mirror of https://gitee.com/openkylin/linux.git
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/*
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* builtin-config.c
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*
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* Copyright (C) 2015, Taeung Song <treeze.taeung@gmail.com>
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*
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*/
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#include "builtin.h"
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#include "perf.h"
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#include "util/cache.h"
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#include <subcmd/parse-options.h>
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#include "util/util.h"
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#include "util/debug.h"
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static bool use_system_config, use_user_config;
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static const char * const config_usage[] = {
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"perf config [<file-option>] [options]",
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NULL
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};
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enum actions {
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ACTION_LIST = 1
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} actions;
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static struct option config_options[] = {
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OPT_SET_UINT('l', "list", &actions,
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"show current config variables", ACTION_LIST),
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OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
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OPT_BOOLEAN(0, "user", &use_user_config, "use user config file"),
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OPT_END()
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};
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static int show_config(const char *key, const char *value,
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void *cb __maybe_unused)
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{
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if (value)
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printf("%s=%s\n", key, value);
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else
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printf("%s\n", key);
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return 0;
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}
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int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
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{
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int ret = 0;
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char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));
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argc = parse_options(argc, argv, config_options, config_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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if (use_system_config && use_user_config) {
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pr_err("Error: only one config file at a time\n");
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parse_options_usage(config_usage, config_options, "user", 0);
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parse_options_usage(NULL, config_options, "system", 0);
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return -1;
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}
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if (use_system_config)
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config_exclusive_filename = perf_etc_perfconfig();
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else if (use_user_config)
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config_exclusive_filename = user_config;
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switch (actions) {
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case ACTION_LIST:
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if (argc) {
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pr_err("Error: takes no arguments\n");
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parse_options_usage(config_usage, config_options, "l", 1);
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} else {
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ret = perf_config(show_config, NULL);
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if (ret < 0) {
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const char * config_filename = config_exclusive_filename;
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if (!config_exclusive_filename)
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config_filename = user_config;
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pr_err("Nothing configured, "
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"please check your %s \n", config_filename);
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}
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}
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break;
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default:
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usage_with_options(config_usage, config_options);
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}
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return ret;
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}
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