Get it to compile with the renamed files

    #!/bin/bash
    set -e

    git ls-files :*.go :!tools/| while read -r file; do
    	pkgname=${file%/*.go}
    	pkgname=${pkgname##*/}
    	if [[ "$pkgname" == btrfs-rec ]]; then
    		pkgname=main
    	fi
    	sed -i "s/^package [^_]*/package ${pkgname}/" "$file"
    done

    # btrfsutil ####################################################################

    gofmt -w -r 'rebuildnodes -> rebuildtrees' cmd lib
    gofmt -w -r 'btrees       -> btrfsutil'    cmd lib
    gofmt -w -r 'keyio        -> btrfsutil'    cmd lib

    sed -i 's/func New/func NewGraph/' lib/btrfsutil/graph.go
    gofmt -w -r 'graph.New   -> btrfsutil.NewGraph' cmd lib
    gofmt -w -r 'graph.Graph -> btrfsutil.Graph'    cmd lib
    sed -i -e '/\/graph"/d' -e 's/pkggraph\.//' lib/btrfsutil/rebuilt_forrest.go

    gofmt -w -r 'btrfsutil.BrokenForrest -> BrokenForrest ' lib/btrfsutil
    gofmt -w -r 'btrfsutil.Handle        -> Handle        ' lib/btrfsutil
    gofmt -w -r 'btrfsutil.Graph         -> Graph         ' lib/btrfsutil
    gofmt -w -r 'btrfsutil.ItemPtr       -> ItemPtr       ' lib/btrfsutil

    gofmt -w -r 'Handle -> KeyIO' lib/btrfsutil
    gofmt -w -r 'btrfsutil.Handle -> btrfsutil.KeyIO' cmd/btrfs-rec/inspect/rebuildtrees/
    gofmt -w -r 'NewHandle -> NewKeyIO' cmd lib

    # rebuildmappings ##############################################################

    gofmt -w -r 'btrfsinspect.DumpTrees         -> dumptrees.DumpTrees'               cmd lib
    gofmt -w -r 'btrfsinspect.MountRO           -> mount.MountRO'                     cmd lib
    gofmt -w -r 'btrfsinspect.ScanDevices       -> rebuildmappings.ScanDevices'       cmd lib
    gofmt -w -r 'btrfsinspect.ScanDevicesResult -> rebuildmappings.ScanDevicesResult' cmd lib
    gofmt -w -r 'btrfsinspect.SysExtentCSum     -> rebuildmappings.SysExtentCSum'     cmd lib

    gofmt -w -r 'rebuildmappings.IndexAll          -> IndexAll          ' cmd/btrfs-rec/inspect/rebuildmappings
    gofmt -w -r 'rebuildmappings.ScanDevicesResult -> ScanDevicesResult ' cmd/btrfs-rec/inspect/rebuildmappings
    gofmt -w -r 'rebuildmappings.SysExtentCSum     -> SysExtentCSum     ' cmd/btrfs-rec/inspect/rebuildmappings

    # btrfscheck ###################################################################

    sed -i -e 's/func handle/func Handle/' lib/btrfscheck/graph.go
    sed -i 's/handle/btrfscheck.Handle/g' cmd/btrfs-rec/inspect/rebuildtrees/rebuild.go
    gofmt -w -r 'fsErr        -> FSErr        ' lib/btrfscheck cmd/btrfs-rec/inspect/rebuildtrees
    gofmt -w -r 'want         -> Want         ' lib/btrfscheck cmd/btrfs-rec/inspect/rebuildtrees
    gofmt -w -r 'wantOff      -> WantOff      ' lib/btrfscheck cmd/btrfs-rec/inspect/rebuildtrees
    gofmt -w -r 'wantDirIndex -> WantDirIndex ' lib/btrfscheck cmd/btrfs-rec/inspect/rebuildtrees
    gofmt -w -r 'wantCSum     -> WantCSum     ' lib/btrfscheck cmd/btrfs-rec/inspect/rebuildtrees
    gofmt -w -r 'wantFileExt  -> WantFileExt  ' lib/btrfscheck cmd/btrfs-rec/inspect/rebuildtrees

    # generic imports ##############################################################

    replace() {
    	git grep -l "$1"|xargs -r sed -i "s,$1,$2,g"
    }

    replace 'lib/btrfsprogs/btrfsinspect/rebuildmappings"' 'cmd/btrfs-rec/inspect/rebuildmappings"'
    replace 'lib/btrfsprogs/btrfsinspect/rebuildnodes"'    'cmd/btrfs-rec/inspect/rebuildtrees"'
    replace 'lib/btrfsprogs/btrfsutil"'                    'lib/btrfsutil"'
    goimports -w cmd lib
    ./tools/bin/golangci-lint run --fix ./...

