.NoError(t, err)
-			tagGen := util.RepoBasedTagGenerator{}
+			tagGen := image.RepoBasedTagGenerator{}
 			tag, err := tagGen.GenerateTag(digestWrap, importRepo)
 			require.NoError(t, err)
 			require.Equal(t, test.expectedTag, tag.TagStr())

pkg/imgpkg/internal/util/tag.go → pkg/imgpkg/image/tag.go

@@ -1,7 +1,7 @@
 // Copyright 2024 The Carvel Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package util
+package image
 
 import (
 	"fmt"
@@ -32,11 +32,6 @@ func (t TagGenDigest) Digest() (regv1.Hash, error) {
 	}, nil
 }
 
-// TagGenerator interface
-type TagGenerator interface {
-	GenerateTag(item imagedigest.DigestWrap, destinationRepo regname.Repository) (regname.Tag, error)
-}
-
 // DefaultTagGenerator implements GenerateTag
 // and generates default tag
 type DefaultTagGenerator struct{}

pkg/imgpkg/imageset/image_set.go

@@ -20,14 +20,19 @@ type Logger interface {
 	Logf(str string, args ...interface{})
 }
 
+// TagGenerator interface
+type TagGenerator interface {
+	GenerateTag(item imagedigest.DigestWrap, destinationRepo regname.Repository) (regname.Tag, error)
+}
+
 type ImageSet struct {
 	concurrency int
 	logger      Logger
-	tagGen      util.TagGenerator
+	tagGen      TagGenerator
 }
 
 // NewImageSet constructor for creating an ImageSet
-func NewImageSet(concurrency int, logger Logger, tagGen util.TagGenerator) ImageSet {
+func NewImageSet(concurrency int, logger Logger, tagGen TagGenerator) ImageSet {
 	return ImageSet{concurrency, logger, tagGen}
 }
 

pkg/imgpkg/plainimage/contents.go

@@ -10,7 +10,6 @@ import (
 	"strings"
 
 	ctlimg "carvel.dev/imgpkg/pkg/imgpkg/image"
-	"carvel.dev/imgpkg/pkg/imgpkg/internal/util"
 	regname "github.com/google/go-containerregistry/pkg/name"
 	regv1 "github.com/google/go-containerregistry/pkg/v1"
 	regremote "github.com/google/go-containerregistry/pkg/v1/remote"
@@ -61,7 +60,7 @@ func (i Contents) Push(uploadRef regname.Tag, labels map[string]string, writer I
 		return "", err
 	}
 
-	uploadTagRef, err := util.BuildDefaultUploadTagRef(img, uploadRef.Repository)
+	uploadTagRef, err := ctlimg.BuildDefaultUploadTagRef(img, uploadRef.Repository)
 	if err != nil {
 		return "", fmt.Errorf("Building default upload tag image ref: %s", err)
 	}

pkg/imgpkg/v1/copy_test.go

@@ -38,7 +38,7 @@ var stdOut *bytes.Buffer
 func testSetup(registryBuild *helpers.FakeTestRegistryBuilder, imageName string, bundleName string, tarPath string, lockfilePath string) (v1.CopyOrigin, v1.CopyOpts, registry.Registry) {
 	stdOut = bytes.NewBufferString("")
 	uiLogger := util.NewUILevelLogger(util.LogWarn, util.NewBufferLogger(stdOut))
-	tagGen := util.DefaultTagGenerator{}
+	tagGen := ctlimg.DefaultTagGenerator{}
 	imageSet := imageset.NewImageSet(1, uiLogger, tagGen)
 
 	opts := v1.CopyOpts{