You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
4.8 KiB
142 lines
4.8 KiB
#!/usr/bin/env python
|
|
#
|
|
# Copyright 2018 - The Android Open Source Project
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
"""Common code used by acloud setup tools."""
|
|
|
|
from __future__ import print_function
|
|
import logging
|
|
import re
|
|
import subprocess
|
|
|
|
from acloud import errors
|
|
from acloud.internal.lib import utils
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
PKG_INSTALL_CMD = "sudo apt-get --assume-yes install %s"
|
|
APT_CHECK_CMD = "LANG=en_US.UTF-8 apt-cache policy %s"
|
|
_INSTALLED_RE = re.compile(r"(.*\s*Installed:)(?P<installed_ver>.*\s?)")
|
|
_CANDIDATE_RE = re.compile(r"(.*\s*Candidate:)(?P<candidate_ver>.*\s?)")
|
|
|
|
|
|
def CheckCmdOutput(cmd, print_cmd=True, **kwargs):
|
|
"""Helper function to run subprocess.check_output.
|
|
|
|
This function will return the command output for parsing the result and will
|
|
raise Error if command return code was non-zero.
|
|
|
|
Args:
|
|
cmd: String, the cmd string.
|
|
print_cmd: True to print cmd to stdout.
|
|
kwargs: Other option args to subprocess.
|
|
|
|
Returns:
|
|
Return cmd output as a byte string.
|
|
If the return code was non-zero it raises a CalledProcessError.
|
|
"""
|
|
if print_cmd:
|
|
print("Run command: %s" % cmd)
|
|
|
|
logger.debug("Run command: %s", cmd)
|
|
return utils.CheckOutput(cmd, **kwargs)
|
|
|
|
|
|
def InstallPackage(pkg):
|
|
"""Install package.
|
|
|
|
Args:
|
|
pkg: String, the name of package.
|
|
|
|
Raises:
|
|
PackageInstallError: package is not installed.
|
|
"""
|
|
try:
|
|
print(CheckCmdOutput(PKG_INSTALL_CMD % pkg,
|
|
shell=True,
|
|
stderr=subprocess.STDOUT))
|
|
except subprocess.CalledProcessError as cpe:
|
|
logger.error("Package install for %s failed: %s", pkg, cpe.output)
|
|
raise errors.PackageInstallError(
|
|
"Could not install package [" + pkg + "], :" + str(cpe.output))
|
|
|
|
if not PackageInstalled(pkg, compare_version=False):
|
|
raise errors.PackageInstallError(
|
|
"Package was not detected as installed after installation [" +
|
|
pkg + "]")
|
|
|
|
|
|
def PackageInstalled(pkg_name, compare_version=True):
|
|
"""Check if the package is installed or not.
|
|
|
|
This method will validate that the specified package is installed
|
|
(via apt cache policy) and check if the installed version is up-to-date.
|
|
|
|
Args:
|
|
pkg_name: String, the package name.
|
|
compare_version: Boolean, True to compare version.
|
|
|
|
Returns:
|
|
True if package is installed.and False if not installed or
|
|
the pre-installed package is not the same version as the repo candidate
|
|
version.
|
|
|
|
Raises:
|
|
UnableToLocatePkgOnRepositoryError: Unable to locate package on repository.
|
|
"""
|
|
try:
|
|
pkg_info = CheckCmdOutput(
|
|
APT_CHECK_CMD % pkg_name,
|
|
print_cmd=False,
|
|
shell=True,
|
|
stderr=subprocess.STDOUT)
|
|
|
|
logger.debug("Check package install status")
|
|
logger.debug(pkg_info)
|
|
except subprocess.CalledProcessError as error:
|
|
# Unable locate package name on repository.
|
|
raise errors.UnableToLocatePkgOnRepositoryError(
|
|
"Could not find package [" + pkg_name + "] on repository, :" +
|
|
str(error.output) + ", have you forgotten to run 'apt update'?")
|
|
|
|
installed_ver = None
|
|
candidate_ver = None
|
|
for line in pkg_info.splitlines():
|
|
match = _INSTALLED_RE.match(line)
|
|
if match:
|
|
installed_ver = match.group("installed_ver").strip()
|
|
continue
|
|
match = _CANDIDATE_RE.match(line)
|
|
if match:
|
|
candidate_ver = match.group("candidate_ver").strip()
|
|
continue
|
|
|
|
# package isn't installed
|
|
if installed_ver == "(none)":
|
|
logger.debug("Package is not installed, status is (none)")
|
|
return False
|
|
# couldn't find the package
|
|
if not (installed_ver and candidate_ver):
|
|
logger.debug("Version info not found [installed: %s ,candidate: %s]",
|
|
installed_ver,
|
|
candidate_ver)
|
|
return False
|
|
# TODO(148116924):Setup process should ask user to update package if the
|
|
# minimax required version is specified.
|
|
if compare_version and installed_ver != candidate_ver:
|
|
logger.warning("Package %s version at %s, expected %s",
|
|
pkg_name, installed_ver, candidate_ver)
|
|
return True
|