And then touch-up copyright statements by hand.

13 files changed, 68 insertions, 74 deletions

diff --git a/cmd/btrfs-rec/inspect/dumptrees/print_tree.go b/cmd/btrfs-rec/inspect/dumptrees/print_tree.go
index 240c72f..676306a 100644
--- a/cmd/btrfs-rec/inspect/dumptrees/print_tree.go
+++ b/cmd/btrfs-rec/inspect/dumptrees/print_tree.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package btrfsinspect
+package dumptrees
 
 import (
 	"context"
diff --git a/cmd/btrfs-rec/inspect/mount/mount.go b/cmd/btrfs-rec/inspect/mount/mount.go
index 0ac8497..7e68ae6 100644
--- a/cmd/btrfs-rec/inspect/mount/mount.go
+++ b/cmd/btrfs-rec/inspect/mount/mount.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package btrfsinspect
+package mount
 
 import (
 	"context"
@@ -25,7 +25,7 @@ import (
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsitem"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim"
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsutil"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsutil"
 	"git.lukeshu.com/btrfs-progs-ng/lib/containers"
 	"git.lukeshu.com/btrfs-progs-ng/lib/maps"
 	"git.lukeshu.com/btrfs-progs-ng/lib/slices"
diff --git a/cmd/btrfs-rec/inspect/rebuildmappings/process.go b/cmd/btrfs-rec/inspect/rebuildmappings/process.go
index cdf5e5a..5f41f15 100644
--- a/cmd/btrfs-rec/inspect/rebuildmappings/process.go
+++ b/cmd/btrfs-rec/inspect/rebuildmappings/process.go
@@ -12,7 +12,6 @@ import (
 
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
 	"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/containers"
 	"git.lukeshu.com/btrfs-progs-ng/lib/maps"
 	"git.lukeshu.com/btrfs-progs-ng/lib/textui"
@@ -26,7 +25,7 @@ func getNodeSize(fs *btrfs.FS) (btrfsvol.AddrDelta, error) {
 	return btrfsvol.AddrDelta(sb.NodeSize), nil
 }
 
-func RebuildMappings(ctx context.Context, fs *btrfs.FS, scanResults btrfsinspect.ScanDevicesResult) error {
+func RebuildMappings(ctx context.Context, fs *btrfs.FS, scanResults ScanDevicesResult) error {
 	nodeSize, err := getNodeSize(fs)
 	if err != nil {
 		return err
diff --git a/cmd/btrfs-rec/inspect/rebuildmappings/process_blockgroups.go b/cmd/btrfs-rec/inspect/rebuildmappings/process_blockgroups.go
index 0e2d5a0..f8d2337 100644
--- a/cmd/btrfs-rec/inspect/rebuildmappings/process_blockgroups.go
+++ b/cmd/btrfs-rec/inspect/rebuildmappings/process_blockgroups.go
@@ -1,4 +1,4 @@
-// Copyright (C) 2022  Luke Shumaker <lukeshu@lukeshu.com>
+// Copyright (C) 2022-2023  Luke Shumaker <lukeshu@lukeshu.com>
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -9,7 +9,6 @@ import (
 	"sort"
 
 	"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/containers"
 	"git.lukeshu.com/btrfs-progs-ng/lib/maps"
 )
@@ -20,7 +19,7 @@ type BlockGroup struct {
 	Flags btrfsvol.BlockGroupFlags
 }
 
-func DedupBlockGroups(scanResults btrfsinspect.ScanDevicesResult) (map[btrfsvol.LogicalAddr]BlockGroup, error) {
+func DedupBlockGroups(scanResults ScanDevicesResult) (map[btrfsvol.LogicalAddr]BlockGroup, error) {
 	// Dedup
 	bgsSet := make(containers.Set[BlockGroup])
 	for _, devResults := range scanResults {
diff --git a/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_logical.go b/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_logical.go
index 7c02d05..2cdabb7 100644
--- a/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_logical.go
+++ b/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_logical.go
@@ -15,13 +15,12 @@ import (
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsitem"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfssum"
 	"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/containers"
 	"git.lukeshu.com/btrfs-progs-ng/lib/slices"
 )
 
