2016-03-29 00:43:49

by Taeung Song

Subject: [PATCH v4 2/4] perf config: Let show_config() work with perf_config_set

Current show_config() has a problem when user or
system config files have same config variables i.e.

# cat ~/.perfconfig
[top]
children = false

when $(sysconfdir) is /usr/local/etc
# cat /usr/local/etc/perfconfig
[top]
children = true

Before:
# perf config --user --list
top.children=false

# perf config --system --list
top.children=true

# perf config --list
top.children=true
top.children=false

Because perf_config() can call show_config()
each the config file (user and system).
So fix it.

After:
# perf config --user --list
top.children=false

# perf config --system --list
top.children=true

# perf config --list
top.children=false

Acked-by: Namhyung Kim <[email protected]>
Cc: Jiri Olsa <[email protected]>
Signed-off-by: Taeung Song <[email protected]>
---
tools/perf/builtin-config.c | 35 ++++++++++++++++++++++++++++-------
1 file changed, 28 insertions(+), 7 deletions(-)

diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
index c42448e..c7cf34f 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -12,6 +12,7 @@
#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;

@@ -32,13 +33,24 @@ static struct option config_options[] = {
OPT_END()
};

-static int show_config(const char *key, const char *value,
- void *cb __maybe_unused)
+static int show_config(struct perf_config_set *perf_configs)
{
- if (value)
- printf("%s=%s\n", key, value);
- else
- printf("%s\n", key);
+ struct perf_config_section *section;
+ struct perf_config_item *config_item;
+ struct list_head *sections = &perf_configs->sections;
+
+ if (list_empty(sections))
+ return -1;
+
+ list_for_each_entry(section, sections, list) {
+ list_for_each_entry(config_item, &section->config_items, list) {
+ char *value = config_item->value;
+
+ if (value)
+ printf("%s.%s=%s\n", section->name,
+ config_item->name, value);
+ }
+ }

return 0;
}
@@ -46,6 +58,7 @@ static int show_config(const char *key, const char *value,
int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
{
int ret = 0;
+ struct perf_config_set *perf_configs;
char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));

argc = parse_options(argc, argv, config_options, config_usage,
@@ -63,13 +76,19 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
else if (use_user_config)
config_exclusive_filename = user_config;

+ perf_configs = perf_config_set__new();
+ if (!perf_configs) {
+ 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 = perf_config(show_config, NULL);
+ ret = show_config(perf_configs);
if (ret < 0) {
const char * config_filename = config_exclusive_filename;
if (!config_exclusive_filename)
@@ -83,5 +102,7 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
usage_with_options(config_usage, config_options);
}

+ perf_config_set__delete(perf_configs);
+out_err:
return ret;
}
--
2.5.0

2016-03-29 16:12:43

by Arnaldo Carvalho de Melo

Subject: Re: [PATCH v4 2/4] perf config: Let show_config() work with perf_config_set

Em Tue, Mar 29, 2016 at 09:43:42AM +0900, Taeung Song escreveu:
> Current show_config() has a problem when user or
> system config files have same config variables i.e.
>
> # cat ~/.perfconfig
> [top]
> children = false
>
> when $(sysconfdir) is /usr/local/etc
> # cat /usr/local/etc/perfconfig
> [top]
> children = true
>
> Before:
> # perf config --user --list
> top.children=false
>
> # perf config --system --list
> top.children=true
>
> # perf config --list
> top.children=true
> top.children=false
>
> Because perf_config() can call show_config()
> each the config file (user and system).
> So fix it.
>
> After:
> # perf config --user --list
> top.children=false
>
> # perf config --system --list
> top.children=true
>
> # perf config --list
> top.children=false
>
> Acked-by: Namhyung Kim <[email protected]>

Applied

> Cc: Jiri Olsa <[email protected]>
> Signed-off-by: Taeung Song <[email protected]>
> ---
> tools/perf/builtin-config.c | 35 ++++++++++++++++++++++++++++-------
> 1 file changed, 28 insertions(+), 7 deletions(-)
>
> diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
> index c42448e..c7cf34f 100644
> --- a/tools/perf/builtin-config.c
> +++ b/tools/perf/builtin-config.c
> @@ -12,6 +12,7 @@
> #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;
>
> @@ -32,13 +33,24 @@ static struct option config_options[] = {
> OPT_END()
> };
>
> -static int show_config(const char *key, const char *value,
> - void *cb __maybe_unused)
> +static int show_config(struct perf_config_set *perf_configs)
> {
> - if (value)
> - printf("%s=%s\n", key, value);
> - else
> - printf("%s\n", key);
> + struct perf_config_section *section;
> + struct perf_config_item *config_item;
> + struct list_head *sections = &perf_configs->sections;
> +
> + if (list_empty(sections))
> + return -1;
> +
> + list_for_each_entry(section, sections, list) {
> + list_for_each_entry(config_item, &section->config_items, list) {
> + char *value = config_item->value;
> +
> + if (value)
> + printf("%s.%s=%s\n", section->name,
> + config_item->name, value);
> + }
> + }
>
> return 0;
> }
> @@ -46,6 +58,7 @@ static int show_config(const char *key, const char *value,
> int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
> {
> int ret = 0;
> + struct perf_config_set *perf_configs;
> char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));
>
> argc = parse_options(argc, argv, config_options, config_usage,
> @@ -63,13 +76,19 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
> else if (use_user_config)
> config_exclusive_filename = user_config;
>
> + perf_configs = perf_config_set__new();
> + if (!perf_configs) {
> + 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 = perf_config(show_config, NULL);
> + ret = show_config(perf_configs);
> if (ret < 0) {
> const char * config_filename = config_exclusive_filename;
> if (!config_exclusive_filename)
> @@ -83,5 +102,7 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
> usage_with_options(config_usage, config_options);
> }
>
> + perf_config_set__delete(perf_configs);
> +out_err:
> return ret;
> }
> --
> 2.5.0