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remote: allow "-t" with fetch mirrors 

Commit 13fc2c1 (remote: disallow some nonsensical option
combinations, 2011-03-30) made it impossible to use "remote
add -t foo --mirror". The argument was that specifying
specific branches is useless because:

  1. Push mirrors do not want a refspec at all.

  2. The point of fetch mirroring is to use a broad refspec
     like "refs/*", but using "-t" overrides that.

Point (1) is valid; "-t" with push mirrors is useless. But
point (2) ignored another side effect of using --mirror: it
fetches the refs directly into the refs/ namespace as they
are found upstream, instead of placing them in a
separate-remote layout.

So 13fc2c1 was overly constrictive, and disallowed
reasonable specific-branch mirroring, like:

  git remote add -t heads/foo -t heads/bar --mirror=fetch

which makes the local "foo" and "bar" branches direct
mirrors of the remote, but does not fetch anything else.

This patch restores the original behavior, but only for
fetch mirrors.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Jeff King 2011-05-26 11:11:00 -04:00 committed by Junio C Hamano
parent 0990248610
commit 3eafdc961f
2 changed files with 24 additions and 2 deletions
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4
builtin/remote.c
View File

@ -193,8 +193,8 @@ static int add(int argc, const char **argv)


if (mirror && master) if (mirror && master)
die("specifying a master branch makes no sense with --mirror"); die("specifying a master branch makes no sense with --mirror");
if (mirror && track.nr) if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
die("specifying branches to track makes no sense with --mirror"); die("specifying branches to track makes sense only with fetch mirrors");


name = argv[0]; name = argv[0];
url = argv[1]; url = argv[1];

22
t/t5505-remote.sh
View File

@ -347,6 +347,21 @@ test_expect_success 'fetch mirrors do not act as mirrors during push' '
) )
' '


test_expect_success 'add fetch mirror with specific branches' '
git init --bare mirror-fetch/track &&
(cd mirror-fetch/track &&
git remote add --mirror=fetch -t heads/new parent ../parent
)
'

test_expect_success 'fetch mirror respects specific branches' '
(cd mirror-fetch/track &&
git fetch parent &&
git rev-parse --verify refs/heads/new &&
test_must_fail git rev-parse --verify refs/heads/renamed
)
'

test_expect_success 'add --mirror=push' ' test_expect_success 'add --mirror=push' '
mkdir mirror-push && mkdir mirror-push &&
git init --bare mirror-push/public && git init --bare mirror-push/public &&
@ -382,6 +397,13 @@ test_expect_success 'push mirrors do not act as mirrors during fetch' '
) )
' '


test_expect_success 'push mirrors do not allow you to specify refs' '
git init mirror-push/track &&
(cd mirror-push/track &&
test_must_fail git remote add --mirror=push -t new public ../public
)
'

test_expect_success 'add alt && prune' ' test_expect_success 'add alt && prune' '
(mkdir alttst && (mkdir alttst &&
cd alttst && cd alttst &&