| # -*- coding: utf-8 -*- |
| # Copyright 2010-2015, Google Inc. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| """Capture stdout output from a program and save it to a file. |
| |
| % python redirect.py out.txt echo foo |
| % cat out.txt |
| foo |
| |
| This is essentially identical to 'echo foo > out.txt' but the script |
| can be used in platforms without a Unix shell (i.e. windows). |
| """ |
| |
| __author__ = "satorux" |
| |
| import subprocess |
| import sys |
| |
| |
| def main(): |
| """The main function.""" |
| # Delete the self program name (i.e. redirect.py). |
| sys.argv.pop(0) |
| # The first parameter is the output file name. |
| output_file_name = sys.argv.pop(0) |
| # Rest are the target program name and the parameters, but we special |
| # case if the target program name ends with '.py' |
| if sys.argv[0].endswith('.py'): |
| sys.argv.insert(0, sys.executable) # Inject the python interpreter path. |
| try: |
| process = subprocess.Popen(sys.argv, stdout=subprocess.PIPE, |
| universal_newlines=True) |
| except: |
| print '==========' |
| print ' ERROR: %s' % ' '.join(sys.argv) |
| print '==========' |
| raise |
| (stdout_content, _) = process.communicate() |
| # Write the stdout content to the output file. |
| output_file = open(output_file_name, 'w') |
| output_file.write(stdout_content) |
| return process.wait() |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |