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drive: fix DirMove leaving a hardlinked directory behind #2245

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This bug was introduced by the v3 API conversion in 07f20dd1fd.

The problem was that dircache.FindPath doesn't work for the root directory.

This adds an internal error for dircache.FindPath being called with
the root directory.  This makes a failing test, which the fix to the
drive backend fixes.

This also improves the DirCache integration test.
This commit is contained in:
Nick Craig-Wood 2018-04-14 17:15:00 +01:00
parent 29ce1c2747
commit 3d5106e52b
3 changed files with 37 additions and 5 deletions
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6
lib/dircache/dircache.go
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@ -204,8 +204,14 @@ func (dc *DirCache) _findDir(path string, create bool) (pathID string, err error
// FindPath finds the leaf and directoryID from a path
//
// Do not call FindPath with the root directory - it will return an error
//
// If create is set parent directories will be created if they don't exist
func (dc *DirCache) FindPath(path string, create bool) (leaf, directoryID string, err error) {
if path == "" {
err = errors.New("internal error: can't call FindPath with root directory")
return
}
dc.mu.Lock()
defer dc.mu.Unlock()
directory, leaf := SplitPath(path)