build checkpoint!

3 files changed, 134 insertions, 0 deletions

diff --git a/src/build.c b/src/build.c
new file mode 100644
index 0000000..86a0b29
--- /dev/null
+++ b/src/build.c
@@ -0,0 +1,130 @@
+/*
+
+  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 <stdlib.h>
+#include <string.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")) 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();
+	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_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");
+	bool target_success = false;
+	lua_pushnil(L);
+	while (lua_next(L, -2) != 0) {
+		str key = mstr(lua_tostring(L, -2));
+		if (!lua_try_table(L, "init.lua", key.data)) 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);
+			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) return true;
+		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;
+}
+
+void 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 (lua_build(pkg->name, pkg->target, pkg->is_local ? cwd : pkg->src)) return;
+  log_error("no usable build system was found for %.*s", str_fmt(&pkg->name));
+  exit(EXIT_FAILURE);
+}
diff --git a/src/lua_globs.c b/src/lua_globs.c
index 745df00..815a75e 100644
--- a/src/lua_globs.c
+++ b/src/lua_globs.c
@@ -79,6 +79,9 @@ void init_bldit_state(void) {
 			log_warn("cannot run bldit: %s", lua_tostring(B, -1));
 		return;
 	}
+	lua_pushfstring(B, "%s", inst_dirs.prefix.data);
+	lua_setglobal(B, "prefix");
+	lua_pop(B, 1);
 	bldit_loaded = true;
 }
 
diff --git a/src/lua_install.c b/src/lua_install.c
index 4b12c2f..dc09c3e 100644
--- a/src/lua_install.c
+++ b/src/lua_install.c
@@ -23,6 +23,7 @@
 
 #include "pkgit_lua.h"
 
+#include "build.h"
 #include "files.h"
 #include "globs.h"
 #include "log.h"