Bootstrap Warium NeoForge port scaffold

tools/warium_source.py

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+from __future__ import annotations
+
+import hashlib
+import json
+import re
+import shutil
+import urllib.request
+import zipfile
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+BUILD_DIR = ROOT / "build" / "warium-port"
+ORIGINAL_JAR = BUILD_DIR / "Warium-1.2.7.jar"
+ORIGINAL_URL = "https://cdn.modrinth.com/data/xgjvEen1/versions/4oIhAhRz/Warium%201.2.7.jar"
+ORIGINAL_SHA1 = "528d81630a23fb4004e3abdd99b16bd225cd1e92"
+MODID = "crusty_chunks"
+
+
+def download_original() -> Path:
+    BUILD_DIR.mkdir(parents=True, exist_ok=True)
+    if not ORIGINAL_JAR.exists() or sha1(ORIGINAL_JAR) != ORIGINAL_SHA1:
+        request = urllib.request.Request(
+            ORIGINAL_URL,
+            headers={"User-Agent": "MrSphay/Warium-NeoForge-Port/1.0"},
+        )
+        with urllib.request.urlopen(request) as response, ORIGINAL_JAR.open("wb") as out:
+            shutil.copyfileobj(response, out)
+    actual = sha1(ORIGINAL_JAR)
+    if actual != ORIGINAL_SHA1:
+        raise SystemExit(f"Original jar SHA1 mismatch: expected {ORIGINAL_SHA1}, got {actual}")
+    return ORIGINAL_JAR
+
+
+def sha1(path: Path) -> str:
+    digest = hashlib.sha1()
+    with path.open("rb") as handle:
+        for chunk in iter(lambda: handle.read(1024 * 1024), b""):
+            digest.update(chunk)
+    return digest.hexdigest()
+
+
+def clean_dir(path: Path) -> None:
+    if path.exists():
+        shutil.rmtree(path)
+    path.mkdir(parents=True, exist_ok=True)
+
+
+def safe_java_identifier(name: str, used: set[str]) -> str:
+    ident = re.sub(r"[^a-zA-Z0-9_]", "_", name).upper()
+    if not ident or ident[0].isdigit():
+        ident = "_" + ident
+    if ident in JAVA_KEYWORDS:
+        ident = ident + "_ENTRY"
+    base = ident
+    suffix = 2
+    while ident in used:
+        ident = f"{base}_{suffix}"
+        suffix += 1
+    used.add(ident)
+    return ident
+
+
+def write_json(path: Path, data: object) -> None:
+    path.parent.mkdir(parents=True, exist_ok=True)
+    path.write_text(json.dumps(data, indent=2, sort_keys=True) + "\n", encoding="utf-8")
+
+
+JAVA_KEYWORDS = {
+    "ABSTRACT", "ASSERT", "BOOLEAN", "BREAK", "BYTE", "CASE", "CATCH", "CHAR",
+    "CLASS", "CONST", "CONTINUE", "DEFAULT", "DO", "DOUBLE", "ELSE", "ENUM",
+    "EXTENDS", "FINAL", "FINALLY", "FLOAT", "FOR", "GOTO", "IF", "IMPLEMENTS",
+    "IMPORT", "INSTANCEOF", "INT", "INTERFACE", "LONG", "NATIVE", "NEW",
+    "PACKAGE", "PRIVATE", "PROTECTED", "PUBLIC", "RETURN", "SHORT", "STATIC",
+    "STRICTFP", "SUPER", "SWITCH", "SYNCHRONIZED", "THIS", "THROW", "THROWS",
+    "TRANSIENT", "TRY", "VOID", "VOLATILE", "WHILE",
+}