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remote.c: return upstream name from stat_tracking_info

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After calling stat_tracking_info, callers often want to
print the name of the upstream branch (in addition to the
tracking count). To do this, they have to access
branch->merge->dst[0] themselves. This is not wrong, as the
return value from stat_tracking_info tells us whether we
have an upstream branch or not. But it is a bit leaky, as we
make an assumption about how it calculated the upstream
name.

Instead, let's add an out-parameter that lets the caller
know the upstream name we found.

As a bonus, we can get rid of the unusual tri-state return
from the function. We no longer need to use it to
differentiate between "no tracking config" and "tracking ref
does not exist" (since you can check the upstream_name for
that), so we can just use the usual 0/-1 convention for
success/error.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2015-05-21 20:49:11 -04:00
committed by Junio C Hamano
parent 1ca41a1932
commit 979cb245e2
5 changed files with 32 additions and 44 deletions
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18
wt-status.c
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@ -1532,21 +1532,15 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
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 */
if (stat_tracking_info(branch, &num_ours, &num_theirs, &base) < 0) {
if (!base) {
fputc(s->null_termination ? '\0' : '\n', s->fp);
return;
}
upstream_is_gone = 1;
break;
default:
/* with base */
break;
}
base = branch->merge[0]->dst;
base = shorten_unambiguous_ref(base, 0);
color_fprintf(s->fp, header_color, "...");
color_fprintf(s->fp, branch_color_remote, "%s", base);