diff options
| -rw-r--r-- | Documentation/config/fetch.txt | 25 | ||||
| -rw-r--r-- | fetch-negotiator.c | 2 | ||||
| -rw-r--r-- | repo-settings.c | 9 | ||||
| -rw-r--r-- | repository.h | 2 | ||||
| -rwxr-xr-x | t/t5500-fetch-pack.sh | 24 |
5 files changed, 44 insertions, 18 deletions
diff --git a/Documentation/config/fetch.txt b/Documentation/config/fetch.txt index 63748c02b7..cd65d236b4 100644 --- a/Documentation/config/fetch.txt +++ b/Documentation/config/fetch.txt @@ -56,18 +56,19 @@ fetch.output:: OUTPUT in linkgit:git-fetch[1] for detail. fetch.negotiationAlgorithm:: - Control how information about the commits in the local repository is - sent when negotiating the contents of the packfile to be sent by the - server. Set to "skipping" to use an algorithm that skips commits in an - effort to converge faster, but may result in a larger-than-necessary - packfile; or set to "noop" to not send any information at all, which - will almost certainly result in a larger-than-necessary packfile, but - will skip the negotiation step. - The default is "default" which instructs Git to use the default algorithm - that never skips commits (unless the server has acknowledged it or one - of its descendants). If `feature.experimental` is enabled, then this - setting defaults to "skipping". - Unknown values will cause 'git fetch' to error out. + Control how information about the commits in the local repository + is sent when negotiating the contents of the packfile to be sent by + the server. Set to "consecutive" to use an algorithm that walks + over consecutive commits checking each one. Set to "skipping" to + use an algorithm that skips commits in an effort to converge + faster, but may result in a larger-than-necessary packfile; or set + to "noop" to not send any information at all, which will almost + certainly result in a larger-than-necessary packfile, but will skip + the negotiation step. Set to "default" to override settings made + previously and use the default behaviour. The default is normally + "consecutive", but if `feature.experimental` is true, then the + default is "skipping". Unknown values will cause 'git fetch' to + error out. + See also the `--negotiate-only` and `--negotiation-tip` options to linkgit:git-fetch[1]. diff --git a/fetch-negotiator.c b/fetch-negotiator.c index 273390229f..874797d767 100644 --- a/fetch-negotiator.c +++ b/fetch-negotiator.c @@ -18,7 +18,7 @@ void fetch_negotiator_init(struct repository *r, noop_negotiator_init(negotiator); return; - case FETCH_NEGOTIATION_DEFAULT: + case FETCH_NEGOTIATION_CONSECUTIVE: default_negotiator_init(negotiator); return; } diff --git a/repo-settings.c b/repo-settings.c index 00ca5571a1..b4fbd16cdc 100644 --- a/repo-settings.c +++ b/repo-settings.c @@ -26,7 +26,7 @@ void prepare_repo_settings(struct repository *r) /* Defaults */ r->settings.index_version = -1; r->settings.core_untracked_cache = UNTRACKED_CACHE_KEEP; - r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_DEFAULT; + r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE; /* Booleans config or default, cascades to other settings */ repo_cfg_bool(r, "feature.manyfiles", &manyfiles, 0); @@ -81,10 +81,17 @@ void prepare_repo_settings(struct repository *r) } if (!repo_config_get_string(r, "fetch.negotiationalgorithm", &strval)) { + int fetch_default = r->settings.fetch_negotiation_algorithm; if (!strcasecmp(strval, "skipping")) r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING; else if (!strcasecmp(strval, "noop")) r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_NOOP; + else if (!strcasecmp(strval, "consecutive")) + r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE; + else if (!strcasecmp(strval, "default")) + r->settings.fetch_negotiation_algorithm = fetch_default; + else + die("unknown fetch negotiation algorithm '%s'", strval); } /* diff --git a/repository.h b/repository.h index 2b5cf97f31..ca837cb9e9 100644 --- a/repository.h +++ b/repository.h @@ -20,7 +20,7 @@ enum untracked_cache_setting { }; enum fetch_negotiation_setting { - FETCH_NEGOTIATION_DEFAULT, + FETCH_NEGOTIATION_CONSECUTIVE, FETCH_NEGOTIATION_SKIPPING, FETCH_NEGOTIATION_NOOP, }; diff --git a/t/t5500-fetch-pack.sh b/t/t5500-fetch-pack.sh index f0dc4e6968..ee6d2dde9f 100755 --- a/t/t5500-fetch-pack.sh +++ b/t/t5500-fetch-pack.sh @@ -927,7 +927,8 @@ test_expect_success 'fetching deepen' ' ) ' -test_expect_success 'use ref advertisement to prune "have" lines sent' ' +test_negotiation_algorithm_default () { + test_when_finished rm -rf clientv0 clientv2 && rm -rf server client && git init server && test_commit -C server both_have_1 && @@ -946,7 +947,7 @@ test_expect_success 'use ref advertisement to prune "have" lines sent' ' rm -f trace && cp -r client clientv0 && GIT_TRACE_PACKET="$(pwd)/trace" git -C clientv0 \ - fetch origin server_has both_have_2 && + "$@" fetch origin server_has both_have_2 && grep "have $(git -C client rev-parse client_has)" trace && grep "have $(git -C client rev-parse both_have_2)" trace && ! grep "have $(git -C client rev-parse both_have_2^)" trace && @@ -954,10 +955,27 @@ test_expect_success 'use ref advertisement to prune "have" lines sent' ' rm -f trace && cp -r client clientv2 && GIT_TRACE_PACKET="$(pwd)/trace" git -C clientv2 -c protocol.version=2 \ - fetch origin server_has both_have_2 && + "$@" fetch origin server_has both_have_2 && grep "have $(git -C client rev-parse client_has)" trace && grep "have $(git -C client rev-parse both_have_2)" trace && ! grep "have $(git -C client rev-parse both_have_2^)" trace +} + +test_expect_success 'use ref advertisement to prune "have" lines sent' ' + test_negotiation_algorithm_default +' + +test_expect_success 'same as last but with config overrides' ' + test_negotiation_algorithm_default \ + -c feature.experimental=true \ + -c fetch.negotiationAlgorithm=consecutive +' + +test_expect_success 'ensure bogus fetch.negotiationAlgorithm yields error' ' + test_when_finished rm -rf clientv0 && + cp -r client clientv0 && + test_must_fail git -C clientv0 --fetch.negotiationAlgorithm=bogus \ + fetch origin server_has both_have_2 ' test_expect_success 'filtering by size' ' |