Fix panic in recursive cache (#16298)

There is a bug with last commit cache recursive cache where the last
commit information that refers to the current tree itself will cause a
panic due to its path ("") not being included in the expected tree entry
paths.

This PR fixes this by skipping the missing entry.

Fix #16290

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
This commit is contained in:
zeripath 2021-06-29 21:12:43 +01:00 committed by GitHub
parent 653704c102
commit add74fb368
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@ -94,7 +94,8 @@ func (c *LastCommitCache) recursiveCache(ctx context.Context, commit *Commit, tr
if err := c.Put(commit.ID.String(), path.Join(treePath, entry), entryCommit.ID.String()); err != nil { if err := c.Put(commit.ID.String(), path.Join(treePath, entry), entryCommit.ID.String()); err != nil {
return err return err
} }
if entryMap[entry].IsDir() { // entryMap won't contain "" therefore skip this.
if treeEntry := entryMap[entry]; treeEntry != nil && treeEntry.IsDir() {
subTree, err := tree.SubTree(entry) subTree, err := tree.SubTree(entry)
if err != nil { if err != nil {
return err return err