From 525adfb185a0a73f38f9c0acaa748f5ebd825e1f Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Sat, 17 Sep 2022 20:40:36 -0600
Subject: flatten visualizenodes, comment out rebuildnodes

---
 .../btrfsinspect/rebuildnodes/bak_rebuildnodes.go  | 102 +++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 lib/btrfsprogs/btrfsinspect/rebuildnodes/bak_rebuildnodes.go

(limited to 'lib/btrfsprogs/btrfsinspect/rebuildnodes/bak_rebuildnodes.go')

diff --git a/lib/btrfsprogs/btrfsinspect/rebuildnodes/bak_rebuildnodes.go b/lib/btrfsprogs/btrfsinspect/rebuildnodes/bak_rebuildnodes.go
new file mode 100644
index 0000000..1a9f487
--- /dev/null
+++ b/lib/btrfsprogs/btrfsinspect/rebuildnodes/bak_rebuildnodes.go
@@ -0,0 +1,102 @@
+// Copyright (C) 2022  Luke Shumaker <lukeshu@lukeshu.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package rebuildnodes
+
+/*
+import (
+	"context"
+	"errors"
+
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfstree"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsvol"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsutil"
+	"git.lukeshu.com/btrfs-progs-ng/lib/diskio"
+)
+
+func RebuildNodes(ctx context.Context, fs *btrfs.FS, nodeScanResults btrfsinspect.ScanDevicesResult) (map[btrfsvol.LogicalAddr]*RebuiltNode, error) {
+		uuidMap, err := buildUUIDMap(ctx, fs, nodeScanResults)
+		if err != nil {
+			return nil, err
+		}
+
+		nfs := &RebuiltTrees{
+			inner:   fs,
+			uuidMap: uuidMap,
+		}
+
+		orphanedNodes, badNodes, treeAncestors, err := classifyNodes(ctx, nfs, nodeScanResults)
+		if err != nil {
+			return nil, err
+		}
+
+		uuidMap.considerAncestors(ctx, treeAncestors)
+
+		rebuiltNodes, err := reInitBrokenNodes(ctx, nfs, badNodes)
+		if err != nil {
+			return nil, err
+		}
+
+		if err := reAttachNodes(ctx, nfs, orphanedNodes, rebuiltNodes); err != nil {
+			return nil, err
+		}
+
+		return rebuiltNodes, nil
+}
+
+func spanOfTreePath(fs _FS, path btrfstree.TreePath) (btrfsprim.Key, btrfsprim.Key) {
+	// tree root error
+	if len(path) == 0 {
+		return btrfsprim.Key{}, maxKey
+	}
+
+	// item error
+	if path.Node(-1).ToNodeAddr == 0 {
+		// If we got an item error, then the node is readable
+		node, _ := fs.ReadNode(path.Parent())
+		key := node.Data.BodyLeaf[path.Node(-1).FromItemIdx].Key
+		return key, key
+	}
+
+	// node error
+	//
+	// assume that path.Node(-1).ToNodeAddr is not readable, but that path.Node(-2).ToNodeAddr is.
+	if len(path) == 1 {
+		return btrfsprim.Key{}, maxKey
+	}
+	parentNode, _ := fs.ReadNode(path.Parent())
+	low := parentNode.Data.BodyInternal[path.Node(-1).FromItemIdx].Key
+	var high btrfsprim.Key
+	if path.Node(-1).FromItemIdx+1 < len(parentNode.Data.BodyInternal) {
+		high = keyMm(parentNode.Data.BodyInternal[path.Node(-1).FromItemIdx+1].Key)
+	} else {
+		parentPath := path.Parent().DeepCopy()
+		_, high = spanOfTreePath(fs, parentPath)
+	}
+	return low, high
+}
+
+func getChunkTreeUUID(ctx context.Context, fs _FS) (btrfsprim.UUID, bool) {
+	ctx, cancel := context.WithCancel(ctx)
+	var ret btrfsprim.UUID
+	var retOK bool
+	btrfsutil.WalkAllTrees(ctx, fs, btrfsutil.WalkAllTreesHandler{
+		TreeWalkHandler: btrfstree.TreeWalkHandler{
+			Node: func(path btrfstree.TreePath, node *diskio.Ref[btrfsvol.LogicalAddr, btrfstree.Node]) error {
+				ret = node.Data.Head.ChunkTreeUUID
+				retOK = true
+				cancel()
+				return nil
+			},
+		},
+		Err: func(err *btrfsutil.WalkError) {
+			// do nothing
+		},
+	})
+	return ret, retOK
+}
+*/
-- 
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