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Re: [PATCH v4 3/3] submodule: simplify decision tree whether to or not to fetch

From
Junio C Hamano <gitster@pobox.com>
Date
Oct 19, 2017, 00:36 UTC
Message-ID
<xmqqshegj7mo.fsf@gitster.mtv.corp.google.com>
In-Reply-To
<20171018180322.GA155019@google.com>
Brandon Williams <bmwill@google.com> writes:
> On 10/16, Heiko Voigt wrote:
>> To make extending this logic later easier.
>
> This makes things so much clearer, thanks!

I agree that it is clear to see what the code after the patch does, but the code before the patch is so convoluted to follow that it is a bit hard to see if the code before and after are doing the same thing, though ;-)

Show 105 quoted lines
>
>> 
>> Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
>> ---
>>  submodule.c | 74 ++++++++++++++++++++++++++++++-------------------------------
>>  1 file changed, 37 insertions(+), 37 deletions(-)
>> 
>> diff --git a/submodule.c b/submodule.c
>> index 71d1773e2e..82d206eb65 100644
>> --- a/submodule.c
>> +++ b/submodule.c
>> @@ -1187,6 +1187,31 @@ struct submodule_parallel_fetch {
>>  };
>>  #define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0}
>>  
>> +static int get_fetch_recurse_config(const struct submodule *submodule,
>> +				    struct submodule_parallel_fetch *spf)
>> +{
>> +	if (spf->command_line_option != RECURSE_SUBMODULES_DEFAULT)
>> +		return spf->command_line_option;
>> +
>> +	if (submodule) {
>> +		char *key;
>> +		const char *value;
>> +
>> +		int fetch_recurse = submodule->fetch_recurse;
>> +		key = xstrfmt("submodule.%s.fetchRecurseSubmodules", submodule->name);
>> +		if (!repo_config_get_string_const(the_repository, key, &value)) {
>> +			fetch_recurse = parse_fetch_recurse_submodules_arg(key, value);
>> +		}
>> +		free(key);
>> +
>> +		if (fetch_recurse != RECURSE_SUBMODULES_NONE)
>> +			/* local config overrules everything except commandline */
>> +			return fetch_recurse;
>> +	}
>> +
>> +	return spf->default_option;
>> +}
>> +
>>  static int get_next_submodule(struct child_process *cp,
>>  			      struct strbuf *err, void *data, void **task_cb)
>>  {
>> @@ -1214,46 +1239,21 @@ static int get_next_submodule(struct child_process *cp,
>>  			}
>>  		}
>>  
>> -		default_argv = "yes";
>> -		if (spf->command_line_option == RECURSE_SUBMODULES_DEFAULT) {
>> -			int fetch_recurse = RECURSE_SUBMODULES_NONE;
>> -
>> -			if (submodule) {
>> -				char *key;
>> -				const char *value;
>> -
>> -				fetch_recurse = submodule->fetch_recurse;
>> -				key = xstrfmt("submodule.%s.fetchRecurseSubmodules", submodule->name);
>> -				if (!repo_config_get_string_const(the_repository, key, &value)) {
>> -					fetch_recurse = parse_fetch_recurse_submodules_arg(key, value);
>> -				}
>> -				free(key);
>> -			}
>> -
>> -			if (fetch_recurse != RECURSE_SUBMODULES_NONE) {
>> -				if (fetch_recurse == RECURSE_SUBMODULES_OFF)
>> -					continue;
>> -				if (fetch_recurse == RECURSE_SUBMODULES_ON_DEMAND) {
>> -					if (!unsorted_string_list_lookup(&changed_submodule_names,
>> -									 submodule->name))
>> -						continue;
>> -					default_argv = "on-demand";
>> -				}
>> -			} else {
>> -				if (spf->default_option == RECURSE_SUBMODULES_OFF)
>> -					continue;
>> -				if (spf->default_option == RECURSE_SUBMODULES_ON_DEMAND) {
>> -					if (!unsorted_string_list_lookup(&changed_submodule_names,
>> -									  submodule->name))
>> -						continue;
>> -					default_argv = "on-demand";
>> -				}
>> -			}
>> -		} else if (spf->command_line_option == RECURSE_SUBMODULES_ON_DEMAND) {
>> -			if (!unsorted_string_list_lookup(&changed_submodule_names,
>> +		switch (get_fetch_recurse_config(submodule, spf))
>> +		{
>> +		default:
>> +		case RECURSE_SUBMODULES_DEFAULT:
>> +		case RECURSE_SUBMODULES_ON_DEMAND:
>> +			if (!submodule || !unsorted_string_list_lookup(&changed_submodule_names,
>>  							 submodule->name))
>>  				continue;
>>  			default_argv = "on-demand";
>> +			break;
>> +		case RECURSE_SUBMODULES_ON:
>> +			default_argv = "yes";
>> +			break;
>> +		case RECURSE_SUBMODULES_OFF:
>> +			continue;
>>  		}
>>  
>>  		strbuf_addf(&submodule_path, "%s/%s", spf->work_tree, ce->name);
>> -- 
>> 2.14.1.145.gb3622a4
>> 
Previous: Brandon WilliamsNext: Heiko Voigt
Message 8 of 24 in “implement fetching of moved submodules”
  1. 0/3 implement fetching of moved submodulesHeiko Voigt, Oct 16, 2017
  2. 1/3 fetch: add test to make sure we stay backwards compatibleHeiko Voigt, Oct 16, 2017
  3. Stefan BellerOct 17, 2017
  4. 3/3 submodule: simplify decision tree whether to or not to fetchHeiko Voigt, Oct 16, 2017
  5. Stefan BellerOct 17, 2017
  6. Junio C HamanoOct 18, 2017
  7. Brandon WilliamsOct 18, 2017
  8. Junio C HamanoOct 19, 2017
  9. Heiko VoigtOct 19, 2017
  10. Brandon WilliamsOct 19, 2017
  11. 2/3 implement fetching of moved submodulesHeiko Voigt, Oct 16, 2017
  12. Stefan BellerOct 17, 2017
  13. Junio C HamanoOct 18, 2017
  14. Stefan BellerOct 18, 2017
  15. Junio C HamanoOct 19, 2017
  16. 1/2 t5526: check for name/path collision in submodule fetchStefan Beller, Oct 19, 2017
  17. 2/2 fetch, push: keep separate lists of submodules and gitlinksStefan Beller, Oct 19, 2017
  18. Heiko VoigtOct 23, 2017
  19. Stefan BellerOct 23, 2017
  20. Junio C HamanoOct 24, 2017
  21. Heiko VoigtOct 23, 2017
  22. Stefan BellerOct 23, 2017
  23. Stefan BellerOct 19, 2017
  24. Junio C HamanoOct 17, 2017

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