f84cce6f25
Adds a script for running the test suite on Android emulator devices. Starting with a fresh install of the Android Commandline tools; the script manages installing other requirements, starting the emulator (if required), and retrieving results from that emulator.
635 lines
22 KiB
Python
Executable File
635 lines
22 KiB
Python
Executable File
#!/usr/bin/env python3
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import asyncio
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import argparse
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from glob import glob
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import os
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import re
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import shlex
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import shutil
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import signal
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import subprocess
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import sys
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import sysconfig
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from asyncio import wait_for
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from contextlib import asynccontextmanager
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from os.path import basename, relpath
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from pathlib import Path
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from subprocess import CalledProcessError
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from tempfile import TemporaryDirectory
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SCRIPT_NAME = Path(__file__).name
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CHECKOUT = Path(__file__).resolve().parent.parent
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ANDROID_DIR = CHECKOUT / "Android"
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TESTBED_DIR = ANDROID_DIR / "testbed"
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CROSS_BUILD_DIR = CHECKOUT / "cross-build"
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APP_ID = "org.python.testbed"
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DECODE_ARGS = ("UTF-8", "backslashreplace")
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try:
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android_home = Path(os.environ['ANDROID_HOME'])
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except KeyError:
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sys.exit("The ANDROID_HOME environment variable is required.")
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adb = Path(
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f"{android_home}/platform-tools/adb"
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+ (".exe" if os.name == "nt" else "")
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)
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gradlew = Path(
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f"{TESTBED_DIR}/gradlew"
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+ (".bat" if os.name == "nt" else "")
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)
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logcat_started = False
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def delete_glob(pattern):
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# Path.glob doesn't accept non-relative patterns.
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for path in glob(str(pattern)):
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path = Path(path)
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print(f"Deleting {path} ...")
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if path.is_dir() and not path.is_symlink():
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shutil.rmtree(path)
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else:
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path.unlink()
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def subdir(name, *, clean=None):
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path = CROSS_BUILD_DIR / name
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if clean:
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delete_glob(path)
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if not path.exists():
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if clean is None:
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sys.exit(
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f"{path} does not exist. Create it by running the appropriate "
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f"`configure` subcommand of {SCRIPT_NAME}.")
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else:
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path.mkdir(parents=True)
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return path
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def run(command, *, host=None, env=None, log=True, **kwargs):
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kwargs.setdefault("check", True)
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if env is None:
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env = os.environ.copy()
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original_env = env.copy()
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if host:
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env_script = ANDROID_DIR / "android-env.sh"
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env_output = subprocess.run(
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f"set -eu; "
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f"HOST={host}; "
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f"PREFIX={subdir(host)}/prefix; "
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f". {env_script}; "
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f"export",
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check=True, shell=True, text=True, stdout=subprocess.PIPE
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).stdout
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for line in env_output.splitlines():
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# We don't require every line to match, as there may be some other
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# output from installing the NDK.
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if match := re.search(
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"^(declare -x |export )?(\\w+)=['\"]?(.*?)['\"]?$", line
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):
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key, value = match[2], match[3]
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if env.get(key) != value:
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print(line)
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env[key] = value
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if env == original_env:
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raise ValueError(f"Found no variables in {env_script.name} output:\n"
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+ env_output)
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if log:
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print(">", " ".join(map(str, command)))
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return subprocess.run(command, env=env, **kwargs)
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def build_python_path():
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"""The path to the build Python binary."""
