fix: setup global config in init docker command (#1800)

Fixes #1795

Author: JoeWang1127

internal/librarian/release_init.go

@@ -120,11 +120,12 @@ func (r *initRunner) runInitCommand(ctx context.Context, outputDir string) error
 	}
 
 	initRequest := &docker.ReleaseInitRequest{
-		Cfg:            r.cfg,
-		State:          r.state,
-		LibraryID:      r.cfg.Library,
-		LibraryVersion: r.cfg.LibraryVersion,
-		Output:         outputDir,
+		Cfg:             r.cfg,
+		State:           r.state,
+		LibrarianConfig: r.librarianConfig,
+		LibraryID:       r.cfg.Library,
+		LibraryVersion:  r.cfg.LibraryVersion,
+		Output:          outputDir,
 	}
 
 	if err := r.containerClient.ReleaseInit(ctx, initRequest); err != nil {
@@ -220,6 +221,10 @@ func getChangeType(commit *conventionalcommits.ConventionalCommit) string {
 // cleanAndCopyGlobalAllowlist cleans the files listed in global allowlist in
 // repoDir, excluding read-only files and copies global files from outputDir.
 func cleanAndCopyGlobalAllowlist(cfg *config.LibrarianConfig, repoDir, outputDir string) error {
+	if cfg == nil {
+		slog.Info("librarian config is not setup, skip copying global allowlist")
+		return nil
+	}
 	for _, globalFile := range cfg.GlobalFilesAllowlist {
 		if globalFile.Permissions == config.PermissionReadOnly {
 			continue

internal/librarian/release_init_test.go

@@ -123,6 +123,42 @@ func TestInitRun(t *testing.T) {
 				"dir2/file3.txt": "",
 			},
 		},
+		{
+			name: "run release init command without librarian config",
+			runner: &initRunner{
+				workRoot:        filepath.Join(t.TempDir(), "work-root"),
+				containerClient: &mockContainerClient{},
+				cfg: &config.Config{
+					Library: "example-id",
+				},
+				state: &config.LibrarianState{
+					Libraries: []*config.LibraryState{
+						{
+							ID: "another-example-id",
+							SourceRoots: []string{
+								"dir3",
+								"dir4",
+							},
+						},
+						{
+							ID: "example-id",
+							SourceRoots: []string{
+								"dir1",
+								"dir2",
+							},
+						},
+					},
+				},
+				repo: &MockRepository{
+					Dir: filepath.Join(t.TempDir(), "repo"),
+				},
+			},
+			files: map[string]string{
+				"file1.txt":      "",
+				"dir1/file2.txt": "",
+				"dir2/file3.txt": "",
+			},
+		},
 		{
 			name: "run release init command for all libraries",
 			runner: &initRunner{