-func ExtractLogicalSums(ctx context.Context, scanResults btrfsinspect.ScanDevicesResult) SumRunWithGaps[btrfsvol.LogicalAddr] {
-	var records []btrfsinspect.SysExtentCSum
+func ExtractLogicalSums(ctx context.Context, scanResults ScanDevicesResult) SumRunWithGaps[btrfsvol.LogicalAddr] {
+	var records []SysExtentCSum
 	for _, devResults := range scanResults {
 		records = append(records, devResults.FoundExtentCSums...)
 	}
@@ -53,10 +52,10 @@ func ExtractLogicalSums(ctx context.Context, scanResults btrfsinspect.ScanDevice
 	// "AAAAAAA" shouldn't be present, and if we just discard "BBBBBBBB"
 	// because it conflicts with "CCCCCCC", then we would erroneously
 	// include "AAAAAAA".
-	addrspace := new(containers.RBTree[btrfsinspect.SysExtentCSum])
+	addrspace := new(containers.RBTree[SysExtentCSum])
 	for _, newRecord := range records {
 		for {
-			conflict := addrspace.Search(func(oldRecord btrfsinspect.SysExtentCSum) int {
+			conflict := addrspace.Search(func(oldRecord SysExtentCSum) int {
 				switch {
 				case newRecord.Sums.Addr.Add(newRecord.Sums.Size()) <= oldRecord.Sums.Addr:
 					// 'newRecord' is wholly to the left of 'oldRecord'.
@@ -128,7 +127,7 @@ func ExtractLogicalSums(ctx context.Context, scanResults btrfsinspect.ScanDevice
 			case newRecord.Sums.Addr.Add(newRecord.Sums.Size()) > overlapEnd:
 				suffix = newRecord.Sums.Sums[newOverlapEnd:]
 			}
-			unionRecord := btrfsinspect.SysExtentCSum{
+			unionRecord := SysExtentCSum{
 				Generation: oldRecord.Generation,
 				Sums: btrfsitem.ExtentCSum{
 					SumRun: btrfssum.SumRun[btrfsvol.LogicalAddr]{
@@ -148,7 +147,7 @@ func ExtractLogicalSums(ctx context.Context, scanResults btrfsinspect.ScanDevice
 	var flattened SumRunWithGaps[btrfsvol.LogicalAddr]
 	var curAddr btrfsvol.LogicalAddr
 	var curSums strings.Builder
-	addrspace.Range(func(node *containers.RBNode[btrfsinspect.SysExtentCSum]) bool {
+	addrspace.Range(func(node *containers.RBNode[SysExtentCSum]) bool {
 		curEnd := curAddr + (btrfsvol.LogicalAddr(curSums.Len()/sumSize) * btrfssum.BlockSize)
 		if node.Value.Sums.Addr != curEnd {
 			if curSums.Len() > 0 {
diff --git a/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_physical.go b/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_physical.go
index da22fbf..392ded9 100644
--- a/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_physical.go
+++ b/cmd/btrfs-rec/inspect/rebuildmappings/process_sums_physical.go
@@ -13,11 +13,10 @@ import (
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfssum"
 	"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/maps"
 )
 
-func ExtractPhysicalSums(scanResults btrfsinspect.ScanDevicesResult) map[btrfsvol.DeviceID]btrfssum.SumRun[btrfsvol.PhysicalAddr] {
+func ExtractPhysicalSums(scanResults ScanDevicesResult) map[btrfsvol.DeviceID]btrfssum.SumRun[btrfsvol.PhysicalAddr] {
 	ret := make(map[btrfsvol.DeviceID]btrfssum.SumRun[btrfsvol.PhysicalAddr], len(scanResults))
 	for devID, devResults := range scanResults {
 		ret[devID] = devResults.Checksums
diff --git a/cmd/btrfs-rec/inspect/rebuildmappings/scan.go b/cmd/btrfs-rec/inspect/rebuildmappings/scan.go
index d54be71..b67beaf 100644
--- a/cmd/btrfs-rec/inspect/rebuildmappings/scan.go
+++ b/cmd/btrfs-rec/inspect/rebuildmappings/scan.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package btrfsinspect
+package rebuildmappings
 
 import (
 	"context"
diff --git a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild.go b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild.go
index cf334a0..6492d9c 100644
--- a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild.go
+++ b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package rebuildnodes
+package rebuildtrees
 
 import (
 	"context"
@@ -14,15 +14,14 @@ import (
 	"github.com/datawire/dlib/dgroup"
 	"github.com/datawire/dlib/dlog"
 
