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commit-graph: split up close_reachable() progress output

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Amend the progress output added in 7b0f229222 ("commit-graph write:
add progress output", 2018-09-17) so that the total numbers it reports
aren't higher than the total number of commits anymore. See [1] for a
bug report pointing that out.

When I added this I wasn't intending to provide an accurate count, but
just have some progress output to show the user the command wasn't
hanging[2]. But since we are showing numbers, let's make them
accurate. The progress descriptions were suggested by Derrick Stolee
in [3].

As noted in [2] we are unlikely to show anything except the "Expanding
reachable..." message even on fairly large repositories such as
linux.git. On a test repository I have with north of 7 million commits
all of these are displayed. Two of them don't show up for long, but as
noted in [5] future-proofing this for if the loops become more
expensive in the future makes sense.

1. https://public-inbox.org/git/20181010203738.GE23446@szeder.dev/
2. https://public-inbox.org/git/87pnwhea8y.fsf@evledraar.gmail.com/
3. https://public-inbox.org/git/f7a0cbee-863c-61d3-4959-5cec8b43c705@gmail.com/
4. https://public-inbox.org/git/20181015160545.GG19800@szeder.dev/
5. https://public-inbox.org/git/87murle8da.fsf@evledraar.gmail.com/

Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Helped-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2018-11-19 20:23:00 +00:00 committed by Junio C Hamano
parent 6b89a34c89
commit 01ca387774
1 changed files with 10 additions and 3 deletions
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13
commit-graph.c
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@ -595,26 +595,29 @@ static void add_missing_parents(struct packed_oid_list *oids, struct commit *com
static void close_reachable(struct packed_oid_list *oids, int report_progress)
{
int i;
int i, j;
struct commit *commit;
struct progress *progress = NULL;
int j = 0;
if (report_progress)
progress = start_delayed_progress(
_("Annotating commits in commit graph"), 0);
_("Loading known commits in commit graph"), j = 0);
for (i = 0; i < oids->nr; i++) {
display_progress(progress, ++j);
commit = lookup_commit(the_repository, &oids->list[i]);
if (commit)
commit->object.flags |= UNINTERESTING;
}
stop_progress(&progress);
/*
* As this loop runs, oids->nr may grow, but not more
* than the number of missing commits in the reachable
* closure.
*/
if (report_progress)
progress = start_delayed_progress(
_("Expanding reachable commits in commit graph"), j = 0);
for (i = 0; i < oids->nr; i++) {
display_progress(progress, ++j);
commit = lookup_commit(the_repository, &oids->list[i]);
@ -622,7 +625,11 @@ static void close_reachable(struct packed_oid_list *oids, int report_progress)
if (commit && !parse_commit(commit))
add_missing_parents(oids, commit);
}
stop_progress(&progress);
if (report_progress)
progress = start_delayed_progress(
_("Clearing commit marks in commit graph"), j = 0);
for (i = 0; i < oids->nr; i++) {
display_progress(progress, ++j);
commit = lookup_commit(the_repository, &oids->list[i]);