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upload-pack: optionally allow fetching any sha1

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It seems a little silly to do a reachabilty check in the case where we
trust the user to access absolutely everything in the repository.

Also, it's racy in a distributed system -- perhaps one server
advertises a ref, but another has since had a force-push to that ref,
and perhaps the two HTTP requests end up directed to these different
servers.

Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
David Turner
2016-11-11 12:23:48 -05:00
committed by Junio C Hamano
parent 296b847c0d
commit f8edeaa05d
4 changed files with 39 additions and 4 deletions
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22
t/t5551-http-fetch-smart.sh
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@ -306,6 +306,28 @@ test_expect_success 'test allowreachablesha1inwant with unreachable' '
test_must_fail git -C test_reachable.git fetch origin "$(git rev-parse HEAD)"
'
test_expect_success 'test allowanysha1inwant with unreachable' '
test_when_finished "rm -rf test_reachable.git; git reset --hard $(git rev-parse HEAD)" &&
#create unreachable sha
echo content >file2 &&
git add file2 &&
git commit -m two &&
git push public HEAD:refs/heads/doomed &&
git push public :refs/heads/doomed &&
server="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
master_sha=$(git -C "$server" rev-parse refs/heads/master) &&
git -C "$server" config uploadpack.allowreachablesha1inwant 1 &&
git init --bare test_reachable.git &&
git -C test_reachable.git remote add origin "$HTTPD_URL/smart/repo.git" &&
test_must_fail git -C test_reachable.git fetch origin "$(git rev-parse HEAD)" &&
git -C "$server" config uploadpack.allowanysha1inwant 1 &&
git -C test_reachable.git fetch origin "$(git rev-parse HEAD)"
'
test_expect_success EXPENSIVE 'http can handle enormous ref negotiation' '
(
cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&