[PATCH 03/19] tree-diff: no need to manually verify that there is no mode change for a path
From: Kirill Smelkov <hidden>
Date: 2016-06-15 22:59:59
Subsystem:
the rest · Maintainer:
Linus Torvalds
Because if there is, such two tree entries would never be compared as equal - the code in base_name_compare() explicitly compares modes, if there is a change for dir bit, even for equal paths, entries would compare as different. The code I'm removing here is from 2005 April 262e82b4 (Fix diff-tree recursion), which pre-dates base_name_compare() introduction in 958ba6c9 (Introduce "base_name_compare()" helper function) by a month. Signed-off-by: Kirill Smelkov <redacted> Signed-off-by: Junio C Hamano <redacted> --- ( re-posting without change ) tree-diff.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/tree-diff.c b/tree-diff.c
index 11c3550..5810b00 100644
--- a/tree-diff.c
+++ b/tree-diff.c@@ -23,6 +23,11 @@ static int compare_tree_entry(struct tree_desc *t1, struct tree_desc *t2, pathlen1 = tree_entry_len(&t1->entry); pathlen2 = tree_entry_len(&t2->entry); + + /* + * NOTE files and directories *always* compare differently, + * even when having the same name. + */ cmp = base_name_compare(path1, pathlen1, mode1, path2, pathlen2, mode2); if (cmp < 0) { show_entry(opt, "-", t1, base);
@@ -35,16 +40,6 @@ static int compare_tree_entry(struct tree_desc *t1, struct tree_desc *t2, if (!DIFF_OPT_TST(opt, FIND_COPIES_HARDER) && !hashcmp(sha1, sha2) && mode1 == mode2) return 0; - /* - * If the filemode has changed to/from a directory from/to a regular - * file, we need to consider it a remove and an add. - */ - if (S_ISDIR(mode1) != S_ISDIR(mode2)) { - show_entry(opt, "-", t1, base); - show_entry(opt, "+", t2, base); - return 0; - } - strbuf_add(base, path1, pathlen1); if (DIFF_OPT_TST(opt, RECURSIVE) && S_ISDIR(mode1)) { if (DIFF_OPT_TST(opt, TREE_IN_RECURSIVE)) {
--
1.9.rc1.181.g641f458