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#include "l2su.h"
#include "macros.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char *l2_launcher__strdup(const char *);
char *l2_launcher__strapp(char *, const char *);
char *l2_launcher__find_config_path(void)
{
/* check for $L2SU_CONFIG */
char *config = getenv(PROJECT_NAME_UPPER "_CONFIG");
if (config) {
return l2_launcher__strdup(config);
}
/* check for $XDG_CONFIG_HOME */
config = getenv("XDG_CONFIG_HOME");
if (config) {
/* want to append '"/" PROJECT_NAME' to our string */
char *ret = l2_launcher__strdup(config);
if (!ret) return NULL;
return l2_launcher__strapp(ret, "/" PROJECT_NAME);
}
/* check for $HOME/.config */
config = getenv("HOME");
if (config) {
char *ret = l2_launcher__strdup(config);
if (!ret) return NULL;
return l2_launcher__strapp(ret, "/.config/" PROJECT_NAME);
}
/* fail (do NOT attempt to find home directory from passwd */
return NULL;
}
char *l2_launcher__find_data_path(void)
{
/* check for $L2SU_DATA */
char *config = getenv(PROJECT_NAME_UPPER "_DATA");
if (config) {
return l2_launcher__strdup(config);
}
/* check for $XDG_DATA_HOME */
config = getenv("XDG_DATA_HOME");
if (config) {
char *ret = l2_launcher__strdup(config);
if (!ret) return NULL;
return l2_launcher__strapp(ret, "/" PROJECT_NAME);
}
/* check for $HOME/.local/share */
config = getenv("HOME");
if (config) {
char *ret = l2_launcher__strdup(config);
if (!ret) return NULL;
return l2_launcher__strapp(ret, "/.local/share/" PROJECT_NAME);
}
return NULL;
}
int l2_launcher_init(void)
{
/* find paths (set up l2_state.paths) */
/* create folders if they don't exist */
printf("project is " PROJECT_NAME "...\n");
/* look for config path */
if (!(l2_state.paths.config = l2_launcher__find_config_path())) {
fputs("fatal: Could not decide on a configuration directory! Please define " PROJECT_NAME_UPPER "_CONFIG to a sensible value.\n", stderr);
return 1;
}
if (!(l2_state.paths.data = l2_launcher__find_data_path())) {
fputs("fatal: Could not decide on a data directory! Please define " PROJECT_NAME_UPPER "_DATA to a sensible value.\n", stderr);
return 1;
}
printf("config path: %s\n", l2_state.paths.config);
printf("data path: %s\n", l2_state.paths.data);
return 0;
}
int main(void)
{
int status = l2_launcher_init();
if (status != 0) return status;
return 0;
}
/* handcoded string functions
*
* NOTE: I am aware that this is inefficient but since these are used only a handful of times
* during initialization, I don't think performance is really a huge deal here.
*
* remember that this is a Minecraft launcher, so the PC has to meet the minimum specs of that,
* which are well above the minimum specs of this launcher */
char *l2_launcher__strdup(const char *in)
{
if (!in) return NULL;
size_t inlen = strlen(in);
char *ret = calloc(1, inlen + 1);
if (ret) memcpy(ret, in, inlen);
return ret;
}
char *l2_launcher__strapp(char *buf, const char *src)
{
size_t buflen = strlen(buf);
size_t srclen = strlen(src);
char *ret = realloc(buf, buflen + srclen + 1);
if (!ret) return NULL;
memcpy(ret + buflen, src, srclen);
ret[buflen + srclen] = '\0';
return ret;
}
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