labwc/src/config/config-dir.c
2020-07-18 11:28:39 +01:00

70 lines
1.4 KiB
C

/*
* Find the labwc configuration directory
*
* Copyright Johan Malm 2020
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <stdbool.h>
#include <glib.h>
#include "config/config-dir.h"
struct dir {
const char *prefix;
const char *path;
};
/* clang-format off */
static struct dir config_dirs[] = {
{ "XDG_CONFIG_HOME", "labwc" },
{ "HOME", ".config/labwc" },
{ "XDG_CONFIG_DIRS", "labwc" },
{ NULL, "/etc/xdg/labwc" },
{ "XDG_CONFIG_HOME", "openbox" },
{ "HOME", ".config/openbox" },
{ "XDG_CONFIG_DIRS", "openbox" },
{ NULL, "/etc/xdg/openbox" },
{ NULL, NULL }
};
/* clang-format on */
static bool isdir(const char *path)
{
struct stat st;
return (!stat(path, &st) && S_ISDIR(st.st_mode));
}
char *config_dir(void)
{
static char buf[4096] = { 0 };
if (buf[0] != '\0')
return buf;
for (int i = 0; config_dirs[i].path; i++) {
struct dir d = config_dirs[i];
if (!d.prefix) {
/* handle /etc/xdg... */
snprintf(buf, sizeof(buf), "%s", d.path);
if (isdir(buf))
return buf;
} else {
/* handle $HOME/.config/... and $XDG_* */
char *prefix = getenv(d.prefix);
if (!prefix)
continue;
gchar **prefixes = g_strsplit(prefix, ":", -1);
for (gchar **p = prefixes; *p; p++) {
snprintf(buf, sizeof(buf), "%s/%s", *p, d.path);
if (isdir(buf))
return buf;
}
}
}
/* no config directory was found */
buf[0] = '.';
buf[1] = '\0';
return buf;
}