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/*
pkgit - package it!
Copyright (C) 2026 dacctal
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <unistd.h>
#include "build.h"
#include "globs.h"
#include "log.h"
#include "pkg.h"
#include "pkgit_lua.h"
bool target_build(lua_State *L, char* lua_file, str *target) {
if (!lua_try_table(L, lua_file, target->data)) return false;
if (lua_try_table(L, lua_file, "dependencies")) {
lua_pushnil(L);
install_dependencies(L);
}
lua_pop(L, 1);
if (!lua_try_function(L, lua_file, "build"))
lua_pop(L, 2);
return true;
}
bool repo_build(package_t *pkg) {
lua_getglobal(L, "repositories");
if (!lua_try_table(L, "init.lua", pkg->name.data)) {
lua_pop(L, 2);
return false;
}
if (lua_try_table(L, "init.lua", "dependencies")) {
lua_pushnil(L);
install_dependencies(L);
}
lua_pop(L, 1);
if (!lua_try_table(L, "init.lua", "targets")) {
lua_pop(L, 3);
return false;
}
bool target_success = target_build(L, "init.lua", &pkg->target);
lua_pop(L, 3);
return target_success;
}
bool bldit(package_t *pkg) {
init_bldit_state();
if (!bldit_loaded) return false;
lua_getglobal(B, "dependencies");
if (!lua_istable(B, -1)) {
bldit_isnt_type("dependencies", "table");
} else {
lua_pushnil(B);
install_dependencies(B);
}
lua_pop(B, 1);
lua_getglobal(B, "targets");
if (!lua_istable(B, -1)) {
bldit_isnt_type("targets", "table");
lua_pop(B, 3);
lua_close(B);
return false;
}
bool target_success = target_build(B, "bldit.lua", &pkg->target);
lua_pop(B, 2);
lua_close(B);
return target_success;
}
bool config_build(package_t *pkg) {
lua_getglobal(L, "build_systems");
if (!lua_istable(L, -1)) {
lua_isnt_type("build_systems", "table");
lua_pop(L, 1);
return false;
}
bool target_success = false;
lua_pushnil(L);
while (lua_next(L, -2) != 0) {
str key = mstr(lua_tostring(L, -2));
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
str_free(&key);
continue;
}
str file_path = str_format("%.*s/%s", str_fmt(&pkg->src), key.data);
if (access(file_path.data, F_OK) != 0) {
lua_pop(L, 1);
str_free(&file_path);
str_free(&key);
continue;
}
str_free(&file_path);
str_free(&key);
if (!lua_try_table(L, "init.lua", "targets")) continue;
target_success = target_build(L, "init.lua", &pkg->target);
if (target_success) break;
lua_pop(L, 1);
}
lua_pop(L, 1);
return target_success;
}
bool build_loop(package_t *pkg) {
log_info("attempting init.lua: 'repositories.%.*s.build'", str_fmt(&pkg->name));
if (repo_build(pkg)) { return true; }
log_warn("failed init.lua: 'repositories.%.*s.build'", str_fmt(&pkg->name));
log_info("attempting bldit.lua");
if (bldit(pkg)) { return true; }
log_warn("failed bldit.lua");
log_info("attempting init.lua: 'build_systems'");
if (config_build(pkg)) { return true; }
log_warn("failed init.lua: 'build_systems'");
return false;
}
bool build(package_t *pkg) {
char cwd[MAX_PATH_LEN];
getcwd(cwd, MAX_PATH_LEN);
if (str_equal_cstr(&pkg->src, cwd) && !pkg->is_local) chdir(pkg->src.data);
if (build_loop(pkg)) return true;
log_error("no usable build system was found for %.*s", str_fmt(&pkg->name));
return false;
}
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