#!/usr/bin/env python3 """Repackage pinned official Warzone 2100 4.7.0; regular npm builds are offline.""" # SPDX-License-Identifier: GPL-2.0-or-later from pathlib import Path import gzip, hashlib, html, json, re, tarfile, urllib.request, zipfile ROOT = Path(__file__).resolve().parent.parent CACHE = ROOT / 'artifacts/warzone2100/upstream' DEST = ROOT / 'public/computer-games/vendor/warzone2100' CHUNK = 20 * 1024 * 1024 UPSTREAM = { 'warzone2100_web_wasm32_archive.zip': 'f729df690038511e0dee662554475a9a9a7c8a9488a268d647b93e7953820ee3', 'warzone2100_src.tar.xz': '95ee4d5b88680ea1b1cf230b67ea84028e08a2458b84605ac9f7fb9eb97c4e37', } def sha(data): return hashlib.sha256(data).hexdigest() def write(path, data): path.parent.mkdir(parents=True, exist_ok=True); path.write_bytes(data.encode() if isinstance(data,str) else data) def record(path): return {'path':path.name, 'bytes':path.stat().st_size, 'sha256':sha(path.read_bytes())} def split(path, data): files=[] for i,start in enumerate(range(0,len(data),CHUNK)): part=path if len(data)<=CHUNK else path.with_name(path.name+f'.part{i+1:02d}') write(part,data[start:start+CHUNK]); files.append(record(part)) return files CACHE.mkdir(parents=True, exist_ok=True) ledger={} for name,digest in UPSTREAM.items(): url='https://github.com/Warzone2100/warzone2100/releases/download/4.7.0/'+name path=CACHE/name if not path.exists(): urllib.request.urlretrieve(url,path) if sha(path.read_bytes())!=digest: raise ValueError('Upstream checksum mismatch: '+name) ledger[name]={'url':url,'sha256':digest,'bytes':path.stat().st_size} with zipfile.ZipFile(CACHE/'warzone2100_web_wasm32_archive.zip') as z: data=z.read('warzone2100.data') wasm=z.read('warzone2100.wasm') script=z.read('warzone2100.js').decode() # Only generated-JS integration changes; WASM and asset contents remain exact. old='openDatabase(db=>checkCachedPackage' assert script.count(old)==1 script=script.replace(old,'if(Module.leafData){processPackageData(Module.leafData)}else '+old) old='preInit();run();' assert script.count(old)==1 script=script.replace(old,'Module.FS=FS;Module.leafPause=()=>{runtimeKeepalivePush();MainLoop.pause()};Module.leafResume=()=>{MainLoop.resume();runtimeKeepalivePop()};'+old) old='FS.syncfs(true,err=>{console.log("loaded from idbfs",FS.readdir(configDirPath));' assert script.count(old)==1 script=script.replace(old,'FS.syncfs(true,err=>{Module.leafSaveStatus?.(err?"unavailable":"restored");console.log("loaded from idbfs",FS.readdir(configDirPath));') old='xhr.open(requestMethod,url_,!fetchAttrSynchronous,userNameStr,passwordStr);' assert script.count(old)==1 script=script.replace(old,'if(/^https?:/.test(url_) && new URL(url_).origin!==location.origin) url_="/computer-games/vendor/warzone2100/offline.json";'+old) write(DEST/'offline.json','{}\n') write(DEST/'warzone2100.js','/* Leaf Arcade generated-JS changes, 2026-10-05; GPL-2.0-or-later. See NOTICE.txt. */\n'+script) write(DEST/'warzone2100.wasm.gz',gzip.compress(wasm,compresslevel=9,mtime=0)) parts=split(DEST/'game.data.gz',gzip.compress(data,compresslevel=9,mtime=0)) music=z.read('pkg/music/warzone2100-music.data') write(DEST/'music.data',music) music_js=z.read('pkg/music/warzone2100-music.js').decode() music_files=json.loads(re.search(r'loadPackage\((\{"files": .*?\})\);',music_js).group(1))['files'] manifest={'version':'4.7.0','script':record(DEST/'warzone2100.js'),'wasm':record(DEST/'warzone2100.wasm.gz'),'data':parts,'dataBytes':len(data),'extras':[record(DEST/'music.data')],'musicFiles':music_files} write(DEST/'package.json',json.dumps(manifest,indent=2)+'\n') with tarfile.open(CACHE/'warzone2100_src.tar.xz') as t: for name in ['COPYING','COPYING.NONGPL','COPYING.README','AUTHORS','platforms/emscripten/README-build.md','data/music/COPYING.README','data/music/COPYING.NONGPL']: try: write(DEST/name.replace('/','-'),t.extractfile('warzone2100/'+name).read()) except KeyError: pass # Retain bundled third-party notices separately as well as in complete source. notices=[] for member in t.getmembers(): if member.isfile() and member.size<200000 and ('3rdparty/' in member.name or '/pkg/licenses/' in member.name) and re.search(r'/(LICENSE[^/]*|COPYING[^/]*|copyright)$',member.name,re.I): notices.append(member.name+'\n'+t.extractfile(member).read().decode(errors='replace')) write(DEST/'THIRD-PARTY-NOTICES.txt','\n\n'.join(notices)) source=DEST/'source' archive=CACHE/'warzone2100_src.tar.xz' files=split(source/archive.name,archive.read_bytes()) write(source/'manifest.json',json.dumps({'name':archive.name,'sha256':UPSTREAM[archive.name],'parts':files},indent=2)+'\n') links=''.join(f'
  • {f["path"]} ({f["bytes"]:,} bytes)
    • ' for f in files) write(source/'index.html',f'''Warzone 2100 corresponding source

