git/t/t7507-commit-verbose.sh
Jens Lehmann 1a72cfd7fa commit -v: strip diffs and submodule shortlogs from the commit message
When using the '-v' option of "git commit" the diff added to the commit
message temporarily for editing is stripped off after the user exited the
editor by searching for "\ndiff --git " and truncating the commmit message
there if it is found.

But this approach has two problems:

- when the commit message itself contains a line starting with
  "diff --git" it will be truncated there prematurely; and

- when the "diff.submodule" setting is set to "log", the diff may
  start with "Submodule <hash1>..<hash2>", which will be left in
  the commit message while it shouldn't.

Fix that by introducing a special scissor separator line starting with the
comment character ('#' or the core.commentChar config if set) followed by
two lines describing what it is for. The scissor line - which will not be
translated - is used to reliably detect the start of the diff so it can be
chopped off from the commit message, no matter what the user enters there.

Turn a known test failure fixed by this change into a successful test;
also add one for a diff starting with a submodule log and another one for
proper handling of the comment char.

Reported-by: Ari Pollak <ari@debian.org>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-05 14:39:11 -08:00

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#!/bin/sh
test_description='verbose commit template'
. ./test-lib.sh
cat >check-for-diff <<EOF
#!$SHELL_PATH
exec grep '^diff --git' "\$1"
EOF
chmod +x check-for-diff
test_set_editor "$PWD/check-for-diff"
cat >message <<'EOF'
subject
body
EOF
test_expect_success 'setup' '
echo content >file &&
git add file &&
git commit -F message
'
test_expect_success 'initial commit shows verbose diff' '
git commit --amend -v
'
test_expect_success 'second commit' '
echo content modified >file &&
git add file &&
git commit -F message
'
check_message() {
git log -1 --pretty=format:%s%n%n%b >actual &&
test_cmp "$1" actual
}
test_expect_success 'verbose diff is stripped out' '
git commit --amend -v &&
check_message message
'
test_expect_success 'verbose diff is stripped out (mnemonicprefix)' '
git config diff.mnemonicprefix true &&
git commit --amend -v &&
check_message message
'
cat >diff <<'EOF'
This is an example commit message that contains a diff.
diff --git c/file i/file
new file mode 100644
index 0000000..f95c11d
--- /dev/null
+++ i/file
@@ -0,0 +1 @@
+this is some content
EOF
test_expect_success 'diff in message is retained without -v' '
git commit --amend -F diff &&
check_message diff
'
test_expect_success 'diff in message is retained with -v' '
git commit --amend -F diff -v &&
check_message diff
'
test_expect_success 'submodule log is stripped out too with -v' '
git config diff.submodule log &&
git submodule add ./. sub &&
git commit -m "sub added" &&
(
cd sub &&
echo "more" >>file &&
git commit -a -m "submodule commit"
) &&
(
GIT_EDITOR=cat &&
export GIT_EDITOR &&
test_must_fail git commit -a -v 2>err
) &&
test_i18ngrep "Aborting commit due to empty commit message." err
'
test_expect_success 'verbose diff is stripped out with set core.commentChar' '
(
GIT_EDITOR=cat &&
export GIT_EDITOR &&
test_must_fail git -c core.commentchar=";" commit -a -v 2>err
) &&
test_i18ngrep "Aborting commit due to empty commit message." err
'
test_done