Re: [PATCH v2 5/8] hook: allow disabling config hooks

> diff --git a/Documentation/config/hook.adoc b/Documentation/config/hook.adoc
> index 9faafe3016..0cda4745a6 100644
> --- a/Documentation/config/hook.adoc
> +++ b/Documentation/config/hook.adoc
> @@ -13,3 +13,10 @@ hook.<name>.event::
>  	specified event, the associated `hook.<name>.command` is executed.
>  	This is a multi-valued key. To run `hook.<name>` on multiple
>  	events, specify the key more than once. See linkgit:git-hook[1].
> +
> +hook.<name>.enabled::
> +	Whether the hook `hook.<name>` is enabled. Defaults to `true`.
> +	Set to `false` to disable the hook without removing its
> +	configuration. This is particularly useful when a hook is defined
> +	in a system or global config file and needs to be disabled for a
> +	specific repository. See linkgit:git-hook[1].

> diff --git a/hook.c b/hook.c
> index 8a9b405f76..35c24bf33d 100644
> --- a/hook.c
> +++ b/hook.c
> @@ -164,6 +164,21 @@ static int hook_config_lookup_all(const char *key, const char *value,
>  		char *old = strmap_put(&data->commands, hook_name,
>  				       xstrdup(value));
>  		free(old);
> +	} else if (!strcmp(subkey, "enabled")) {
> +		switch (git_parse_maybe_bool(value)) {
> +		case 0: /* disabled */
> +			if (!unsorted_string_list_lookup(&data->disabled_hooks,
> +							 hook_name))
> +				string_list_append(&data->disabled_hooks,
> +						   hook_name);
> +			break;
> +		case 1: /* enabled: undo a prior disabled entry */
> +			unsorted_string_list_remove(&data->disabled_hooks,
> +						    hook_name);
> +			break;
> +		default:
> +			break; /* ignore unrecognised values */
> +		}
>  	}