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076cbd6341
When we pick another commit's message, we die() immediately
if we find that it's empty and we are not going to run an
editor (i.e., when running "-C" instead of "-c"). However,
this check is redundant and harmful.
It's redundant because we will already notice the empty
message later, after we would have run the editor, and die
there (just as we would for a regular, not "-C" case, where
the user provided an empty message in the editor).
It's harmful for a few reasons:
1. It does not respect --allow-empty-message. As a result,
a "git rebase -i" cannot "pick" such a commit. So you
cannot even go back in time to fix it with a "reword"
or "edit" instruction.
2. It does not take into account other ways besides the
editor to modify the message. For example, "git commit
-C empty-commit -m foo" could take the author
information from empty-commit, but add a message to it.
There's more to do to make that work correctly (and
right now we explicitly forbid "-C with -m"), but this
removes one roadblock.
3. The existing check is not enough to prevent segfaults.
We try to find the "\n\n" header/body boundary in the
commit. If it is at the end of the string (i.e., no
body), _or_ if we cannot find it at all (i.e., a
truncated commit object), we consider the message
empty. With "-C", that's OK; we die in either case. But
with "-c", we continue on, and in the case of a
truncated commit may end up dereferencing NULL+2.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
332 lines
8.6 KiB
Bash
Executable file
332 lines
8.6 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2007 Steven Grimm
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#
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test_description='git commit
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Tests for selected commit options.'
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. ./test-lib.sh
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commit_msg_is () {
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expect=commit_msg_is.expect
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actual=commit_msg_is.actual
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printf "%s" "$(git log --pretty=format:%s%b -1)" >"$actual" &&
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printf "%s" "$1" >"$expect" &&
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test_i18ncmp "$expect" "$actual"
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}
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# A sanity check to see if commit is working at all.
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test_expect_success 'a basic commit in an empty tree should succeed' '
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echo content > foo &&
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git add foo &&
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git commit -m "initial commit"
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'
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test_expect_success 'nonexistent template file should return error' '
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echo changes >> foo &&
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git add foo &&
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(
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GIT_EDITOR="echo hello >\"\$1\"" &&
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export GIT_EDITOR &&
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test_must_fail git commit --template "$PWD"/notexist
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)
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'
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test_expect_success 'nonexistent template file in config should return error' '
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test_config commit.template "$PWD"/notexist &&
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(
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GIT_EDITOR="echo hello >\"\$1\"" &&
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export GIT_EDITOR &&
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test_must_fail git commit
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)
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'
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# From now on we'll use a template file that exists.
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TEMPLATE="$PWD"/template
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test_expect_success 'unedited template should not commit' '
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echo "template line" > "$TEMPLATE" &&
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test_must_fail git commit --template "$TEMPLATE"
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'
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test_expect_success 'unedited template with comments should not commit' '
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echo "# comment in template" >> "$TEMPLATE" &&
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test_must_fail git commit --template "$TEMPLATE"
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'
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test_expect_success 'a Signed-off-by line by itself should not commit' '
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(
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test_set_editor "$TEST_DIRECTORY"/t7500/add-signed-off &&
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test_must_fail git commit --template "$TEMPLATE"
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)
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'
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test_expect_success 'adding comments to a template should not commit' '
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(
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test_set_editor "$TEST_DIRECTORY"/t7500/add-comments &&
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test_must_fail git commit --template "$TEMPLATE"
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)
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'
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test_expect_success 'adding real content to a template should commit' '
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(
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test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
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git commit --template "$TEMPLATE"
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) &&
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commit_msg_is "template linecommit message"
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'
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test_expect_success '-t option should be short for --template' '
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echo "short template" > "$TEMPLATE" &&
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echo "new content" >> foo &&
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git add foo &&
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(
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test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
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git commit -t "$TEMPLATE"
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) &&
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commit_msg_is "short templatecommit message"
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'
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test_expect_success 'config-specified template should commit' '
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echo "new template" > "$TEMPLATE" &&
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test_config commit.template "$TEMPLATE" &&
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echo "more content" >> foo &&
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git add foo &&
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(
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test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
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git commit
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) &&
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commit_msg_is "new templatecommit message"
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'
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test_expect_success 'explicit commit message should override template' '
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echo "still more content" >> foo &&
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git add foo &&
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GIT_EDITOR="$TEST_DIRECTORY"/t7500/add-content git commit --template "$TEMPLATE" \
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-m "command line msg" &&
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commit_msg_is "command line msg"
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'
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test_expect_success 'commit message from file should override template' '
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echo "content galore" >> foo &&
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git add foo &&
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echo "standard input msg" |
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(
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test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
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git commit --template "$TEMPLATE" --file -
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) &&
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commit_msg_is "standard input msg"
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'
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cat >"$TEMPLATE" <<\EOF
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### template
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EOF
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test_expect_success 'commit message from template with whitespace issue' '
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echo "content galore" >>foo &&
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git add foo &&
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GIT_EDITOR="$TEST_DIRECTORY"/t7500/add-whitespaced-content git commit \
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--template "$TEMPLATE" &&
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commit_msg_is "commit message"
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'
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test_expect_success 'using alternate GIT_INDEX_FILE (1)' '
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cp .git/index saved-index &&
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(
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echo some new content >file &&
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GIT_INDEX_FILE=.git/another_index &&
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export GIT_INDEX_FILE &&
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git add file &&
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git commit -m "commit using another index" &&
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git diff-index --exit-code HEAD &&
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git diff-files --exit-code
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) &&
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cmp .git/index saved-index >/dev/null
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'
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test_expect_success 'using alternate GIT_INDEX_FILE (2)' '
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cp .git/index saved-index &&
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(
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rm -f .git/no-such-index &&
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GIT_INDEX_FILE=.git/no-such-index &&
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export GIT_INDEX_FILE &&
