Much cleaner build script

lib/build.py

@@ -0,0 +1,22 @@
+from provider import Provider
+
+
+class Build:
+    def __init__(self, distro, version, provider: Provider):
+        self.distro: str = distro
+        self.version: str = str(version)
+        self.provider: str = provider
+
+    @property
+    def var_file(self):
+        return f"-var-file=distros/{self.distro}/{self.version}/{self.provider.arch}.pkrvars.hcl"
+
+    @property
+    def only(self):
+        return f"-only={self.provider}"
+
+    def __str__(self) -> str:
+        return f"{self.distro} {self.version}: {self.provider}"
+
+    def __repr__(self) -> str:
+        return str(self)