Re: [PATCH] Add option to git-commit to allow empty log messages

> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
> ---
>  Documentation/git-commit.txt          |   12 +++++++--
>  builtin/commit.c                      |    7 +++--
>  t/t7510-commit-allow-empty-message.sh |   41 +++++++++++++++++++++++++++++++++
>  3 files changed, 54 insertions(+), 6 deletions(-)
>  create mode 100755 t/t7510-commit-allow-empty-message.sh
> 
> 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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