Merge branch 'jx/branch-vv-always-compare-with-upstream'
authorJunio C Hamano <gitster@pobox.com>
Fri, 20 Sep 2013 19:26:57 +0000 (12:26 -0700)
committerJunio C Hamano <gitster@pobox.com>
Fri, 20 Sep 2013 19:26:57 +0000 (12:26 -0700)
"git branch -v -v" (and "git status") did not distinguish among a
branch that does not build on any other branch, a branch that is in
sync with the branch it builds on, and a branch that is configured
to build on some other branch that no longer exists.

* jx/branch-vv-always-compare-with-upstream:
status: always show tracking branch even no change
branch: report invalid tracking branch as gone

builtin/branch.c
remote.c
t/t6040-tracking-info.sh
wt-status.c
index 0903763702a436dc8b3ffc89aa64b2598e257446..ad0f86de540dc394199f71c03665d0cd76371c35 100644 (file)
@@ -423,19 +423,19 @@ static void fill_tracking_info(struct strbuf *stat, const char *branch_name,
        char *ref = NULL;
        struct branch *branch = branch_get(branch_name);
        struct strbuf fancy = STRBUF_INIT;
+       int upstream_is_gone = 0;
 
-       if (!stat_tracking_info(branch, &ours, &theirs)) {
-               if (branch && branch->merge && branch->merge[0]->dst &&
-                   show_upstream_ref) {
-                       ref = shorten_unambiguous_ref(branch->merge[0]->dst, 0);
-                       if (want_color(branch_use_color))
-                               strbuf_addf(stat, "[%s%s%s] ",
-                                               branch_get_color(BRANCH_COLOR_UPSTREAM),
-                                               ref, branch_get_color(BRANCH_COLOR_RESET));
-                       else
-                               strbuf_addf(stat, "[%s] ", ref);
-               }
+       switch (stat_tracking_info(branch, &ours, &theirs)) {
+       case 0:
+               /* no base */
                return;
+       case -1:
+               /* with "gone" base */
+               upstream_is_gone = 1;
+               break;
+       default:
+               /* with base */
+               break;
        }
 
        if (show_upstream_ref) {
@@ -448,19 +448,25 @@ static void fill_tracking_info(struct strbuf *stat, const char *branch_name,
                        strbuf_addstr(&fancy, ref);
        }
 
-       if (!ours) {
-               if (ref)
+       if (upstream_is_gone) {
+               if (show_upstream_ref)
+                       strbuf_addf(stat, _("[%s: gone]"), fancy.buf);
+       } else if (!ours && !theirs) {
+               if (show_upstream_ref)
+                       strbuf_addf(stat, _("[%s]"), fancy.buf);
+       } else if (!ours) {
+               if (show_upstream_ref)
                        strbuf_addf(stat, _("[%s: behind %d]"), fancy.buf, theirs);
                else
                        strbuf_addf(stat, _("[behind %d]"), theirs);
 
        } else if (!theirs) {
-               if (ref)
+               if (show_upstream_ref)
                        strbuf_addf(stat, _("[%s: ahead %d]"), fancy.buf, ours);
                else
                        strbuf_addf(stat, _("[ahead %d]"), ours);
        } else {
-               if (ref)
+               if (show_upstream_ref)
                        strbuf_addf(stat, _("[%s: ahead %d, behind %d]"),
                                    fancy.buf, ours, theirs);
                else
index 24334679e0971e3af5e168d1cf7259da55d21d50..e9fedfa918d6806532184b8735d2761951fd4a2e 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -1729,7 +1729,11 @@ int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1)
 }
 
 /*
- * Return true if there is anything to report, otherwise false.
+ * Compare a branch with its upstream, and save their differences (number
+ * of commits) in *num_ours and *num_theirs.
+ *
+ * Return 0 if branch has no upstream (no base), -1 if upstream is missing
+ * (with "gone" base), otherwise 1 (with base).
  */
 int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
 {
@@ -1740,34 +1744,30 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
        const char *rev_argv[10], *base;
        int rev_argc;
 
-       /*
-        * Nothing to report unless we are marked to build on top of
-        * somebody else.
-        */
+       /* Cannot stat unless we are marked to build on top of somebody else. */
        if (!branch ||
            !branch->merge || !branch->merge[0] || !branch->merge[0]->dst)
                return 0;
 
