"""Validate the Laya model files, then install them into the debug app with adb.""" import argparse import hashlib import json import os from pathlib import Path import re import shlex import shutil import subprocess import sys PACKAGE = "com.laya" SCRIPT_DIR = Path(__file__).resolve().parent SHARED_FILES = ( "laya_ml_act_head_fp32.tflite", "laya_ml_calibration.json", "tokenizer.json", "tokenizer_config.json", "token_embeddings_fp16.bin", "token_embeddings.json", ) class InstallError(Exception): pass def sha256(path): digest = hashlib.sha256() with path.open("rb") as source: for chunk in iter(lambda: source.read(4 * 1024 * 1024), b""): digest.update(chunk) return digest.hexdigest() def inspect_apk(path): tool = os.environ.get("AAPT") if not tool: sdk = os.environ.get("ANDROID_HOME") or os.environ.get("ANDROID_SDK_ROOT") if sdk: tool = str(Path(sdk) / "build-tools/35.0.0/aapt") else: tool = shutil.which("aapt") if not tool: raise InstallError("Set ANDROID_HOME/ANDROID_SDK_ROOT to an SDK with Build Tools 35.0.0, " "or set AAPT to an aapt/aapt2 executable") result = subprocess.run([tool, "dump", "badging", str(path)], check=False, capture_output=True, text=True, timeout=30) if result.returncode: raise InstallError(f"Could not inspect APK with aapt: {result.stderr.strip()}") package = re.search(r"^package: name='([^']+)'", result.stdout, re.MULTILINE) return {"package": package.group(1) if package else None, "debuggable": "application-debuggable" in result.stdout.splitlines(), "inspection_tool": tool} def arguments(): parser = argparse.ArgumentParser(description=__doc__) parser.add_argument("--assets", required=True, type=Path, help="Flat directory containing the selected model assets") parser.add_argument("--graph", choices=("both", "wfp16", "fp32"), default="wfp16", help="S256 graph storage variant(s); default: wfp16 (shipped configuration)") parser.add_argument("--gate-rows", type=Path, help="Optional captured gate_rows_s256.json for the debug runner") parser.add_argument("--apk", type=Path, default=SCRIPT_DIR.parent / "app/build/outputs/apk/debug/app-debug.apk", help="Debug APK; default: module app/build/outputs/apk/debug/app-debug.apk") parser.add_argument("--validate-only", action="store_true", help="Validate local files and exit before any device access") parser.add_argument("--report", type=Path, help="Optional JSON validation/install report") return parser.parse_args() def validate(args, report): manifest = json.loads((SCRIPT_DIR / "assets.json").read_text(encoding="utf-8")) expected = {entry["name"]: entry for entry in manifest["files"]} variants = ("wfp16", "fp32") if args.graph == "both" else (args.graph,) names = [f"laya_ml_s256_embeds_{variant}.tflite" for variant in variants] names.extend(SHARED_FILES) sources = [(name, args.assets / name) for name in names] if args.gate_rows is not None: sources.append(("gate_rows_s256.json", args.gate_rows)) for name, source in sources: if not source.is_file(): raise InstallError(f"Missing source: {source}") size = source.stat().st_size digest = sha256(source) entry = expected[name] if size != entry["size_bytes"] or digest != entry["sha256"]: raise InstallError( f"Source size/SHA256 mismatch: {source}; got {size} B {digest}; " f"expected {entry['size_bytes']} B {entry['sha256']}" ) destination = "files/" + ("fixtures/" if name == "gate_rows_s256.json" else "") + name report["files"].append({"name": name, "source": str(source), "destination": destination, "size_bytes": size, "sha256": digest}) print(f"OK {name}: {size} B {digest}") table = expected["token_embeddings_fp16.bin"] metadata = json.loads((args.assets / "token_embeddings.json").read_text(encoding="utf-8")) if (metadata.get("shape") != [256000, 768] or metadata.get("dtype") != "float16" or metadata.get("byte_order") != "little" or metadata.get("layout") != "row-major" or metadata.get("filename") != "token_embeddings_fp16.bin" or metadata.get("sha256") != table["sha256"] or metadata.get("size_bytes") != table["size_bytes"] or table["size_bytes"] != 256000 * 768 * 2): raise InstallError("Token embedding metadata/table mismatch") report["embedding_metadata_matches"] = True if not args.apk.is_file() or args.apk.stat().st_size == 0: raise InstallError(f"Missing or empty debug APK: {args.apk}; run :app:assembleDebug