Command "git branch -vv" will report tracking branches, but invalid
tracking branches are also reported. This is because the function
stat_tracking_info() can not distinguish invalid tracking branch
from other cases which it would not like to report, such as
there is no upstream settings at all, or nothing is changed between
one branch and its upstream.
Junio suggested missing upstream should be reported [1] like:
$ git branch -v -v
master
e67ac84 initial
* topic
3fc0f2a [topicbase: gone] topic
$ git status
# On branch topic
# Your branch is based on 'topicbase', but the upstream is gone.
# (use "git branch --unset-upstream" to fixup)
...
$ git status -b -s
## topic...topicbase [gone]
...
In order to do like that, we need to distinguish these three cases
(i.e. no tracking, with configured but no longer valid tracking, and
with tracking) in function stat_tracking_info(). So the refactored
function stat_tracking_info() has three return values: -1 (with "gone"
base), 0 (no base), and 1 (with base).
If the caller does not like to report tracking info when nothing
changed between the branch and its upstream, simply checks if
num_theirs and num_ours are both 0.
[1]: http://thread.gmane.org/gmane.comp.version-control.git/231830/focus=232288
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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) {
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
}
/*
- * 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)
{
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;
*/
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:
+ /* Nothing to report if neither side has changes. */
+ if (!ours && !theirs)
+ return 0;
+ /* 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 (!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"));
"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"));
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 follower --track master &&
- advance g
+ advance h
'
script='s/^..\(b.\)[ 0-9a-f]*\[\([^]]*\)\].*/\1 \2/p'
b2 origin/master: ahead 1, behind 1
b3 origin/master: behind 1
b4 origin/master: ahead 2
+b5 brokenbase: gone
EOF
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 &&
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 'status (diverged from upstream)' '
(
cd test &&
git checkout b1 >/dev/null &&
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
+'
+
+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
+'
+
test_expect_success 'fail to track lightweight tags' '
git checkout master &&
git tag light &&
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), "## ");
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:
+ /* Stop reporting if neither side has changes. */
+ if (!num_ours && !num_theirs) {
+ fputc(s->null_termination ? '\0' : '\n', s->fp);
+ return;
+ }
+ /* 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);
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) {