[PATCH v3 1/8] commit: --dry-run

From

Junio C Hamano <gitster@pobox.com>

Date

Aug 10, 2009, 08:54 UTC

Message-ID

<1249894465-11018-2-git-send-email-gitster@pobox.com>

In-Reply-To

<1249894465-11018-1-git-send-email-gitster@pobox.com>

This teaches --dry-run option to "git commit".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 Documentation/git-commit.txt |    7 ++++++-
 builtin-commit.c             |   29 ++++++++++++++++-------------
 2 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index b5d81be..d01ff5a 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -8,7 +8,7 @@ git-commit - Record changes to the repository
 SYNOPSIS
 --------
 [verse]
-'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend]
+'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend] [--dry-run]
 	   [(-c | -C) <commit>] [-F <file> | -m <msg>]
 	   [--allow-empty] [--no-verify] [-e] [--author=<author>]
 	   [--cleanup=<mode>] [--] [[-i | -o ]<file>...]
@@ -198,6 +198,11 @@ specified.
 --quiet::
 	Suppress commit summary message.
 
+--dry-run::
+	Do not create a commit, but show a list of paths that are
+	to be committed, paths with local changes that will be left
+	uncommitted and paths that are untracked.
+
 \--::
 	Do not interpret any more arguments as options.
 
diff --git a/builtin-commit.c b/builtin-commit.c
index 6d12c2e..3a7e35d 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -51,7 +51,7 @@ 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;
+static int quiet, verbose, no_verify, allow_empty, dry_run;
 static char *untracked_files_arg;
 /*
  * The default commit message cleanup mode will remove the lines
@@ -103,6 +103,7 @@ static struct option builtin_commit_options[] = {
 	OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
 	OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
 	OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
+	OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"),
 	OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
 	{ 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"),
@@ -813,28 +814,28 @@ static int parse_and_validate_options(int argc, const char *argv[],
 	return argc;
 }
 
-int cmd_status(int argc, const char **argv, const char *prefix)
+static int dry_run_commit(int argc, const char **argv, const char *prefix)
 {
-	const char *index_file;
 	int commitable;
+	const char *index_file;
 
-	git_config(git_status_config, NULL);
+	index_file = prepare_index(argc, argv, prefix, 1);
+	commitable = run_status(stdout, index_file, prefix, 0);
+	rollback_index_files();
 
+	return commitable ? 0 : 1;
+}
+
+int cmd_status(int argc, const char **argv, const char *prefix)
+{
+	git_config(git_status_config, NULL);
 	if (wt_status_use_color == -1)
 		wt_status_use_color = git_use_color_default;
-
 	if (diff_use_color_default == -1)
 		diff_use_color_default = git_use_color_default;
 
 	argc = parse_and_validate_options(argc, argv, builtin_status_usage, prefix);
-
-	index_file = prepare_index(argc, argv, prefix, 1);
-
-	commitable = run_status(stdout, index_file, prefix, 0);
-
-	rollback_index_files();
-
-	return commitable ? 0 : 1;
+	return dry_run_commit(argc, argv, prefix);
 }
 
 static void print_summary(const char *prefix, const unsigned char *sha1)
@@ -909,6 +910,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		wt_status_use_color = git_use_color_default;
 
 	argc = parse_and_validate_options(argc, argv, builtin_commit_usage, prefix);
+	if (dry_run)
+		return dry_run_commit(argc, argv, prefix);
 
 	index_file = prepare_index(argc, argv, prefix, 0);
 

-- 
1.6.4.173.g72959