zig toolchain stuff

src/SPC/store/pkg/CustomPackage.php

@@ -13,4 +13,6 @@ abstract class CustomPackage
     abstract public function extract(string $name): void;
 
     abstract public static function getEnvironment(): array;
+
+    abstract public static function isInstalled(): bool;
 }

src/SPC/store/pkg/Zig.php

@@ -11,6 +11,27 @@ use SPC\store\LockFile;
 
 class Zig extends CustomPackage
 {
+    private static function getPath(): string
+    {
+        $arch = arch2gnu(php_uname('m'));
+        $os = match (PHP_OS_FAMILY) {
+            'Linux' => 'linux',
+            'Windows' => 'win',
+            'Darwin' => 'macos',
+            'BSD' => 'freebsd',
+            default => 'linux',
+        };
+
+        $packageName = "zig-{$arch}-{$os}";
+        return PKG_ROOT_PATH . "/{$packageName}";
+    }
+
+    public static function isInstalled(): bool
+    {
+        $path = self::getPath();
+        return file_exists("$path/zig") && file_exists("$path/zig-cc") && file_exists("$path/zig-c++");
+    }
+
     public function getSupportName(): array
     {
         return [