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| author | Eric Wong <e@80x24.org> | 2023-02-12 09:04:26 +0000 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2023-02-27 09:27:03 -0800 |
| commit | c6ce27ab08d30dd9d626d7a56cb928bc5792eb27 (patch) | |
| tree | db78da0e93422555f1e18788c91f2e5aaa64a2ff /revision.c | |
| parent | dadc8e6dacb629f46aee39bde90b6f09b73722eb (diff) | |
| download | git-c6ce27ab08d30dd9d626d7a56cb928bc5792eb27.tar.gz | |
fetch: support hideRefs to speed up connectivity checks
With roughly 800 remotes all fetching into their own
refs/remotes/$REMOTE/* island, the connectivity check[1] gets
expensive for each fetch on systems which lack sufficient RAM to
cache objects.
To do a no-op fetch on one $REMOTE out of hundreds, hideRefs now
allows the no-op fetch to take ~30 seconds instead of ~20 minutes
on a noisy, RAM-constrained machine (localhost, so no network latency):
git -c fetch.hideRefs=refs \
-c fetch.hideRefs='!refs/remotes/$REMOTE/' \
fetch $REMOTE
[1] `git rev-list --objects --stdin --not --all --quiet --alternate-refs'
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'revision.c')
| -rw-r--r-- | revision.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/revision.c b/revision.c index 21f5f572c2..50940699e4 100644 --- a/revision.c +++ b/revision.c @@ -1574,7 +1574,8 @@ void exclude_hidden_refs(struct ref_exclusions *exclusions, const char *section) { struct exclude_hidden_refs_cb cb; - if (strcmp(section, "receive") && strcmp(section, "uploadpack")) + if (strcmp(section, "fetch") && strcmp(section, "receive") && + strcmp(section, "uploadpack")) die(_("unsupported section for hidden refs: %s"), section); if (exclusions->hidden_refs_configured) |