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build_dir = subdir("build")
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binary = build_dir / "python"
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if not binary.is_file():
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binary = binary.with_suffix(".exe")
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if not binary.is_file():
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raise FileNotFoundError("Unable to find `python(.exe)` in "
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f"{build_dir}")
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return binary
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def configure_build_python(context):
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os.chdir(subdir("build", clean=context.clean))
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command = [relpath(CHECKOUT / "configure")]
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if context.args:
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command.extend(context.args)
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run(command)
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def make_build_python(context):
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os.chdir(subdir("build"))
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run(["make", "-j", str(os.cpu_count())])
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def unpack_deps(host):
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deps_url = "https://github.com/beeware/cpython-android-source-deps/releases/download"
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for name_ver in ["bzip2-1.0.8-1", "libffi-3.4.4-2", "openssl-3.0.13-1",
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"sqlite-3.45.1-0", "xz-5.4.6-0"]:
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filename = f"{name_ver}-{host}.tar.gz"
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download(f"{deps_url}/{name_ver}/{filename}")
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run(["tar", "-xf", filename])
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os.remove(filename)
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def download(url, target_dir="."):
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out_path = f"{target_dir}/{basename(url)}"
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run(["curl", "-Lf", "-o", out_path, url])
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return out_path
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def configure_host_python(context):
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host_dir = subdir(context.host, clean=context.clean)
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prefix_dir = host_dir / "prefix"
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if not prefix_dir.exists():
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prefix_dir.mkdir()
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os.chdir(prefix_dir)
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unpack_deps(context.host)
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build_dir = host_dir / "build"
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build_dir.mkdir(exist_ok=True)
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os.chdir(build_dir)
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command = [
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# Basic cross-compiling configuration
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relpath(CHECKOUT / "configure"),
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f"--host={context.host}",
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f"--build={sysconfig.get_config_var('BUILD_GNU_TYPE')}",
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f"--with-build-python={build_python_path()}",
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"--without-ensurepip",
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# Android always uses a shared libpython.
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"--enable-shared",
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"--without-static-libpython",
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# Dependent libraries. The others are found using pkg-config: see
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# android-env.sh.
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f"--with-openssl={prefix_dir}",
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]
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if context.args:
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command.extend(context.args)
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run(command, host=context.host)
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def make_host_python(context):
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# The CFLAGS and LDFLAGS set in android-env include the prefix dir, so
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# delete any previously-installed Python libs and include files to prevent
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# them being used during the build.
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host_dir = subdir(context.host)
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prefix_dir = host_dir / "prefix"
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delete_glob(f"{prefix_dir}/include/python*")
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delete_glob(f"{prefix_dir}/lib/libpython*")
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os.chdir(host_dir / "build")
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run(["make", "-j", str(os.cpu_count())], host=context.host)
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run(["make", "install", f"prefix={prefix_dir}"], host=context.host)
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def build_all(context):
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steps = [configure_build_python, make_build_python, configure_host_python,
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make_host_python]
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for step in steps:
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step(context)
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def clean_all(context):
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delete_glob(CROSS_BUILD_DIR)
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def setup_sdk():
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sdkmanager = android_home / (
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"cmdline-tools/latest/bin/sdkmanager"
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+ (".bat" if os.name == "nt" else "")
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)
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# Gradle will fail if it needs to install an SDK package whose license
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# hasn't been accepted, so pre-accept all licenses.
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if not all((android_home / "licenses" / path).exists() for path in [
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"android-sdk-arm-dbt-license", "android-sdk-license"
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]):
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run([sdkmanager, "--licenses"], text=True, input="y\n" * 100)
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# Gradle may install this automatically, but we can't rely on that because
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# we need to run adb within the logcat task.
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if not adb.exists():
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run([sdkmanager, "platform-tools"])
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# To avoid distributing compiled artifacts without corresponding source code,
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# the Gradle wrapper is not included in the CPython repository. Instead, we
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# extract it from the Gradle release.
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def setup_testbed():
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if all((TESTBED_DIR / path).exists() for path in [
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"gradlew", "gradlew.bat", "gradle/wrapper/gradle-wrapper.jar",
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]):
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return
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ver_long = "8.7.0"
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ver_short = ver_long.removesuffix(".0")
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for filename in ["gradlew", "gradlew.bat"]:
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out_path = download(
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f"https://raw.githubusercontent.com/gradle/gradle/v{ver_long}/{filename}",
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TESTBED_DIR)
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os.chmod(out_path, 0o755)
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with TemporaryDirectory(prefix=SCRIPT_NAME) as temp_dir:
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bin_zip = download(
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f"https://services.gradle.org/distributions/gradle-{ver_short}-bin.zip",
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temp_dir)
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outer_jar = f"gradle-{ver_short}/lib/plugins/gradle-wrapper-{ver_short}.jar"
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run(["unzip", "-d", temp_dir, bin_zip, outer_jar])
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run(["unzip", "-o", "-d", f"{TESTBED_DIR}/gradle/wrapper",
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f"{temp_dir}/{outer_jar}", "gradle-wrapper.jar"])
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# run_testbed will build the app automatically, but it hides the Gradle output
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# by default, so it's useful to have this as a separate command for the buildbot.
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def build_testbed(context):
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setup_sdk()
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setup_testbed()
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run(
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[gradlew, "--console", "plain", "packageDebug", "packageDebugAndroidTest"],
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cwd=TESTBED_DIR,
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)
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# Work around a bug involving sys.exit and TaskGroups
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# (https://github.com/python/cpython/issues/101515).
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def exit(*args):
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raise MySystemExit(*args)
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class MySystemExit(Exception):
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pass
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# The `test` subcommand runs all subprocesses through this context manager so
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# that no matter what happens, they can always be cancelled from another task,
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# and they will always be cleaned up on exit.
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@asynccontextmanager
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async def async_process(*args, **kwargs):
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process = await asyncio.create_subprocess_exec(*args, **kwargs)
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try:
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yield process
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finally:
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if process.returncode is None:
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# Allow a reasonably long time for Gradle to clean itself up,
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# because we don't want stale emulators left behind.
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timeout = 10
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process.terminate()
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try:
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await wait_for(process.wait(), timeout)
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except TimeoutError:
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print(
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f"Command {args} did not terminate after {timeout} seconds "
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f" - sending SIGKILL"
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)
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process.kill()
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# Even after killing the process we must still wait for it,
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# otherwise we'll get the warning "Exception ignored in __del__".
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await wait_for(process.wait(), timeout=1)
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async def async_check_output(*args, **kwargs):
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async with async_process(
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*args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, **kwargs
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) as process:
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stdout, stderr = await process.communicate()
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if process.returncode == 0:
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return stdout.decode(*DECODE_ARGS)
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else:
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raise CalledProcessError(
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process.returncode, args,
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stdout.decode(*DECODE_ARGS), stderr.decode(*DECODE_ARGS)
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)
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# Return a list of the serial numbers of connected devices. Emulators will have
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# serials of the form "emulator-5678".
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async def list_devices():
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serials = []
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header_found = False
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lines = (await async_check_output(adb, "devices")).splitlines()
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for line in lines:
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# Ignore blank lines, and all lines before the header.
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line = line.strip()
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if line == "List of devices attached":
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header_found = True
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elif header_found and line:
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try:
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serial, status = line.split()
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except ValueError:
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raise ValueError(f"failed to parse {line!r}")
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if status == "device":
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serials.append(serial)
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if not header_found:
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raise ValueError(f"failed to parse {lines}")
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return serials
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async def find_device(context, initial_devices):
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if context.managed:
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print("Waiting for managed device - this may take several minutes")
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while True:
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new_devices = set(await list_devices()).difference(initial_devices)
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if len(new_devices) == 0:
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await asyncio.sleep(1)
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elif len(new_devices) == 1:
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serial = new_devices.pop()
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print(f"Serial: {serial}")
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return serial
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else:
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exit(f"Found more than one new device: {new_devices}")
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else:
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return context.connected
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# An older version of this script in #121595 filtered the logs by UID instead.
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# But logcat can't filter by UID until API level 31. If we ever switch back to
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# filtering by UID, we'll also have to filter by time so we only show messages
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# produced after the initial call to `stop_app`.
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#
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# We're more likely to miss the PID because it's shorter-lived, so there's a
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# workaround in PythonSuite.kt to stop it being *too* short-lived.
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async def find_pid(serial):
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print("Waiting for app to start - this may take several minutes")
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shown_error = False
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while True:
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try:
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pid = (await async_check_output(
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adb, "-s", serial, "shell", "pidof", "-s", APP_ID
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)).strip()
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except CalledProcessError as e:
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# If the app isn't running yet, pidof gives no output. So if there
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# is output, there must have been some other error. However, this
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# sometimes happens transiently, especially when running a managed
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# emulator for the first time, so don't make it fatal.
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if (e.stdout or e.stderr) and not shown_error:
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print_called_process_error(e)
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print("This may be transient, so continuing to wait")
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shown_error = True
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else:
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# Some older devices (e.g. Nexus 4) return zero even when no process
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# was found, so check whether we actually got any output.
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if pid:
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print(f"PID: {pid}")
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return pid
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# Loop fairly rapidly to avoid missing a short-lived process.
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await asyncio.sleep(0.2)
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async def logcat_task(context, initial_devices):
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# Gradle may need to do some large downloads of libraries and emulator
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# images. This will happen during find_device in --managed mode, or find_pid
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# in --connected mode.
