Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 266 insertions, 0 deletions

diff --git a/third_party/libwebrtc/build/fuchsia/device_target.py b/third_party/libwebrtc/build/fuchsia/device_target.py
new file mode 100644
index 0000000000..6905a623dd
--- /dev/null
+++ b/third_party/libwebrtc/build/fuchsia/device_target.py
@@ -0,0 +1,266 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Implements commands for running and interacting with Fuchsia on devices."""
+
+import boot_data
+import logging
+import os
+import pkg_repo
+import re
+import subprocess
+import target
+import time
+
+from common import EnsurePathExists, GetHostToolPathFromPlatform
+
+# The maximum times to attempt mDNS resolution when connecting to a freshly
+# booted Fuchsia instance before aborting.
+BOOT_DISCOVERY_ATTEMPTS = 30
+
+# Number of failed connection attempts before redirecting system logs to stdout.
+CONNECT_RETRY_COUNT_BEFORE_LOGGING = 10
+
+# Number of seconds between each device discovery.
+BOOT_DISCOVERY_DELAY_SECS = 4
+
+# Time between a reboot command is issued and when connection attempts from the
+# host begin.
+_REBOOT_SLEEP_PERIOD = 20
+
+
+def GetTargetType():
+  return DeviceTarget
+
+
+class DeviceTarget(target.Target):
+  """Prepares a device to be used as a deployment target. Depending on the
+  command line parameters, it automatically handling a number of preparatory
+  steps relating to address resolution.
+
+  If |_node_name| is unset:
+    If there is one running device, use it for deployment and execution.
+
+    If there are more than one running devices, then abort and instruct the
+    user to re-run the command with |_node_name|
+
+  If |_node_name| is set:
+    If there is a running device with a matching nodename, then it is used
+    for deployment and execution.
+
+  If |_host| is set:
+    Deploy to a device at the host IP address as-is."""
+
+  def __init__(self,
+               out_dir,
+               target_cpu,
+               host=None,
+               node_name=None,
+               port=None,
+               ssh_config=None,
+               fuchsia_out_dir=None,
+               os_check='update',
+               system_log_file=None):
+    """out_dir: The directory which will contain the files that are
+                   generated to support the deployment.
+    target_cpu: The CPU architecture of the deployment target. Can be
+                "x64" or "arm64".
+    host: The address of the deployment target device.
+    node_name: The node name of the deployment target device.
+    port: The port of the SSH service on the deployment target device.
+    ssh_config: The path to SSH configuration data.
+    fuchsia_out_dir: The path to a Fuchsia build output directory, for
+                     deployments to devices paved with local Fuchsia builds.
+    os_check: If 'check', the target's SDK version must match.
+              If 'update', the target will be repaved if the SDK versions
+                  mismatch.
+              If 'ignore', the target's SDK version is ignored."""
+
+    super(DeviceTarget, self).__init__(out_dir, target_cpu)
+
+    self._system_log_file = system_log_file
+    self._host = host
+    self._port = port
+    self._fuchsia_out_dir = None
+    self._node_name = node_name
+    self._os_check = os_check
+    self._pkg_repo = None
+
+    if self._host and self._node_name:
+      raise Exception('Only one of "--host" or "--name" can be specified.')
+
+    if fuchsia_out_dir:
+      if ssh_config:
+        raise Exception('Only one of "--fuchsia-out-dir" or "--ssh_config" can '
+                        'be specified.')
+
+      self._fuchsia_out_dir = os.path.expanduser(fuchsia_out_dir)
+      # Use SSH keys from the Fuchsia output directory.
+      self._ssh_config_path = os.path.join(self._fuchsia_out_dir, 'ssh-keys',
+                                           'ssh_config')
+      self._os_check = 'ignore'
+
+    elif ssh_config:
+      # Use the SSH config provided via the commandline.
+      self._ssh_config_path = os.path.expanduser(ssh_config)
+
+    else:
+      # Default to using an automatically generated SSH config and keys.
+      boot_data.ProvisionSSH()
+      self._ssh_config_path = boot_data.GetSSHConfigPath()
+
+  @staticmethod
+  def CreateFromArgs(args):
+    return DeviceTarget(args.out_dir, args.target_cpu, args.host,
+                        args.node_name, args.port, args.ssh_config,
+                        args.fuchsia_out_dir, args.os_check,
+                        args.system_log_file)
+
+  @staticmethod
+  def RegisterArgs(arg_parser):
+    device_args = arg_parser.add_argument_group(
+        'device', 'External device deployment arguments')
+    device_args.add_argument('--host',
+                             help='The IP of the target device. Optional.')
+    device_args.add_argument('--node-name',
+                             help='The node-name of the device to boot or '
+                             'deploy to. Optional, will use the first '
+                             'discovered device if omitted.')
+    device_args.add_argument('--port',
+                             '-p',
+                             type=int,
+                             default=None,
+                             help='The port of the SSH service running on the '
+                             'device. Optional.')
