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2019-03-07tests: define GIT_TEST_PROTOCOL_VERSIONLibravatar Jonathan Tan1-2/+15
Define a GIT_TEST_PROTOCOL_VERSION environment variable meant to be used from tests. When set, this ensures protocol.version is at least the given value, allowing the entire test suite to be run as if this configuration is in place for all repositories. As of this patch, all tests pass whether GIT_TEST_PROTOCOL_VERSION is unset or set to 0. Some tests fail when GIT_TEST_PROTOCOL_VERSION is set to 1 or 2, but this will be dealt with in subsequent patches. This is based on work by Ævar Arnfjörð Bjarmason. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-14protocol: introduce enum protocol_version value protocol_v2Libravatar Brandon Williams1-0/+2
Introduce protocol_v2, a new value for 'enum protocol_version'. Subsequent patches will fill in the implementation of protocol_v2. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17protocol: introduce protocol extension mechanismsLibravatar Brandon Williams1-0/+79
Create protocol.{c,h} and provide functions which future servers and clients can use to determine which protocol to use or is being used. Also introduce the 'GIT_PROTOCOL' environment variable which will be used to communicate a colon separated list of keys with optional values to a server. Unknown keys and values must be tolerated. This mechanism is used to communicate which version of the wire protocol a client would like to use with a server. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>