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git commit -m "commit using nonexistent index" &&
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test -z "$(git ls-files)" &&
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test -z "$(git ls-tree HEAD)"
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) &&
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cmp .git/index saved-index >/dev/null
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'
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cat > expect << EOF
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zort
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Signed-off-by: C O Mitter <committer@example.com>
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EOF
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test_expect_success '--signoff' '
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echo "yet another content *narf*" >> foo &&
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echo "zort" | git commit -s -F - foo &&
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git cat-file commit HEAD | sed "1,/^\$/d" > output &&
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test_cmp expect output
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'
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test_expect_success 'commit message from file (1)' '
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mkdir subdir &&
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echo "Log in top directory" >log &&
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echo "Log in sub directory" >subdir/log &&
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(
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cd subdir &&
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git commit --allow-empty -F log
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) &&
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commit_msg_is "Log in sub directory"
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'
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test_expect_success 'commit message from file (2)' '
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rm -f log &&
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echo "Log in sub directory" >subdir/log &&
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(
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cd subdir &&
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git commit --allow-empty -F log
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) &&
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commit_msg_is "Log in sub directory"
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'
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test_expect_success 'commit message from stdin' '
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(
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cd subdir &&
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echo "Log with foo word" | git commit --allow-empty -F -
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) &&
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commit_msg_is "Log with foo word"
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'
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test_expect_success 'commit -F overrides -t' '
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(
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cd subdir &&
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echo "-F log" > f.log &&
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echo "-t template" > t.template &&
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git commit --allow-empty -F f.log -t t.template
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) &&
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commit_msg_is "-F log"
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'
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test_expect_success 'Commit without message is allowed with --allow-empty-message' '
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echo "more content" >>foo &&
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git add foo &&
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>empty &&
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git commit --allow-empty-message <empty &&
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commit_msg_is "" &&
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git tag empty-message-commit
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'
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test_expect_success 'Commit without message is no-no without --allow-empty-message' '
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echo "more content" >>foo &&
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git add foo &&
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>empty &&
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test_must_fail git commit <empty
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'
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test_expect_success 'Commit a message with --allow-empty-message' '
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echo "even more content" >>foo &&
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git add foo &&
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git commit --allow-empty-message -m"hello there" &&
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commit_msg_is "hello there"
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'
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test_expect_success 'commit -C empty respects --allow-empty-message' '
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echo more >>foo &&
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git add foo &&
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test_must_fail git commit -C empty-message-commit &&
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git commit -C empty-message-commit --allow-empty-message &&
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commit_msg_is ""
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'
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commit_for_rebase_autosquash_setup () {
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echo "first content line" >>foo &&
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git add foo &&
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cat >log <<EOF &&
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target message subject line
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target message body line 1
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target message body line 2
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EOF
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git commit -F log &&
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echo "second content line" >>foo &&
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git add foo &&
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git commit -m "intermediate commit" &&
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echo "third content line" >>foo &&
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git add foo
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}
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test_expect_success 'commit --fixup provides correct one-line commit message' '
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commit_for_rebase_autosquash_setup &&
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git commit --fixup HEAD~1 &&
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commit_msg_is "fixup! target message subject line"
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'
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test_expect_success 'commit --squash works with -F' '
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commit_for_rebase_autosquash_setup &&
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echo "log message from file" >msgfile &&
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git commit --squash HEAD~1 -F msgfile &&
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commit_msg_is "squash! target message subject linelog message from file"
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'
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test_expect_success 'commit --squash works with -m' '
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commit_for_rebase_autosquash_setup &&
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git commit --squash HEAD~1 -m "foo bar\nbaz" &&
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commit_msg_is "squash! target message subject linefoo bar\nbaz"
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'
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test_expect_success 'commit --squash works with -C' '
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commit_for_rebase_autosquash_setup &&
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git commit --squash HEAD~1 -C HEAD &&
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commit_msg_is "squash! target message subject lineintermediate commit"
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'
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test_expect_success 'commit --squash works with -c' '
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commit_for_rebase_autosquash_setup &&
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test_set_editor "$TEST_DIRECTORY"/t7500/edit-content &&
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git commit --squash HEAD~1 -c HEAD &&
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commit_msg_is "squash! target message subject lineedited commit"
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'
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test_expect_success 'commit --squash works with -C for same commit' '
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commit_for_rebase_autosquash_setup &&
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git commit --squash HEAD -C HEAD &&
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commit_msg_is "squash! intermediate commit"
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'
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test_expect_success 'commit --squash works with -c for same commit' '
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commit_for_rebase_autosquash_setup &&
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test_set_editor "$TEST_DIRECTORY"/t7500/edit-content &&
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git commit --squash HEAD -c HEAD &&
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commit_msg_is "squash! edited commit"
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'
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test_expect_success 'commit --squash works with editor' '
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commit_for_rebase_autosquash_setup &&
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test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
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git commit --squash HEAD~1 &&
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commit_msg_is "squash! target message subject linecommit message"
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'
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test_expect_success 'invalid message options when using --fixup' '
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echo changes >>foo &&
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echo "message" >log &&
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git add foo &&
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test_must_fail git commit --fixup HEAD~1 --squash HEAD~2 &&
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test_must_fail git commit --fixup HEAD~1 -C HEAD~2 &&
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test_must_fail git commit --fixup HEAD~1 -c HEAD~2 &&
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test_must_fail git commit --fixup HEAD~1 -m "cmdline message" &&
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test_must_fail git commit --fixup HEAD~1 -F log
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'
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test_done
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