+	"git.lukeshu.com/btrfs-progs-ng/cmd/btrfs-rec/inspect/rebuildmappings"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsitem"
 	"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/btrfsinspect/rebuildnodes/btrees"
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect/rebuildnodes/graph"
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect/rebuildnodes/keyio"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfscheck"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsutil"
 	"git.lukeshu.com/btrfs-progs-ng/lib/containers"
 	"git.lukeshu.com/btrfs-progs-ng/lib/maps"
 	"git.lukeshu.com/btrfs-progs-ng/lib/textui"
@@ -46,10 +45,10 @@ func (o keyAndTree) String() string {
 
 type rebuilder struct {
 	sb    btrfstree.Superblock
-	graph graph.Graph
-	keyIO *keyio.Handle
+	graph btrfsutil.Graph
+	keyIO *btrfsutil.KeyIO
 
-	rebuilt *btrees.RebuiltForrest
+	rebuilt *btrfsutil.RebuiltForrest
 
 	curKey struct {
 		TreeID btrfsprim.ObjID
@@ -75,7 +74,7 @@ type Rebuilder interface {
 	ListRoots(context.Context) map[btrfsprim.ObjID]containers.Set[btrfsvol.LogicalAddr]
 }
 
-func NewRebuilder(ctx context.Context, fs *btrfs.FS, nodeScanResults btrfsinspect.ScanDevicesResult) (Rebuilder, error) {
+func NewRebuilder(ctx context.Context, fs *btrfs.FS, nodeScanResults rebuildmappings.ScanDevicesResult) (Rebuilder, error) {
 	ctx = dlog.WithField(ctx, "btrfsinspect.rebuild-nodes.step", "read-fs-data")
 	sb, nodeGraph, keyIO, err := ScanDevices(ctx, fs, nodeScanResults) // ScanDevices does its own logging
 	if err != nil {
@@ -87,7 +86,7 @@ func NewRebuilder(ctx context.Context, fs *btrfs.FS, nodeScanResults btrfsinspec
 		graph: nodeGraph,
 		keyIO: keyIO,
 	}
-	o.rebuilt = btrees.NewRebuiltForrest(sb, nodeGraph, keyIO, o)
+	o.rebuilt = btrfsutil.NewRebuiltForrest(sb, nodeGraph, keyIO, o)
 	return o, nil
 }
 
@@ -214,7 +213,7 @@ func (o *rebuilder) processAddedItemQueue(ctx context.Context) error {
 			progress.NumAugments = o.numAugments
 			progress.NumAugmentTrees = len(o.augmentQueue)
 			progressWriter.Set(progress)
-		} else if !handleWouldBeNoOp(key.ItemType) {
+		} else if !btrfscheck.HandleWouldBeNoOp(key.ItemType) {
 			o.settledItemQueue.Insert(key)
 		}
 	}
@@ -284,7 +283,7 @@ func (o *rebuilder) processSettledItemQueue(ctx context.Context) error {
 			ctx := dlog.WithField(ctx, "btrfsinspect.rebuild-nodes.rebuild.process.item", item.keyAndTree)
 			o.curKey.TreeID = item.TreeID
 			o.curKey.Key.Val = item.Key
-			handleItem(o, ctx, item.TreeID, btrfstree.Item{
+			btrfscheck.HandleItem(o, ctx, item.TreeID, btrfstree.Item{
 				Key:  item.Key,
 				Body: item.Body,
 			})
diff --git a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_treecb.go b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_treecb.go
index 492436b..d58689c 100644
--- a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_treecb.go
+++ b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_treecb.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package rebuildnodes
+package rebuildtrees
 
