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linux-next/tools/perf/builtin-config.c
Taeung Song 4a35b3497c perf config: Reimplement show_config() using config_set__for_each
Recently config_set__for_each got added.  In order to let show_config()
be short and clear, rewrite this function using it.

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1466691272-24117-4-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-23 17:23:00 -03:00

110 lines
2.5 KiB
C

/*
* builtin-config.c
*
* Copyright (C) 2015, Taeung Song <treeze.taeung@gmail.com>
*
*/
#include "builtin.h"
#include "perf.h"
#include "util/cache.h"
#include <subcmd/parse-options.h>
#include "util/util.h"
#include "util/debug.h"
#include "util/config.h"
static bool use_system_config, use_user_config;
static const char * const config_usage[] = {
"perf config [<file-option>] [options]",
NULL
};
enum actions {
ACTION_LIST = 1
} actions;
static struct option config_options[] = {
OPT_SET_UINT('l', "list", &actions,
"show current config variables", ACTION_LIST),
OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
OPT_BOOLEAN(0, "user", &use_user_config, "use user config file"),
OPT_END()
};
static int show_config(struct perf_config_set *set)
{
struct perf_config_section *section;
struct perf_config_item *item;
if (set == NULL)
return -1;
perf_config_set__for_each_entry(set, section, item) {
char *value = item->value;
if (value)
printf("%s.%s=%s\n", section->name,
item->name, value);
}
return 0;
}
int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
{
int ret = 0;
struct perf_config_set *set;
char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));
argc = parse_options(argc, argv, config_options, config_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (use_system_config && use_user_config) {
pr_err("Error: only one config file at a time\n");
parse_options_usage(config_usage, config_options, "user", 0);
parse_options_usage(NULL, config_options, "system", 0);
return -1;
}
if (use_system_config)
config_exclusive_filename = perf_etc_perfconfig();
else if (use_user_config)
config_exclusive_filename = user_config;
/*
* At only 'config' sub-command, individually use the config set
* because of reinitializing with options config file location.
*/
set = perf_config_set__new();
if (!set) {
ret = -1;
goto out_err;
}
switch (actions) {
case ACTION_LIST:
if (argc) {
pr_err("Error: takes no arguments\n");
parse_options_usage(config_usage, config_options, "l", 1);
} else {
ret = show_config(set);
if (ret < 0) {
const char * config_filename = config_exclusive_filename;
if (!config_exclusive_filename)
config_filename = user_config;
pr_err("Nothing configured, "
"please check your %s \n", config_filename);
}
}
break;
default:
usage_with_options(config_usage, config_options);
}
perf_config_set__delete(set);
out_err:
return ret;
}