Don't change parent entries for moves within the same directory

This commit is contained in:
Antonio Scandurra 2021-04-19 13:00:13 +02:00
parent f29c42904e
commit 2c72f9c14f

View file

@ -252,7 +252,7 @@ impl Snapshot {
Ok(path)
}
fn reparent_entry(
fn move_entry(
&mut self,
child_inode: u64,
new_path: Option<&Path>,
@ -271,11 +271,13 @@ impl Snapshot {
// Remove the entries from the sum tree.
deletions.push(Edit::Remove(child_inode));
if let Some(old_parent_inode) = old_parent_inode {
deletions.push(Edit::Remove(old_parent_inode));
}
if let Some(new_parent_inode) = new_parent_inode {
deletions.push(Edit::Remove(new_parent_inode));
if old_parent_inode != new_parent_inode {
if let Some(old_parent_inode) = old_parent_inode {
deletions.push(Edit::Remove(old_parent_inode));
}
if let Some(new_parent_inode) = new_parent_inode {
deletions.push(Edit::Remove(new_parent_inode));
}
}
let removed_entries = self.entries.edit(deletions);
let mut child_entry = None;
@ -292,7 +294,7 @@ impl Snapshot {
}
// Update the child entry's parent.
let mut child_entry = child_entry.expect("cannot reparent non-existent entry");
let mut child_entry = child_entry.expect("cannot move non-existent entry");
child_entry.set_parent(new_parent_inode);
if let Some(new_path) = new_path {
let new_path = new_path.strip_prefix(self.path.parent().unwrap()).unwrap();
@ -313,8 +315,8 @@ impl Snapshot {
}
// Descendant directories don't need to be mutated because their properties
// haven't changed, so only re-insert this directory if it is the entry we
// were reparenting.
// haven't changed, so only re-insert this directory if it is the top entry
// we were moving.
if *inode == child_inode {
insertions.push(Edit::Insert(entry));
}
@ -805,7 +807,7 @@ impl BackgroundScanner {
// If it does not match, then detach this inode from its current parent, and
// record that it may have been removed from the worktree.
snapshot.reparent_entry(snapshot_inode, None, snapshot_parent_inode, None);
snapshot.move_entry(snapshot_inode, None, snapshot_parent_inode, None);
possible_removed_inodes.insert(snapshot_inode);
}
@ -814,7 +816,7 @@ impl BackgroundScanner {
// the filesystem.
if let Some(snapshot_entry_for_inode) = snapshot.entries.get(&fs_inode) {
let snapshot_parent_inode = snapshot_entry_for_inode.parent();
snapshot.reparent_entry(
snapshot.move_entry(
fs_inode,
Some(&path),
snapshot_parent_inode,
@ -835,7 +837,7 @@ impl BackgroundScanner {
}
snapshot.entries.insert(fs_entry.clone());
snapshot.reparent_entry(fs_inode, None, None, fs_parent_inode);
snapshot.move_entry(fs_inode, None, None, fs_parent_inode);
if fs_entry.is_dir() {
let relative_path = snapshot
@ -862,7 +864,7 @@ impl BackgroundScanner {
if let Some(snapshot_entry) = snapshot_entry {
let snapshot_inode = snapshot_entry.inode();
let snapshot_parent_inode = snapshot_entry.parent();
snapshot.reparent_entry(snapshot_inode, None, snapshot_parent_inode, None);
snapshot.move_entry(snapshot_inode, None, snapshot_parent_inode, None);
possible_removed_inodes.insert(snapshot_inode);
}
}