 import (
 	"context"
@@ -50,7 +50,7 @@ func (o *rebuilder) LookupRoot(ctx context.Context, tree btrfsprim.ObjID) (offse
 	case *btrfsitem.Root:
 		return btrfsprim.Generation(foundKey.Offset), *itemBody, true
 	case *btrfsitem.Error:
-		o.fsErr(ctx, fmt.Errorf("error decoding item: %v: %w", foundKey, itemBody.Err))
+		o.FSErr(ctx, fmt.Errorf("error decoding item: %v: %w", foundKey, itemBody.Err))
 		return 0, btrfsitem.Root{}, false
 	default:
 		// This is a panic because the item decoder should not emit ROOT_ITEM items as anything but
@@ -76,7 +76,7 @@ func (o *rebuilder) LookupUUID(ctx context.Context, uuid btrfsprim.UUID) (id btr
 	case *btrfsitem.UUIDMap:
 		return itemBody.ObjID, true
 	case *btrfsitem.Error:
-		o.fsErr(ctx, fmt.Errorf("error decoding item: %v: %w", wantKey, itemBody.Err))
+		o.FSErr(ctx, fmt.Errorf("error decoding item: %v: %w", wantKey, itemBody.Err))
 		return 0, false
 	default:
 		// This is a panic because the item decoder should not emit UUID_SUBVOL items as anything but
diff --git a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wantcb.go b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wantcb.go
index adf3cff..06be630 100644
--- a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wantcb.go
+++ b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wantcb.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package rebuildnodes
+package rebuildtrees
 
 import (
 	"bytes"
@@ -15,17 +15,17 @@ import (
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfssum"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsvol"
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect/rebuildnodes/keyio"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsutil"
 	"git.lukeshu.com/btrfs-progs-ng/lib/containers"
 )
 
 // fsErr implements rebuildCallbacks.
-func (o *rebuilder) fsErr(ctx context.Context, e error) {
+func (o *rebuilder) FSErr(ctx context.Context, e error) {
 	dlog.Errorf(ctx, "filesystem error: %v", e)
 }
 
 // want implements rebuildCallbacks.
-func (o *rebuilder) want(ctx context.Context, reason string, treeID btrfsprim.ObjID, objID btrfsprim.ObjID, typ btrfsprim.ItemType) {
+func (o *rebuilder) Want(ctx context.Context, reason string, treeID btrfsprim.ObjID, objID btrfsprim.ObjID, typ btrfsprim.ItemType) {
 	wantKey := WantWithTree{
 		TreeID: treeID,
 		Key: Want{
@@ -47,7 +47,7 @@ func (o *rebuilder) _want(ctx context.Context, wantKey WantWithTree) (key btrfsp
 	// check if we already have it
 
 	tgt := wantKey.Key.Key()
-	if key, _, ok := o.rebuilt.Tree(ctx, wantKey.TreeID).Items(ctx).Search(func(key btrfsprim.Key, _ keyio.ItemPtr) int {
+	if key, _, ok := o.rebuilt.Tree(ctx, wantKey.TreeID).Items(ctx).Search(func(key btrfsprim.Key, _ btrfsutil.ItemPtr) int {
 		key.Offset = 0
 		return tgt.Compare(key)
 	}); ok {
@@ -61,11 +61,11 @@ func (o *rebuilder) _want(ctx context.Context, wantKey WantWithTree) (key btrfsp
 	}
 	wants := make(containers.Set[btrfsvol.LogicalAddr])
 	o.rebuilt.Tree(ctx, wantKey.TreeID).PotentialItems(ctx).Subrange(
-		func(k btrfsprim.Key, _ keyio.ItemPtr) int {
+		func(k btrfsprim.Key, _ btrfsutil.ItemPtr) int {
 			k.Offset = 0
 			return tgt.Compare(k)
 		},
-		func(_ btrfsprim.Key, v keyio.ItemPtr) bool {
+		func(_ btrfsprim.Key, v btrfsutil.ItemPtr) bool {
 			wants.InsertFrom(o.rebuilt.Tree(ctx, wantKey.TreeID).LeafToRoots(ctx, v.Node))
 			return true
 		})
@@ -74,7 +74,7 @@ func (o *rebuilder) _want(ctx context.Context, wantKey WantWithTree) (key btrfsp
 }
 
 // wantOff implements rebuildCallbacks.
-func (o *rebuilder) wantOff(ctx context.Context, reason string, treeID btrfsprim.ObjID, objID btrfsprim.ObjID, typ btrfsprim.ItemType, off uint64) {
+func (o *rebuilder) WantOff(ctx context.Context, reason string, treeID btrfsprim.ObjID, objID btrfsprim.ObjID, typ btrfsprim.ItemType, off uint64) {
 	wantKey := WantWithTree{
 		TreeID: treeID,
 		Key: Want{
@@ -108,8 +108,8 @@ func (o *rebuilder) _wantOff(ctx context.Context, wantKey WantWithTree) (ok bool
 	}
 	wants := make(containers.Set[btrfsvol.LogicalAddr])
 	o.rebuilt.Tree(ctx, wantKey.TreeID).PotentialItems(ctx).Subrange(
-		func(k btrfsprim.Key, _ keyio.ItemPtr) int { return tgt.Compare(k) },
-		func(_ btrfsprim.Key, v keyio.ItemPtr) bool {
+		func(k btrfsprim.Key, _ btrfsutil.ItemPtr) int { return tgt.Compare(k) },
+		func(_ btrfsprim.Key, v btrfsutil.ItemPtr) bool {
 			wants.InsertFrom(o.rebuilt.Tree(ctx, wantKey.TreeID).LeafToRoots(ctx, v.Node))
 			return true
 		})
@@ -118,7 +118,7 @@ func (o *rebuilder) _wantOff(ctx context.Context, wantKey WantWithTree) (ok bool
 }
 
