63 lines
1.1 KiB
Python
63 lines
1.1 KiB
Python
# Copyright (c) Twisted Matrix Laboratories.
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# See LICENSE for details.
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"""
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A release-automation toolkit.
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Don't use this outside of Twisted.
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Maintainer: Christopher Armstrong
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"""
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import os
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# errors
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class DirectoryExists(OSError):
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"""
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Some directory exists when it shouldn't.
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"""
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pass
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class DirectoryDoesntExist(OSError):
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"""
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Some directory doesn't exist when it should.
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"""
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pass
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class CommandFailed(OSError):
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pass
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# utilities
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def sh(command, null=True, prompt=False):
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"""
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I'll try to execute C{command}, and if C{prompt} is true, I'll
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ask before running it. If the command returns something other
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than 0, I'll raise C{CommandFailed(command)}.
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"""
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print "--$", command
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if prompt:
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if raw_input("run ?? ").startswith('n'):
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return
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if null:
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command = "%s > /dev/null" % command
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if os.system(command) != 0:
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raise CommandFailed(command)
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def runChdirSafe(f, *args, **kw):
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origdir = os.path.abspath('.')
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try:
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return f(*args, **kw)
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finally:
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os.chdir(origdir)
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