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authorNguyễn Thái Ngọc Duy <pclouds@gmail.com>2009-08-11 22:43:59 +0700
committerJunio C Hamano <gitster@pobox.com>2009-08-11 23:17:55 -0700
commit540e694b139dd034b21de087001ac9b6d7606c94 (patch)
treeab97ba665dacaaa23ee3906d76fc1396163e6601
parentefd17968387482f5765a969813707629b85bf74f (diff)
downloadgit-540e694b139dd034b21de087001ac9b6d7606c94.tar.gz
git-540e694b139dd034b21de087001ac9b6d7606c94.tar.xz
Prevent diff machinery from examining assume-unchanged entries on worktree
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--diff-lib.c6
-rwxr-xr-xt/t4039-diff-assume-unchanged.sh31
2 files changed, 35 insertions, 2 deletions
diff --git a/diff-lib.c b/diff-lib.c
index ad2a4cde7..22da66ef1 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -162,7 +162,8 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
if (ce_uptodate(ce))
continue;
- changed = check_removed(ce, &st);
+ /* If CE_VALID is set, don't look at workdir for file removal */
+ changed = (ce->ce_flags & CE_VALID) ? 0 : check_removed(ce, &st);
if (changed) {
if (changed < 0) {
perror(ce->name);
@@ -337,6 +338,8 @@ static void do_oneway_diff(struct unpack_trees_options *o,
struct rev_info *revs = o->unpack_data;
int match_missing, cached;
+ /* if the entry is not checked out, don't examine work tree */
+ cached = o->index_only || (idx && (idx->ce_flags & CE_VALID));
/*
* Backward compatibility wart - "diff-index -m" does
* not mean "do not ignore merges", but "match_missing".
@@ -344,7 +347,6 @@ static void do_oneway_diff(struct unpack_trees_options *o,
* But with the revision flag parsing, that's found in
* "!revs->ignore_merges".
*/
- cached = o->index_only;
match_missing = !revs->ignore_merges;
if (cached && idx && ce_stage(idx)) {
diff --git a/t/t4039-diff-assume-unchanged.sh b/t/t4039-diff-assume-unchanged.sh
new file mode 100755
index 000000000..9d9498bd9
--- /dev/null
+++ b/t/t4039-diff-assume-unchanged.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+test_description='diff with assume-unchanged entries'
+
+. ./test-lib.sh
+
+# external diff has been tested in t4020-diff-external.sh
+
+test_expect_success 'setup' '
+ echo zero > zero &&
+ git add zero &&
+ git commit -m zero &&
+ echo one > one &&
+ echo two > two &&
+ git add one two &&
+ git commit -m onetwo &&
+ git update-index --assume-unchanged one &&
+ echo borked >> one &&
+ test "$(git ls-files -v one)" = "h one"
+'
+
+test_expect_success 'diff-index does not examine assume-unchanged entries' '
+ git diff-index HEAD^ -- one | grep -q 5626abf0f72e58d7a153368ba57db4c673c0e171
+'
+
+test_expect_success 'diff-files does not examine assume-unchanged entries' '
+ rm one &&
+ test -z "$(git diff-files -- one)"
+'
+
+test_done