[Outreachy PATCH RFC 3/3] environment: move "branch.autoSetupMerge" into `struct config_values`
- From
Olamide Caleb Bello <belkid98@gmail.com>
- Date
- Jan 12, 2026, 12:59 UTC
- Message-ID
- <2ea3bd7816624bc03426ded68ddd1e9c15f19127.1768217572.git.belkid98@gmail.com>
- In-Reply-To
- <cover.1768217572.git.belkid98@gmail.com>
The config value `brach.autoSetupMerge` is parsed in `git_default_branch_config()` and stored in the global variable `git_branch_track`. This global variable can cause unexpected behaviours when multiple Git repos run in the the same process.
Move this value into `struct config_values` which holds all values parsed by `git_default_config()` and can be accessed per repo via `git_default_config()`. This would mean we do not have to remove code from `git_default_branch_config()`, thereby retaining the same behaviour.
Suggested-by: Phillip Wood <phillip.wood123@gmail.com> Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com> Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com> --- builtin/branch.c | 2 +- builtin/checkout.c | 2 +- builtin/push.c | 2 +- builtin/submodule--helper.c | 2 +- config.c | 5 +++++ config.h | 4 ++++ environment.c | 10 +++++----- repository.c | 1 + 8 files changed, 19 insertions(+), 9 deletions(-)
diff --git a/builtin/branch.c b/builtin/branch.c index c577b5d20f..6dde426e90 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -795,7 +795,7 @@ int cmd_branch(int argc, if (!sorting_options.nr) string_list_append(&sorting_options, "refname"); - track = git_branch_track; + track = the_repository->cfg_values->git_branch_track; head = refs_resolve_refdup(get_main_ref_store(the_repository), "HEAD", 0, &head_oid, NULL); diff --git a/builtin/checkout.c b/builtin/checkout.c index 261699e2f5..0b8aa6b45a 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1631,7 +1631,7 @@ static int checkout_branch(struct checkout_opts *opts, if (opts->track != BRANCH_TRACK_UNSPECIFIED) die(_("'%s' cannot be used with '%s'"), "--detach", "-t"); } else if (opts->track == BRANCH_TRACK_UNSPECIFIED) - opts->track = git_branch_track; + opts->track = the_repository->cfg_values->git_branch_track; if (new_branch_info->name && !new_branch_info->commit) die(_("Cannot switch branch to a non-commit '%s'"), diff --git a/builtin/push.c b/builtin/push.c index 5b6cebbb85..14967002ae 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -162,7 +162,7 @@ static NORETURN void die_push_simple(struct branch *branch, advice_pushdefault_maybe = _("\n" "To choose either option permanently, " "see push.default in 'git help config'.\n"); - if (git_branch_track != BRANCH_TRACK_SIMPLE) + if (the_repository->cfg_values->git_branch_track != BRANCH_TRACK_SIMPLE) advice_automergesimple_maybe = _("\n" "To avoid automatically configuring " "an upstream branch when its name\n" diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c index d537ab087a..0e2226b3c8 100644 --- a/builtin/submodule--helper.c +++ b/builtin/submodule--helper.c @@ -3128,7 +3128,7 @@ static int module_create_branch(int argc, const char **argv, const char *prefix, }; repo_config(the_repository, git_default_config, NULL); - track = git_branch_track; + track = the_repository->cfg_values->git_branch_track; argc = parse_options(argc, argv, prefix, options, usage, 0); if (argc != 3) diff --git a/config.c b/config.c index 8b882f64ae..c19df32ad6 100644 --- a/config.c +++ b/config.c @@ -1766,6 +1766,11 @@ void config_values_clear(struct config_values *cfg) free(cfg->attributes_file_path); } +void config_values_init_defaults(struct config_values *cfg) +{ + cfg->git_branch_track = BRANCH_TRACK_REMOTE; +} + void git_configset_init(struct config_set *set) { hashmap_init(&set->config_hash, config_set_element_cmp, NULL, 0); diff --git a/config.h b/config.h index 21d65c440e..62032346e3 100644 --- a/config.h +++ b/config.h @@ -5,6 +5,7 @@ #include "string-list.h" #include "repository.h" #include "parse.h" +#include "branch.h" /** * The config API gives callers a way to access Git configuration files @@ -142,6 +143,8 @@ struct config_values { char *attributes_file_path; int sparse_checkout; + /* branch config values */ + enum branch_track git_branch_track; }; #define CONFIG_CONTEXT_INIT { 0 } @@ -195,6 +198,7 @@ int git_config_from_blob_oid(config_fn_t fn, const char *name, void git_config_push_parameter(const char *text); void git_config_push_env(const char *spec); int git_config_from_parameters(config_fn_t fn, void *data); +void config_values_init_defaults(struct config_values *cfg); void config_values_clear(struct config_values *cfg); /* diff --git a/environment.c b/environment.c index 15b63cdc4a..207e63f519 100644 --- a/environment.c +++ b/environment.c @@ -66,7 +66,6 @@ enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; enum eol core_eol = EOL_UNSET; int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; char *check_roundtrip_encoding; -enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; enum rebase_setup_type autorebase = AUTOREBASE_NEVER; enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED; #ifndef OBJECT_CREATION_MODE @@ -607,18 +606,19 @@ static int git_default_i18n_config(const char *var, const char *value) static int git_default_branch_config(const char *var, const char *value) { + struct config_values *cfg = the_repository->cfg_values; if (!strcmp(var, "branch.autosetupmerge")) { if (value && !strcmp(value, "always")) { - git_branch_track = BRANCH_TRACK_ALWAYS; + cfg->git_branch_track = BRANCH_TRACK_ALWAYS; return 0; } else if (value && !strcmp(value, "inherit")) { - git_branch_track = BRANCH_TRACK_INHERIT; + cfg->git_branch_track = BRANCH_TRACK_INHERIT; return 0; } else if (value && !strcmp(value, "simple")) { - git_branch_track = BRANCH_TRACK_SIMPLE; + cfg->git_branch_track = BRANCH_TRACK_SIMPLE; return 0; } - git_branch_track = git_config_bool(var, value); + cfg->git_branch_track = git_config_bool(var, value); return 0; } if (!strcmp(var, "branch.autosetuprebase")) { diff --git a/repository.c b/repository.c index 3ad944e71c..98237eceaa 100644 --- a/repository.c +++ b/repository.c @@ -56,6 +56,7 @@ void initialize_repository(struct repository *repo) repo->parsed_objects = parsed_object_pool_new(repo); ALLOC_ARRAY(repo->index, 1); CALLOC_ARRAY(repo->cfg_values, 1); + config_values_init_defaults(repo->cfg_values); index_state_init(repo->index, repo); repo->check_deprecated_config = true;
-- 2.34.1