a428619309
Have the "git_configset_get_value_multi()" function and its siblings
return an "int" and populate a "**dest" parameter like every other
git_configset_get_*()" in the API.
As we'll take advantage of in subsequent commits, this fixes a blind
spot in the API where it wasn't possible to tell whether a list was
empty from whether a config key existed. For now we don't make use of
those new return values, but faithfully convert existing API users.
Most of this is straightforward, commentary on cases that stand out:
- To ensure that we'll properly use the return values of this function
in the future we're using the "RESULT_MUST_BE_USED" macro introduced
in [1].
As git_die_config() now has to handle this return value let's have
it BUG() if it can't find the config entry. As tested for in a
preceding commit we can rely on getting the config list in
git_die_config().
- The loops after getting the "list" value in "builtin/gc.c" could
also make use of "unsorted_string_list_has_string()" instead of using
that loop, but let's leave that for now.
- In "versioncmp.c" we now use the return value of the functions,
instead of checking if the lists are still non-NULL.
1. 1e8697b5c4 (submodule--helper: check repo{_submodule,}_init()
return values, 2022-09-01),
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
#include "cache.h"
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#include "config.h"
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#include "builtin.h"
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#include "parse-options.h"
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#include "run-command.h"
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#include "string-list.h"
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static const char * const for_each_repo_usage[] = {
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N_("git for-each-repo --config=<config> [--] <arguments>"),
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NULL
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};
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static int run_command_on_repo(const char *path, int argc, const char ** argv)
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{
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int i;
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struct child_process child = CHILD_PROCESS_INIT;
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char *abspath = interpolate_path(path, 0);
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child.git_cmd = 1;
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strvec_pushl(&child.args, "-C", abspath, NULL);
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for (i = 0; i < argc; i++)
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strvec_push(&child.args, argv[i]);
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free(abspath);
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return run_command(&child);
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}
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int cmd_for_each_repo(int argc, const char **argv, const char *prefix)
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{
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static const char *config_key = NULL;
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int i, result = 0;
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const struct string_list *values;
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const struct option options[] = {
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OPT_STRING(0, "config", &config_key, N_("config"),
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N_("config key storing a list of repository paths")),
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OPT_END()
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};
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argc = parse_options(argc, argv, prefix, options, for_each_repo_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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if (!config_key)
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die(_("missing --config=<config>"));
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/*
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* Do nothing on an empty list, which is equivalent to the case
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* where the config variable does not exist at all.
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*/
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if (repo_config_get_value_multi(the_repository, config_key, &values))
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return 0;
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for (i = 0; !result && i < values->nr; i++)
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result = run_command_on_repo(values->items[i].string, argc, argv);
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return result;
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}
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