#!/bin/sh

setvar test_description = ''commit-msg hook''

source ./test-lib.sh

test_expect_success 'with no hook' '

	echo "foo" > file &&
	git add file &&
	git commit -m "first"

'

# set up fake editor for interactive editing
cat > fake-editor <<< '''
#!/bin/sh
cp FAKE_MSG "$1"
exit 0
'''
chmod +x fake-editor

## Not using test_set_editor here so we can easily ensure the editor variable
## is only set for the editor tests
setvar FAKE_EDITOR = ""$(pwd)/fake-editor""
export FAKE_EDITOR

test_expect_success 'with no hook (editor)' '

	echo "more foo" >> file &&
	git add file &&
	echo "more foo" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit

'

test_expect_success '--no-verify with no hook' '

	echo "bar" > file &&
	git add file &&
	git commit --no-verify -m "bar"

'

test_expect_success '--no-verify with no hook (editor)' '

	echo "more bar" > file &&
	git add file &&
	echo "more bar" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --no-verify

'

# now install hook that always succeeds
setvar HOOKDIR = ""$(git rev-parse --git-dir)/hooks""
setvar HOOK = ""$HOOKDIR/commit-msg""
mkdir -p $HOOKDIR
cat > "$HOOK" <<< """
#!/bin/sh
exit 0
"""
chmod +x $HOOK

test_expect_success 'with succeeding hook' '

	echo "more" >> file &&
	git add file &&
	git commit -m "more"

'

test_expect_success 'with succeeding hook (editor)' '

	echo "more more" >> file &&
	git add file &&
	echo "more more" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit

'

test_expect_success '--no-verify with succeeding hook' '

	echo "even more" >> file &&
	git add file &&
	git commit --no-verify -m "even more"

'

test_expect_success '--no-verify with succeeding hook (editor)' '

	echo "even more more" >> file &&
	git add file &&
	echo "even more more" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --no-verify

'

# now a hook that fails
cat > "$HOOK" <<< """
#!/bin/sh
exit 1
"""

test_expect_success 'with failing hook' '

	echo "another" >> file &&
	git add file &&
	test_must_fail git commit -m "another"

'

test_expect_success 'with failing hook (editor)' '

	echo "more another" >> file &&
	git add file &&
	echo "more another" > FAKE_MSG &&
	! (GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit)

'

test_expect_success '--no-verify with failing hook' '

	echo "stuff" >> file &&
	git add file &&
	git commit --no-verify -m "stuff"

'

test_expect_success '--no-verify with failing hook (editor)' '

	echo "more stuff" >> file &&
	git add file &&
	echo "more stuff" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --no-verify

'

chmod -x $HOOK
test_expect_success POSIXPERM 'with non-executable hook' '

	echo "content" >> file &&
	git add file &&
	git commit -m "content"

'

test_expect_success POSIXPERM 'with non-executable hook (editor)' '

	echo "content again" >> file &&
	git add file &&
	echo "content again" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit -m "content again"

'

test_expect_success POSIXPERM '--no-verify with non-executable hook' '

	echo "more content" >> file &&
	git add file &&
	git commit --no-verify -m "more content"

'

test_expect_success POSIXPERM '--no-verify with non-executable hook (editor)' '

	echo "even more content" >> file &&
	git add file &&
	echo "even more content" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --no-verify

'

# now a hook that edits the commit message
cat > "$HOOK" <<< '''
#!/bin/sh
echo "new message" > "$1"
exit 0
'''
chmod +x $HOOK

proc commit_msg_is {
	test $(git log --pretty=format:%s%b -1) = $1
}

test_expect_success 'hook edits commit message' '

	echo "additional" >> file &&
	git add file &&
	git commit -m "additional" &&
	commit_msg_is "new message"

'

test_expect_success 'hook edits commit message (editor)' '

	echo "additional content" >> file &&
	git add file &&
	echo "additional content" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit &&
	commit_msg_is "new message"

'

test_expect_success "hook doesn't edit commit message" '

	echo "plus" >> file &&
	git add file &&
	git commit --no-verify -m "plus" &&
	commit_msg_is "plus"

'

test_expect_success "hook doesn't edit commit message (editor)" '

	echo "more plus" >> file &&
	git add file &&
	echo "more plus" > FAKE_MSG &&
	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --no-verify &&
	commit_msg_is "more plus"

'

test_done