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#include "config.h"
#include "lauxlib.h"
#include "lualib.h"
#include "stdlib.h"
#include "string.h"
int pow_open_config(pow_config *cfg, char *path) {
int err;
cfg->L = luaL_newstate();
if (!cfg->L) {
return 1;
}
lua_State *L = cfg->L; // just easier to access
luaL_openlibs(L);
err = luaL_loadfile(L, path);
if (err) {
return 1;
}
err = lua_pcall(L, 0, 1, 0);
if (err) {
printf("%s\n", lua_tostring(L, -1));
return 1;
}
if (!lua_istable(L, -1)) {
printf("bad config. you must return a table.\n");
return 1;
}
lua_getfield(L, -1, "repos"); // this will push the entire config table to -2
// and push repos to -1
if (lua_istable(L, -1)) {
size_t repo_count = lua_rawlen(L, -1);
for (size_t i = 1; i <= repo_count; i++) {
lua_rawgeti(L, -1, i);
if (lua_istable(L, -1)) {
pow_repo *repo = malloc(sizeof(pow_repo));
if (!repo) {
lua_pop(L, 1);
printf("malloc for repo failed, what the fuck? something really bad "
"happened i guess\n");
return 1;
}
lua_getfield(L, -1, "path");
if (lua_isstring(L, -1)) {
const char *path = lua_tostring(L, -1);
const char *path_dup = strdup(path);
if (!path_dup) {
lua_pop(L, 1);
lua_pop(L, 1);
free(repo);
printf(
"malloc for path failed, what the fuck? something really bad "
"happened i guess\n");
return 1;
}
repo->path = path_dup;
} else {
printf("invalid (or non existent) path for repo\n");
lua_pop(L, 1);
lua_pop(L, 1);
free(repo);
continue;
}
pow_repo **repos =
realloc(cfg->repos, (cfg->repos_count + 1) * sizeof(*repos));
if (!repos) {
printf("failed realloc! bad things coming\n");
lua_pop(L, 1);
lua_pop(L, 1);
free(repo->path);
free(repo);
return 1;
}
repos[cfg->repos_count++] = repo;
cfg->repos = repos;
lua_pop(L, 1);
}
lua_pop(L, 1);
}
}
return 0;
}
int pow_close_config(pow_config *cfg) {
for (size_t i = 0; i < cfg->repos_count; i++) {
free(cfg->repos[i]->path);
free(cfg->repos[i]);
}
free(cfg->repos);
lua_close(cfg->L);
return 0;
}
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