#!/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_failure '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_failure 'diff in message is retained with -v' '
        git commit --amend -F diff -v &&
        check_message diff
'

test_done