feat(internal/docker): mount repo volume in configure command (#2013)

Fixes #1766

Author: JoeWang1127

internal/docker/docker.go

@@ -233,13 +233,15 @@ func (c *Docker) Configure(ctx context.Context, request *ConfigureRequest) (stri
 	commandArgs := []string{
 		"--librarian=/librarian",
 		"--input=/input",
+		"--repo=/repo",
 		"--source=/source",
 	}
 	generatorInput := filepath.Join(request.RepoDir, config.GeneratorInputDir)
 	librarianDir := filepath.Join(request.RepoDir, config.LibrarianDir)
 	mounts := []string{
 		fmt.Sprintf("%s:/librarian", librarianDir),
 		fmt.Sprintf("%s:/input", generatorInput),
+		fmt.Sprintf("%s:/repo", request.RepoDir),
 		fmt.Sprintf("%s:/source:ro", request.ApiRoot), // readonly volume
 	}
 

internal/docker/docker_test.go

@@ -263,11 +263,13 @@ func TestDockerRun(t *testing.T) {
 				"run", "--rm",
 				"-v", fmt.Sprintf("%s/.librarian:/librarian", repoDir),
 				"-v", fmt.Sprintf("%s/.librarian/generator-input:/input", repoDir),
+				"-v", fmt.Sprintf("%s:/repo", repoDir),
 				"-v", fmt.Sprintf("%s:/source:ro", testAPIRoot),
 				testImage,
 				string(CommandConfigure),
 				"--librarian=/librarian",
 				"--input=/input",
+				"--repo=/repo",
 				"--source=/source",
 			},
 		},
@@ -321,11 +323,13 @@ func TestDockerRun(t *testing.T) {
 				"run", "--rm",
 				"-v", fmt.Sprintf("%s/.librarian:/librarian", repoDir),
 				"-v", fmt.Sprintf("%s/.librarian/generator-input:/input", repoDir),
+				"-v", fmt.Sprintf("%s:/repo", repoDir),
 				"-v", fmt.Sprintf("%s:/source:ro", testAPIRoot),
 				testImage,
 				string(CommandConfigure),
 				"--librarian=/librarian",
 				"--input=/input",
+				"--repo=/repo",
 				"--source=/source",
 			},
 		},

testdata/e2e_func.go

@@ -19,6 +19,7 @@ const (
 	inputDir               = "input"
 	librarian              = "librarian"
 	outputDir              = "output"
+	repoDir                = "repo"
 	simulateCommandErrorID = "simulate-command-error-id"
 	source                 = "source"
 )
@@ -91,6 +92,8 @@ func parseConfigureRequest(args []string) (*configureOption, error) {
 			configureOption.inputDir = strs[1]
 		case librarian:
 			configureOption.librarianDir = strs[1]
+		case repoDir:
+			configureOption.repoDir = strs[1]
 		case source:
 			configureOption.sourceDir = strs[1]
 		default:
@@ -256,6 +259,7 @@ func generateLibrary(library *libraryState, outputDir string) error {
 type configureOption struct {
 	inputDir     string
 	librarianDir string
+	repoDir      string
 	sourceDir    string
 }