| #!/usr/bin/env python |
| # Copyright (c) 2011 Google Inc. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """These functions are executed via gyp-sun-tool when using the Makefile |
| generator.""" |
| |
| import fcntl |
| import os |
| import struct |
| import subprocess |
| import sys |
| |
| |
| def main(args): |
| executor = SunTool() |
| executor.Dispatch(args) |
| |
| |
| class SunTool(object): |
| """This class performs all the SunOS tooling steps. The methods can either be |
| executed directly, or dispatched from an argument list.""" |
| |
| def Dispatch(self, args): |
| """Dispatches a string command to a method.""" |
| if len(args) < 1: |
| raise Exception("Not enough arguments") |
| |
| method = "Exec%s" % self._CommandifyName(args[0]) |
| getattr(self, method)(*args[1:]) |
| |
| def _CommandifyName(self, name_string): |
| """Transforms a tool name like copy-info-plist to CopyInfoPlist""" |
| return name_string.title().replace('-', '') |
| |
| def ExecFlock(self, lockfile, *cmd_list): |
| """Emulates the most basic behavior of Linux's flock(1).""" |
| # Rely on exception handling to report errors. |
| # Note that the stock python on SunOS has a bug |
| # where fcntl.flock(fd, LOCK_EX) always fails |
| # with EBADF, that's why we use this F_SETLK |
| # hack instead. |
| fd = os.open(lockfile, os.O_WRONLY|os.O_NOCTTY|os.O_CREAT, 0666) |
| op = struct.pack('hhllhhl', fcntl.F_WRLCK, 0, 0, 0, 0, 0, 0) |
| fcntl.fcntl(fd, fcntl.F_SETLK, op) |
| return subprocess.call(cmd_list) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main(sys.argv[1:])) |