1 files changed, 51 insertions, 0 deletions
diff --git a/cmd/btrfs-rec/inspect_listnodes.go b/cmd/btrfs-rec/inspect_listnodes.go
new file mode 100644
index 0000000..d9b24ed
--- /dev/null
+++ b/cmd/btrfs-rec/inspect_listnodes.go
@@ -0,0 +1,51 @@
+// Copyright (C) 2022-2023  Luke Shumaker <lukeshu@lukeshu.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package main
+
+import (
+	"os"
+
+	"git.lukeshu.com/go/lowmemjson"
+	"github.com/datawire/dlib/dlog"
+	"github.com/datawire/ocibuild/pkg/cliutil"
+	"github.com/spf13/cobra"
+
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsutil"
+)
+
+func init() {
+	inspectors.AddCommand(&cobra.Command{
+		Use:   "list-nodes",
+		Short: "Scan the filesystem for btree nodes",
+		Long: "" +
+			"This scans the filesystem sector-by-sector looking for nodes.  " +
+			"If you are needing to rebuild the chunk/dev-extent/blockgroup " +
+			"trees with `btrfs-rec inspect rebuild-mappings` anyway, you may " +
+			"want to instead use `btrfs-rec inspect rebuild-mappings list-nodes` " +
+			"to take advantage of the sector-by-sector scan that's already " +
+			"performed by `btrfs-rec inspect rebuild-mappings scan`.",
+		Args: cliutil.WrapPositionalArgs(cobra.ExactArgs(1)),
+		RunE: runWithRawFS(func(fs *btrfs.FS, cmd *cobra.Command, args []string) error {
+			ctx := cmd.Context()
+
+			nodeList, err := btrfsutil.ListNodes(ctx, fs)
+			if err != nil {
+				return err
+			}
+
+			dlog.Infof(ctx, "Writing nodes to stdout...")
+			if err := writeJSONFile(os.Stdout, nodeList, lowmemjson.ReEncoderConfig{
+				Indent:                "\t",
+				ForceTrailingNewlines: true,
+			}); err != nil {
+				return err
+			}
+			dlog.Info(ctx, "... done writing")
+
+			return nil
+		}),
+	})
+}