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#include "log.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
int colored = 1;
int v = 0;
static const char *verbosity_colors[] = {
"", // L_SILENT
"\x1B[1;31m", // L_ERROR
"\x1B[1;34m", // L_INFO
"\x1B[1;30m", // L_DEBUG
};
void init_log(int verbosity) {
v = verbosity;
/* set FD_CLOEXEC flag to prevent programs called with exec to write into logs */
int i, flag;
int fd[] = { STDOUT_FILENO, STDIN_FILENO, STDERR_FILENO };
for (i = 0; i < 3; ++i) {
flag = fcntl(fd[i], F_GETFD);
if (flag != -1) {
fcntl(fd[i], F_SETFD, flag | FD_CLOEXEC);
}
}
}
void sway_log_colors(int mode) {
colored = (mode == 1) ? 1 : 0;
}
void sway_abort(char *format, ...) {
fprintf(stderr, "ERROR: ");
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
fprintf(stderr, "\n");
exit(1);
}
void sway_log(int verbosity, char* format, ...) {
if (verbosity <= v) {
int c = verbosity;
if (c > sizeof(verbosity_colors) / sizeof(char *)) {
c = sizeof(verbosity_colors) / sizeof(char *) - 1;
}
if (colored) {
fprintf(stderr, verbosity_colors[c]);
}
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
if (colored) {
fprintf(stderr, "\x1B[0m");
}
fprintf(stderr, "\n");
}
}
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