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#include "config.h"
#include "log.h"
#include "paths.h"
#include "unistd.h"
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#include "stdlib.h"
#include "string.h"
int pow_open_config(lua_State *L_global, pow_config *cfg, char *path) {
int err;
cfg->L_global = L_global;
luaL_openlibs(L_global);
lua_State *L = lua_newthread(L_global);
cfg->L_cfg = L;
err = luaL_loadfile(L, path);
if (err) {
return 1;
}
err = lua_pcall(L, 0, 1, 0);
if (err) {
pow_log_error("%s\n", lua_tostring(L, -1));
return 1;
}
if (!lua_istable(L, -1)) {
pow_log_error("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_objlen(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);
pow_log_error("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);
pow_log_error(
"malloc for path failed, what the fuck? something really bad "
"happened i guess\n");
return 1;
}
repo->path = path_dup;
} else {
pow_log_error("invalid (or non existent) path for repo");
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) {
pow_log_error("failed realloc! bad things coming\n");
lua_pop(L, 1);
lua_pop(L, 1);
free((void*)repo->path);
free(repo);
return 1;
}
repos[cfg->repos_count++] = repo;
cfg->repos = repos;
lua_pop(L, 1);
}
lua_pop(L, 1);
}
lua_pop(L, 1);
lua_getfield(L, -1, "build");
if (!lua_istable(L, -1)) {
pow_log_info("no build options specified");
} else {
pow_log_info("build opts defined");
}
cfg->build_cfg_ref = luaL_ref(L, LUA_REGISTRYINDEX);
lua_pop(L, 1);
}
if (access("/etc/pow/use.lua", F_OK) != 0) {
pow_log_info("use.lua does not exist");
return 0;
}
lua_State *L_use = lua_newthread(L_global);
err = luaL_loadfile(L_use, "/etc/pow/use.lua");
if (err) {
pow_log_error("failed to load use.lua");
return 0;
}
err = lua_pcall(L_use, 0, 1, 0);
if (err) {
pow_log_error("failed to execute use.lua");
return 0;
}
if (!lua_istable(L_use, -1)) {
pow_log_error("invalid return value of use.lua");
return 0;
}
cfg->use_ref = luaL_ref(L_use, LUA_REGISTRYINDEX);
return 0;
}
int pow_close_config(pow_config *cfg) {
for (size_t i = 0; i < cfg->repos_count; i++) {
free((void*)cfg->repos[i]->path);
free(cfg->repos[i]);
}
free(cfg->repos);
lua_close(cfg->L_cfg);
return 0;
}
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