initial commit

xray_lists/dnsmasq_gen.py

@@ -0,0 +1,32 @@
+from __future__ import annotations
+
+import logging
+from pathlib import Path
+
+log = logging.getLogger("xray-lists.dnsmasq")
+
+
+def render_nftset_file(domain_to_targets: dict[str, list[str]]) -> str:
+    lines = []
+    for domain in sorted(domain_to_targets):
+        targets = ",".join(domain_to_targets[domain])
+        lines.append(f"nftset=/{domain}/{targets}")
+    return "\n".join(lines) + ("\n" if lines else "")
+
+
+def write_if_changed(path: Path, content: str, dry_run: bool = False) -> bool:
+    old = path.read_text() if path.is_file() else None
+    if old == content:
+        log.debug("%s: unchanged", path)
+        return False
+
+    if dry_run:
+        log.info("[dry-run] would write %s", path)
+        return True
+
+    path.parent.mkdir(parents=True, exist_ok=True)
+    tmp = path.with_suffix(path.suffix + ".tmp")
+    tmp.write_text(content)
+    tmp.replace(path)
+    log.info("wrote %s", path)
+    return True