Merge pull request #2215 from libgit2/rb/submodule-cache-fixes

Improve submodule cache management

1 files changed, 12 insertions, 0 deletions

diff --git a/src/index.c b/src/index.c
index 3fcd21115..b0b5eae9d 100644
--- a/src/index.c
+++ b/src/index.c
@@ -517,6 +517,18 @@ int git_index_read(git_index *index, int force)
 	return error;
 }
 
+int git_index__changed_relative_to(
+	git_index *index, const git_futils_filestamp *fs)
+{
+	/* attempt to update index (ignoring errors) */
+	if (git_index_read(index, false) < 0)
+		giterr_clear();
+
+	return (index->stamp.mtime != fs->mtime ||
+			index->stamp.size != fs->size ||
+			index->stamp.ino != fs->ino);
+}
+
 int git_index_write(git_index *index)
 {
 	git_filebuf file = GIT_FILEBUF_INIT;