apply --recount: allow "no-op hunks"
When editing patches e.g. in `git add -e`, it is quite common that a
hunk ends up having no -/+ lines, i.e. it is now supposed to do nothing.
This use case was broken by ad6e8ed37bc1 (apply: reject a hunk that does
not do anything, 2015-06-01) with the good intention of catching a very
real, different issue in hand-edited patches.
So let's use the `--recount` option as the tell-tale whether the user
would actually be okay with no-op hunks.
Add a test case to make sure that this use case does not regress again.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t4136-apply-check.sh b/t/t4136-apply-check.sh
index 6d92872..4c3f264 100755
--- a/t/t4136-apply-check.sh
+++ b/t/t4136-apply-check.sh
@@ -29,6 +29,18 @@
test_must_fail git apply --check input
'
+test_expect_success '`apply --recount` allows no-op patch' '
+ echo 1 >1 &&
+ git apply --recount --check <<-\EOF
+ diff --get a/1 b/1
+ index 6696ea4..606eddd 100644
+ --- a/1
+ +++ b/1
+ @@ -1,1 +1,1 @@
+ 1
+ EOF
+'
+
test_expect_success 'invalid combination: create and copy' '
test_must_fail git apply --check - <<-\EOF
diff --git a/1 b/2
