6c62f01552
'git for-each-repo --config=X' should return success without calling any subcommands when the config key 'X' has no value. The current implementation instead segfaults. A user could run into this issue if they used 'git maintenance start' to initialize their cron schedule using 'git for-each-repo --config=maintenance.repo ...' but then using 'git maintenance unregister' to remove the config option. (Note: 'git maintenance stop' would remove the config _and_ remove the cron schedule.) Add a simple test to ensure this works. Use 'git help --no-such-option' as the potential subcommand to ensure that we will hit a failure if the subcommand is ever run. Reported-by: Andreas Bühmann <dev@uuml.de> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
66 lines
1.5 KiB
C
66 lines
1.5 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> <command-args>"),
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NULL
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};
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static int run_command_on_repo(const char *path,
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void *cbdata)
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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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struct strvec *args = (struct strvec *)cbdata;
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child.git_cmd = 1;
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strvec_pushl(&child.args, "-C", path, NULL);
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for (i = 0; i < args->nr; i++)
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strvec_push(&child.args, args->v[i]);
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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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struct strvec args = STRVEC_INIT;
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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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for (i = 0; i < argc; i++)
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strvec_push(&args, argv[i]);
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values = repo_config_get_value_multi(the_repository,
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config_key);
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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 (!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, &args);
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return result;
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}
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