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191 lines
7.7 KiB
191 lines
7.7 KiB
#!/usr/bin/env python
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#
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# Copyright 2018 - The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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r"""RemoteImageLocalInstance class.
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Create class that is responsible for creating a local instance AVD with a
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remote image.
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"""
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import logging
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import os
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import subprocess
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import sys
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from acloud import errors
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from acloud.create import local_image_local_instance
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from acloud.internal import constants
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from acloud.internal.lib import android_build_client
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from acloud.internal.lib import auth
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from acloud.internal.lib import utils
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from acloud.setup import setup_common
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logger = logging.getLogger(__name__)
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# Download remote image variables.
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_CUTTLEFISH_COMMON_BIN_PATH = "/usr/lib/cuttlefish-common/bin/"
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_CONFIRM_DOWNLOAD_DIR = ("Download dir %(download_dir)s does not have enough "
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"space (available space %(available_space)sGB, "
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"require %(required_space)sGB).\nPlease enter "
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"alternate path or 'q' to exit: ")
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_HOME_FOLDER = os.path.expanduser("~")
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# The downloaded image artifacts will take up ~8G:
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# $du -lh --time $ANDROID_PRODUCT_OUT/aosp_cf_x86_phone-img-eng.XXX.zip
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# 422M
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# And decompressed becomes 7.2G (as of 11/2018).
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# Let's add an extra buffer (~2G) to make sure user has enough disk space
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# for the downloaded image artifacts.
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_REQUIRED_SPACE = 10
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@utils.TimeExecute(function_description="Downloading Android Build image")
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def DownloadAndProcessImageFiles(avd_spec):
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"""Download the CF image artifacts and process them.
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To download rom images, Acloud would download the tool fetch_cvd that can
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help process mixed build images.
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Args:
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avd_spec: AVDSpec object that tells us what we're going to create.
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Returns:
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extract_path: String, path to image folder.
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Raises:
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errors.GetRemoteImageError: Fails to download rom images.
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"""
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cfg = avd_spec.cfg
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build_id = avd_spec.remote_image[constants.BUILD_ID]
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build_branch = avd_spec.remote_image[constants.BUILD_BRANCH]
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build_target = avd_spec.remote_image[constants.BUILD_TARGET]
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extract_path = os.path.join(
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avd_spec.image_download_dir,
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constants.TEMP_ARTIFACTS_FOLDER,
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build_id + build_target)
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logger.debug("Extract path: %s", extract_path)
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# TODO(b/117189191): If extract folder exists, check if the files are
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# already downloaded and skip this step if they are.
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if not os.path.exists(extract_path):
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os.makedirs(extract_path)
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build_api = (
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android_build_client.AndroidBuildClient(auth.CreateCredentials(cfg)))
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# Download rom images via fetch_cvd
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fetch_cvd = os.path.join(extract_path, constants.FETCH_CVD)
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build_api.DownloadFetchcvd(fetch_cvd, cfg.fetch_cvd_version)
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fetch_cvd_build_args = build_api.GetFetchBuildArgs(
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build_id, build_branch, build_target,
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avd_spec.system_build_info.get(constants.BUILD_ID),
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avd_spec.system_build_info.get(constants.BUILD_BRANCH),
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avd_spec.system_build_info.get(constants.BUILD_TARGET),
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avd_spec.kernel_build_info.get(constants.BUILD_ID),
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avd_spec.kernel_build_info.get(constants.BUILD_BRANCH),
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avd_spec.kernel_build_info.get(constants.BUILD_TARGET),
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avd_spec.bootloader_build_info.get(constants.BUILD_ID),
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avd_spec.bootloader_build_info.get(constants.BUILD_BRANCH),
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avd_spec.bootloader_build_info.get(constants.BUILD_TARGET))
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creds_cache_file = os.path.join(_HOME_FOLDER, cfg.creds_cache_file)
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fetch_cvd_cert_arg = build_api.GetFetchCertArg(creds_cache_file)
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fetch_cvd_args = [fetch_cvd, "-directory=%s" % extract_path,
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fetch_cvd_cert_arg]
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fetch_cvd_args.extend(fetch_cvd_build_args)
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logger.debug("Download images command: %s", fetch_cvd_args)
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try:
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subprocess.check_call(fetch_cvd_args)
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except subprocess.CalledProcessError as e:
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raise errors.GetRemoteImageError("Fails to download images: %s" % e)
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return extract_path
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def ConfirmDownloadRemoteImageDir(download_dir):
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"""Confirm download remote image directory.
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If available space of download_dir is less than _REQUIRED_SPACE, ask
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the user to choose a different download dir or to exit out since acloud will
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fail to download the artifacts due to insufficient disk space.
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Args:
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download_dir: String, a directory for download and decompress.
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Returns:
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String, Specific download directory when user confirm to change.
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"""
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while True:
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download_dir = os.path.expanduser(download_dir)
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if not os.path.exists(download_dir):
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answer = utils.InteractWithQuestion(
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"No such directory %s.\nEnter 'y' to create it, enter "
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"anything else to exit out[y/N]: " % download_dir)
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if answer.lower() == "y":
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os.makedirs(download_dir)
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else:
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sys.exit(constants.EXIT_BY_USER)
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stat = os.statvfs(download_dir)
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available_space = stat.f_bavail*stat.f_bsize/(1024)**3
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if available_space < _REQUIRED_SPACE:
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download_dir = utils.InteractWithQuestion(
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_CONFIRM_DOWNLOAD_DIR % {"download_dir":download_dir,
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"available_space":available_space,
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"required_space":_REQUIRED_SPACE})
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if download_dir.lower() == "q":
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sys.exit(constants.EXIT_BY_USER)
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else:
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return download_dir
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class RemoteImageLocalInstance(local_image_local_instance.LocalImageLocalInstance):
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"""Create class for a remote image local instance AVD.
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RemoteImageLocalInstance just defines logic in downloading the remote image
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artifacts and leverages the existing logic to launch a local instance in
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LocalImageLocalInstance.
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"""
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def GetImageArtifactsPath(self, avd_spec):
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"""Download the image artifacts and return the paths to them.
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Args:
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avd_spec: AVDSpec object that tells us what we're going to create.
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Raises:
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errors.NoCuttlefishCommonInstalled: cuttlefish-common doesn't install.
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Returns:
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local_image_local_instance.ArtifactPaths object.
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"""
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if not setup_common.PackageInstalled("cuttlefish-common"):
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raise errors.NoCuttlefishCommonInstalled(
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"Package [cuttlefish-common] is not installed!\n"
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"Please run 'acloud setup --host' to install.")
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avd_spec.image_download_dir = ConfirmDownloadRemoteImageDir(
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avd_spec.image_download_dir)
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image_dir = DownloadAndProcessImageFiles(avd_spec)
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launch_cvd_path = os.path.join(image_dir, "bin",
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constants.CMD_LAUNCH_CVD)
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if not os.path.exists(launch_cvd_path):
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raise errors.GetCvdLocalHostPackageError(
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"No launch_cvd found. Please check downloaded artifacts dir: %s"
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% image_dir)
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# This method does not set the optional fields because launch_cvd loads
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# the paths from the fetcher config in image_dir.
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return local_image_local_instance.ArtifactPaths(
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image_dir, image_dir, None, None, None, None)
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