Messages in this thread Patch in this message | | | From | Taeung Song <> | Subject | [PATCH v9 2/9] perf config: Add '--system' and '--user' options to select which config file is used | Date | Tue, 3 Nov 2015 10:50:13 +0900 |
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The file-options '--system' means $(sysconfdir)/perfconfig and '--user' means $HOME/.perfconfig. If file-option isn't used, both system and user config file is read. The syntax examples are like below.
perf config [<file-option>] [options]
a specific config file. # perf config --user | --system or both user and system config file. # perf config
Signed-off-by: Taeung Song <treeze.taeung@gmail.com> --- tools/perf/Documentation/perf-config.txt | 14 +++++++++++++- tools/perf/builtin-config.c | 18 +++++++++++++++++- tools/perf/util/cache.h | 3 +++ tools/perf/util/config.c | 4 ++-- 4 files changed, 35 insertions(+), 4 deletions(-)
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index a590319..2188722 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -8,7 +8,7 @@ perf-config - Get and set variables in a configuration file. SYNOPSIS -------- [verse] -'perf config' -l | --list +'perf config' [<file-option>] -l | --list DESCRIPTION ----------- @@ -21,6 +21,14 @@ OPTIONS --list:: Show current config variables, name and value, for all sections. +--user:: + For writing and reading options: write to user + '$HOME/.perfconfig' file or read it. + +--system:: + For writing and reading options: write to system-wide + '$(sysconfdir)/perfconfig' or read it. + CONFIGURATION FILE ------------------ @@ -33,6 +41,10 @@ store a system-wide default configuration. The variables are divided into sections. In each section, the variables that are composed of a name and value. +When reading or writing, the values are read from the system and user +configuration files by default, and options '--system' and '--user' +can be used to tell the command to read from or write to only that location. + Syntax ~~~~~~ diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c index 2d16150..68e105a 100644 --- a/tools/perf/builtin-config.c +++ b/tools/perf/builtin-config.c @@ -13,8 +13,10 @@ #include "util/util.h" #include "util/debug.h" +static bool use_system_config, use_user_config; + static const char * const config_usage[] = { - "perf config [options]", + "perf config [<file-option>] [options]", NULL }; @@ -25,6 +27,8 @@ enum 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() }; @@ -46,6 +50,18 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused) 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 = mkpath("%s/.perfconfig", getenv("HOME")); + switch (actions) { case ACTION_LIST: default: diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h index c861373..d1eb75f 100644 --- a/tools/perf/util/cache.h +++ b/tools/perf/util/cache.h @@ -19,6 +19,8 @@ #define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR" #define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR" +extern const char *config_exclusive_filename; + typedef int (*config_fn_t)(const char *, const char *, void *); extern int perf_default_config(const char *, const char *, void *); extern int perf_config(config_fn_t fn, void *); @@ -27,6 +29,7 @@ extern u64 perf_config_u64(const char *, const char *); extern int perf_config_bool(const char *, const char *); extern int config_error_nonbool(const char *); extern const char *perf_config_dirname(const char *, const char *); +extern const char *perf_etc_perfconfig(void); /* pager.c */ extern void setup_pager(void); diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index 2e452ac..55ef373 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -26,7 +26,7 @@ static const char *config_file_name; static int config_linenr; static int config_file_eof; -static const char *config_exclusive_filename; +const char *config_exclusive_filename; static int get_next_char(void) { @@ -434,7 +434,7 @@ static int perf_config_from_file(config_fn_t fn, const char *filename, void *dat return ret; } -static const char *perf_etc_perfconfig(void) +const char *perf_etc_perfconfig(void) { static const char *system_wide; if (!system_wide) -- 1.9.1
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