git/t/t5408-send-pack-stdin.sh
Jeff King 26be19ba8d send-pack: take refspecs over stdin
Pushing a large number of refs works over most transports,
because we implement send-pack as an internal function.
However, it can sometimes fail when pushing over http,
because we have to spawn "git send-pack --stateless-rpc" to
do the heavy lifting, and we pass each refspec on the
command line. This can cause us to overflow the OS limits on
the size of the command line for a large push.

We can solve this by giving send-pack a --stdin option and
using it from remote-curl.  We already dealt with this on
the fetch-pack side in 078b895 (fetch-pack: new --stdin
option to read refs from stdin, 2012-04-02). The stdin
option (and in particular, its use of packet-lines for
stateless-rpc input) is modeled after that solution.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-26 12:58:02 -07:00

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#!/bin/sh
test_description='send-pack --stdin tests'
. ./test-lib.sh
create_ref () {
tree=$(git write-tree) &&
test_tick &&
commit=$(echo "$1" | git commit-tree $tree) &&
git update-ref "$1" $commit
}
clear_remote () {
rm -rf remote.git &&
git init --bare remote.git
}
verify_push () {
git rev-parse "$1" >expect &&
git --git-dir=remote.git rev-parse "${2:-$1}" >actual &&
test_cmp expect actual
}
test_expect_success 'setup refs' '
cat >refs <<-\EOF &&
refs/heads/A
refs/heads/C
refs/tags/D
refs/heads/B
refs/tags/E
EOF
for i in $(cat refs); do
create_ref $i || return 1
done
'
# sanity check our setup
test_expect_success 'refs on cmdline' '
clear_remote &&
git send-pack remote.git $(cat refs) &&
for i in $(cat refs); do
verify_push $i || return 1
done
'
test_expect_success 'refs over stdin' '
clear_remote &&
git send-pack remote.git --stdin <refs &&
for i in $(cat refs); do
verify_push $i || return 1
done
'
test_expect_success 'stdin lines are full refspecs' '
clear_remote &&
echo "A:other" >input &&
git send-pack remote.git --stdin <input &&
verify_push refs/heads/A refs/heads/other
'
test_expect_success 'stdin mixed with cmdline' '
clear_remote &&
echo A >input &&
git send-pack remote.git --stdin B <input &&
verify_push A &&
verify_push B
'
test_expect_success 'cmdline refs written in order' '
clear_remote &&
test_must_fail git send-pack remote.git A:foo B:foo &&
verify_push A foo
'
test_expect_success '--stdin refs come after cmdline' '
clear_remote &&
echo A:foo >input &&
test_must_fail git send-pack remote.git --stdin B:foo <input &&
verify_push B foo
'
test_expect_success 'refspecs and --mirror do not mix (cmdline)' '
clear_remote &&
test_must_fail git send-pack remote.git --mirror $(cat refs)
'
test_expect_success 'refspecs and --mirror do not mix (stdin)' '
clear_remote &&
test_must_fail git send-pack remote.git --mirror --stdin <refs
'
test_done