1 /* 2 * builtin-config.c 3 * 4 * Copyright (C) 2015, Taeung Song <treeze.taeung@gmail.com> 5 * 6 */ 7 #include "builtin.h" 8 9 #include "perf.h" 10 11 #include "util/cache.h" 12 #include <subcmd/parse-options.h> 13 #include "util/util.h" 14 #include "util/debug.h" 15 #include "util/config.h" 16 17 static bool use_system_config, use_user_config; 18 19 static const char * const config_usage[] = { 20 "perf config [<file-option>] [options]", 21 NULL 22 }; 23 24 enum actions { 25 ACTION_LIST = 1 26 } actions; 27 28 static struct option config_options[] = { 29 OPT_SET_UINT('l', "list", &actions, 30 "show current config variables", ACTION_LIST), 31 OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"), 32 OPT_BOOLEAN(0, "user", &use_user_config, "use user config file"), 33 OPT_END() 34 }; 35 36 static int show_config(struct perf_config_set *set) 37 { 38 struct perf_config_section *section; 39 struct perf_config_item *item; 40 41 if (set == NULL) 42 return -1; 43 44 perf_config_set__for_each_entry(set, section, item) { 45 char *value = item->value; 46 47 if (value) 48 printf("%s.%s=%s\n", section->name, 49 item->name, value); 50 } 51 52 return 0; 53 } 54 55 int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused) 56 { 57 int ret = 0; 58 struct perf_config_set *set; 59 char *user_config = mkpath("%s/.perfconfig", getenv("HOME")); 60 61 argc = parse_options(argc, argv, config_options, config_usage, 62 PARSE_OPT_STOP_AT_NON_OPTION); 63 64 if (use_system_config && use_user_config) { 65 pr_err("Error: only one config file at a time\n"); 66 parse_options_usage(config_usage, config_options, "user", 0); 67 parse_options_usage(NULL, config_options, "system", 0); 68 return -1; 69 } 70 71 if (use_system_config) 72 config_exclusive_filename = perf_etc_perfconfig(); 73 else if (use_user_config) 74 config_exclusive_filename = user_config; 75 76 /* 77 * At only 'config' sub-command, individually use the config set 78 * because of reinitializing with options config file location. 79 */ 80 set = perf_config_set__new(); 81 if (!set) { 82 ret = -1; 83 goto out_err; 84 } 85 86 switch (actions) { 87 case ACTION_LIST: 88 if (argc) { 89 pr_err("Error: takes no arguments\n"); 90 parse_options_usage(config_usage, config_options, "l", 1); 91 } else { 92 ret = show_config(set); 93 if (ret < 0) { 94 const char * config_filename = config_exclusive_filename; 95 if (!config_exclusive_filename) 96 config_filename = user_config; 97 pr_err("Nothing configured, " 98 "please check your %s \n", config_filename); 99 } 100 } 101 break; 102 default: 103 usage_with_options(config_usage, config_options); 104 } 105 106 perf_config_set__delete(set); 107 out_err: 108 return ret; 109 } 110