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Diffstat (limited to 't/t5616-partial-clone.sh')
| -rwxr-xr-x | t/t5616-partial-clone.sh | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/t/t5616-partial-clone.sh b/t/t5616-partial-clone.sh index 79f7b65f8c..fea56cda6d 100755 --- a/t/t5616-partial-clone.sh +++ b/t/t5616-partial-clone.sh @@ -46,6 +46,14 @@ test_expect_success 'do partial clone 1' ' test "$(git -C pc1 config --local remote.origin.partialclonefilter)" = "blob:none" ' +test_expect_success 'verify that .promisor file contains refs fetched' ' + ls pc1/.git/objects/pack/pack-*.promisor >promisorlist && + test_line_count = 1 promisorlist && + git -C srv.bare rev-list HEAD >headhash && + grep "$(cat headhash) HEAD" $(cat promisorlist) && + grep "$(cat headhash) refs/heads/master" $(cat promisorlist) +' + # checkout master to force dynamic object fetch of blobs at HEAD. test_expect_success 'verify checkout with dynamic object fetch' ' git -C pc1 rev-list --quiet --objects --missing=print HEAD >observed && @@ -296,6 +304,76 @@ test_expect_success 'partial clone with unresolvable sparse filter fails cleanly test_i18ngrep "unable to parse sparse filter data in" err ' +setup_triangle () { + rm -rf big-blob.txt server client promisor-remote && + + printf "line %d\n" $(test_seq 1 100) >big-blob.txt && + + # Create a server with 2 commits: a commit with a big blob and a child + # commit with an incremental change. Also, create a partial clone + # client that only contains the first commit. + git init server && + git -C server config --local uploadpack.allowfilter 1 && + cp big-blob.txt server && + git -C server add big-blob.txt && + git -C server commit -m "initial" && + git clone --bare --filter=tree:0 "file://$(pwd)/server" client && + echo another line >>server/big-blob.txt && + git -C server commit -am "append line to big blob" && + + # Create a promisor remote that only contains the blob from the first + # commit, and set it as the promisor remote of client. Thus, whenever + # the client lazy fetches, the lazy fetch will succeed only if it is + # for this blob. + git init promisor-remote && + test_commit -C promisor-remote one && # so that ref advertisement is not empty + git -C promisor-remote config --local uploadpack.allowanysha1inwant 1 && + git -C promisor-remote hash-object -w --stdin <big-blob.txt && + git -C client remote set-url origin "file://$(pwd)/promisor-remote" +} + +# NEEDSWORK: The tests beginning with "fetch lazy-fetches" below only +# test that "fetch" avoid fetching trees and blobs, but not commits or +# tags. Revisit this if Git is ever taught to support partial clones +# with commits and/or tags filtered out. + +test_expect_success 'fetch lazy-fetches only to resolve deltas' ' + setup_triangle && + + # Exercise to make sure it works. Git will not fetch anything from the + # promisor remote other than for the big blob (because it needs to + # resolve the delta). + GIT_TRACE_PACKET="$(pwd)/trace" git -C client \ + fetch "file://$(pwd)/server" master && + + # Verify the assumption that the client needed to fetch the delta base + # to resolve the delta. + git hash-object big-blob.txt >hash && + grep "want $(cat hash)" trace +' + +test_expect_success 'fetch lazy-fetches only to resolve deltas, protocol v2' ' + setup_triangle && + + git -C server config --local protocol.version 2 && + git -C client config --local protocol.version 2 && + git -C promisor-remote config --local protocol.version 2 && + + # Exercise to make sure it works. Git will not fetch anything from the + # promisor remote other than for the big blob (because it needs to + # resolve the delta). + GIT_TRACE_PACKET="$(pwd)/trace" git -C client \ + fetch "file://$(pwd)/server" master && + + # Verify that protocol version 2 was used. + grep "fetch< version 2" trace && + + # Verify the assumption that the client needed to fetch the delta base + # to resolve the delta. + git hash-object big-blob.txt >hash && + grep "want $(cat hash)" trace +' + . "$TEST_DIRECTORY"/lib-httpd.sh start_httpd |