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Add tztime module to support multiple different timezones.

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This commit is contained in:
Emil Mikulic 2013-01-14 00:18:38 +11:00 committed by Michael Stapelberg
parent 895cbad7a2
commit 2ebe1f3726
6 changed files with 89 additions and 25 deletions
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26
i3status.c
View File

@ -239,7 +239,13 @@ int main(int argc, char *argv[]) {
};
cfg_opt_t time_opts[] = {
CFG_STR("format", "%d.%m.%Y %H:%M:%S", CFGF_NONE),
CFG_STR("format", "%Y-%m-%d %H:%M:%S", CFGF_NONE),
CFG_END()
};
cfg_opt_t tztime_opts[] = {
CFG_STR("format", "%Y-%m-%d %H:%M:%S %Z", CFGF_NONE),
CFG_STR("timezone", "", CFGF_NONE),
CFG_END()
};
@ -292,6 +298,7 @@ int main(int argc, char *argv[]) {
CFG_SEC("volume", volume_opts, CFGF_TITLE | CFGF_MULTI),
CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
CFG_SEC("time", time_opts, CFGF_NONE),
CFG_SEC("tztime", tztime_opts, CFGF_TITLE | CFGF_MULTI),
CFG_SEC("ddate", ddate_opts, CFGF_NONE),
CFG_SEC("load", load_opts, CFGF_NONE),
CFG_SEC("cpu_usage", usage_opts, CFGF_NONE),
@ -403,16 +410,9 @@ int main(int argc, char *argv[]) {
* (!), not individual plugins, seem very unlikely. */
char buffer[4096];
struct tm tm;
while (1) {
struct timeval tv;
gettimeofday(&tv, NULL);
time_t current_time = tv.tv_sec;
struct tm *current_tm = NULL;
if (current_time != (time_t) -1) {
localtime_r(&current_time, &tm);
current_tm = &tm;
}
if (output_format == O_I3BAR)
yajl_gen_array_open(json_gen);
for (j = 0; j < cfg_size(cfg, "order"); j++) {
@ -465,13 +465,19 @@ int main(int argc, char *argv[]) {
CASE_SEC("time") {
SEC_OPEN_MAP("time");
print_time(json_gen, buffer, cfg_getstr(sec, "format"), current_tm);
print_time(json_gen, buffer, cfg_getstr(sec, "format"), NULL, tv.tv_sec);
SEC_CLOSE_MAP;
}
CASE_SEC_TITLE("tztime") {
SEC_OPEN_MAP("tztime");
print_time(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "timezone"), tv.tv_sec);
SEC_CLOSE_MAP;
}
CASE_SEC("ddate") {
SEC_OPEN_MAP("ddate");
print_ddate(json_gen, buffer, cfg_getstr(sec, "format"), current_tm);
print_ddate(json_gen, buffer, cfg_getstr(sec, "format"), tv.tv_sec);
SEC_CLOSE_MAP;
}

4
i3status.conf
View File

@ -19,7 +19,7 @@ order += "wireless wlan0"
order += "ethernet eth0"
order += "battery 0"
order += "load"
order += "time"
order += "tztime local"
wireless wlan0 {
format_up = "W: (%quality at %essid) %ip"
@ -44,7 +44,7 @@ run_watch VPN {
pidfile = "/var/run/vpnc/pid"
}
time {
tztime local {
format = "%Y-%m-%d %H:%M:%S"
}

7
include/i3status.h
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@ -137,11 +137,14 @@ char *endcolor() __attribute__ ((pure));
/* src/auto_detect_format.c */
char *auto_detect_format();
/* src/print_time.c */
void set_timezone(const char *timezone);
void print_ipv6_info(yajl_gen json_gen, char *buffer, const char *format_up, const char *format_down);
void print_disk_info(yajl_gen json_gen, char *buffer, const char *path, const char *format);
void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char *path, const char *format, int low_threshold, char *threshold_type, bool last_full_capacity);
void print_time(yajl_gen json_gen, char *buffer, const char *format, struct tm *current_tm);
void print_ddate(yajl_gen json_gen, char *buffer, const char *format, struct tm *current_tm);
void print_time(yajl_gen json_gen, char *buffer, const char *format, const char *timezone, time_t t);
void print_ddate(yajl_gen json_gen, char *buffer, const char *format, time_t t);
const char *get_ip_addr();
void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down);
void print_run_watch(yajl_gen json_gen, char *buffer, const char *title, const char *pidfile, const char *format);