 // wantDirIndex implements rebuildCallbacks.
-func (o *rebuilder) wantDirIndex(ctx context.Context, reason string, treeID btrfsprim.ObjID, objID btrfsprim.ObjID, name []byte) {
+func (o *rebuilder) WantDirIndex(ctx context.Context, reason string, treeID btrfsprim.ObjID, objID btrfsprim.ObjID, name []byte) {
 	wantKey := WantWithTree{
 		TreeID: treeID,
 		Key: Want{
@@ -140,11 +140,11 @@ func (o *rebuilder) wantDirIndex(ctx context.Context, reason string, treeID btrf
 	tgt := wantKey.Key.Key()
 	found := false
 	o.rebuilt.Tree(ctx, treeID).Items(ctx).Subrange(
-		func(key btrfsprim.Key, _ keyio.ItemPtr) int {
+		func(key btrfsprim.Key, _ btrfsutil.ItemPtr) int {
 			key.Offset = 0
 			return tgt.Compare(key)
 		},
-		func(_ btrfsprim.Key, ptr keyio.ItemPtr) bool {
+		func(_ btrfsprim.Key, ptr btrfsutil.ItemPtr) bool {
 			if itemName, ok := o.keyIO.Names[ptr]; ok && bytes.Equal(itemName, name) {
 				found = true
 			}
@@ -161,11 +161,11 @@ func (o *rebuilder) wantDirIndex(ctx context.Context, reason string, treeID btrf
 	}
 	wants := make(containers.Set[btrfsvol.LogicalAddr])
 	o.rebuilt.Tree(ctx, treeID).PotentialItems(ctx).Subrange(
-		func(key btrfsprim.Key, _ keyio.ItemPtr) int {
+		func(key btrfsprim.Key, _ btrfsutil.ItemPtr) int {
 			key.Offset = 0
 			return tgt.Compare(key)
 		},
-		func(_ btrfsprim.Key, ptr keyio.ItemPtr) bool {
+		func(_ btrfsprim.Key, ptr btrfsutil.ItemPtr) bool {
 			if itemName, ok := o.keyIO.Names[ptr]; ok && bytes.Equal(itemName, name) {
 				wants.InsertFrom(o.rebuilt.Tree(ctx, treeID).LeafToRoots(ctx, ptr.Node))
 			}
@@ -176,10 +176,10 @@ func (o *rebuilder) wantDirIndex(ctx context.Context, reason string, treeID btrf
 
