diff options
Diffstat (limited to 'tc_enter_chroot.py')
| -rwxr-xr-x | tc_enter_chroot.py | 580 |
1 files changed, 310 insertions, 270 deletions
diff --git a/tc_enter_chroot.py b/tc_enter_chroot.py index 3a7538ad..93b3be2d 100755 --- a/tc_enter_chroot.py +++ b/tc_enter_chroot.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -*- coding: utf-8 -*- -# Copyright 2010 The Chromium OS Authors. All rights reserved. +# Copyright 2010 The ChromiumOS Authors # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. @@ -9,9 +9,8 @@ This script enters the chroot with mounted sources. """ -from __future__ import print_function -__author__ = 'asharif@google.com (Ahmad Sharif)' +__author__ = "asharif@google.com (Ahmad Sharif)" import argparse import getpass @@ -25,285 +24,326 @@ from cros_utils import misc class MountPoint(object): - """Mount point class""" - - def __init__(self, external_dir, mount_dir, owner, options=None): - self.external_dir = os.path.realpath(external_dir) - self.mount_dir = os.path.realpath(mount_dir) - self.owner = owner - self.options = options - - def CreateAndOwnDir(self, dir_name): - retv = 0 - if not os.path.exists(dir_name): - command = 'mkdir -p ' + dir_name - command += ' || sudo mkdir -p ' + dir_name - retv = command_executer.GetCommandExecuter().RunCommand(command) - if retv != 0: - return retv - pw = pwd.getpwnam(self.owner) - if os.stat(dir_name).st_uid != pw.pw_uid: - command = 'sudo chown -f ' + self.owner + ' ' + dir_name - retv = command_executer.GetCommandExecuter().RunCommand(command) - return retv - - def DoMount(self): - ce = command_executer.GetCommandExecuter() - mount_signature = '%s on %s' % (self.external_dir, self.mount_dir) - command = 'mount' - retv, out, _ = ce.RunCommandWOutput(command) - if mount_signature not in out: - retv = self.CreateAndOwnDir(self.mount_dir) - logger.GetLogger().LogFatalIf(retv, 'Cannot create mount_dir!') - retv = self.CreateAndOwnDir(self.external_dir) - logger.GetLogger().LogFatalIf(retv, 'Cannot create external_dir!') - retv = self.MountDir() - logger.GetLogger().LogFatalIf(retv, 'Cannot mount!') - return retv - else: - return 0 - - def UnMount(self): - ce = command_executer.GetCommandExecuter() - return ce.RunCommand('sudo umount %s' % self.mount_dir) - - def MountDir(self): - command = 'sudo mount --bind ' + self.external_dir + ' ' + self.mount_dir - if self.options == 'ro': - command += ' && sudo mount --bind -oremount,ro ' + self.mount_dir - retv = command_executer.GetCommandExecuter().RunCommand(command) - return retv - - def __str__(self): - ret = '' - ret += self.external_dir + '\n' - ret += self.mount_dir + '\n' - if self.owner: - ret += self.owner + '\n' - if self.options: - ret += self.options + '\n' - return ret + """Mount point class""" + + def __init__(self, external_dir, mount_dir, owner, options=None): + self.external_dir = os.path.realpath(external_dir) + self.mount_dir = os.path.realpath(mount_dir) + self.owner = owner + self.options = options + + def CreateAndOwnDir(self, dir_name): + retv = 0 + if not os.path.exists(dir_name): + command = "mkdir -p " + dir_name + command += " || sudo mkdir -p " + dir_name + retv = command_executer.GetCommandExecuter().RunCommand(command) + if retv != 0: + return retv + pw = pwd.getpwnam(self.owner) + if os.stat(dir_name).st_uid != pw.pw_uid: + command = "sudo chown -f " + self.owner + " " + dir_name + retv = command_executer.GetCommandExecuter().RunCommand(command) + return retv + + def DoMount(self): + ce = command_executer.GetCommandExecuter() + mount_signature = "%s on %s" % (self.external_dir, self.mount_dir) + command = "mount" + retv, out, _ = ce.RunCommandWOutput(command) + if mount_signature