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startup_timeout = 600
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serial = await wait_for(find_device(context, initial_devices), startup_timeout)
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pid = await wait_for(find_pid(serial), startup_timeout)
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args = [adb, "-s", serial, "logcat", "--pid", pid, "--format", "tag"]
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hidden_output = []
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async with async_process(
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*args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
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) as process:
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while line := (await process.stdout.readline()).decode(*DECODE_ARGS):
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if match := re.fullmatch(r"([A-Z])/(.*)", line, re.DOTALL):
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level, message = match.groups()
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else:
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# If the regex doesn't match, this is probably the second or
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# subsequent line of a multi-line message. Python won't produce
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# such messages, but other components might.
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level, message = None, line
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# Put high-level messages on stderr so they're highlighted in the
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# buildbot logs. This will include Python's own stderr.
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stream = (
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sys.stderr
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if level in ["E", "F"] # ERROR and FATAL (aka ASSERT)
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else sys.stdout
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)
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# To simplify automated processing of the output, e.g. a buildbot
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# posting a failure notice on a GitHub PR, we strip the level and
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# tag indicators from Python's stdout and stderr.
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for prefix in ["python.stdout: ", "python.stderr: "]:
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if message.startswith(prefix):
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global logcat_started
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logcat_started = True
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stream.write(message.removeprefix(prefix))
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break
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else:
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if context.verbose:
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# Non-Python messages add a lot of noise, but they may
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# sometimes help explain a failure.
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stream.write(line)
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else:
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hidden_output.append(line)
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# If the device disconnects while logcat is running, which always
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# happens in --managed mode, some versions of adb return non-zero.
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# Distinguish this from a logcat startup error by checking whether we've
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# received a message from Python yet.
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status = await wait_for(process.wait(), timeout=1)
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if status != 0 and not logcat_started:
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raise CalledProcessError(status, args, "".join(hidden_output))
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def stop_app(serial):
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run([adb, "-s", serial, "shell", "am", "force-stop", APP_ID], log=False)
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async def gradle_task(context):
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env = os.environ.copy()
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if context.managed:
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task_prefix = context.managed
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else:
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task_prefix = "connected"
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env["ANDROID_SERIAL"] = context.connected
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args = [
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gradlew, "--console", "plain", f"{task_prefix}DebugAndroidTest",
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"-Pandroid.testInstrumentationRunnerArguments.pythonArgs="
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+ shlex.join(context.args),
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]
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hidden_output = []
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try:
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async with async_process(
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*args, cwd=TESTBED_DIR, env=env,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
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) as process:
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while line := (await process.stdout.readline()).decode(*DECODE_ARGS):
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# Gradle may take several minutes to install SDK packages, so
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# it's worth showing those messages even in non-verbose mode.
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if context.verbose or line.startswith('Preparing "Install'):
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sys.stdout.write(line)
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else:
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hidden_output.append(line)
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status = await wait_for(process.wait(), timeout=1)
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if status == 0:
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exit(0)
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else:
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raise CalledProcessError(status, args)
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finally:
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# If logcat never started, then something has gone badly wrong, so the
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# user probably wants to see the Gradle output even in non-verbose mode.
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if hidden_output and not logcat_started:
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sys.stdout.write("".join(hidden_output))
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# Gradle does not stop the tests when interrupted.
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if context.connected:
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stop_app(context.connected)
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async def run_testbed(context):
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setup_sdk()
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setup_testbed()
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if context.managed:
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# In this mode, Gradle will create a device with an unpredictable name.
|
|
# So we save a list of the running devices before starting Gradle, and
|
|
# find_device then waits for a new device to appear.
|
|
initial_devices = await list_devices()
|
|
else:
|
|
# In case the previous shutdown was unclean, make sure the app isn't
|
|
# running, otherwise we might show logs from a previous run. This is
|
|
# unnecessary in --managed mode, because Gradle creates a new emulator
|
|
# every time.
|
|
stop_app(context.connected)
|
|
initial_devices = None
|
|
|
|
try:
|
|
async with asyncio.TaskGroup() as tg:
|
|
tg.create_task(logcat_task(context, initial_devices))
|
|
tg.create_task(gradle_task(context))
|
|
except* MySystemExit as e:
|
|
raise SystemExit(*e.exceptions[0].args) from None
|
|
except* CalledProcessError as e:
