Port Android server runtime to GaCy Go

tools/package_go_runtime.py

@@ -0,0 +1,54 @@
+"""Build GaCy Go for Android and package its runtime data.
+
+Usage: python tools/package_go_runtime.py PATH_TO_GAC_GO
+The source checkout is read only; its current source/resources are packaged.
+Mutable saves are seeded from the checkout's committed defaults, never from
+the operator's live working files.
+"""
+import os
+from pathlib import Path
+import subprocess
+import sys
+import zipfile
+
+root = Path(__file__).resolve().parents[1]
+source = Path(sys.argv[1]).resolve()
+if not (source / "go.mod").is_file():
+    raise SystemExit("Expected a GaC-hkrpg-go checkout")
+
+native = root / "app/src/main/jniLibs/arm64-v8a"
+native.mkdir(parents=True, exist_ok=True)
+env = os.environ.copy()
+env.update(GOOS="android", GOARCH="arm64", CGO_ENABLED="0")
+for name in ("sdkserver", "gameserver"):
+    subprocess.run(["go", "build", "-o", str(native / f"libgacy_{name}.so"), f"./cmd/{name}"],
+                   cwd=source, env=env, check=True)
+
+# Optional emulator-only binaries use Linux syscalls on the x86_64 emulator.
+# They are excluded from ordinary ARM64 builds.
+if "--emulator" in sys.argv[2:]:
+    emulator = root / "app/src/debug/jniLibs/x86_64"
+    emulator.mkdir(parents=True, exist_ok=True)
+    env.update(GOOS="linux", GOARCH="amd64", CGO_ENABLED="0")
+    for name in ("sdkserver", "gameserver"):
+        subprocess.run(["go", "build", "-o", str(emulator / f"libgacy_{name}.so"), f"./cmd/{name}"],
+                       cwd=source, env=env, check=True)
+
+archive = root / "app/src/goAssets/gacy-go-data.zip"
+archive.parent.mkdir(parents=True, exist_ok=True)
+resources = ("server.json", "hotfix.json", "versions.json", "res.json",
+             "teleports.json", "challenge_data.json", "mission_unlocks.json")
+scripts = ("damage_analyst_live.lua", "fps_settings_120.lua", "freecam.lua",
+           "hide_ui.lua", "navigation_profiles.lua", "ping_rainbow.lua")
+with zipfile.ZipFile(archive, "w", zipfile.ZIP_DEFLATED, compresslevel=6) as z:
+    for name in resources:
+        z.write(source / name, name)
+    for path in (source / "resources").rglob("*"):
+        if path.is_file():
+            z.write(path, path.relative_to(source).as_posix())
+    for name in scripts:
+        z.write(source / "scripts" / name, "scripts/" + name)
+    for name in ("persistent", "freesr-data.json"):
+        data = subprocess.check_output(["git", "show", f"HEAD:{name}"], cwd=source)
+        z.writestr(name, data)
+print(f"Packaged Go runtime: {archive}")