TheArchive/restic
1
0
Fork 0
mirror of https://github.com/restic/restic.git synced 2025-08-21 10:57:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

walk: Pass parent tree ID to WalkFunc

Browse Source
This commit is contained in:
Alexander Neumann
2018-08-19 12:28:06 +02:00
committed by Mikael Berthe
parent 1f27d17c0d
commit 15ad0e5bc7
5 changed files with 80 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
internal/walker/walker.go
View File

@@ -33,14 +33,14 @@ var SkipNode = errors.New("skip this node")
// tree have ignore set to true, the current tree will not be visited again.
// When err is not nil and different from SkipNode, the value returned for
// ignore is ignored.
type WalkFunc func(path string, node *restic.Node, parentTreeID string, nodeErr error) (ignore bool, err error)
type WalkFunc func(parentTreeID restic.ID, path string, node *restic.Node, nodeErr error) (ignore bool, err error)
// Walk calls walkFn recursively for each node in root. If walkFn returns an
// error, it is passed up the call stack. The trees in ignoreTrees are not
// walked. If walkFn ignores trees, these are added to the set.
func Walk(ctx context.Context, repo TreeLoader, root restic.ID, ignoreTrees restic.IDSet, walkFn WalkFunc) error {
tree, err := repo.LoadTree(ctx, root)
_, err = walkFn("/", nil, "", err)
_, err = walkFn(root, "/", nil, err)
if err != nil {
if err == SkipNode {
@@ -53,14 +53,14 @@ func Walk(ctx context.Context, repo TreeLoader, root restic.ID, ignoreTrees rest
ignoreTrees = restic.NewIDSet()
}
_, err = walk(ctx, repo, "/", root.String(), tree, ignoreTrees, walkFn)
_, err = walk(ctx, repo, "/", root, tree, ignoreTrees, walkFn)
return err
}
// walk recursively traverses the tree, ignoring subtrees when the ID of the
// subtree is in ignoreTrees. If err is nil and ignore is true, the subtree ID
// will be added to ignoreTrees by walk.
func walk(ctx context.Context, repo TreeLoader, prefix string, treeID string, tree *restic.Tree, ignoreTrees restic.IDSet, walkFn WalkFunc) (ignore bool, err error) {
func walk(ctx context.Context, repo TreeLoader, prefix string, parentTreeID restic.ID, tree *restic.Tree, ignoreTrees restic.IDSet, walkFn WalkFunc) (ignore bool, err error) {
var allNodesIgnored = true
if len(tree.Nodes) == 0 {
@@ -79,7 +79,7 @@ func walk(ctx context.Context, repo TreeLoader, prefix string, treeID string, tr
}
if node.Type != "dir" {
ignore, err := walkFn(p, node, treeID, nil)
ignore, err := walkFn(parentTreeID, p, node, nil)
if err != nil {
if err == SkipNode {
// skip the remaining entries in this tree
@@ -105,7 +105,7 @@ func walk(ctx context.Context, repo TreeLoader, prefix string, treeID string, tr
}
subtree, err := repo.LoadTree(ctx, *node.Subtree)
ignore, err := walkFn(p, node, treeID, err)
ignore, err := walkFn(parentTreeID, p, node, err)
if err != nil {
if err == SkipNode {
if ignore {
@@ -124,7 +124,7 @@ func walk(ctx context.Context, repo TreeLoader, prefix string, treeID string, tr
allNodesIgnored = false
}
ignore, err = walk(ctx, repo, p, node.Subtree.String(), subtree, ignoreTrees, walkFn)
ignore, err = walk(ctx, repo, p, *node.Subtree, subtree, ignoreTrees, walkFn)
if err != nil {
return false, err
}