Merge branch 'jk/diff-from-contents-fix'

Recently we attempted to improve "git diff -w" and friends to
handle cases where patch output would be suppressed, but it
introduced a bug that emits unnecessary output, which has been
corrected.

* jk/diff-from-contents-fix:
  diff: restore redirection to /dev/null for diff_from_contents
main
Junio C Hamano 2025-10-24 09:10:37 -07:00
commit 88b3704ab1
2 changed files with 13 additions and 0 deletions

9
diff.c
View File

@ -6890,6 +6890,15 @@ void diff_flush(struct diff_options *options)
if (output_format & DIFF_FORMAT_NO_OUTPUT &&
options->flags.exit_with_status &&
options->flags.diff_from_contents) {
/*
* run diff_flush_patch for the exit status. setting
* options->file to /dev/null should be safe, because we
* aren't supposed to produce any output anyway.
*/
diff_free_file(options);
options->file = xfopen("/dev/null", "w");
options->close_file = 1;
options->color_moved = 0;
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (check_pair_status(p))

View File

@ -50,6 +50,10 @@ test_expect_success 'git diff-tree HEAD HEAD' '
test_expect_code 0 git diff-tree --quiet HEAD HEAD >cnt &&
test_line_count = 0 cnt
'
test_expect_success 'git diff-tree -w HEAD^ HEAD' '
test_expect_code 1 git diff-tree --quiet -w HEAD^ HEAD >cnt &&
test_line_count = 0 cnt
'
test_expect_success 'git diff-files' '
test_expect_code 0 git diff-files --quiet >cnt &&
test_line_count = 0 cnt