not in out: + retv = self.CreateAndOwnDir(self.mount_dir) + logger.GetLogger().LogFatalIf(retv, "Cannot create mount_dir!") + retv = self.CreateAndOwnDir(self.external_dir) + logger.GetLogger().LogFatalIf(retv, "Cannot create external_dir!") + retv = self.MountDir() + logger.GetLogger().LogFatalIf(retv, "Cannot mount!") + return retv + else: + return 0 + + def UnMount(self): + ce = command_executer.GetCommandExecuter() + return ce.RunCommand("sudo umount %s" % self.mount_dir) + + def MountDir(self): + command = ( + "sudo mount --bind " + self.external_dir + " " + self.mount_dir + ) + if self.options == "ro": + command += " && sudo mount --bind -oremount,ro " + self.mount_dir + retv = command_executer.GetCommandExecuter().RunCommand(command) + return retv + + def __str__(self): + ret = "" + ret += self.external_dir + "\n" + ret += self.mount_dir + "\n" + if self.owner: + ret += self.owner + "\n" + if self.options: + ret += self.options + "\n" + return ret def Main(argv, return_output=False): - """The main function.""" - - parser = argparse.ArgumentParser() - parser.add_argument( - '-c', - '--chromeos_root', - dest='chromeos_root', - default='../..', - help='ChromeOS root checkout directory.') - parser.add_argument( - '-t', - '--toolchain_root', - dest='toolchain_root', - help='Toolchain root directory.') - parser.add_argument( - '-o', '--output', dest='output', help='Toolchain output directory') - parser.add_argument( - '--sudo', - dest='sudo', - action='store_true', - default=False, - help='Run the command with sudo.') - parser.add_argument( - '-r', - '--third_party', - dest='third_party', - help='The third_party directory to mount.') - parser.add_argument( - '-m', - '--other_mounts', - dest='other_mounts', - help='Other mount points in the form: ' - 'dir:mounted_dir:options') - parser.add_argument( - '-s', - '--mount-scripts-only', - dest='mount_scripts_only', - action='store_true', - default=False, - help='Mount only the scripts dir, and not the sources.') - parser.add_argument( - 'passthrough_argv', - nargs='*', - help='Command to be executed inside the chroot.') - - options = parser.parse_args(argv) - - chromeos_root = options.chromeos_root - - chromeos_root = os.path.expanduser(chromeos_root) - if options.toolchain_root: - options.toolchain_root = os.path.expanduser(options.toolchain_root) - - chromeos_root = os.path.abspath(chromeos_root) - - tc_dirs = [] - if options.toolchain_root is None or options.mount_scripts_only: - m = 'toolchain_root not specified. Will not mount toolchain dirs.' - logger.GetLogger().LogWarning(m) - else: - tc_dirs = [ - options.toolchain_root + '/google_vendor_src_branch/gcc', - options.toolchain_root + '/google_vendor_src_branch/binutils' - ] - - for tc_dir in tc_dirs: - if not os.path.exists(tc_dir): - logger.GetLogger().LogError('toolchain path ' + tc_dir + - ' does not exist!') - parser.print_help() - sys.exit(1) - - if not os.path.exists(chromeos_root): - logger.GetLogger().LogError('chromeos_root ' + options.chromeos_root + - ' does not exist!') - parser.print_help() - sys.exit(1) - - if not os.path.exists(chromeos_root + '/src/scripts/build_packages'): - logger.GetLogger().LogError(options.chromeos_root + - '/src/scripts/build_packages' - ' not found!') - parser.print_help() - sys.exit(1) - - version_dir = os.path.realpath(os.path.expanduser(os.path.dirname(__file__))) - - mounted_tc_root = '/usr/local/toolchain_root' - full_mounted_tc_root = chromeos_root + '/chroot/' + mounted_tc_root - full_mounted_tc_root = os.path.abspath(full_mounted_tc_root) - - mount_points = [] - for tc_dir in tc_dirs: - last_dir = misc.GetRoot(tc_dir)[1] - mount_point = MountPoint(tc_dir, full_mounted_tc_root + '/' + last_dir, - getpass.getuser(), 'ro') + """The main function.""" + + parser = argparse.ArgumentParser() + parser.add_argument( + "-c", + "--chromeos_root", + dest="chromeos_root", + default="../..", + help="ChromeOS root checkout directory.", + ) + parser.add_argument( + "-t", + "--toolchain_root", + dest="toolchain_root", + help="Toolchain root directory.", + ) + parser.add_argument( + "-o", "--output", dest="output", help="Toolchain output directory" + ) + parser.add_argument( + "--sudo", + dest="sudo", + action="store_true", + default=False, + help="Run the command with sudo.", + ) + parser.add_argument( + "-r", + "--third_party", + dest="third_party", + help="The third_party directory to mount.", + ) + parser.add_argument( + "-m", + "--other_mounts", + dest="other_mounts", + help="Other mount points in the form: " "dir:mounted_dir:options", + ) + parser.add_argument( + "-s", + "--mount-scripts-only", + dest="mount_scripts_only", + action="store_true", + default=False, + help="Mount only the scripts dir, and not the sources.", + ) + parser.add_argument( + "passthrough_argv", + nargs="*", + help="Command to be executed inside the chroot.", + ) + + options = parser.parse_args(argv) + + chromeos_root = options.chromeos_root + + chromeos_root = os.path.expanduser(chromeos_root) + if options.toolchain_root: + options.toolchain_root = os.path.expanduser(options.toolchain_root) + + chromeos_root = os.path.abspath(chromeos_root) + + tc_dirs = [] + if options.toolchain_root is None or options.mount_scripts_only: + m = "toolchain_root not specified. Will not mount toolchain dirs." + logger.GetLogger().LogWarning(m) + else: + tc_dirs = [ + options.toolchain_root + "/google_vendor_src_branch/gcc", + options.toolchain_root + "/google_vendor_src_branch/binutils", + ] + + for tc_dir in tc_dirs: + if not os.path.exists(tc_dir): + logger.GetLogger().LogError( + "toolchain path " + tc_dir + " does not exist!" + ) + parser.print_help() + sys.exit(1) + + if not os.path.exists(chromeos_root): + logger.GetLogger().LogError( + "chromeos_root " + options.chromeos_root + " does not exist!" + ) + parser.print_help() + sys.exit(1) + + if not os.path.exists(chromeos_root + "/src/scripts/build_packages"): + logger.GetLogger().LogError( + options.chromeos_root + "/src/scripts/build_packages" " not found!" + ) + parser.print_help() + sys.exit(1) + + version_dir = os.path.realpath( + os.path.expanduser(os.path.dirname(__file__)) + ) + + mounted_tc_root = "/usr/local/toolchain_root" + full_mounted_tc_root = chromeos_root + "/chroot/" + mounted_tc_root + full_mounted_tc_root = os.path.abspath(full_mounted_tc_root) + + mount_points = [] + for tc_dir in tc_dirs: + last_dir = misc.GetRoot(tc_dir)[1] + mount_point = MountPoint( + tc_dir, + full_mounted_tc_root + "/" + last_dir, + getpass.getuser(), + "ro", + ) + mount_points.append(mount_point) + + # Add the third_party mount point if it exists + if options.third_party: + third_party_dir = options.third_party + logger.GetLogger().LogFatalIf( + not os.path.isdir(third_party_dir), + "--third_party option is not a valid dir.", + ) + else: + third_party_dir = os.path.abspath( + "%s/../../../third_party" % os.path.dirname(__file__) + ) + + if os.path.isdir(third_party_dir): + mount_point = MountPoint( + third_party_dir, + ( + "%s/%s" + % (full_mounted_tc_root, os.path.basename(third_party_dir)) + ), + getpass.getuser(), + ) + mount_points.append(mount_point) + + output = options.output + if output is None and options.toolchain_root: + # Mount the output directory at /usr/local/toolchain_root/output + output = options.toolchain_root + "/output" + + if output: + mount_points.append( + MountPoint( + output, full_mounted_tc_root + "/output", getpass.getuser() + ) + ) + + # Mount the other mount points + mount_points += CreateMountPointsFromString( + options.other_mounts, chromeos_root + "/chroot/" + ) + + last_dir = misc.GetRoot(version_dir)[1] + + # Mount the version dir (v14) at /usr/local/toolchain_root/v14 + mount_point = MountPoint( + version_dir, full_mounted_tc_root + "/" + last_dir, getpass.getuser() + ) mount_points.append(mount_point) - # Add the third_party mount point if it exists - if options.third_party: - third_party_dir = options.third_party - logger.GetLogger().LogFatalIf(not os.path.isdir(third_party_dir), - '--third_party option is not a valid dir.') - else: - third_party_dir = os.path.abspath( - '%s/../../../third_party' % os.path.dirname(__file__)) + for mount_point in mount_points: + retv = mount_point.DoMount() + if retv != 0: + return retv - if os.path.isdir(third_party_dir): - mount_point = MountPoint( - third_party_dir, - ('%s/%s' % (full_mounted_tc_root, os.path.basename(third_party_dir))), - getpass.getuser()) - mount_points.append(mount_point) + # Finally, create the symlink to build-gcc. + command = "sudo chown " + getpass.getuser() + " " + full_mounted_tc_root + retv = command_executer.GetCommandExecuter().RunCommand(command) - output = options.output - if output is None and options.toolchain_root: - # Mount the output directory at /usr/local/toolchain_root/output - output = options.toolchain_root + '/output' - - if output: - mount_points.append( - MountPoint(output, full_mounted_tc_root + '/output', getpass.getuser())) - - # Mount the other mount points - mount_points += CreateMountPointsFromString(options.other_mounts, - chromeos_root + '/chroot/') - - last_dir = misc.GetRoot(version_dir)[1] - - # Mount the version dir (v14) at /usr/local/toolchain_root/v14 - mount_point = MountPoint(version_dir, full_mounted_tc_root + '/' + last_dir, - getpass.getuser()) - mount_points.append(mount_point) - - for mount_point in mount_points: - retv = mount_point.DoMount() - if retv != 0: - return retv - - # Finally, create the symlink to build-gcc. - command = 'sudo chown ' + getpass.getuser() + ' ' + full_mounted_tc_root - retv = command_executer.GetCommandExecuter().RunCommand(command) - - try: - CreateSymlink(last_dir + '/build-gcc', full_mounted_tc_root + '/build-gcc') - CreateSymlink(last_dir + '/build-binutils', - full_mounted_tc_root + '/build-binutils') - except Exception as e: - logger.GetLogger().LogError(str(e)) - - # Now call cros_sdk --enter with the rest of the arguments. - command = 'cd %s/src/scripts && cros_sdk --enter' % chromeos_root - - if len(options.passthrough_argv) > 1: - inner_command = ' '.join(options.passthrough_argv[1:]) - inner_command = inner_command.strip() - if inner_command.startswith('-- '): - inner_command = inner_command[3:] - command_file = 'tc_enter_chroot.cmd' - command_file_path = chromeos_root + '/src/scripts/' + command_file - retv = command_executer.GetCommandExecuter().RunCommand('sudo rm -f ' + - command_file_path) - if retv != 0: - return retv - with open(command_file_path, 'w', encoding='utf-8') as f: - f.write(inner_command) - logger.GetLogger().LogCmd(inner_command) - retv = command_executer.GetCommandExecuter().RunCommand('chmod +x ' + - command_file_path) - if retv != 0: - return retv - - if options.sudo: - command += ' sudo ./' + command_file + try: + CreateSymlink( + last_dir + "/build-gcc", full_mounted_tc_root + "/build-gcc" + ) + CreateSymlink( + last_dir + "/build-binutils", + full_mounted_tc_root + "/build-binutils", + ) + except Exception as e: + logger.GetLogger().LogError(str(e)) + + # Now call cros_sdk --enter with the rest of the