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authorJosh Steadmon <steadmon@google.com>2021-08-10 20:20:39 +0300
committerJunio C Hamano <gitster@pobox.com>2021-08-10 21:46:33 +0300
commit626beebdf85a6ea5561dd8a0c912c9e9fb5622b4 (patch)
treef089829c7587db5dba975b9c17323e9a488f5902
parent66262451ec94d30ac4b80eb3123549cf7a788afd (diff)
connect, protocol: log negotiated protocol version
It is useful for performance monitoring and debugging purposes to know the wire protocol used for remote operations. This may differ from the version set in local configuration due to differences in version and/or configuration between the server and the client. Therefore, log the negotiated wire protocol version via trace2, for both clients and servers. Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--connect.c2
-rw-r--r--protocol.c2
-rwxr-xr-xt/t5705-session-id-in-capabilities.sh11
3 files changed, 15 insertions, 0 deletions
diff --git a/connect.c b/connect.c
index 70b13389ba..aff13a270e 100644
--- a/connect.c
+++ b/connect.c
@@ -164,6 +164,8 @@ enum protocol_version discover_version(struct packet_reader *reader)
BUG("unknown protocol version");
}
+ trace2_data_intmax("transfer", NULL, "negotiated-version", version);
+
return version;
}
diff --git a/protocol.c b/protocol.c
index 052d7edbb9..c53f7df5be 100644
--- a/protocol.c
+++ b/protocol.c
@@ -73,6 +73,8 @@ enum protocol_version determine_protocol_version_server(void)
string_list_clear(&list, 0);
}
+ trace2_data_intmax("transfer", NULL, "negotiated-version", version);
+
return version;
}
diff --git a/t/t5705-session-id-in-capabilities.sh b/t/t5705-session-id-in-capabilities.sh
index f1d189d5bc..eb8c79aafd 100755
--- a/t/t5705-session-id-in-capabilities.sh
+++ b/t/t5705-session-id-in-capabilities.sh
@@ -73,6 +73,17 @@ do
grep \"key\":\"server-sid\" tr2-client-events &&
grep \"key\":\"client-sid\" tr2-server-events
'
+
+ test_expect_success "client & server log negotiated version (v${PROTO})" '
+ test_when_finished "rm -rf local tr2-client-events tr2-server-events" &&
+ cp -r "$LOCAL_PRISTINE" local &&
+ GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \
+ git -c protocol.version=$PROTO -C local fetch \
+ --upload-pack "GIT_TRACE2_EVENT=\"$(pwd)/tr2-server-events\" git-upload-pack" \
+ origin &&
+ grep \"key\":\"negotiated-version\",\"value\":\"$PROTO\" tr2-client-events &&
+ grep \"key\":\"negotiated-version\",\"value\":\"$PROTO\" tr2-server-events
+ '
done
test_done