 func (o *rebuilder) _walkRange(
 	ctx context.Context,
-	items *containers.SortedMap[btrfsprim.Key, keyio.ItemPtr],
+	items *containers.SortedMap[btrfsprim.Key, btrfsutil.ItemPtr],
 	treeID, objID btrfsprim.ObjID, typ btrfsprim.ItemType,
 	beg, end uint64,
-	fn func(key btrfsprim.Key, ptr keyio.ItemPtr, beg, end uint64),
+	fn func(key btrfsprim.Key, ptr btrfsutil.ItemPtr, beg, end uint64),
 ) {
 	min := btrfsprim.Key{
 		ObjectID: objID,
@@ -192,7 +192,7 @@ func (o *rebuilder) _walkRange(
 		Offset:   end - 1,
 	}
 	items.Subrange(
-		func(runKey btrfsprim.Key, _ keyio.ItemPtr) int {
+		func(runKey btrfsprim.Key, _ btrfsutil.ItemPtr) int {
 			switch {
 			case min.Compare(runKey) < 0:
 				return 1
@@ -202,14 +202,14 @@ func (o *rebuilder) _walkRange(
 				return 0
 			}
 		},
-		func(runKey btrfsprim.Key, runPtr keyio.ItemPtr) bool {
+		func(runKey btrfsprim.Key, runPtr btrfsutil.ItemPtr) bool {
 			runSizeAndErr, ok := o.keyIO.Sizes[runPtr]
 			if !ok {
 				panic(fmt.Errorf("should not happen: %v (%v) did not have a size recorded",
 					runPtr, keyAndTree{TreeID: treeID, Key: runKey}))
 			}
 			if runSizeAndErr.Err != nil {
-				o.fsErr(ctx, fmt.Errorf("get size: %v (%v): %w",
+				o.FSErr(ctx, fmt.Errorf("get size: %v (%v): %w",
 					runPtr, keyAndTree{TreeID: treeID, Key: runKey},
 					runSizeAndErr.Err))
 				return true
@@ -273,7 +273,7 @@ func (o *rebuilder) _wantRange(
 		ctx,
 		o.rebuilt.Tree(ctx, treeID).Items(ctx),
 		treeID, objID, typ, beg, end,
-		func(runKey btrfsprim.Key, _ keyio.ItemPtr, runBeg, runEnd uint64) {
+		func(runKey btrfsprim.Key, _ btrfsutil.ItemPtr, runBeg, runEnd uint64) {
 			var overlappingGaps []*containers.RBNode[gap]
 			gaps.Subrange(
 				func(gap gap) int {
@@ -324,7 +324,7 @@ func (o *rebuilder) _wantRange(
 			ctx,
 			potentialItems,
 			treeID, objID, typ, gap.Beg, gap.End,
-			func(k btrfsprim.Key, v keyio.ItemPtr, runBeg, runEnd uint64) {
+			func(k btrfsprim.Key, v btrfsutil.ItemPtr, runBeg, runEnd uint64) {
 				// TODO: This is dumb and greedy.
 				if last < runBeg {
 					// log an error
@@ -353,7 +353,7 @@ func (o *rebuilder) _wantRange(
 // func implements rebuildCallbacks.
 //
 // interval is [beg, end)
-func (o *rebuilder) wantCSum(ctx context.Context, reason string, inodeTree, inode btrfsprim.ObjID, beg, end btrfsvol.LogicalAddr) {
+func (o *rebuilder) WantCSum(ctx context.Context, reason string, inodeTree, inode btrfsprim.ObjID, beg, end btrfsvol.LogicalAddr) {
 	inodeWant := WantWithTree{
 		TreeID: inodeTree,
 		Key: Want{
@@ -377,7 +377,7 @@ func (o *rebuilder) wantCSum(ctx context.Context, reason string, inodeTree, inod
 		panic(fmt.Errorf("should not happen: INODE_ITEM did not have flags recorded"))
 	}
 	if inodeFlags.Err != nil {
-		o.fsErr(inodeCtx, inodeFlags.Err)
+		o.FSErr(inodeCtx, inodeFlags.Err)
 		return
 	}
 
@@ -392,7 +392,7 @@ func (o *rebuilder) wantCSum(ctx context.Context, reason string, inodeTree, inod
 }
 
 // wantFileExt implements rebuildCallbacks.
-func (o *rebuilder) wantFileExt(ctx context.Context, reason string, treeID btrfsprim.ObjID, ino btrfsprim.ObjID, size int64) {
+func (o *rebuilder) WantFileExt(ctx context.Context, reason string, treeID btrfsprim.ObjID, ino btrfsprim.ObjID, size int64) {
 	o._wantRange(
 		ctx, reason,
 		treeID, ino, btrfsprim.EXTENT_DATA_KEY,
diff --git a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wanttyp.go b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wanttyp.go
index 2b471fe..fa1ba98 100644
--- a/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wanttyp.go
+++ b/cmd/btrfs-rec/inspect/rebuildtrees/rebuild_wanttyp.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package rebuildnodes
+package rebuildtrees
 
 import (
 	"context"
diff --git a/cmd/btrfs-rec/inspect/rebuildtrees/scan.go b/cmd/btrfs-rec/inspect/rebuildtrees/scan.go
index 17949ab..03261e0 100644
--- a/cmd/btrfs-rec/inspect/rebuildtrees/scan.go
+++ b/cmd/btrfs-rec/inspect/rebuildtrees/scan.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package rebuildnodes
+package rebuildtrees
 
 import (
 	"context"
@@ -10,22 +10,21 @@ import (
 
 	"github.com/datawire/dlib/dlog"
 
