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// vim:ts=4:sw=4:expandtab
#include <config.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <locale.h>
#include <yajl/yajl_gen.h>
#include <yajl/yajl_version.h>
#include "i3status.h"
static bool local_timezone_init = false;
static const char *local_timezone = NULL;
static const char *current_timezone = NULL;
void set_timezone(const char *tz) {
if (!local_timezone_init) {
/* First call, initialize. */
local_timezone = getenv("TZ");
local_timezone_init = true;
}
if (tz == NULL || tz[0] == '\0') {
/* User wants localtime. */
tz = local_timezone;
}
if (tz != current_timezone) {
if (tz) {
setenv("TZ", tz, 1);
} else {
unsetenv("TZ");
}
current_timezone = tz;
}
tzset();
}
void print_time(yajl_gen json_gen, char *buffer, const char *title, const char *format, const char *tz, const char *locale, const char *format_time, bool hide_if_equals_localtime, time_t t) {
const char *walk;
char *outwalk = buffer;
struct tm local_tm, tm;
char timebuf[1024];
if (title != NULL)
INSTANCE(title);
set_timezone(NULL);
localtime_r(&t, &local_tm);
set_timezone(tz);
localtime_r(&t, &tm);
// When hide_if_equals_localtime is true, compare local and target time to display only if different
time_t local_t = mktime(&local_tm);
double diff = difftime(local_t, t);
if (hide_if_equals_localtime && diff == 0.0) {
goto out;
}
if (locale != NULL) {
setlocale(LC_ALL, locale);
}
if (format_time == NULL) {
strftime(timebuf, sizeof(timebuf), format, &tm);
maybe_escape_markup(timebuf, &outwalk);
} else {
for (walk = format; *walk != '\0'; walk++) {
if (*walk != '%') {
*(outwalk++) = *walk;
} else if (BEGINS_WITH(walk + 1, "time")) {
strftime(timebuf, sizeof(timebuf), format_time, &tm);
maybe_escape_markup(timebuf, &outwalk);
walk += strlen("time");
} else {
*(outwalk++) = '%';
}
}
}
if (locale != NULL) {
setlocale(LC_ALL, "");
}
out:
*outwalk = '\0';
OUTPUT_FULL_TEXT(buffer);
}
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