From: Derrick Stolee via GitGitGadget Date: Wed, 15 Apr 2026 15:14:23 GMT Subject: [PATCH v2 4/7] remote: add remote.*.negotiationRestrict config Message-ID: In-Reply-To: From: Derrick Stolee In a previous change, the --negotiation-restrict command-line option of 'git fetch' was added as a synonym of --negotiation-tips. Both of these options restrict the set of 'haves' the client can send as part of negotiation. This was previously not available via a configuration option. Add a new 'remote..negotiationRestrict' multi-valued config option that updates 'git fetch ' to use these restrictions by default. If the user provides even one --negotiation-restrict argument, then the config is ignored. Signed-off-by: Derrick Stolee --- Documentation/config/remote.adoc | 16 ++++++++++++++++ builtin/fetch.c | 24 ++++++++++++++++++++++-- remote.c | 6 ++++++ remote.h | 1 + t/t5510-fetch.sh | 22 ++++++++++++++++++++++ 5 files changed, 67 insertions(+), 2 deletions(-) diff --git a/Documentation/config/remote.adoc b/Documentation/config/remote.adoc index 91e46f66f5..5e8ac6cfdd 100644 --- a/Documentation/config/remote.adoc +++ b/Documentation/config/remote.adoc @@ -107,6 +107,22 @@ priority configuration file (e.g. `.git/config` in a repository) to clear the values inherited from a lower priority configuration files (e.g. `$HOME/.gitconfig`). +remote..negotiationRestrict:: + When negotiating with this remote during `git fetch` and `git push`, + restrict the commits advertised as "have" lines to only those + reachable from refs matching the given patterns. This multi-valued + config option behaves like `--negotiation-restrict` on the command + line. ++ +Each value is either an exact ref name (e.g. `refs/heads/release`) or a +glob pattern (e.g. `refs/heads/release/*`). The pattern syntax is the +same as for `--negotiation-restrict`. ++ +These config values are used as defaults for the `--negotiation-restrict` +command-line option. If `--negotiation-restrict` (or its synonym +`--negotiation-tip`) is specified on the command line, then the config +values are not used. + remote..followRemoteHEAD:: How linkgit:git-fetch[1] should handle updates to `remotes//HEAD` when fetching using the configured refspecs of a remote. diff --git a/builtin/fetch.c b/builtin/fetch.c index 4c3c5f2faa..57b2b667ff 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -1601,6 +1601,19 @@ static struct transport *prepare_transport(struct remote *remote, int deepen, else warning(_("ignoring %s because the protocol does not support it"), "--negotiation-restrict"); + } else if (remote->negotiation_restrict.nr) { + struct string_list_item *item; + for_each_string_list_item(item, &remote->negotiation_restrict) + string_list_append(&negotiation_tip, item->string); + if (transport->smart_options) + add_negotiation_restrict_tips(transport->smart_options); + else { + struct strbuf config_name = STRBUF_INIT; + strbuf_addf(&config_name, "remote.%s.negotiationRestrict", remote->name); + warning(_("ignoring %s because the protocol does not support it"), + config_name.buf); + strbuf_release(&config_name); + } } return transport; } @@ -2659,8 +2672,12 @@ int cmd_fetch(int argc, config.display_format = DISPLAY_FORMAT_PORCELAIN; } - if (negotiate_only && !negotiation_tip.nr) - die(_("--negotiate-only needs one or more --negotiation-restrict=*")); + if (negotiate_only && !negotiation_tip.nr) { + /* + * Defer this check: remote..negotiationRestrict may + * provide defaults in prepare_transport(). + */ + } if (deepen_relative) { if (deepen_relative < 0) @@ -2749,6 +2766,9 @@ int cmd_fetch(int argc, if (!remote) die(_("must supply remote when using --negotiate-only")); gtransport = prepare_transport(remote, 1, &filter_options); + if (!gtransport->smart_options || + !gtransport->smart_options->negotiation_restrict_tips) + die(_("--negotiate-only needs one or more --negotiation-restrict=*")); if (gtransport->smart_options) { gtransport->smart_options->acked_commits = &acked_commits; } else { diff --git a/remote.c b/remote.c index 7ca2a6501b..07cdf6434d 100644 --- a/remote.c +++ b/remote.c @@ -152,6 +152,7 @@ static struct remote *make_remote(struct remote_state *remote_state, refspec_init_push(&ret->push); refspec_init_fetch(&ret->fetch); string_list_init_dup(&ret->server_options); + string_list_init_dup(&ret->negotiation_restrict); ALLOC_GROW(remote_state->remotes, remote_state->remotes_nr + 1, remote_state->remotes_alloc); @@ -179,6 +180,7 @@ static void remote_clear(struct remote *remote) FREE_AND_NULL(remote->http_proxy); FREE_AND_NULL(remote->http_proxy_authmethod); string_list_clear(&remote->server_options, 0); + string_list_clear(&remote->negotiation_restrict, 0); } static void add_merge(struct branch *branch, const char *name) @@ -562,6 +564,10 @@ static int handle_config(const char *key, const char *value, } else if (!strcmp(subkey, "serveroption")) { return parse_transport_option(key, value, &remote->server_options); + } else if (!strcmp(subkey, "negotiationrestrict")) { + if (!value) + return config_error_nonbool(key); + string_list_append(&remote->negotiation_restrict, value); } else if (!strcmp(subkey, "followremotehead")) { const char *no_warn_branch; if (!strcmp(value, "never")) diff --git a/remote.h b/remote.h index fc052945ee..e6ec37c393 100644 --- a/remote.h +++ b/remote.h @@ -117,6 +117,7 @@ struct remote { char *http_proxy_authmethod; struct string_list server_options; + struct string_list negotiation_restrict; enum follow_remote_head_settings follow_remote_head; const char *no_warn_branch; diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh index dc3ce56d84..0d87494794 100755 --- a/t/t5510-fetch.sh +++ b/t/t5510-fetch.sh @@ -1485,6 +1485,28 @@ test_expect_success '--negotiation-restrict and --negotiation-tip can be mixed' check_negotiation_tip ' +test_expect_success 'remote..negotiationRestrict used as default' ' + setup_negotiation_tip server server 0 && + git -C client config --add remote.origin.negotiationRestrict alpha_1 && + git -C client config --add remote.origin.negotiationRestrict beta_1 && + GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \ + origin alpha_s beta_s && + check_negotiation_tip +' + +test_expect_success 'CLI --negotiation-restrict overrides remote config' ' + setup_negotiation_tip server server 0 && + git -C client config --add remote.origin.negotiationRestrict alpha_1 && + git -C client config --add remote.origin.negotiationRestrict beta_1 && + ALPHA_1=$(git -C client rev-parse alpha_1) && + GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \ + --negotiation-restrict=alpha_1 \ + origin alpha_s beta_s && + test_grep "fetch> have $ALPHA_1" trace && + BETA_1=$(git -C client rev-parse beta_1) && + test_grep ! "fetch> have $BETA_1" trace +' + test_expect_success SYMLINKS 'clone does not get confused by a D/F conflict' ' git init df-conflict && ( -- gitgitgadget