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59 lines
1.9 KiB
59 lines
1.9 KiB
# This file is part of Fusion-icon.
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# Fusion-icon is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Fusion-icon is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Author(s): crdlb, nesl247
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#
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# Copyright 2007 Christopher Williams <christopherw@verizon.net>
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import subprocess, signal, os
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# avoid zombies
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signal.signal(signal.SIGCHLD, signal.SIG_IGN)
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def run(command, mode='spawn', quiet=False, env=None):
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'Simple wrapper for the subprocess module. Supported modes: spawn, call, and output'
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if mode == 'spawn':
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if not quiet:
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popen_object = subprocess.Popen(command)
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else:
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popen_object = subprocess.Popen(command, stdout=open(os.devnull, 'w'))
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return popen_object
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elif mode == 'call':
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# restore normal child handling
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signal.signal(signal.SIGCHLD, signal.SIG_DFL)
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if not quiet:
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exitcode = subprocess.call(command, stderr=subprocess.PIPE)
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else:
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exitcode = subprocess.call(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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# turn zombie protection back on
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signal.signal(signal.SIGCHLD, signal.SIG_IGN)
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return exitcode
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elif mode == 'output':
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signal.signal(signal.SIGCHLD, signal.SIG_DFL)
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if not env:
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output = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=open(os.devnull, 'w')).communicate()[0]
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else:
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output = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=open(os.devnull, 'w'), env=env).communicate()[0]
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signal.signal(signal.SIGCHLD, signal.SIG_IGN)
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return output
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