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-rw-r--r--unpack-trees.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/unpack-trees.c b/unpack-trees.c
index eb8fcda31b..9af8e796b3 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -1612,8 +1612,8 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
o->merge_size = len;
mark_all_ce_unused(o->src_index);
- if (o->src_index->fsmonitor_last_update)
- o->result.fsmonitor_last_update = o->src_index->fsmonitor_last_update;
+ o->result.fsmonitor_last_update =
+ xstrdup_or_null(o->src_index->fsmonitor_last_update);
/*
* Sparse checkout loop #1: set NEW_SKIP_WORKTREE on existing entries
@@ -2563,3 +2563,25 @@ int oneway_merge(const struct cache_entry * const *src,
}
return merged_entry(a, old, o);
}
+
+/*
+ * Merge worktree and untracked entries in a stash entry.
+ *
+ * Ignore all index entries. Collapse remaining trees but make sure that they
+ * don't have any conflicting files.
+ */
+int stash_worktree_untracked_merge(const struct cache_entry * const *src,
+ struct unpack_trees_options *o)
+{
+ const struct cache_entry *worktree = src[1];
+ const struct cache_entry *untracked = src[2];
+
+ if (o->merge_size != 2)
+ BUG("invalid merge_size: %d", o->merge_size);
+
+ if (worktree && untracked)
+ return error(_("worktree and untracked commit have duplicate entries: %s"),
+ super_prefixed(worktree->name));
+
+ return merged_entry(worktree ? worktree : untracked, NULL, o);
+}