-       /*
-        * If what we used to build on no longer exists, there is
-        * nothing to report.
-        */
+       /* Cannot stat if what we used to build on no longer exists */
        base = branch->merge[0]->dst;
        if (read_ref(base, sha1))
-               return 0;
+               return -1;
        theirs = lookup_commit_reference(sha1);
        if (!theirs)
-               return 0;
+               return -1;
 
        if (read_ref(branch->refname, sha1))
-               return 0;
+               return -1;
        ours = lookup_commit_reference(sha1);
        if (!ours)
-               return 0;
+               return -1;
 
        /* are we the same? */
-       if (theirs == ours)
-               return 0;
+       if (theirs == ours) {
+               *num_theirs = *num_ours = 0;
+               return 1;
+       }
 
        /* Run "rev-list --left-right ours...theirs" internally... */
        rev_argc = 0;
@@ -1809,31 +1809,53 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
  */
 int format_tracking_info(struct branch *branch, struct strbuf *sb)
 {
-       int num_ours, num_theirs;
+       int ours, theirs;
        const char *base;
+       int upstream_is_gone = 0;
 
-       if (!stat_tracking_info(branch, &num_ours, &num_theirs))
+       switch (stat_tracking_info(branch, &ours, &theirs)) {
+       case 0:
+               /* no base */
                return 0;
+       case -1:
+               /* with "gone" base */
+               upstream_is_gone = 1;
+               break;
+       default:
+               /* with base */
+               break;
+       }
 
        base = branch->merge[0]->dst;
        base = shorten_unambiguous_ref(base, 0);
-       if (!num_theirs) {
+       if (upstream_is_gone) {
+               strbuf_addf(sb,
+                       _("Your branch is based on '%s', but the upstream is gone.\n"),
+                       base);
+               if (advice_status_hints)
+                       strbuf_addf(sb,
+                               _("  (use \"git branch --unset-upstream\" to fixup)\n"));
+       } else if (!ours && !theirs) {
+               strbuf_addf(sb,
+                       _("Your branch is up-to-date with '%s'.\n"),
+                       base);
+       } else if (!theirs) {
                strbuf_addf(sb,
                        Q_("Your branch is ahead of '%s' by %d commit.\n",
                           "Your branch is ahead of '%s' by %d commits.\n",
-                          num_ours),
-                       base, num_ours);
+                          ours),
+                       base, ours);
                if (advice_status_hints)
                        strbuf_addf(sb,
                                _("  (use \"git push\" to publish your local commits)\n"));
-       } else if (!num_ours) {
+       } else if (!ours) {
                strbuf_addf(sb,
                        Q_("Your branch is behind '%s' by %d commit, "
                               "and can be fast-forwarded.\n",
                           "Your branch is behind '%s' by %d commits, "
                               "and can be fast-forwarded.\n",
-                          num_theirs),
-                       base, num_theirs);
+                          theirs),
+                       base, theirs);
                if (advice_status_hints)
                        strbuf_addf(sb,
                                _("  (use \"git pull\" to update your local branch)\n"));
@@ -1845,8 +1867,8 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb)
                           "Your branch and '%s' have diverged,\n"
                               "and have %d and %d different commits each, "
                               "respectively.\n",
-                          num_theirs),
-                       base, num_ours, num_theirs);
+                          theirs),
+                       base, ours, theirs);
                if (advice_status_hints)
                        strbuf_addf(sb,
                                _("  (use \"git pull\" to merge the remote branch into yours)\n"));
index ec2b516c3f79901ca5593f1edb97455e3fa8389e..ba26cfe9239306035c2496f922055eaea6b46a31 100755 (executable)
@@ -28,10 +28,15 @@ test_expect_success setup '
                git reset --hard HEAD^ &&
                git checkout -b b4 origin &&
                advance e &&
-               advance f
+               advance f &&
+               git checkout -b brokenbase origin &&
+               git checkout -b b5 --track brokenbase &&
+               advance g &&
+               git branch -d brokenbase &&
+               git checkout -b b6 origin
        ) &&
        git checkout -b follower --track master &&
-       advance g
+       advance h
 '
 
 script='s/^..\(b.\)[    0-9a-f]*\[\([^]]*\)\].*/\1 \2/p'
@@ -56,6 +61,8 @@ b1 origin/master: ahead 1, behind 1
 b2 origin/master: ahead 1, behind 1
 b3 origin/master: behind 1
 b4 origin/master: ahead 2
+b5 brokenbase: gone
+b6 origin/master
 EOF
 
 test_expect_success 'branch -vv' '
@@ -67,7 +74,7 @@ test_expect_success 'branch -vv' '
        test_i18ncmp expect actual
 '
 
