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author | Junio C Hamano <gitster@pobox.com> | 2014-03-18 13:59:37 -0700 |
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committer | Junio C Hamano <gitster@pobox.com> | 2014-03-18 13:59:37 -0700 |
commit | 1030d4c8f0ee5aaee9a1a74416314ec811672a86 (patch) | |
tree | fd47bd28da49943b719b1b83bf89f03c54e3210e | |
parent | 6a0556e4c0d0174d4c1760469e0f4d348b5ca844 (diff) | |
parent | 0232852b06cb000a3b1f5f48676c8b4d084f18ea (diff) | |
download | git-1030d4c8f0ee5aaee9a1a74416314ec811672a86.tar.gz git-1030d4c8f0ee5aaee9a1a74416314ec811672a86.tar.xz |
Merge branch 'nd/http-fetch-shallow-fix' into maint
Attempting to deepen a shallow repository by fetching over smart
HTTP transport failed in the protocol exchange, when no-done
extension was used. The fetching side waited for the list of
shallow boundary commits after the sending end stopped talking to
it.
* nd/http-fetch-shallow-fix:
t5537: move http tests out to t5539
fetch-pack: fix deepen shallow over smart http with no-done cap
protocol-capabilities.txt: document no-done
protocol-capabilities.txt: refer multi_ack_detailed back to pack-protocol.txt
pack-protocol.txt: clarify 'obj-id' in the last ACK after 'done'
test: rename http fetch and push test files
tests: auto-set LIB_HTTPD_PORT from test name
-rw-r--r-- | Documentation/technical/pack-protocol.txt | 3 | ||||
-rw-r--r-- | Documentation/technical/protocol-capabilities.txt | 18 | ||||
-rw-r--r-- | fetch-pack.c | 3 | ||||
-rw-r--r-- | t/lib-httpd.sh | 2 | ||||
-rwxr-xr-x | t/t5537-fetch-shallow.sh | 28 | ||||
-rwxr-xr-x | t/t5538-push-shallow.sh | 1 | ||||
-rwxr-xr-x | t/t5539-fetch-http-shallow.sh | 82 | ||||
-rwxr-xr-x | t/t5540-http-push-webdav.sh (renamed from t/t5540-http-push.sh) | 1 | ||||
-rwxr-xr-x | t/t5541-http-push-smart.sh (renamed from t/t5541-http-push.sh) | 1 | ||||
-rwxr-xr-x | t/t5550-http-fetch-dumb.sh (renamed from t/t5550-http-fetch.sh) | 1 | ||||
-rwxr-xr-x | t/t5551-http-fetch-smart.sh (renamed from t/t5551-http-fetch.sh) | 1 | ||||
-rwxr-xr-x | t/t5561-http-backend.sh | 1 |
12 files changed, 105 insertions, 37 deletions
diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt index c73b62f5e..39c64105a 100644 --- a/Documentation/technical/pack-protocol.txt +++ b/Documentation/technical/pack-protocol.txt @@ -338,7 +338,8 @@ during a prior round. This helps to ensure that at least one common ancestor is found before we give up entirely. Once the 'done' line is read from the client, the server will either -send a final 'ACK obj-id' or it will send a 'NAK'. The server only sends +send a final 'ACK obj-id' or it will send a 'NAK'. 'obj-id' is the object +name of the last commit determined to be common. The server only sends ACK after 'done' if there is at least one common base and multi_ack or multi_ack_detailed is enabled. The server always sends NAK after 'done' if there is no common base found. diff --git a/Documentation/technical/protocol-capabilities.txt b/Documentation/technical/protocol-capabilities.txt index e3e792476..e17434384 100644 --- a/Documentation/technical/protocol-capabilities.txt +++ b/Documentation/technical/protocol-capabilities.txt @@ -69,6 +69,24 @@ ends. Without multi_ack the client would have sent that c-b-a chain anyway, interleaved with S-R-Q. +multi_ack_detailed +------------------ +This is an extension of multi_ack that permits client to better +understand the server's in-memory state. See pack-protocol.txt, +section "Packfile Negotiation" for more information. + +no-done +------- +This capability should only be used with the smart HTTP protocol. If +multi_ack_detailed and no-done are both present, then the sender is +free to immediately send a pack following its first "ACK obj-id ready" +message. + +Without no-done in the smart HTTP protocol, the server session would +end and the client has to make another trip to send "done" before +the server can send the pack. no-done removes the last round and +thus slightly reduces latency. + thin-pack --------- diff --git a/fetch-pack.c b/fetch-pack.c index 90fdd4982..f061f1fe8 100644 --- a/fetch-pack.c +++ b/fetch-pack.c @@ -439,7 +439,8 @@ done: } strbuf_release(&req_buf); - consume_shallow_list(args, fd[0]); + if (!got_ready || !no_done) + consume_shallow_list(args, fd[0]); while (flushes || multi_ack) { int ack = get_ack(fd[0], result_sha1); if (ack) { diff --git a/t/lib-httpd.sh b/t/lib-httpd.sh index bfdff2a8c..b43162ea2 100644 --- a/t/lib-httpd.sh +++ b/t/lib-httpd.sh @@ -64,7 +64,7 @@ case $(uname) in esac LIB_HTTPD_PATH=${LIB_HTTPD_PATH-"$DEFAULT_HTTPD_PATH"} -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'8111'} +LIB_HTTPD_PORT=${LIB_HTTPD_PORT-${this_test#t}} TEST_PATH="$TEST_DIRECTORY"/lib-httpd HTTPD_ROOT_PATH="$PWD"/httpd diff --git a/t/t5537-fetch-shallow.sh b/t/t5537-fetch-shallow.sh