arguments. + command = "cd %s/src/scripts && cros_sdk --enter" % chromeos_root + + if len(options.passthrough_argv) > 1: + inner_command = " ".join(options.passthrough_argv[1:]) + inner_command = inner_command.strip() + if inner_command.startswith("-- "): + inner_command = inner_command[3:] + command_file = "tc_enter_chroot.cmd" + command_file_path = chromeos_root + "/src/scripts/" + command_file + retv = command_executer.GetCommandExecuter().RunCommand( + "sudo rm -f " + command_file_path + ) + if retv != 0: + return retv + with open(command_file_path, "w", encoding="utf-8") as f: + f.write(inner_command) + logger.GetLogger().LogCmd(inner_command) + retv = command_executer.GetCommandExecuter().RunCommand( + "chmod +x " + command_file_path + ) + if retv != 0: + return retv + + if options.sudo: + command += " sudo ./" + command_file + else: + command += " ./" + command_file + retv = command_executer.GetCommandExecuter().RunCommandGeneric( + command, return_output + ) + return retv else: - command += ' ./' + command_file - retv = command_executer.GetCommandExecuter().RunCommandGeneric( - command, return_output) - return retv - else: - os.chdir('%s/src/scripts' % chromeos_root) - ce = command_executer.GetCommandExecuter() - _, out, _ = ce.RunCommandWOutput('which cros_sdk') - cros_sdk_binary = out.split()[0] - return os.execv(cros_sdk_binary, ['', '--enter']) + os.chdir("%s/src/scripts" % chromeos_root) + ce = command_executer.GetCommandExecuter() + _, out, _ = ce.RunCommandWOutput("which cros_sdk") + cros_sdk_binary = out.split()[0] + return os.execv(cros_sdk_binary, ["", "--enter"]) def CreateMountPointsFromString(mount_strings, chroot_dir): - # String has options in the form dir:mount:options - mount_points = [] - if not mount_strings: + # String has options in the form dir:mount:options + mount_points = [] + if not mount_strings: + return mount_points + mount_list = mount_strings.split() + for mount_string in mount_list: + mount_values = mount_string.split(":") + external_dir = mount_values[0] + mount_dir = mount_values[1] + if len(mount_values) > 2: + options = mount_values[2] + else: + options = None + mount_point = MountPoint( + external_dir, + chroot_dir + "/" + mount_dir, + getpass.getuser(), + options, + ) + mount_points.append(mount_point) return mount_points - mount_list = mount_strings.split() - for mount_string in mount_list: - mount_values = mount_string.split(':') - external_dir = mount_values[0] - mount_dir = mount_values[1] - if len(mount_values) > 2: - options = mount_values[2] - else: - options = None - mount_point = MountPoint(external_dir, chroot_dir + '/' + mount_dir, - getpass.getuser(), options) - mount_points.append(mount_point) - return mount_points def CreateSymlink(target, link_name): - logger.GetLogger().LogFatalIf( - target.startswith('/'), "Can't create symlink to absolute path!") - real_from_file = misc.GetRoot(link_name)[0] + '/' + target - if os.path.realpath(real_from_file) != os.path.realpath(link_name): - if os.path.exists(link_name): - command = 'rm -rf ' + link_name - command_executer.GetCommandExecuter().RunCommand(command) - os.symlink(target, link_name) - - -if __name__ == '__main__': - retval = Main(sys.argv) - sys.exit(retval) + logger.GetLogger().LogFatalIf( + target.startswith("/"), "Can't create symlink to absolute path!" + ) + real_from_file = misc.GetRoot(link_name)[0] + "/" + target + if os.path.realpath(real_from_file) != os.path.realpath(link_name): + if os.path.exists(link_name): + command = "rm -rf " + link_name + command_executer.GetCommandExecuter().RunCommand(command) + os.symlink(target, link_name) + + +if __name__ == "__main__": + retval = Main(sys.argv) + sys.exit(retval) |