fix: support providing local '.' path to bundle

cmd/serve.go

@@ -32,7 +32,7 @@ func NewServeCommand(out output.Output) *cobra.Command {
 
 	cmd := &cobra.Command{
 		Use:   "serve SUPPORT_BUNDLE_PATH",
-		Short: "Starts a local envtest based k8s server",
+		Short: "Starts a local envtest based Kubernetes API server with bundle resources",
 		Args:  cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return runServe(args[0], options, out)

pkg/bundle/bundle.go

@@ -30,23 +30,25 @@ func (bundle) Layout() Layout {
 }
 
 // New creates bundle representation from given path. It supports reading extracted
-// bundle from directory or `tar.gz` archive, which is automatically extracted
+// bundle from a directory or a `tar.gz` archive, which is automatically extracted
 // to a temporary folder.
 func New(path string) (Bundle, error) {
 	var fs afero.Fs
 
 	switch {
 	case strings.HasSuffix(path, ".tar.gz"):
-		baseDir := filepath.Join(os.TempDir(), "troubleshoot-live")
 		fi, err := os.Stat(path)
 		if err != nil {
 			return nil, err
 		}
+
+		baseDir := filepath.Join(os.TempDir(), "troubleshoot-live")
 		tmpDir := filepath.Join(baseDir, fmt.Sprintf("%s_%d", filepath.Base(path), fi.Size()))
 		ok, err := afero.DirExists(afero.NewOsFs(), tmpDir)
 		if err != nil {
 			return nil, err
 		}
+
 		// Directory for extracting bundle doesn't exist yet
 		if !ok {
 			if err := os.MkdirAll(tmpDir, 0o755); err != nil {
@@ -79,7 +81,12 @@ func New(path string) (Bundle, error) {
 
 		fs = fromDir(filepath.Join(tmpDir, entries[0].Name()))
 	default:
-		isDir, err := afero.IsDir(afero.NewOsFs(), path)
+		absPath, err := filepath.Abs(path)
+		if err != nil {
+			return nil, err
+		}
+
+		isDir, err := afero.IsDir(afero.NewOsFs(), absPath)
 		if err != nil {
 			return nil, err
 		}
@@ -88,7 +95,7 @@ func New(path string) (Bundle, error) {
 			break
 		}
 
-		fs = fromDir(path)
+		fs = fromDir(absPath)
 	}
 
 	if fs == nil {