#!/bin/sh
#
# Copyright (c) 2007 Steven Grimm
#

test_description='git commit

Tests for selected commit options.'

. ./test-lib.sh

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

# A sanity check to see if commit is working at all.
test_expect_success 'a basic commit in an empty tree should succeed' '
        echo content > foo &&
        git add foo &&
        git commit -m "initial commit"
'

test_expect_success 'nonexistent template file should return error' '
        echo changes >> foo &&
        git add foo &&
        test_must_fail git commit --template "$PWD"/notexist
'

test_expect_success 'nonexistent template file in config should return error' '
        git config commit.template "$PWD"/notexist &&
        test_must_fail git commit &&
        git config --unset commit.template
'

# From now on we'll use a template file that exists.
TEMPLATE="$PWD"/template

test_expect_success 'unedited template should not commit' '
        echo "template line" > "$TEMPLATE" &&
        test_must_fail git commit --template "$TEMPLATE"
'

test_expect_success 'unedited template with comments should not commit' '
        echo "# comment in template" >> "$TEMPLATE" &&
        test_must_fail git commit --template "$TEMPLATE"
'

test_expect_success 'a Signed-off-by line by itself should not commit' '
        (
                test_set_editor "$TEST_DIRECTORY"/t7500/add-signed-off &&
                test_must_fail git commit --template "$TEMPLATE"
        )
'

test_expect_success 'adding comments to a template should not commit' '
        (
                test_set_editor "$TEST_DIRECTORY"/t7500/add-comments &&
                test_must_fail git commit --template "$TEMPLATE"
        )
'

test_expect_success 'adding real content to a template should commit' '
        (
                test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
                git commit --template "$TEMPLATE"
        ) &&
        commit_msg_is "template linecommit message"
'

test_expect_success '-t option should be short for --template' '
        echo "short template" > "$TEMPLATE" &&
        echo "new content" >> foo &&
        git add foo &&
        (
                test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
                git commit -t "$TEMPLATE"
        ) &&
        commit_msg_is "short templatecommit message"
'

test_expect_success 'config-specified template should commit' '
        echo "new template" > "$TEMPLATE" &&
        git config commit.template "$TEMPLATE" &&
        echo "more content" >> foo &&
        git add foo &&
        (
                test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
                git commit
        ) &&
        git config --unset commit.template &&
        commit_msg_is "new templatecommit message"
'

test_expect_success 'explicit commit message should override template' '
        echo "still more content" >> foo &&
        git add foo &&
        GIT_EDITOR="$TEST_DIRECTORY"/t7500/add-content git commit --template "$TEMPLATE" \
                -m "command line msg" &&
        commit_msg_is "command line msg"
'

test_expect_success 'commit message from file should override template' '
        echo "content galore" >> foo &&
        git add foo &&
        echo "standard input msg" |
        (
                test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
                git commit --template "$TEMPLATE" --file -
        ) &&
        commit_msg_is "standard input msg"
'

test_expect_success 'using alternate GIT_INDEX_FILE (1)' '

        cp .git/index saved-index &&
        (
                echo some new content >file &&
                GIT_INDEX_FILE=.git/another_index &&
                export GIT_INDEX_FILE &&
                git add file &&
                git commit -m "commit using another index" &&
                git diff-index --exit-code HEAD &&
                git diff-files --exit-code
        ) &&
        cmp .git/index saved-index >/dev/null

'

test_expect_success 'using alternate GIT_INDEX_FILE (2)' '

        cp .git/index saved-index &&
        (
                rm -f .git/no-such-index &&
                GIT_INDEX_FILE=.git/no-such-index &&
                export GIT_INDEX_FILE &&
                git commit -m "commit using nonexistent index" &&
                test -z "$(git ls-files)" &&
                test -z "$(git ls-tree HEAD)"

        ) &&
        cmp .git/index saved-index >/dev/null
'

cat > expect << EOF
zort

Signed-off-by: C O Mitter <committer@example.com>
EOF

test_expect_success '--signoff' '
        echo "yet another content *narf*" >> foo &&
        echo "zort" | git commit -s -F - foo &&
        git cat-file commit HEAD | sed "1,/^\$/d" > output &&
        test_cmp expect output
'

test_expect_success 'commit message from file (1)' '
        mkdir subdir &&
        echo "Log in top directory" >log &&
        echo "Log in sub directory" >subdir/log &&
        (
                cd subdir &&
                git commit --allow-empty -F log
        ) &&
        commit_msg_is "Log in sub directory"
'

test_expect_success 'commit message from file (2)' '
        rm -f log &&
        echo "Log in sub directory" >subdir/log &&
        (
                cd subdir &&
                git commit --allow-empty -F log
        ) &&
        commit_msg_is "Log in sub directory"
'

test_expect_success 'commit message from stdin' '
        (
                cd subdir &&
                echo "Log with foo word" | git commit --allow-empty -F -
        ) &&
        commit_msg_is "Log with foo word"
'

test_expect_success 'commit -F overrides -t' '
        (
                cd subdir &&
                echo "-F log" > f.log &&
                echo "-t template" > t.template &&
                git commit --allow-empty -F f.log -t t.template
        ) &&
        commit_msg_is "-F log"
'

test_expect_success 'Commit without message is allowed with --allow-empty-message' '
        echo "more content" >>foo &&
        git add foo &&
        >empty &&
        git commit --allow-empty-message <empty &&
        commit_msg_is ""
'

test_expect_success 'Commit without message is no-no without --allow-empty-message' '
        echo "more content" >>foo &&
        git add foo &&
        >empty &&
        test_must_fail git commit <empty
'

test_expect_success 'Commit a message with --allow-empty-message' '
        echo "even more content" >>foo &&
        git add foo &&
        git commit --allow-empty-message -m"hello there" &&
        commit_msg_is "hello there"
'

test_done