first") report["apk"] = {"source": str(args.apk), "size_bytes": args.apk.stat().st_size, "sha256": sha256(args.apk)} report["apk"].update(inspect_apk(args.apk)) if report["apk"]["package"] != PACKAGE: raise InstallError(f"APK package must be {PACKAGE}; got {report['apk']['package']!r}") if not report["apk"]["debuggable"]: raise InstallError("APK must be debuggable so run-as can install its external assets") print(f"OK debug APK: {report['apk']['size_bytes']} B {report['apk']['sha256']}") report["status"] = "PASS" def device_serial(): serial = os.environ.get("ANDROID_SERIAL") if not serial: raise InstallError("Set ANDROID_SERIAL to the target device serial") if not re.fullmatch(r"[A-Za-z0-9._-]+", serial): raise InstallError("Invalid ANDROID_SERIAL") return serial def install(args, report, serial): transport_available = True def adb(*command, check=True): nonlocal transport_available if device_serial() != serial: raise InstallError("ANDROID_SERIAL changed after the installation started") report["adb_executed"] = True timeout = 180 if command[0] in ("install", "push") else 45 try: result = subprocess.run(["adb", "-s", serial, *command], check=False, capture_output=True, text=True, timeout=timeout) except subprocess.TimeoutExpired as error: transport_available = False raise InstallError(f"adb {' '.join(command)} timed out after {timeout} s; " "no further device commands will run") from error except OSError as error: transport_available = False raise InstallError(f"Could not run adb: {error}; " "no further device commands will run") from error detail = f"{result.stderr.strip()} {result.stdout.strip()}" lowered = detail.lower() if result.returncode and ( "offline" in lowered or "no devices/emulators" in lowered or ("device" in lowered and "not found" in lowered) or "closed" in lowered or "disconnected" in lowered or "transport" in lowered or "protocol fault" in lowered): transport_available = False if result.returncode and check: raise InstallError(f"adb {' '.join(command)} failed ({result.returncode}): " f"{detail}") return result.stdout.replace("\r", "").strip() packages = adb("shell", "pm", "list", "packages", PACKAGE).splitlines() if f"package:{PACKAGE}" not in packages: adb("install", str(args.apk)) else: installed = adb("shell", "pm", "path", PACKAGE) if not installed.startswith("package:/") or "\n" in installed: raise InstallError(f"Unexpected installed package layout; refusing: {installed}") installed_path = installed.removeprefix("package:") installed_sha = adb("shell", "sha256sum", shlex.quote(installed_path)).split() if not installed_sha or installed_sha[0] != report["apk"]["sha256"]: raise InstallError("com.laya already exists with a different APK. " "Refusing to overwrite package or assets; install the intended " "debug APK separately with adb install -r first.") staging = f"/data/local/tmp/laya_{serial}_{os.getpid()}" pending = None adb("shell", "mkdir", "-p", staging) try: adb("shell", "run-as", PACKAGE, "mkdir", "-p", "files/fixtures") for entry in report["files"]: pending = staging + "/" + entry["name"] print(f"Staging {entry['name']}") adb("push", entry["source"], pending) adb("shell", "run-as", PACKAGE, "cp", pending, entry["destination"]) adb("shell", "rm", "-f", pending) pending = None finally: if transport_available and pending is not None: adb("shell", "rm", "-f", pending, check=False) if transport_available: adb("shell", "rmdir", staging, check=False) report["installed"] = True print(f"Laya assets installed for {serial}. No app was launched.") def main(): args = arguments() report = {"status": "FAIL", "graph": args.graph, "validate_only": args.validate_only, "adb_executed": False, "files": []} try: validate(args, report) if args.validate_only: print("Local source validation PASS. No adb command was run.") else: serial = device_serial() install(args, report, serial) except (InstallError, OSError, ValueError, KeyError, TypeError, subprocess.TimeoutExpired) as error: report["status"] = "FAIL" report["error"] = str(error) print(str(error), file=sys.stderr) finally: if args.report is not None: args.report.parent.mkdir(parents=True, exist_ok=True) args.report.write_text(json.dumps(report, indent=2) + "\n", encoding="utf-8") return 0 if report["status"] == "PASS" else 1 if __name__ == "__main__": sys.exit(main())