1b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#!/usr/bin/env python 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# Copyright 2014 the V8 project authors. All rights reserved. 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# Redistribution and use in source and binary forms, with or without 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# modification, are permitted provided that the following conditions are 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# met: 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# * Redistributions of source code must retain the above copyright 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# notice, this list of conditions and the following disclaimer. 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# * Redistributions in binary form must reproduce the above 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# copyright notice, this list of conditions and the following 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# disclaimer in the documentation and/or other materials provided 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# with the distribution. 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# * Neither the name of Google Inc. nor the names of its 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# contributors may be used to endorse or promote products derived 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# from this software without specific prior written permission. 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# This utility concatenates several files into one. On Unix-like systems 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# it is equivalent to: 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# cat file1 file2 file3 ...files... > target 33b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# 34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# The reason for writing a seperate utility is that 'cat' is not available 35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# on all supported build platforms, but Python is, and hence this provides 36b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch# us with an easy and uniform way of doing this on all platforms. 37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochimport optparse 39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 40b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochdef Concatenate(filenames): 42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch """Concatenate files. 43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Args: 45b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch files: Array of file names. 46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch The last name is the target; all earlier ones are sources. 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Returns: 49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch True, if the operation was successful. 50b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch """ 51b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if len(filenames) < 2: 52b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch print "An error occured generating %s:\nNothing to do." % filenames[-1] 53b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return False 54b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch try: 56b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch with open(filenames[-1], "wb") as target: 57b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for filename in filenames[:-1]: 58b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch with open(filename, "rb") as current: 59b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch target.write(current.read()) 60b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return True 61b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch except IOError as e: 62b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch print "An error occured when writing %s:\n%s" % (filenames[-1], e) 63b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return False 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochdef main(): 67b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch parser = optparse.OptionParser() 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch parser.set_usage("""Concatenate several files into one. 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Equivalent to: cat file1 ... > target.""") 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (options, args) = parser.parse_args() 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch exit(0 if Concatenate(args) else 1) 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochif __name__ == "__main__": 75b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch main() 76