-test_expect_success 'checkout' '
+test_expect_success 'checkout (diverged from upstream)' '
        (
                cd test && git checkout b1
        ) >actual &&
@@ -80,7 +87,22 @@ test_expect_success 'checkout with local tracked branch' '
        test_i18ngrep "is ahead of" actual
 '
 
-test_expect_success 'status' '
+test_expect_success 'checkout (upstream is gone)' '
+       (
+               cd test &&
+               git checkout b5
+       ) >actual &&
+       test_i18ngrep "is based on .*, but the upstream is gone." actual
+'
+
+test_expect_success 'checkout (up-to-date with upstream)' '
+       (
+               cd test && git checkout b6
+       ) >actual &&
+       test_i18ngrep "Your branch is up-to-date with .origin/master" actual
+'
+
+test_expect_success 'status (diverged from upstream)' '
        (
                cd test &&
                git checkout b1 >/dev/null &&
@@ -90,6 +112,65 @@ test_expect_success 'status' '
        test_i18ngrep "have 1 and 1 different" actual
 '
 
+test_expect_success 'status (upstream is gone)' '
+       (
+               cd test &&
+               git checkout b5 >/dev/null &&
+               # reports nothing to commit
+               test_must_fail git commit --dry-run
+       ) >actual &&
+       test_i18ngrep "is based on .*, but the upstream is gone." actual
+'
+
+test_expect_success 'status (up-to-date with upstream)' '
+       (
+               cd test &&
+               git checkout b6 >/dev/null &&
+               # reports nothing to commit
+               test_must_fail git commit --dry-run
+       ) >actual &&
+       test_i18ngrep "Your branch is up-to-date with .origin/master" actual
+'
+
+cat >expect <<\EOF
+## b1...origin/master [ahead 1, behind 1]
+EOF
+
+test_expect_success 'status -s -b (diverged from upstream)' '
+       (
+               cd test &&
+               git checkout b1 >/dev/null &&
+               git status -s -b | head -1
+       ) >actual &&
+       test_i18ncmp expect actual
+'
+
+cat >expect <<\EOF
+## b5...brokenbase [gone]
+EOF
+
+test_expect_success 'status -s -b (upstream is gone)' '
+       (
+               cd test &&
+               git checkout b5 >/dev/null &&
+               git status -s -b | head -1
+       ) >actual &&
+       test_i18ncmp expect actual
+'
+
+cat >expect <<\EOF
+## b6...origin/master
+EOF
+
+test_expect_success 'status -s -b (up-to-date with upstream)' '
+       (
+               cd test &&
+               git checkout b6 >/dev/null &&
+               git status -s -b | head -1
+       ) >actual &&
+       test_i18ncmp expect actual
+'
+
 test_expect_success 'fail to track lightweight tags' '
        git checkout master &&
        git tag light &&
index ff4b32426a36db38fba9e4cc51e09a988efe34a6..c8c2d7752470fbea4fd4c8f80e2fa2d7bc50eeda 100644 (file)
@@ -1363,6 +1363,7 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
        const char *base;
        const char *branch_name;
        int num_ours, num_theirs;
+       int upstream_is_gone = 0;
 
        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 
@@ -1380,20 +1381,37 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
        branch = branch_get(s->branch + 11);
        if (s->is_initial)
                color_fprintf(s->fp, header_color, _("Initial commit on "));
-       if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
-               color_fprintf(s->fp, branch_color_local, "%s", branch_name);
+
+       color_fprintf(s->fp, branch_color_local, "%s", branch_name);
+
+       switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
+       case 0:
+               /* no base */
                fputc(s->null_termination ? '\0' : '\n', s->fp);
                return;
+       case -1:
+               /* with "gone" base */
+               upstream_is_gone = 1;
+               break;
+       default:
+               /* with base */
+               break;
        }
 
        base = branch->merge[0]->dst;
        base = shorten_unambiguous_ref(base, 0);
-       color_fprintf(s->fp, branch_color_local, "%s", branch_name);
        color_fprintf(s->fp, header_color, "...");
        color_fprintf(s->fp, branch_color_remote, "%s", base);
 
+       if (!upstream_is_gone && !num_ours && !num_theirs) {
+               fputc(s->null_termination ? '\0' : '\n', s->fp);
+               return;
+       }
+
        color_fprintf(s->fp, header_color, " [");
-       if (!num_ours) {
+       if (upstream_is_gone) {
+               color_fprintf(s->fp, header_color, _("gone"));
+       } else if (!num_ours) {
                color_fprintf(s->fp, header_color, _("behind "));
                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
        } else if (!num_theirs) {