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-rw-r--r--commit-tree.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/commit-tree.c b/commit-tree.c
index b60299f..4634b50 100644
--- a/commit-tree.c
+++ b/commit-tree.c
@@ -91,6 +91,8 @@ int main(int argc, char **argv)
if (argc < 2 || get_sha1_hex(argv[1], tree_sha1) < 0)
usage(commit_tree_usage);
+ setup_git_directory();
+
check_valid(tree_sha1, "tree");
for (i = 2; i < argc; i += 2) {
char *a, *b;