From 2b459b483cb264d3e9a39cd7857da2ccab08179f Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Sun, 2 Mar 2008 00:07:59 -0800 Subject: [PATCH] diff: make sure work tree side is shown as 0{40} when different Ping Yin noticed that "git diff-index --raw" shows 0{40} when work tree has submodule difference, but "git diff --raw" didn't correctly do so. There was a mistake in the diffcore_skip_stat_unmatch() that was meant to clean up the stat-only difference for running diff between the index and work tree and diff between the tree and the work tree, to cause it re-read from the submodule repository HEAD. When ce_stat_match() says work tree is different, we should always say 0{40} on the work tree side. This patch fixes the issue, and adds tests. Signed-off-by: Junio C Hamano --- diff.c | 7 ++---- t/t4027-diff-submodule.sh | 53 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 5 deletions(-) create mode 100755 t/t4027-diff-submodule.sh diff --git a/diff.c b/diff.c index b80f656fb..00e1590c6 100644 --- a/diff.c +++ b/diff.c @@ -3187,11 +3187,8 @@ static void diffcore_apply_filter(const char *filter) static int diff_filespec_is_identical(struct diff_filespec *one, struct diff_filespec *two) { - if (S_ISGITLINK(one->mode)) { - diff_fill_sha1_info(one); - diff_fill_sha1_info(two); - return !hashcmp(one->sha1, two->sha1); - } + if (S_ISGITLINK(one->mode)) + return 0; if (diff_populate_filespec(one, 0)) return 0; if (diff_populate_filespec(two, 0)) diff --git a/t/t4027-diff-submodule.sh b/t/t4027-diff-submodule.sh new file mode 100755 index 000000000..3d2d0816a --- /dev/null +++ b/t/t4027-diff-submodule.sh @@ -0,0 +1,53 @@ +#!/bin/sh + +test_description='difference in submodules' + +. ./test-lib.sh +. ../diff-lib.sh + +_z40=0000000000000000000000000000000000000000 +test_expect_success setup ' + test_tick && + test_create_repo sub && + ( + cd sub && + echo hello >world && + git add world && + git commit -m submodule + ) && + + test_tick && + echo frotz >nitfol && + git add nitfol sub && + git commit -m superproject && + + ( + cd sub && + echo goodbye >world && + git add world && + git commit -m "submodule #2" + ) && + + set x $( + cd sub && + git rev-list HEAD + ) && + echo ":160000 160000 $3 $_z40 M sub" >expect +' + +test_expect_success 'git diff --raw HEAD' ' + git diff --raw --abbrev=40 HEAD >actual && + diff -u expect actual +' + +test_expect_success 'git diff-index --raw HEAD' ' + git diff-index --raw HEAD >actual.index && + diff -u expect actual.index +' + +test_expect_success 'git diff-files --raw' ' + git diff-files --raw >actual.files && + diff -u expect actual.files +' + +test_done -- 2.26.2