hook: warn when hook.<friendly-name>.jobs is set

Issue a warning when the user confuses the hook process and event namespaces by setting hook.<friendly-name>.jobs. Detect this by checking whether the name carrying .jobs also has .command, .event, or .parallel configured. Extract is_friendly_name() as a helper for this check, to be reused by future per-event config handling. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Adrian Ratiu committed Apr 10, 2026 at 12:06 UTC 5e57b209ff21bf1087dd8539c458737c89b03150
2 files changed +70
hook.c
+40
index d98b011563..0493993bbe 100644 --- a/hook.c +++ b/hook.c @@ -279,6 +279,44 @@ void hook_cache_clear(struct strmap *cache) strmap_clear(cache, 0); } +/* + * Return true if `name` is a hook friendly-name, i.e. it has at least one of + * .command, .event, or .parallel configured. These are the reliable clues + * that distinguish a friendly-name from an event name. Note: .enabled is + * deliberately excluded because it can appear under both namespaces. + */ +static int is_friendly_name(struct hook_all_config_cb *cb, const char *name) +{ + struct hashmap_iter iter; + struct strmap_entry *e; + + if (strmap_get(&cb->commands, name) || strmap_get(&cb->parallel_hooks, name)) + return 1; + + strmap_for_each_entry(&cb->event_hooks, &iter, e) { + if (unsorted_string_list_lookup(e->value, name)) + return 1; + } + + return 0; +} + +/* Warn if any name in event_jobs is also a hook friendly-name. */ +static void warn_jobs_on_friendly_names(struct hook_all_config_cb *cb_data) +{ + struct hashmap_iter iter; + struct strmap_entry *e; + + strmap_for_each_entry(&cb_data->event_jobs, &iter, e) { + if (is_friendly_name(cb_data, e->key)) + warning(_("hook.%s.jobs is set but '%s' looks like a " + "hook friendly-name, not an event name; " + "hook.<event>.jobs uses the event name " + "(e.g. hook.post-receive.jobs), so this " + "setting will be ignored"), e->key, e->key); + } +} + /* Populate `cache` with the complete hook configuration */ static void build_hook_config_map(struct repository *r, struct strmap *cache) { @@ -295,6 +333,8 @@ static void build_hook_config_map(struct repository *r, struct strmap *cache) /* Parse all configs in one run, capturing hook.* including hook.jobs. */ repo_config(r, hook_config_lookup_all, &cb_data); + warn_jobs_on_friendly_names(&cb_data); + /* Construct the cache from parsed configs. */ strmap_for_each_entry(&cb_data.event_hooks, &iter, e) { struct string_list *hook_names = e->value;
t/t1800-hook.sh
+30
index 24a3c92b6d..89fedc48ff 100755 --- a/t/t1800-hook.sh +++ b/t/t1800-hook.sh @@ -1028,4 +1028,34 @@ test_expect_success 'hook.<event>.jobs still requires hook.<name>.parallel=true' test_cmp expect hook.order ' +test_expect_success 'hook.<friendly-name>.jobs warns when name has .command' ' + test_config hook.my-hook.command "true" && + test_config hook.my-hook.jobs 2 && + git hook run --allow-unknown-hook-name --ignore-missing test-hook >out 2>err && + test_grep "hook.my-hook.jobs.*friendly-name" err +' + +test_expect_success 'hook.<friendly-name>.jobs warns when name has .event' ' + test_config hook.my-hook.event test-hook && + test_config hook.my-hook.command "true" && + test_config hook.my-hook.jobs 2 && + git hook run --allow-unknown-hook-name --ignore-missing test-hook >out 2>err && + test_grep "hook.my-hook.jobs.*friendly-name" err +' + +test_expect_success 'hook.<friendly-name>.jobs warns when name has .parallel' ' + test_config hook.my-hook.event test-hook && + test_config hook.my-hook.command "true" && + test_config hook.my-hook.parallel true && + test_config hook.my-hook.jobs 2 && + git hook run --allow-unknown-hook-name --ignore-missing test-hook >out 2>err && + test_grep "hook.my-hook.jobs.*friendly-name" err +' + +test_expect_success 'hook.<event>.jobs does not warn for a real event name' ' + test_config hook.test-hook.jobs 2 && + git hook run --allow-unknown-hook-name --ignore-missing test-hook >out 2>err && + test_grep ! "friendly-name" err +' + test_done