status: add status.aheadbehind setting

diff --git a/builtin/commit.c b/builtin/commit.c
index 1c9e8e2228c7ce58375bc247c4ad5850a1bd7d2d..71305073ad49bf607bddc18393722dafbfa6a777 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1078,9 +1078,11 @@ static const char *read_commit_message(const char *name)
 static struct status_deferred_config {
        enum wt_status_format status_format;
        int show_branch;
+       enum ahead_behind_flags ahead_behind;
 } status_deferred_config = {
        STATUS_FORMAT_UNSPECIFIED,
-       -1 /* unspecified */
+       -1, /* unspecified */
+       AHEAD_BEHIND_UNSPECIFIED,
 };
 
 static void finalize_deferred_config(struct wt_status *s)
@@ -1107,6 +1109,15 @@ static void finalize_deferred_config(struct wt_status *s)
        if (s->show_branch < 0)
                s->show_branch = 0;
 
+       /*
+        * If the user did not give a "--[no]-ahead-behind" command
+        * line argument, then we inherit the a/b config setting.
+        * If is not set, then we inherit _FULL for backwards
+        * compatibility.
+        */
+       if (s->ahead_behind_flags == AHEAD_BEHIND_UNSPECIFIED)
+               s->ahead_behind_flags = status_deferred_config.ahead_behind;
+
        if (s->ahead_behind_flags == AHEAD_BEHIND_UNSPECIFIED)
                s->ahead_behind_flags = AHEAD_BEHIND_FULL;
 }
@@ -1246,6 +1257,10 @@ static int git_status_config(const char *k, const char *v, void *cb)
                status_deferred_config.show_branch = git_config_bool(k, v);
                return 0;
        }
+       if (!strcmp(k, "status.aheadbehind")) {
+               status_deferred_config.ahead_behind = git_config_bool(k, v);
+               return 0;
+       }
        if (!strcmp(k, "status.showstash")) {
                s->show_stash = git_config_bool(k, v);
                return 0;