[PATCH 6/6] push: honor branch.*.push

[Junio C Hamano <gitster@pobox.com>]

When branch.*.push configuration variable is defined for the current
branch, a lazy-typing "git push" (and "git push there") will push
the commit at the tip of the current branch to the destination and
update the branch named by that variable.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/push.c | 18 +++++++++++++++++-
 remote.c       |  5 +++++
 remote.h       |  2 ++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/builtin/push.c b/builtin/push.c
index f6c8047..a140b8e 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -185,6 +185,15 @@ static void warn_unspecified_push_default_configuration(void)
 	warning("%s\n", _(warn_unspecified_push_default_msg));
 }
 
+static void setup_per_branch_push(struct branch *branch)
+{
+	struct strbuf refspec = STRBUF_INIT;
+
+	strbuf_addf(&refspec, "%s:%s",
+		    branch->name, branch->push_name);
+	add_refspec(refspec.buf);
+}
+
 static int is_workflow_triagular(struct remote *remote)
 {
 	struct remote *fetch_remote = remote_get(NULL);
@@ -194,7 +203,14 @@ static int is_workflow_triagular(struct remote *remote)
 static void setup_default_push_refspecs(struct remote *remote)
 {
 	struct branch *branch = branch_get(NULL);
-	int triangular = is_workflow_triagular(remote);
+	int triangular;
+
+	if (branch->push_name) {
+		setup_per_branch_push(branch);
+		return;
+	}
+
+	triangular = is_workflow_triagular(remote);
 
 	switch (push_default) {
 	default:
diff --git a/remote.c b/remote.c
index e71f66d..e033fef 100644
--- a/remote.c
+++ b/remote.c
@@ -372,6 +372,11 @@ static int handle_config(const char *key, const char *value, void *cb)
 			if (!value)
 				return config_error_nonbool(key);
 			add_merge(branch, xstrdup(value));
+		} else if (!strcmp(subkey, ".push")) {
+			if (!value)
+				return config_error_nonbool(key);
+			free(branch->push_name);
+			branch->push_name = xstrdup(value);
 		}
 		return 0;
 	}
diff --git a/remote.h b/remote.h
index cf56724..84e0f72 100644
--- a/remote.h
+++ b/remote.h
@@ -138,6 +138,8 @@ struct branch {
 	struct refspec **merge;
 	int merge_nr;
 	int merge_alloc;
+
+	char *push_name;
 };
 
 struct branch *branch_get(const char *name);
-- 
1.8.3.1-721-g0a353d3