git-cherry: make <upstream> parameter optional
authorMarkus Heidelberg <markus.heidelberg@web.de>
Mon, 29 Dec 2008 17:45:20 +0000 (18:45 +0100)
committerJunio C Hamano <gitster@pobox.com>
Thu, 1 Jan 2009 12:40:16 +0000 (04:40 -0800)
The upstream branch <upstream> now defaults to the first tracked
remote branch, which is set by the configuration variables
branch.<name>.remote and branch.<name>.merge of the current branch.

Without such a remote branch, the command "git cherry [-v]" fails with
usage output as before and an additional message.

Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/git-cherry.txt
builtin-log.c
index 74d14c4e7fc88e702e4781b22eb8ed5ce0480c6f..556ea23cd96018bcf85102bdf82438baa61c2390 100644 (file)
@@ -7,7 +7,7 @@ git-cherry - Find commits not merged upstream
 
 SYNOPSIS
 --------
-'git cherry' [-v] <upstream> [<head>] [<limit>]
+'git cherry' [-v] [<upstream>] [<head>] [<limit>]
 
 DESCRIPTION
 -----------
@@ -51,6 +51,7 @@ OPTIONS
 
 <upstream>::
        Upstream branch to compare against.
+       Defaults to the first tracked remote branch, if available.
 
 <head>::
        Working branch; defaults to HEAD.
index 99d1137b081d2e14d75e3d4d1766c3bf921f1493..243f8573e48c46c94e68fbc280eb78666b812a98 100644 (file)
@@ -16,6 +16,7 @@
 #include "patch-ids.h"
 #include "run-command.h"
 #include "shortlog.h"
+#include "remote.h"
 
 /* Set a default date-time format for git log ("log.date" config variable) */
 static const char *default_date_mode = NULL;
@@ -1070,13 +1071,14 @@ static int add_pending_commit(const char *arg, struct rev_info *revs, int flags)
 }
 
 static const char cherry_usage[] =
-"git cherry [-v] <upstream> [<head>] [<limit>]";
+"git cherry [-v] [<upstream>] [<head>] [<limit>]";
 int cmd_cherry(int argc, const char **argv, const char *prefix)
 {
        struct rev_info revs;
        struct patch_ids ids;
        struct commit *commit;
        struct commit_list *list = NULL;
+       struct branch *current_branch;
        const char *upstream;
        const char *head = "HEAD";
        const char *limit = NULL;
@@ -1099,7 +1101,17 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
                upstream = argv[1];
                break;
        default:
-               usage(cherry_usage);
+               current_branch = branch_get(NULL);
+               if (!current_branch || !current_branch->merge
+                                       || !current_branch->merge[0]
+                                       || !current_branch->merge[0]->dst) {
+                       fprintf(stderr, "Could not find a tracked"
+                                       " remote branch, please"
+                                       " specify <upstream> manually.\n");
+                       usage(cherry_usage);
+               }
+
+               upstream = current_branch->merge[0]->dst;
        }
 
        init_revisions(&revs, prefix);