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ls-remote: pass heads/tags prefixes to transport 

Unlike its arbitrary text patterns, the --heads and --tags
options to ls-remote are true prefixes. We can pass this
information to the transport code. If the v2 protocol is in
use, that will reduce the size of the ref advertisement.

Note that the test added here succeeds both before and after
the patch. This is an optimization, not a bug-fix; it's just
making sure we didn't break anything.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2018-10-31 00:24:42 -04:00 committed by Junio C Hamano
parent 631f0f8c4b
commit 6a139cdd74
2 changed files with 14 additions and 0 deletions
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5
builtin/ls-remote.c
View File

@ -92,6 +92,11 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
}
}
if (flags & REF_TAGS)
argv_array_push(&ref_prefixes, "refs/tags/");
if (flags & REF_HEADS)
argv_array_push(&ref_prefixes, "refs/heads/");
remote = remote_get(dest);
if (!remote) {
if (dest)

9
t/t5512-ls-remote.sh
View File

@ -313,4 +313,13 @@ test_expect_success 'ls-remote patterns work with all protocol versions' '
test_cmp expect actual.v2
'
test_expect_success 'ls-remote prefixes work with all protocol versions' '
git for-each-ref --format="%(objectname) %(refname)" \
refs/heads/ refs/tags/ >expect &&
git -c protocol.version=1 ls-remote --heads --tags . >actual.v1 &&
test_cmp expect actual.v1 &&
git -c protocol.version=2 ls-remote --heads --tags . >actual.v2 &&
test_cmp expect actual.v2
'
test_done