builtin/blame.c: Fix a "Using plain integer as NULL pointer" warning

diff --git a/builtin/push.c b/builtin/push.c
index 693671315ee11313ca98209ebf28fdeffb13f636..fdfcc6c71607a7412666b7cc647db98e1b85c8c1 100644 (file)
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -76,7 +76,44 @@ static int push_url_of_remote(struct remote *remote, const char ***url_p)
        return remote->url_nr;
 }
 
-static void setup_push_upstream(struct remote *remote)
+static NORETURN int die_push_simple(struct branch *branch, struct remote *remote) {
+       /*
+        * There's no point in using shorten_unambiguous_ref here,
+        * as the ambiguity would be on the remote side, not what
+        * we have locally. Plus, this is supposed to be the simple
+        * mode. If the user is doing something crazy like setting
+        * upstream to a non-branch, we should probably be showing
+        * them the big ugly fully qualified ref.
+        */
+       const char *advice_maybe = "";
+       const char *short_upstream =
+               skip_prefix(branch->merge[0]->src, "refs/heads/");
+
+       if (!short_upstream)
+               short_upstream = branch->merge[0]->src;
+       /*
+        * Don't show advice for people who explicitely set
+        * push.default.
+        */
+       if (push_default == PUSH_DEFAULT_UNSPECIFIED)
+               advice_maybe = _("\n"
+                                "To choose either option permanently, "
+                                "see push.default in 'git help config'.");
+       die(_("The upstream branch of your current branch does not match\n"
+             "the name of your current branch.  To push to the upstream branch\n"
+             "on the remote, use\n"
+             "\n"
+             "    git push %s HEAD:%s\n"
+             "\n"
+             "To push to the branch of the same name on the remote, use\n"
+             "\n"
+             "    git push %s %s\n"
+             "%s"),
+           remote->name, short_upstream,
+           remote->name, branch->name, advice_maybe);
+}
+
+static void setup_push_upstream(struct remote *remote, int simple)
 {
        struct strbuf refspec = STRBUF_INIT;
        struct branch *branch = branch_get(NULL);
@@ -103,6 +140,8 @@ static void setup_push_upstream(struct remote *remote)
                      "your current branch '%s', without telling me what to push\n"
                      "to update which remote branch."),
                    remote->name, branch->name);
+       if (simple && strcmp(branch->refname, branch->merge[0]->src))
+               die_push_simple(branch, remote);
 
        strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src);
        add_refspec(refspec.buf);
@@ -119,8 +158,12 @@ static void setup_default_push_refspecs(struct remote *remote)
                add_refspec(":");
                break;
 
+       case PUSH_DEFAULT_SIMPLE:
+               setup_push_upstream(remote, 1);
+               break;
+
        case PUSH_DEFAULT_UPSTREAM:
-               setup_push_upstream(remote);
+               setup_push_upstream(remote, 0);
                break;
 
        case PUSH_DEFAULT_CURRENT:
@@ -284,13 +327,21 @@ static int option_parse_recurse_submodules(const struct option *opt,
                                   const char *arg, int unset)
 {
        int *flags = opt->value;
+
+       if (*flags & (TRANSPORT_RECURSE_SUBMODULES_CHECK |
+                     TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND))
+               die("%s can only be used once.", opt->long_name);
+
        if (arg) {
                if (!strcmp(arg, "check"))
                        *flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK;
+               else if (!strcmp(arg, "on-demand"))
+                       *flags |= TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND;
                else
                        die("bad %s argument: %s", opt->long_name, arg);
        } else
-               die("option %s needs an argument (check)", opt->long_name);
+               die("option %s needs an argument (check|on-demand)",
+                               opt->long_name);
 
        return 0;
 }