+    device_args.add_argument('--ssh-config',
+                             '-F',
+                             help='The path to the SSH configuration used for '
+                             'connecting to the target device.')
+    device_args.add_argument(
+        '--os-check',
+        choices=['check', 'update', 'ignore'],
+        default='update',
+        help="Sets the OS version enforcement policy. If 'check', then the "
+        "deployment process will halt if the target\'s version doesn\'t "
+        "match. If 'update', then the target device will automatically "
+        "be repaved. If 'ignore', then the OS version won\'t be checked.")
+
+  def _ProvisionDeviceIfNecessary(self):
+    if self._Discover():
+      self._WaitUntilReady()
+    else:
+      raise Exception('Could not find device. If the device is connected '
+                      'to the host remotely, make sure that --host flag is '
+                      'set and that remote serving is set up.')
+
+  def _Discover(self):
+    """Queries mDNS for the IP address of a booted Fuchsia instance whose name
+    matches |_node_name| on the local area network. If |_node_name| isn't
+    specified, and there is only one device on the network, then returns the
+    IP address of that advice.
+
+    Sets |_host_name| and returns True if the device was found,
+    or waits up to |timeout| seconds and returns False if the device couldn't
+    be found."""
+
+    dev_finder_path = GetHostToolPathFromPlatform('device-finder')
+
+    if self._node_name:
+      command = [
+          dev_finder_path,
+          'resolve',
+          '-device-limit',
+          '1',  # Exit early as soon as a host is found.
+          self._node_name
+      ]
+      proc = subprocess.Popen(command,
+                              stdout=subprocess.PIPE,
+                              stderr=open(os.devnull, 'w'))
+    else:
+      proc = self.RunFFXCommand(['target', 'list', '-f', 'simple'],
+                                stdout=subprocess.PIPE,
+                                stderr=open(os.devnull, 'w'))
+
+    output = set(proc.communicate()[0].strip().split('\n'))
+    if proc.returncode != 0:
+      return False
+
+    if self._node_name:
+      # Handle the result of "device-finder resolve".
+      self._host = output.pop().strip()
+    else:
+      name_host_pairs = [x.strip().split(' ') for x in output]
+
+      if len(name_host_pairs) > 1:
+        logging.info('More than one device was discovered on the network. '
+                     'Use --node-name <name> to specify the device to use.')
+        logging.info('List of devices:')
+        logging.info(output)
+        raise Exception('Ambiguous target device specification.')
+      assert len(name_host_pairs) == 1
+      # Check if device has both address and name.
+      if len(name_host_pairs[0]) < 2:
+        return False
+      self._host, self._node_name = name_host_pairs[0]
+
+    logging.info('Found device "%s" at address %s.' % (self._node_name,
+                                                       self._host))
+
+    return True
+
+  def Start(self):
+    if self._host:
+      self._WaitUntilReady()
+    else:
+      self._ProvisionDeviceIfNecessary()
+
+  def GetPkgRepo(self):
+    if not self._pkg_repo:
+      if self._fuchsia_out_dir:
+        # Deploy to an already-booted device running a local Fuchsia build.
+        self._pkg_repo = pkg_repo.ExternalPkgRepo(
+            os.path.join(self._fuchsia_out_dir, 'amber-files'))
+      else:
+        # Create an ephemeral package repository, then start both "pm serve" as
+        # well as the bootserver.
+        self._pkg_repo = pkg_repo.ManagedPkgRepo(self)
+
+    return self._pkg_repo
+
+  def _ParseNodename(self, output):
+    # Parse the nodename from bootserver stdout.
+    m = re.search(r'.*Proceeding with nodename (?P<nodename>.*)$', output,
+                  re.MULTILINE)
+    if not m:
+      raise Exception('Couldn\'t parse nodename from bootserver output.')
+    self._node_name = m.groupdict()['nodename']
+    logging.info('Booted device "%s".' % self._node_name)
+
+    # Repeatedly search for a device for |BOOT_DISCOVERY_ATTEMPT|
+    # number of attempts. If a device isn't found, wait
+    # |BOOT_DISCOVERY_DELAY_SECS| before searching again.
+    logging.info('Waiting for device to join network.')
+    for _ in xrange(BOOT_DISCOVERY_ATTEMPTS):
+      if self._Discover():
+        break
+      time.sleep(BOOT_DISCOVERY_DELAY_SECS)
+
+    if not self._host:
+      raise Exception('Device %s couldn\'t be discovered via mDNS.' %
+                      self._node_name)
+
+    self._WaitUntilReady();
+
+  def _GetEndpoint(self):
+    return (self._host, self._port)
+
+  def _GetSshConfigPath(self):
+    return self._ssh_config_path
+
+  def Restart(self):
+    """Restart the device."""
+
+    self.RunCommandPiped('dm reboot')
+    time.sleep(_REBOOT_SLEEP_PERIOD)
+    self.Start()