[PATCH] commit: make default of "cleanup" option configurable

[Ralf Thielow <ralf.thielow@gmail.com>]

The default of the "cleanup" option in "git commit"
is not configurable. Users who don't want to use the
default have to pass this option on every commit since
there's no way to configure it. This commit introduces
a new config option "commit.cleanup" which can be used
to change the default of the "cleanup" option in
"git commit".

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
---
 Documentation/config.txt |  4 ++++
 builtin/commit.c         | 29 ++++++++++++++++++-----------
 2 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 53c4ca1..3f76cd1 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -917,6 +917,10 @@ column.tag::
 	Specify whether to output tag listing in `git tag` in columns.
 	See `column.ui` for details.
 
+commit.cleanup::
+	This setting overrides the default of the `--cleanup` option in
+	`git commit`. See linkgit:git-commit[1] for details.
+
 commit.status::
 	A boolean to enable/disable inclusion of status information in the
 	commit message template when using an editor to prepare the commit
diff --git a/builtin/commit.c b/builtin/commit.c
index d6dd3df..42acde7 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -103,7 +103,7 @@ static enum {
 	CLEANUP_NONE,
 	CLEANUP_ALL
 } cleanup_mode;
-static char *cleanup_arg;
+const static char *cleanup_arg;
 
 static enum commit_whence whence;
 static int use_editor = 1, include_status = 1;
@@ -966,6 +966,20 @@ static const char *read_commit_message(const char *name)
 	return out;
 }
 
+static void parse_cleanup_arg()
+{
+	if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
+		cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE;
+	else if (!strcmp(cleanup_arg, "verbatim"))
+		cleanup_mode = CLEANUP_NONE;
+	else if (!strcmp(cleanup_arg, "whitespace"))
+		cleanup_mode = CLEANUP_SPACE;
+	else if (!strcmp(cleanup_arg, "strip"))
+		cleanup_mode = CLEANUP_ALL;
+	else
+		die(_("Invalid cleanup mode %s"), cleanup_arg);
+}
+
 static int parse_and_validate_options(int argc, const char *argv[],
 				      const struct option *options,
 				      const char * const usage[],
@@ -1044,18 +1058,9 @@ static int parse_and_validate_options(int argc, const char *argv[],
 		only_include_assumed = _("Clever... amending the last one with dirty index.");
 	if (argc > 0 && !also && !only)
 		only_include_assumed = _("Explicit paths specified without -i nor -o; assuming --only paths...");
-	if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
-		cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE;
-	else if (!strcmp(cleanup_arg, "verbatim"))
-		cleanup_mode = CLEANUP_NONE;
-	else if (!strcmp(cleanup_arg, "whitespace"))
-		cleanup_mode = CLEANUP_SPACE;
-	else if (!strcmp(cleanup_arg, "strip"))
-		cleanup_mode = CLEANUP_ALL;
-	else
-		die(_("Invalid cleanup mode %s"), cleanup_arg);
 
 	handle_untracked_files_arg(s);
+	parse_cleanup_arg();
 
 	if (all && argc > 0)
 		die(_("Paths with -a does not make sense."));
@@ -1320,6 +1325,8 @@ static int git_commit_config(const char *k, const char *v, void *cb)
 		include_status = git_config_bool(k, v);
 		return 0;
 	}
+	if (!strcmp(k, "commit.cleanup"))
+		return git_config_string(&cleanup_arg, k, v);
 
 	status = git_gpg_config(k, v, NULL);
 	if (status)
-- 
1.8.1.165.gd94bd4e.dirty