31
man/i3status.man
View File

@ -56,7 +56,8 @@ order += "ethernet eth0"
order += "battery 0"
order += "cpu_temperature 0"
order += "load"
order += "time"
order += "tztime local"
order += "tztime berlin"
wireless wlan0 {
format_up = "W: (%quality at %essid, %bitrate) %ip"
@ -83,10 +84,15 @@ run_watch VPN {
pidfile = "/var/run/vpnc/pid"
}
time {
tztime local {
format = "%Y-%m-%d %H:%M:%S"
}
tztime berlin {
format = "%Y-%m-%d %H:%M:%S %Z"
timezone = "Europe/Berlin"
}
load {
format = "%5min"
}
@ -258,12 +264,31 @@ Gets the system load (number of processes waiting for CPU time in the last
=== Time
Formats the current system time. See +strftime(3)+ for the format.
Outputs the current time in the local timezone.
To use a different timezone, you can set the TZ environment variable,
or use the +tztime+ module.
See +strftime(3)+ for details on the format string.
*Example order*: +time+
*Example format*: +%Y-%m-%d %H:%M:%S+
=== TzTime
Outputs the current time in the given timezone.
If no timezone is given, local time will be used.
See +strftime(3)+ for details on the format string.
The system's timezone database is usually installed in +/usr/share/zoneinfo+.
Files below that path make for valid timezone strings, e.g. for
+/usr/share/zoneinfo/Europe/Berlin+ you can set timezone to +Europe/Berlin+
in the +tztime+ module.
*Example order*: +tztime berlin+
*Example format*: +%Y-%m-%d %H:%M:%S %Z+
*Example timezone*: +Europe/Berlin+
=== DDate
Outputs the current discordian date in user-specified format. See +ddate(1)+ for

7
src/print_ddate.c
View File

@ -204,11 +204,14 @@ struct disc_time *get_ddate(struct tm *current_tm) {
return &dt;
}
void print_ddate(yajl_gen json_gen, char *buffer, const char *format, struct tm *current_tm) {
void print_ddate(yajl_gen json_gen, char *buffer, const char *format, time_t t) {
char *outwalk = buffer;
static char *form = NULL;
struct tm current_tm;
struct disc_time *dt;
if ((dt = get_ddate(current_tm)) == NULL)
set_timezone(NULL); /* Use local time. */
localtime_r(&t, &current_tm);
if ((dt = get_ddate(&current_tm)) == NULL)
return;
if (form == NULL)
if ((form = malloc(strlen(format) + 1)) == NULL)

37
src/print_time.c
View File

@ -7,12 +7,39 @@
#include "i3status.h"
void print_time(yajl_gen json_gen, char *buffer, const char *format, struct tm *current_tm) {
static int local_timezone_init = 0;
static const char *local_timezone = NULL;
static const char *current_timezone = NULL;
void set_timezone(const char *timezone) {
if (!local_timezone_init) {
/* First call, initialize. */
local_timezone = getenv("TZ");
local_timezone_init = 1;
}
if (timezone == NULL || timezone[0] == '\0') {
/* User wants localtime. */
timezone = local_timezone;
}
if (timezone != current_timezone) {
if (timezone) {
setenv("TZ", timezone, 1);
} else {
unsetenv("TZ");
}
tzset();
current_timezone = timezone;
}
}
void print_time(yajl_gen json_gen, char *buffer, const char *format, const char *timezone, time_t t) {
char *outwalk = buffer;
if (current_tm == NULL)
return;
/* Get date & time */
outwalk += strftime(outwalk, 4095, format, current_tm);
struct tm tm;
/* Convert time and format output. */
set_timezone(timezone);
localtime_r(&t, &tm);
outwalk += strftime(outwalk, 4095, format, &tm);
*outwalk = '\0';
OUTPUT_FULL_TEXT(buffer);
}