From 02f7914734eb8360cf314d887931c5d5ad0d8046 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Sat, 17 Dec 2011 05:45:39 -0500 Subject: remote-curl: don't pass back fake refs When receive-pack advertises its list of refs, it generally hides the capabilities information after a NUL at the end of the first ref. However, when we have an empty repository, there are no refs, and therefore receive-pack writes a fake ref "capabilities^{}" with the capabilities afterwards. On the client side, git reads the result with get_remote_heads(). We pick the capabilities from the end of the line, and then call check_ref() to make sure the ref name is valid. We see that it isn't, and don't bother adding it to our list of refs. However, the call to check_ref() is enabled by passing the REF_NORMAL flag to get_remote_heads. For the regular git transport, we pass REF_NORMAL in get_refs_via_connect() if we are doing a push (since only receive-pack uses this fake ref). But in remote-curl, we never use this flag, and we accept the fake ref as a real one, passing it back from the helper to the parent git-push. Most of the time this bug goes unnoticed, as the fake ref won't match our refspecs. However, if "--mirror" is used, then we see it as remote cruft to be pruned, and try to pass along a deletion refspec for it. Of course this refspec has bogus syntax (because of the ^{}), and the helper complains, aborting the push. Let's have remote-curl mirror what the builtin get_refs_via_connect() does (at least for the case of using git protocol; we can leave the dumb info/refs reader as it is). This also fixes pushing with --mirror to a smart-http remote that uses alternates. The fake ".have" refs the server gives to avoid unnecessary network transfer has a similar bad interactions with the machinery. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- t/t5541-http-push.sh | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 't') diff --git a/t/t5541-http-push.sh b/t/t5541-http-push.sh index a73c82635f..9b85d420c3 100755 --- a/t/t5541-http-push.sh +++ b/t/t5541-http-push.sh @@ -154,5 +154,37 @@ test_expect_success 'push (chunked)' ' test $HEAD = $(git rev-parse --verify HEAD)) ' +test_expect_success 'push --all can push to empty repo' ' + d=$HTTPD_DOCUMENT_ROOT_PATH/empty-all.git && + git init --bare "$d" && + git --git-dir="$d" config http.receivepack true && + git push --all "$HTTPD_URL"/smart/empty-all.git +' + +test_expect_success 'push --mirror can push to empty repo' ' + d=$HTTPD_DOCUMENT_ROOT_PATH/empty-mirror.git && + git init --bare "$d" && + git --git-dir="$d" config http.receivepack true && + git push --mirror "$HTTPD_URL"/smart/empty-mirror.git +' + +test_expect_success 'push --all to repo with alternates' ' + s=$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git && + d=$HTTPD_DOCUMENT_ROOT_PATH/alternates-all.git && + git clone --bare --shared "$s" "$d" && + git --git-dir="$d" config http.receivepack true && + git --git-dir="$d" repack -adl && + git push --all "$HTTPD_URL"/smart/alternates-all.git +' + +test_expect_success 'push --mirror to repo with alternates' ' + s=$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git && + d=$HTTPD_DOCUMENT_ROOT_PATH/alternates-mirror.git && + git clone --bare --shared "$s" "$d" && + git --git-dir="$d" config http.receivepack true && + git --git-dir="$d" repack -adl && + git push --mirror "$HTTPD_URL"/smart/alternates-mirror.git +' + stop_httpd test_done -- cgit v1.2.1