typof fix and code cleanup

.gitignore

@@ -19,5 +19,6 @@
 *.zip
 /*.sh
 cmd/bali/bali
+/bali
 *.rpm
 /dest/

pkg/barrow/deb.go

@@ -1,6 +1,12 @@
 package barrow
 
-import "context"
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/balibuild/bali/v3/module/ar"
+)
 
 var (
 	debianArchList = map[string]string{
@@ -23,6 +29,20 @@ func debianArchName(arch string) string {
 	return arch
 }
 
+func addArFile(w ar.Writer, name string, body []byte, date time.Time) error {
+	header := &ar.Header{
+		Name:    ToNixPath(name),
+		Size:    int64(len(body)),
+		Mode:    0o644,
+		ModTime: date,
+	}
+	if err := w.WriteHeader(header); err != nil {
+		return fmt.Errorf("cannot write file header: %w", err)
+	}
+	_, err := w.Write(body)
+	return err
+}
+
 func (b *BarrowCtx) deb(ctx context.Context, p *Package, crates []*Crate) error {
 	select {
 	case <-ctx.Done():

pkg/barrow/misc.go

@@ -1,6 +1,7 @@
 package barrow
 
 import (
+	"io"
 	"os"
 	"path/filepath"
 	"strings"
@@ -17,6 +18,14 @@ func isSymlink(fi os.FileInfo) bool {
 	return fi.Mode()&os.ModeSymlink != 0
 }
 
+// nopCloser wrap io.Writer --> io.WriteCloser
+type nopCloser struct {
+	io.Writer
+}
+
+func (w nopCloser) Close() error {
+	return nil
+}
 
 // ToNixPath, AsExplicitRelativePath, AsRelativePath (MIT License)
 // Thanks: https://github.com/goreleaser/nfpm/blob/main/files/files.go

pkg/barrow/tar.go

@@ -169,14 +169,6 @@ func (b *BarrowCtx) sh(ctx context.Context, p *Package, crates []*Crate) error {
 	return nil
 }
 
-type noWriteCloser struct {
-	io.Writer
-}
-
-func (w noWriteCloser) Close() error {
-	return nil
-}
-
 type FnCompressor func(w io.Writer) (io.WriteCloser, error)
 
 func tarCompressor(method string) (FnCompressor, string, error) {
@@ -203,10 +195,10 @@ func tarCompressor(method string) (FnCompressor, string, error) {
 		}, ".tar.gz", nil
 	case "none":
 		return func(w io.Writer) (io.WriteCloser, error) {
-			return &noWriteCloser{Writer: w}, nil
+			return &nopCloser{Writer: w}, nil
 		}, ".tar", nil
 	default:
-		return nil, "", fmt.Errorf("unsupported zip compress method '%s'", method)
+		return nil, "", fmt.Errorf("unsupported tar compress method '%s'", method)
 	}
 }