move chunk reconstruction to btrfsinspect, add --mappings

1 files changed, 8 insertions, 5 deletions

diff --git a/lib/btrfsprogs/btrfsutil/open.go b/lib/btrfsprogs/btrfsutil/open.go
index cc081a6..80bfe7a 100644
--- a/lib/btrfsprogs/btrfsutil/open.go
+++ b/lib/btrfsprogs/btrfsutil/open.go
@@ -5,23 +5,26 @@
 package btrfsutil
 
 import (
+	"context"
 	"fmt"
 	"os"
 
+	"github.com/datawire/dlib/dlog"
+
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
 )
 
-func Open(flag int, filenames ...string) (*btrfs.FS, error) {
+func Open(ctx context.Context, flag int, filenames ...string) (*btrfs.FS, error) {
 	fs := new(btrfs.FS)
-	for _, filename := range filenames {
+	for i, filename := range filenames {
+		dlog.Debugf(ctx, "Adding device file %d/%d %q...", i, len(filenames), filename)
 		fh, err := os.OpenFile(filename, flag, 0)
 		if err != nil {
 			_ = fs.Close()
-			return nil, fmt.Errorf("file %q: %w", filename, err)
+			return nil, fmt.Errorf("device file %q: %w", filename, err)
 		}
 		if err := fs.AddDevice(&btrfs.Device{File: fh}); err != nil {
-			_ = fs.Close()
-			return nil, fmt.Errorf("file %q: %w", filename, err)
+			dlog.Errorf(ctx, "device file %q: %v", filename, err)
 		}
 	}
 	return fs, nil