Move the apptest runner and parts of mopy to the public SDK.

mojo/tools/mopy/paths.py

-# Copyright 2014 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.
-
-import os
-
-from .config import Config
-from .gn import BuildDirectoryForConfig
-
-class Paths(object):
-  """Provides commonly used paths"""
-
-  def __init__(self, config=None, build_dir=None):
-    """Specify either a config or a build_dir to generate paths to binary
-    artifacts."""
-    self.src_root = os.path.abspath(os.path.join(__file__,
-      os.pardir, os.pardir, os.pardir, os.pardir))
-    self.mojo_dir = os.path.join(self.src_root, "mojo")
-
-    if config:
-      self.build_dir = BuildDirectoryForConfig(config, self.src_root)
-    elif build_dir is not None:
-      self.build_dir = os.path.abspath(build_dir)
-    else:
-      self.build_dir = None
-
-    if self.build_dir is not None:
-      self.mojo_launcher_path = os.path.join(self.build_dir, "mojo_launcher")
-      self.mojo_shell_path = os.path.join(self.build_dir, "mojo_shell")
-      # TODO(vtl): Use the host OS here, since |config| may not be available.
-      # In any case, if the target is Windows, but the host isn't, using
-      # |os.path| isn't correct....
-      if Config.GetHostOS() == Config.OS_WINDOWS:
-        self.mojo_launcher_path += ".exe"
-        self.mojo_shell_path += ".exe"
-    else:
-      self.mojo_launcher_path = None
-      self.mojo_shell_path = None
-
-  def RelPath(self, path):
-    """Returns the given path, relative to the current directory."""
-    return os.path.relpath(path)
-
-  def SrcRelPath(self, path):
-    """Returns the given path, relative to self.src_root."""
-    return os.path.relpath(path, self.src_root)
-
-  def FileFromUrl(self, url):
-    """Given an app URL (<scheme>:<appname>), return 'build_dir/appname.mojo'.
-    If self.build_dir is None, just return appname.mojo
-    """
-    (_, name) = url.split(':')
-    if self.build_dir:
-      return os.path.join(self.build_dir, name + '.mojo')
-    return name + '.mojo'
-
-  @staticmethod
-  def IsValidAppUrl(url):
-    """Returns False if url is malformed, True otherwise."""
-    try:
-      return len(url.split(':')) == 2
-    except ValueError:
-      return False