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Merge branch 'ld/maint-diff-quiet-w'

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* ld/maint-diff-quiet-w:
  git-diff: add a test for git diff --quiet -w
  git diff --quiet -w: check and report the status
This commit is contained in:
Junio C Hamano 2010-03-02 12:44:10 -08:00
parent 68a4741484 1caaf225f8
commit 36420805a7
2 changed files with 38 additions and 0 deletions
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23
diff.c
View file

@ -3531,6 +3531,29 @@ void diff_flush(struct diff_options *options)
separator++;
}
if (output_format & DIFF_FORMAT_NO_OUTPUT &&
DIFF_OPT_TST(options, EXIT_WITH_STATUS) &&
DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) {
/*
* run diff_flush_patch for the exit status. setting
* options->file to /dev/null should be safe, becaue we
* aren't supposed to produce any output anyway.
*/
if (options->close_file)
fclose(options->file);
options->file = fopen("/dev/null", "w");
if (!options->file)
die_errno("Could not open /dev/null");
options->close_file = 1;
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (check_pair_status(p))
diff_flush_patch(p, options);
if (options->found_changes)
break;
}
}
if (output_format & DIFF_FORMAT_PATCH) {
if (separator) {
putc(options->line_termination, options->file);

15
t/t4017-diff-retval.sh
View file

@ -5,6 +5,9 @@ test_description='Return value of diffs'
. ./test-lib.sh
test_expect_success 'setup' '
echo "1 " >a &&
git add . &&
git commit -m zeroth &&
echo 1 >a &&
git add . &&
git commit -m first &&
@ -13,6 +16,18 @@ test_expect_success 'setup' '
git commit -a -m second
'
test_expect_success 'git diff --quiet -w HEAD^^ HEAD^' '
git diff --quiet -w HEAD^^ HEAD^
'
test_expect_success 'git diff --quiet HEAD^^ HEAD^' '
test_must_fail git diff --quiet HEAD^^ HEAD^
'
test_expect_success 'git diff --quiet -w HEAD^ HEAD' '
test_must_fail git diff --quiet -w HEAD^ HEAD
'
test_expect_success 'git diff-tree HEAD^ HEAD' '
git diff-tree --exit-code HEAD^ HEAD
test $? = 1