git-branch -v: show the remote tracking statistics

This teaches "git branch -v" to insert the remote tracking statistics in
brackets, just before the one-liner commit log message for the branch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-branch.c b/builtin-branch.c
index d279702ba9a90faa020fa2f102d595cec082be21..e9423d1e4ce82b7b726358958f3da2fc34f6ca56 100644 (file)
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -282,6 +282,23 @@ static int ref_cmp(const void *r1, const void *r2)
        return strcmp(c1->name, c2->name);
 }
 
+static void fill_tracking_info(char *stat, const char *branch_name)
+{
+       int ours, theirs;
+       struct branch *branch = branch_get(branch_name);
+
+       if (!stat_tracking_info(branch, &ours, &theirs) || (!ours && !theirs)) {
+               stat[0] = '\0';
+               return;
+       }
+       if (!ours)
+               sprintf(stat, "[behind %d] ", theirs);
+       else if (!theirs)
+               sprintf(stat, "[ahead %d] ", ours);
+       else
+               sprintf(stat, "[ahead %d, behind %d] ", ours, theirs);
+}
+
 static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
                           int abbrev, int current)
 {
@@ -310,6 +327,7 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
        if (verbose) {
                struct strbuf subject;
                const char *sub = " **** invalid ref ****";
+               char stat[128];
 
                strbuf_init(&subject, 0);
 
@@ -319,10 +337,15 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
                                            &subject, 0, NULL, NULL, 0, 0);
                        sub = subject.buf;
                }
-               printf("%c %s%-*s%s %s %s\n", c, branch_get_color(color),
+
+               if (item->kind == REF_LOCAL_BRANCH)
+                       fill_tracking_info(stat, item->name);
+
+               printf("%c %s%-*s%s %s %s%s\n", c, branch_get_color(color),
                       maxwidth, item->name,
                       branch_get_color(COLOR_BRANCH_RESET),
-                      find_unique_abbrev(item->sha1, abbrev), sub);
+                      find_unique_abbrev(item->sha1, abbrev),
+                      stat, sub);
                strbuf_release(&subject);
        } else {
                printf("%c %s%s%s\n", c, branch_get_color(color), item->name,