Copy Linux me2me script to output dir for GN builds

remoting/host/linux/linux_me2me_host.py

 #!/usr/bin/python
 # Copyright (c) 2012 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.
 
 # Virtual Me2Me implementation.  This script runs and manages the processes
 # required for a Virtual Me2Me desktop, which are: X server, X desktop
 # session, and Host process.
 # This script is intended to run continuously as a background daemon
 # process, running under an ordinary (non-root) user account.
@@ skipping 37 matching lines @@
 # defaults can be overridden in ~/.profile.
 DEFAULT_SIZES = "1600x1200,3840x2560"
 
 # If RANDR is not available, use a smaller default size. Only a single
 # resolution is supported in this case.
 DEFAULT_SIZE_NO_RANDR = "1600x1200"
 
 SCRIPT_PATH = os.path.abspath(sys.argv[0])
 SCRIPT_DIR = os.path.dirname(SCRIPT_PATH)
 
-IS_INSTALLED = (os.path.basename(sys.argv[0]) != 'linux_me2me_host.py')
-
-if IS_INSTALLED:
+if "me2me_host" in os.path.basename(sys.argv[0]):
+  # Script is being run from a Chromium checkout.
+  HOST_BINARY_NAME = "remoting_me2me_host"
+else:
+  # Script is installed.
   HOST_BINARY_NAME = "chrome-remote-desktop-host"
-else:
-  HOST_BINARY_NAME = "remoting_me2me_host"
 
 CHROME_REMOTING_GROUP_NAME = "chrome-remote-desktop"
 
 HOME_DIR = os.environ["HOME"]
 CONFIG_DIR = os.path.join(HOME_DIR, ".config/chrome-remote-desktop")
 SESSION_FILE_PATH = os.path.join(HOME_DIR, ".chrome-remote-desktop-session")
 SYSTEM_SESSION_FILE_PATH = "/etc/chrome-remote-desktop-session"
 
 X_LOCK_FILE_TEMPLATE = "/tmp/.X%d-lock"
 FIRST_X_DISPLAY_NUMBER = 20
@@ skipping 550 matching lines @@
         # choose it explicitly.
         return [session_wrapper, "/usr/bin/gnome-session --session=ubuntu-2d"]
       else:
         # Use the session wrapper by itself, and let the system choose a
         # session.
         return [session_wrapper]
   return None
 
 
 def locate_executable(exe_name):
-  if IS_INSTALLED:
-    # If the script is running from its installed location, search the host
-    # binary only in the same directory.
-    paths_to_try = [ SCRIPT_DIR ]
-  else:
-    paths_to_try = map(lambda p: os.path.join(SCRIPT_DIR, p),
-                       [".",
-                        "../../../out/Debug",
-                        "../../../out/Default",
-                        "../../../out/Release"])
-  for path in paths_to_try:
-    exe_path = os.path.join(path, exe_name)
-    if os.path.exists(exe_path):
-      return exe_path
+  exe_path = os.path.join(SCRIPT_DIR, exe_name)
+  if os.path.exists(exe_path):
+    return exe_path
 
-  raise Exception("Could not locate executable '%s'" % exe_name)
+  raise Exception("Executable not found at '%s'" % exe_path)
 
 
 class ParentProcessLogger(object):
   """Redirects logs to the parent process, until the host is ready or quits.
 
   This class creates a pipe to allow logging from the daemon process to be
   copied to the parent process. The daemon process adds a log-handler that
   directs logging output to the pipe. The parent process reads from this pipe
   until and writes the content to stderr.  When the pipe is no longer needed
   (for example, the host signals successful launch or permanent failure), the
@@ skipping 739 matching lines @@
         else:
           logging.info("Host exited with status %s." % os.WEXITSTATUS(status))
       elif os.WIFSIGNALED(status):
         logging.info("Host terminated by signal %s." % os.WTERMSIG(status))
 
 
 if __name__ == "__main__":
   logging.basicConfig(level=logging.DEBUG,
                       format="%(asctime)s:%(levelname)s:%(message)s")
   sys.exit(main())