summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--diff.c3
-rwxr-xr-xt/t4015-diff-whitespace.sh35
2 files changed, 37 insertions, 1 deletions
diff --git a/diff.c b/diff.c
index 0ce678fc06..998d7ae20c 100644
--- a/diff.c
+++ b/diff.c
@@ -3497,18 +3497,21 @@ static void builtin_diff(const char *name_a,
strbuf_addf(&header, "%s%snew file mode %06o%s\n", line_prefix, meta, two->mode, reset);
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
+ o->found_changes = 1;
must_show_header = 1;
}
else if (lbl[1][0] == '/') {
strbuf_addf(&header, "%s%sdeleted file mode %06o%s\n", line_prefix, meta, one->mode, reset);
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
+ o->found_changes = 1;
must_show_header = 1;
}
else {
if (one->mode != two->mode) {
strbuf_addf(&header, "%s%sold mode %06o%s\n", line_prefix, meta, one->mode, reset);
strbuf_addf(&header, "%s%snew mode %06o%s\n", line_prefix, meta, two->mode, reset);
+ o->found_changes = 1;
must_show_header = 1;
}
if (xfrm_msg)
diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index f3e20dd5bb..02731dccb9 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -1,7 +1,7 @@
#!/bin/sh
#
# Copyright (c) 2006 Johannes E. Schindelin
-#
+# Copyright (c) 2023 Google LLC
test_description='Test special whitespace in diff engine.
@@ -11,6 +11,39 @@ TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-diff.sh
+for opts in --patch --quiet -s
+do
+
+ test_expect_success "status with $opts (different)" '
+ echo foo >x &&
+ git add x &&
+ echo bar >x &&
+ test_expect_code 1 git diff -w $opts --exit-code x
+ '
+
+ test_expect_success POSIXPERM "status with $opts (mode differs)" '
+ test_when_finished "git update-index --chmod=-x x" &&
+ echo foo >x &&
+ git add x &&
+ git update-index --chmod=+x x &&
+ test_expect_code 1 git diff -w $opts --exit-code x
+ '
+
+ test_expect_success "status with $opts (removing an empty file)" '
+ : >x &&
+ git add x &&
+ rm x &&
+ test_expect_code 1 git diff -w $opts --exit-code -- x
+ '
+
+ test_expect_success "status with $opts (different but equivalent)" '
+ echo foo >x &&
+ git add x &&
+ echo " foo" >x &&
+ git diff -w $opts --exit-code x
+ '
+done
+
test_expect_success "Ray Lehtiniemi's example" '
cat <<-\EOF >x &&
do {