diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index 64fb458..2c1c2e1 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -10,9 +10,9 @@ SYNOPSIS
[verse]
'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend] [--dry-run]
[(-c | -C) <commit>] [-F <file> | -m <msg>] [--reset-author]
- [--allow-empty] [--no-verify] [-e] [--author=<author>]
- [--date=<date>] [--cleanup=<mode>] [--status | --no-status] [--]
- [[-i | -o ]<file>...]
+ [--allow-empty] [--allow-empty-message] [--no-verify] [-e]
+ [--author=<author>] [--date=<date>] [--cleanup=<mode>]
+ [--status | --no-status] [--] [[-i | -o ]<file>...]
DESCRIPTION
-----------
@@ -131,6 +131,12 @@ OPTIONS
from making such a commit. This option bypasses the safety, and
is primarily for use by foreign scm interface scripts.
+--allow-empty-message::
+ Like --allow-empty this command is primarily for use by foreign
+ scm interface scripts. It allows you to create a commit with an
+ empty commit message without using plumbing commands like
+ linkgit:git-commit-tree[1].
+
--cleanup=<mode>::
This option sets how the commit message is cleaned up.
The '<mode>' can be one of 'verbatim', 'whitespace', 'strip',
diff --git a/builtin/commit.c b/builtin/commit.c
index c5ab683..7fd963e 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -65,8 +65,8 @@ static const char *template_file;
static char *edit_message, *use_message;
static char *author_name, *author_email, *author_date;
static int all, edit_flag, also, interactive, only, amend, signoff;
-static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship;
-static int no_post_rewrite;
+static int quiet, verbose, no_verify, allow_empty, allow_empty_message, dry_run;
+static int no_post_rewrite, renew_authorship;
static char *untracked_files_arg, *force_date;
/*
* The default commit message cleanup mode will remove the lines
@@ -141,6 +141,7 @@ static struct option builtin_commit_options[] = {
OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"),
{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
+ OPT_BOOLEAN(0, "allow-empty-message", &allow_empty_message, "ok to record a change with an empty message"),
/* end commit contents options */
OPT_END()@@ -1293,7 +1294,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, cleanup_mode == CLEANUP_ALL);
- if (message_is_empty(&sb)) {
+ if (message_is_empty(&sb) && !allow_empty_message) {
rollback_index_files();
fprintf(stderr, "Aborting commit due to empty commit message.\n");
exit(1);diff --git a/t/t7510-commit-allow-empty-message.sh b/t/t7510-commit-allow-empty-message.sh
new file mode 100755
index 0000000..d7dc0da
--- /dev/null
+++ b/t/t7510-commit-allow-empty-message.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 Ævar Arnfjörð Bjarmason
+#
+
+test_description='git commit --allow-empty-message'
+
+. ./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"
+ ) &&
+ commit_msg_is "initial commit"
+'
+
+test_expect_success 'Commit no message with --allow-empty-message' '
+ (
+ echo "more content" >> foo &&
+ git add foo &&
+ printf "" | git commit --allow-empty-message
+ ) &&
+ commit_msg_is ""
+'
+
+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--
1.7.0.4.298.gc81d
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