index b0fa7387c..3ae9092f5 100755 --- a/t/t5537-fetch-shallow.sh +++ b/t/t5537-fetch-shallow.sh @@ -173,32 +173,4 @@ EOF ) ' -if test -n "$NO_CURL" -o -z "$GIT_TEST_HTTPD"; then - say 'skipping remaining tests, git built without http support' - test_done -fi - -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5537'} -. "$TEST_DIRECTORY"/lib-httpd.sh -start_httpd - -test_expect_success 'clone http repository' ' - git clone --bare --no-local shallow "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" && - git clone $HTTPD_URL/smart/repo.git clone && - ( - cd clone && - git fsck && - git log --format=%s origin/master >actual && - cat <<EOF >expect && -7 -6 -5 -4 -3 -EOF - test_cmp expect actual - ) -' - -stop_httpd test_done diff --git a/t/t5538-push-shallow.sh b/t/t5538-push-shallow.sh index 0a6e40f14..8e54ac574 100755 --- a/t/t5538-push-shallow.sh +++ b/t/t5538-push-shallow.sh @@ -126,7 +126,6 @@ if test -n "$NO_CURL" -o -z "$GIT_TEST_HTTPD"; then test_done fi -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5537'} . "$TEST_DIRECTORY"/lib-httpd.sh start_httpd diff --git a/t/t5539-fetch-http-shallow.sh b/t/t5539-fetch-http-shallow.sh new file mode 100755 index 000000000..94553e103 --- /dev/null +++ b/t/t5539-fetch-http-shallow.sh @@ -0,0 +1,82 @@ +#!/bin/sh + +test_description='fetch/clone from a shallow clone over http' + +. ./test-lib.sh + +if test -n "$NO_CURL"; then + skip_all='skipping test, git built without http support' + test_done +fi + +. "$TEST_DIRECTORY"/lib-httpd.sh +start_httpd + +commit() { + echo "$1" >tracked && + git add tracked && + git commit -m "$1" +} + +test_expect_success 'setup shallow clone' ' + commit 1 && + commit 2 && + commit 3 && + commit 4 && + commit 5 && + commit 6 && + commit 7 && + git clone --no-local --depth=5 .git shallow && + git config --global transfer.fsckObjects true +' + +test_expect_success 'clone http repository' ' + git clone --bare --no-local shallow "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" && + git clone $HTTPD_URL/smart/repo.git clone && + ( + cd clone && + git fsck && + git log --format=%s origin/master >actual && + cat <<EOF >expect && +7 +6 +5 +4 +3 +EOF + test_cmp expect actual + ) +' + +# This test is tricky. We need large enough "have"s that fetch-pack +# will put pkt-flush in between. Then we need a "have" the server +# does not have, it'll send "ACK %s ready" +test_expect_success 'no shallow lines after receiving ACK ready' ' + ( + cd shallow && + for i in $(test_seq 15) + do + git checkout --orphan unrelated$i && + test_commit unrelated$i && + git push -q "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \ + refs/heads/unrelated$i:refs/heads/unrelated$i && + git push -q ../clone/.git \ + refs/heads/unrelated$i:refs/heads/unrelated$i || + exit 1 + done && + git checkout master && + test_commit new && + git push "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" master + ) && + ( + cd clone && + git checkout --orphan newnew && + test_commit new-too && + GIT_TRACE_PACKET="$TRASH_DIRECTORY/trace" git fetch --depth=2 && + grep "fetch-pack< ACK .* ready" ../trace && + ! grep "fetch-pack> done" ../trace + ) +' + +stop_httpd +test_done diff --git a/t/t5540-http-push.sh b/t/t5540-http-push-webdav.sh index 5b0198cbc..8d7b3c57e 100755 --- a/t/t5540-http-push.sh +++ b/t/t5540-http-push-webdav.sh @@ -16,7 +16,6 @@ then fi LIB_HTTPD_DAV=t -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5540'} . "$TEST_DIRECTORY"/lib-httpd.sh ROOT_PATH="$PWD" start_httpd diff --git a/t/t5541-http-push.sh b/t/t5541-http-push-smart.sh index bfd241ea8..73af16f48 100755 --- a/t/t5541-http-push.sh +++ b/t/t5541-http-push-smart.sh @@ -12,7 +12,6 @@ if test -n "$NO_CURL"; then fi ROOT_PATH="$PWD" -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5541'} . "$TEST_DIRECTORY"/lib-httpd.sh . "$TEST_DIRECTORY"/lib-terminal.sh start_httpd diff --git a/t/t5550-http-fetch.sh b/t/t5550-http-fetch-dumb.sh index 839262471..1a3a2b6c1 100755 --- a/t/t5550-http-fetch.sh +++ b/t/t5550-http-fetch-dumb.sh @@ -8,7 +8,6 @@ if test -n "$NO_CURL"; then test_done fi -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5550'} . "$TEST_DIRECTORY"/lib-httpd.sh start_httpd diff --git a/t/t5551-http-fetch.sh b/t/t5551-http-fetch-smart.sh index a124efe11..e07eaf35f 100755 --- a/t/t5551-http-fetch.sh +++ b/t/t5551-http-fetch-smart.sh @@ -8,7 +8,6 @@ if test -n "$NO_CURL"; then test_done fi -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5551'} . "$TEST_DIRECTORY"/lib-httpd.sh start_httpd diff --git a/t/t5561-http-backend.sh b/t/t5561-http-backend.sh index b5d7fbc38..d23fb0238 100755 --- a/t/t5561-http-backend.sh +++ b/t/t5561-http-backend.sh @@ -8,7 +8,6 @@ if test -n "$NO_CURL"; then test_done fi -LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5561'} . "$TEST_DIRECTORY"/lib-httpd.sh start_httpd |