System Gen235 @ 2026-06-19-21:07:09 by jonas@comfy-station

2026-06-19 21:07:10 +02:00
parent 78441fb2d5
commit 9ea047ce9b
12 changed files with 211 additions and 0 deletions
@@ -0,0 +1,76 @@
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Self
+import argparse
+import sys
+import json
+
+
+@dataclass
+class Config:
+    source_lock: Path = Path.home() / ".hive/flake.lock"
+    source_nixpkgs: str = "nixpkgs-unstable"
+    target_lock: Path = Path.cwd() / "flake.lock"
+    dry: bool = False
+
+    @classmethod
+    def load(cls, paths: list[Path]) -> Self:
+        c = cls()
+
+        args = cls.argparse()
+
+        c.dry = args.dry
+
+        # Target lock can only be set via args
+        if args.target_lock:
+            c.target_lock = Path(args.target_lock)
+
+        # We do not need to read config files.
+        if args.source_lock:
+            c.source_lock = Path(args.source_lock)
+            return c
+
+        # Check if source_lock is set somewhere
+        for p in paths:
+            if not p.exists():
+                continue
+
+            with p.open(mode="r") as f:
+                cfg = json.load(f)
+                c.source_lock = Path(cfg["source_lock"])
+                c.source_nixpkgs = cfg["source_nixpkgs"]
+                break
+
+        return c
+
+    @staticmethod
+    def argparse() -> argparse.Namespace:
+        args = argparse.ArgumentParser()
+        args.add_argument(
+            "--source_lock",
+            type=Path,
+            default=None,
+            required=False,
+            help="The flake.lock file to read nixpkgs from.",
+        )
+        args.add_argument(
+            "--source_nixpkgs",
+            type=Path,
+            default=None,
+            required=False,
+            help="The nixpkgs in flake.lock to use.",
+        )
+        args.add_argument(
+            "--target_lock",
+            type=Path,
+            default=None,
+            required=False,
+            help="The flake.lock file to write nixpkgs to. Use CWD/flake.lock if unset",
+        )
+        args.add_argument(
+            "--dry",
+            action="store_true",
+            help="Only show what would be done.",
+        )
+
+        return args.parse_args(sys.argv[1:])