+	"git.lukeshu.com/btrfs-progs-ng/cmd/btrfs-rec/inspect/rebuildmappings"
 	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
 	"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/btrfsinspect/rebuildnodes/graph"
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect/rebuildnodes/keyio"
+	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsutil"
 	"git.lukeshu.com/btrfs-progs-ng/lib/containers"
 	"git.lukeshu.com/btrfs-progs-ng/lib/maps"
 	"git.lukeshu.com/btrfs-progs-ng/lib/textui"
 )
 
-func ScanDevices(ctx context.Context, fs *btrfs.FS, scanResults btrfsinspect.ScanDevicesResult) (btrfstree.Superblock, graph.Graph, *keyio.Handle, error) {
+func ScanDevices(ctx context.Context, fs *btrfs.FS, scanResults rebuildmappings.ScanDevicesResult) (btrfstree.Superblock, btrfsutil.Graph, *btrfsutil.KeyIO, error) {
 	dlog.Info(ctx, "Reading superblock...")
 	sb, err := fs.Superblock()
 	if err != nil {
-		return btrfstree.Superblock{}, graph.Graph{}, nil, err
+		return btrfstree.Superblock{}, btrfsutil.Graph{}, nil, err
 	}
 
 	dlog.Infof(ctx, "Reading node data from FS...")
@@ -36,21 +35,21 @@ func ScanDevices(ctx context.Context, fs *btrfs.FS, scanResults btrfsinspect.Sca
 		dlog.WithField(ctx, "btrfsinspect.rebuild-nodes.read.substep", "read-nodes"),
 		dlog.LogLevelInfo, textui.Tunable(1*time.Second))
 
-	nodeGraph := graph.New(*sb)
-	keyIO := keyio.NewHandle(fs, *sb)
+	nodeGraph := btrfsutil.NewGraph(*sb)
+	keyIO := btrfsutil.NewKeyIO(fs, *sb)
 
 	progressWriter.Set(stats)
 	for _, devResults := range scanResults {
 		for _, laddr := range maps.SortedKeys(devResults.FoundNodes) {
 			if err := ctx.Err(); err != nil {
-				return btrfstree.Superblock{}, graph.Graph{}, nil, err
+				return btrfstree.Superblock{}, btrfsutil.Graph{}, nil, err
 			}
 			nodeRef, err := btrfstree.ReadNode[btrfsvol.LogicalAddr](fs, *sb, laddr, btrfstree.NodeExpectations{
 				LAddr: containers.Optional[btrfsvol.LogicalAddr]{OK: true, Val: laddr},
 			})
 			if err != nil {
 				btrfstree.FreeNodeRef(nodeRef)
-				return btrfstree.Superblock{}, graph.Graph{}, nil, err
+				return btrfstree.Superblock{}, btrfsutil.Graph{}, nil, err
 			}
 
 			nodeGraph.InsertNode(nodeRef)
@@ -69,7 +68,7 @@ func ScanDevices(ctx context.Context, fs *btrfs.FS, scanResults btrfsinspect.Sca
 	dlog.Info(ctx, "... done reading node data")
 
 	if err := nodeGraph.FinalCheck(ctx, fs, *sb); err != nil {
-		return btrfstree.Superblock{}, graph.Graph{}, nil, err
+		return btrfstree.Superblock{}, btrfsutil.Graph{}, nil, err
 	}
 	keyIO.SetGraph(*nodeGraph)
 
diff --git a/cmd/btrfs-rec/inspect/rebuildtrees/util.go b/cmd/btrfs-rec/inspect/rebuildtrees/util.go
index 9d91f23..71caee0 100644
--- a/cmd/btrfs-rec/inspect/rebuildtrees/util.go
+++ b/cmd/btrfs-rec/inspect/rebuildtrees/util.go
@@ -1,16 +1,16 @@
-// Copyright (C) 2022  Luke Shumaker <lukeshu@lukeshu.com>
+// Copyright (C) 2022-2023  Luke Shumaker <lukeshu@lukeshu.com>
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-package rebuildnodes
+package rebuildtrees
 
 import (
 	"golang.org/x/exp/constraints"
 
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect"
+	"git.lukeshu.com/btrfs-progs-ng/cmd/btrfs-rec/inspect/rebuildmappings"
 )
 
-func countNodes(nodeScanResults btrfsinspect.ScanDevicesResult) int {
+func countNodes(nodeScanResults rebuildmappings.ScanDevicesResult) int {
 	var cnt int
 	for _, devResults := range nodeScanResults {
 		cnt += len(devResults.FoundNodes)