|
|
# Extract it from the ExceptionGroup so it can be handled by `main`.
|
|
raise e.exceptions[0]
|
|
|
|
|
|
# Handle SIGTERM the same way as SIGINT. This ensures that if we're terminated
|
|
# by the buildbot worker, we'll make an attempt to clean up our subprocesses.
|
|
def install_signal_handler():
|
|
def signal_handler(*args):
|
|
os.kill(os.getpid(), signal.SIGINT)
|
|
|
|
signal.signal(signal.SIGTERM, signal_handler)
|
|
|
|
|
|
def parse_args():
|
|
parser = argparse.ArgumentParser()
|
|
subcommands = parser.add_subparsers(dest="subcommand")
|
|
build = subcommands.add_parser("build", help="Build everything")
|
|
configure_build = subcommands.add_parser("configure-build",
|
|
help="Run `configure` for the "
|
|
"build Python")
|
|
make_build = subcommands.add_parser("make-build",
|
|
help="Run `make` for the build Python")
|
|
configure_host = subcommands.add_parser("configure-host",
|
|
help="Run `configure` for Android")
|
|
make_host = subcommands.add_parser("make-host",
|
|
help="Run `make` for Android")
|
|
subcommands.add_parser(
|
|
"clean", help="Delete the cross-build directory")
|
|
|
|
for subcommand in build, configure_build, configure_host:
|
|
subcommand.add_argument(
|
|
"--clean", action="store_true", default=False, dest="clean",
|
|
help="Delete any relevant directories before building")
|
|
for subcommand in build, configure_host, make_host:
|
|
subcommand.add_argument(
|
|
"host", metavar="HOST",
|
|
choices=["aarch64-linux-android", "x86_64-linux-android"],
|
|
help="Host triplet: choices=[%(choices)s]")
|
|
for subcommand in build, configure_build, configure_host:
|
|
subcommand.add_argument("args", nargs="*",
|
|
help="Extra arguments to pass to `configure`")
|
|
|
|
subcommands.add_parser(
|
|
"build-testbed", help="Build the testbed app")
|
|
test = subcommands.add_parser(
|
|
"test", help="Run the test suite")
|
|
test.add_argument(
|
|
"-v", "--verbose", action="store_true",
|
|
help="Show Gradle output, and non-Python logcat messages")
|
|
device_group = test.add_mutually_exclusive_group(required=True)
|
|
device_group.add_argument(
|
|
"--connected", metavar="SERIAL", help="Run on a connected device. "
|
|
"Connect it yourself, then get its serial from `adb devices`.")
|
|
device_group.add_argument(
|
|
"--managed", metavar="NAME", help="Run on a Gradle-managed device. "
|
|
"These are defined in `managedDevices` in testbed/app/build.gradle.kts.")
|
|
test.add_argument(
|
|
"args", nargs="*", help=f"Arguments for `python -m test`. "
|
|
f"Separate them from {SCRIPT_NAME}'s own arguments with `--`.")
|
|
|
|
return parser.parse_args()
|
|
|
|
|
|
def main():
|
|
install_signal_handler()
|
|
context = parse_args()
|
|
dispatch = {"configure-build": configure_build_python,
|
|
"make-build": make_build_python,
|
|
"configure-host": configure_host_python,
|
|
"make-host": make_host_python,
|
|
"build": build_all,
|
|
"clean": clean_all,
|
|
"build-testbed": build_testbed,
|
|
"test": run_testbed}
|
|
|
|
try:
|
|
result = dispatch[context.subcommand](context)
|
|
if asyncio.iscoroutine(result):
|
|
asyncio.run(result)
|
|
except CalledProcessError as e:
|
|
print_called_process_error(e)
|
|
sys.exit(1)
|
|
|
|
|
|
def print_called_process_error(e):
|
|
for stream_name in ["stdout", "stderr"]:
|
|
content = getattr(e, stream_name)
|
|
stream = getattr(sys, stream_name)
|
|
if content:
|
|
stream.write(content)
|
|
if not content.endswith("\n"):
|
|
stream.write("\n")
|
|
|
|
# Format the command so it can be copied into a shell. shlex uses single
|
|
# quotes, so we surround the whole command with double quotes.
|
|
args_joined = (
|
|
e.cmd if isinstance(e.cmd, str)
|
|
else " ".join(shlex.quote(str(arg)) for arg in e.cmd)
|
|
)
|
|
print(
|
|
f'Command "{args_joined}" returned exit status {e.returncode}'
|
|
)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|