    Warzone 2100 4.7.0 — source and data

    Exact official release source and editable data, including third-party submodules, build instructions, licenses and credits. Numbered parts concatenate in order:

    cat warzone2100_src.tar.xz.part* > warzone2100_src.tar.xz\nSHA-256: {UPSTREAM[archive.name]}

    Build instructions: platforms/emscripten/README-build.md in the archive. Dependency versions are pinned in vcpkg.json and the bundled vcpkg overlay ports. Use the release web-build workflow for its Emscripten SDK version.

    Complete readable Leaf Arcade integration source archive (GPLv2+). Individual files: runtime.js, player HTML, CSS, repackaging script and exact generated-JS changes. The WASM is unchanged; the script bypasses the data cache using verified local bytes, exports FS, reports storage failures and routes optional remote checks to an empty local file.

    Full notices · Official source

    ''') write(source/'import-warzone2100.py',Path(__file__).read_bytes()) with tarfile.open(source/'leaf-integration.tar.gz','w:gz') as integration: for name in ['runtime.js','index.html','player.css']: integration.add(DEST/name,arcname='public/computer-games/vendor/warzone2100/'+name) integration.add(Path(__file__),arcname='scripts/import-warzone2100.py') write(DEST/'NOTICE.txt','''Warzone 2100 4.7.0 — Pumpkin Studios / Eidos and the Warzone 2100 Project. Engine and original source/data: GNU GPL version 2 or later, with the linking exception in COPYING.README. See COPYING, COPYING.README, AUTHORS and COPYING.NONGPL for complete terms, exceptions and credits. Some artwork is CC BY-SA 3.0 or CC0; original credits and notices are retained. Music credits and terms: data-music-COPYING.README and data-music-COPYING.NONGPL. Bundled third-party notices: THIRD-PARTY-NOTICES.txt and the full release source archive. Official WASM and data unchanged. No original commercial files are required. Leaf Arcade integration, 2026-10-05, GPLv2+: lazy verified local downloads, compressed/chunked data and WASM; preload bundled soundtrack; fit canvas, touch mouse gestures, pause/audio teardown, local saves and keyboard escape. Generated-JS changes: verified preload bypass; expose FS and keepalive-safe pause/resume; route optional remote\nupdate/compatibility checks to an empty local file; report IDBFS restore failure. Exact changes in source/import-warzone2100.py. Upstream launcher, analytics, CDN dependencies and service worker are not used. This browser edition is intended for local singleplayer; no video package or online service is supplied. The source download contains build instructions, editable data and upstream third-party sources. No upstream endorsement implied. https://wz2100.net/ ; https://github.com/Warzone2100/warzone2100 ''') initial=sum(f['bytes'] for f in [manifest['script'],manifest['wasm'],*manifest['data'],*manifest['extras']]) write(DEST/'provenance.json',json.dumps({'version':'4.7.0','initialBytes':initial,'upstream':ledger,'wasmUncompressedSHA256':sha(wasm),'dataUncompressedSHA256':sha(data),'files':[record(DEST/f['path']) for f in [manifest['script'],manifest['wasm'],*manifest['data'],*manifest['extras']]] + [record(DEST/name) for name in ['runtime.js','index.html','player.css','offline.json','NOTICE.txt']]},indent=2)+'\n') print(f'Initial download: {initial/1024/1024:.1f} MiB')