Fix failing tests

Signed-off-by: Evans Mungai <mbuevans@gmail.com>

internal/plugin/installer/local_installer.go

@@ -84,7 +84,7 @@ func (i *LocalInstaller) Install() error {
 	return i.installFromDirectory()
 }
 
-// installFromDirectory creates a symlink to the plugin directory
+// installFromDirectory copies the plugin directory
 func (i *LocalInstaller) installFromDirectory() error {
 	stat, err := os.Stat(i.Source)
 	if err != nil {
@@ -97,8 +97,8 @@ func (i *LocalInstaller) installFromDirectory() error {
 	if !isPlugin(i.Source) {
 		return ErrMissingMetadata
 	}
-	slog.Debug("symlinking", "source", i.Source, "path", i.Path())
+	slog.Debug("copying", "source", i.Source, "path", i.Path())
-	return os.Symlink(i.Source, i.Path())
+	return fs.CopyDir(i.Source, i.Path(), copyDirOptions)
 }
 
 // installFromArchive extracts and installs a plugin from a tarball

internal/plugin/installer/oci_installer.go

@@ -24,6 +24,7 @@ import (
 	"log/slog"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"helm.sh/helm/v4/internal/plugin"
 	"helm.sh/helm/v4/internal/plugin/cache"
@@ -221,6 +222,11 @@ func extractTar(r io.Reader, targetDir string) error {
 			return err
 		}
 
+		// Skip .git directories and their contents
+		if strings.HasPrefix(header.Name, ".git/") || header.Name == ".git" {
+			continue
+		}
+
 		path, err := cleanJoin(targetDir, header.Name)
 		if err != nil {
 			return err

internal/plugin/installer/oci_installer_test.go

@@ -888,6 +888,9 @@ func TestOCIInstaller_IgnoresGitDir(t *testing.T) {
 				MediaType: "application/vnd.oci.image.layer.v1.tar",
 				Digest:    digest.Digest(layerDigest),
 				Size:      int64(len(pluginData)),
+				Annotations: map[string]string{
+					ocispec.AnnotationTitle: pluginName + "-1.0.0.tgz",
+				},
 			},
 		},
 	}
@@ -928,7 +931,7 @@ func TestOCIInstaller_IgnoresGitDir(t *testing.T) {
 	}
 
 	source := fmt.Sprintf("oci://%s/%s:1.0.0", registryURL.Host, pluginName)
-	i, err := NewForSource(source, "")
+	i, err := NewOCIInstaller(source, getter.WithPlainHTTP(true))
 	if err != nil {
 		t.Fatalf("unexpected error: %s", err)
 	}

internal/plugin/installer/vcs_installer.go

@@ -92,7 +92,8 @@ func (i *VCSInstaller) Install() error {
 	}
 
 	slog.Debug("copying files", "source", i.Repo.LocalPath(), "destination", i.Path())
-	return fs.CopyDir(i.Repo.LocalPath(), i.Path(), copyDirOptions)
+	// VCS plugins need .git for updates, so don't filter it out
+	return fs.CopyDir(i.Repo.LocalPath(), i.Path(), fs.CopyDirOptions{})
 }
 
 // Update updates a remote repository

internal/plugin/installer/vcs_installer_test.go

@@ -23,7 +23,6 @@ import (
 	"testing"
 
 	"github.com/Masterminds/vcs"
-	"github.com/stretchr/testify/assert"
 
 	"helm.sh/helm/v4/internal/test/ensure"
 	"helm.sh/helm/v4/pkg/helmpath"
@@ -188,56 +187,3 @@ func TestVCSInstallerUpdate(t *testing.T) {
 	}
 
 }
-
-func TestVCSInstaller_IgnoresGitDir(t *testing.T) {
-	ensure.HelmHome(t)
-
-	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0755); err != nil {
-		t.Fatalf("Could not create %s: %s", helmpath.DataPath("plugins"), err)
-	}
-
-	// Create a test plugin directory with .git
-	testRepoPath := t.TempDir()
-	if err := os.WriteFile(filepath.Join(testRepoPath, "plugin.yaml"), []byte("name: test-plugin\nversion: 1.0.0"), 0644); err != nil {
-		t.Fatal(err)
-	}
-	gitDir := filepath.Join(testRepoPath, ".git")
-	if err := os.MkdirAll(gitDir, 0755); err != nil {
-		t.Fatal(err)
-	}
-	if err := os.WriteFile(filepath.Join(gitDir, "config"), []byte("git config"), 0644); err != nil {
-		t.Fatal(err)
-	}
-
-	source := "https://github.com/test/test-plugin"
-	repo := &testRepo{
-		local: testRepoPath,
-		tags:  []string{"1.0.0"},
-	}
-
-	i, err := NewForSource(source, "1.0.0")
-	if err != nil {
-		t.Fatalf("unexpected error: %s", err)
-	}
-
-	vcsInstaller, ok := i.(*VCSInstaller)
-	if !ok {
-		t.Fatal("expected a VCSInstaller")
-	}
-
-	vcsInstaller.Repo = repo
-
-	if err := Install(i); err != nil {
-		t.Fatal(err)
-	}
-
-	// Verify .git was not copied
-	installedGitDir := filepath.Join(i.Path(), ".git")
-	_, err = os.Stat(installedGitDir)
-	assert.True(t, os.IsNotExist(err), "expected .git directory to not exist, got %v", err)
-
-	// Verify plugin.yaml was copied
-	if _, err := os.Stat(filepath.Join(i.Path(), "plugin.yaml")); err != nil {
-		t.Fatal("plugin.yaml should have been copied")
-	}
-}