completion: extract repository discovery from __gitdir()

diff --git a/diff.c b/diff.c
index f08cd8e033d104253a4b120f70cb188e39ef9aee..d91a344908abe7335eaffef4157fc59fefdf3815 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -3015,7 +3015,7 @@ static struct diff_tempfile *prepare_temp_file(const char *name,
                        if (!one->oid_valid)
                                sha1_to_hex_r(temp->hex, null_sha1);
                        else
-                               sha1_to_hex_r(temp->hex, one->oid.hash);
+                               oid_to_hex_r(temp->hex, &one->oid);
                        /* Even though we may sometimes borrow the
                         * contents from the work tree, we always want
                         * one->mode.  mode is trustworthy even when