[PATCH 1/3] fetch: add --allow-local option

[Felipe Contreras <felipe.contreras@gmail.com>]

So that it becomes possible to override the behavior when the remote
tracked is '.'; if it is, we default back to 'origin'.

To do this, we need to add a new helper fetchremote_get() that accepts
the boolean to enable/disable this behavior.

The default is 'true' which shouldn't cause any change in behavior.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 builtin/fetch.c |  6 +++++-
 remote.c        | 17 ++++++++++++++---
 remote.h        |  1 +
 3 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/builtin/fetch.c b/builtin/fetch.c
index 4b6b1df..2efbd7b 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -39,6 +39,7 @@ static struct strbuf default_rla = STRBUF_INIT;
 static struct transport *transport;
 static const char *submodule_prefix = "";
 static const char *recurse_submodules_default;
+static int allow_local = 1;
 
 static int option_parse_recurse_submodules(const struct option *opt,
 				   const char *arg, int unset)
@@ -90,6 +91,9 @@ static struct option builtin_fetch_options[] = {
 	{ OPTION_STRING, 0, "recurse-submodules-default",
 		   &recurse_submodules_default, NULL,
 		   N_("default mode for recursion"), PARSE_OPT_HIDDEN },
+	{ OPTION_SET_INT, 0, "allow-local", &allow_local, NULL,
+		   N_("allow fetching from local repository"),
+		   PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1 },
 	OPT_END()
 };
 
@@ -1006,7 +1010,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
 		result = fetch_multiple(&list);
 	} else if (argc == 0) {
 		/* No arguments -- use default remote */
-		remote = remote_get(NULL);
+		remote = fetchremote_get(NULL, allow_local);
 		result = fetch_one(remote, argc, argv);
 	} else if (multiple) {
 		/* All arguments are assumed to be remotes or groups */
diff --git a/remote.c b/remote.c
index 68eb99b..a7e59ab 100644
--- a/remote.c
+++ b/remote.c
@@ -682,7 +682,7 @@ static int valid_remote_nick(const char *name)
 	return !strchr(name, '/'); /* no slash */
 }
 
-static struct remote *remote_get_1(const char *name, const char *pushremote_name)
+static struct remote *remote_get_1(const char *name, const char *pushremote_name, int allow_local)
 {
 	struct remote *ret;
 	int name_given = 0;
@@ -699,6 +699,11 @@ static struct remote *remote_get_1(const char *name, const char *pushremote_name
 		}
 	}
 
+	if (!allow_local && !strcmp(name, ".")) {
+		name = "origin";
+		name_given = 0;
+	}
+
 	ret = make_remote(name, 0);
 	if (valid_remote_nick(name)) {
 		if (!valid_remote(ret))
@@ -718,13 +723,19 @@ static struct remote *remote_get_1(const char *name, const char *pushremote_name
 struct remote *remote_get(const char *name)
 {
 	read_config();
-	return remote_get_1(name, NULL);
+	return remote_get_1(name, NULL, 1);
 }
 
 struct remote *pushremote_get(const char *name)
 {
 	read_config();
-	return remote_get_1(name, pushremote_name);
+	return remote_get_1(name, pushremote_name, 1);
+}
+
+struct remote *fetchremote_get(const char *name, int allow_local)
+{
+	read_config();
+	return remote_get_1(name, NULL, allow_local);
 }
 
 int remote_is_configured(const char *name)
diff --git a/remote.h b/remote.h
index cf56724..f0d6cf3 100644
--- a/remote.h
+++ b/remote.h
@@ -52,6 +52,7 @@ struct remote {
 
 struct remote *remote_get(const char *name);
 struct remote *pushremote_get(const char *name);
+struct remote *fetchremote_get(const char *name, int allow_local);
 int remote_is_configured(const char *name);
 
 typedef int each_remote_fn(struct remote *remote, void *priv);
-- 
1.8.3.rc1.579.g184e698