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93 lines
2.9 KiB
Python
93 lines
2.9 KiB
Python
#
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# misc.py - misc functions for the Ubuntu Developer Tools scripts.
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#
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# Copyright (C) 2008 Jonathan Davies <jpds@ubuntu.com>
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# Copyright (C) 2008-2009 Siegfried-Angel Gevatter Pujals <rainct@ubuntu.com>
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#
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# ##################################################################
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 3
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# of the License, or (at your option) any later version.
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#
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# This program 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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# See file /usr/share/common-licenses/GPL for more details.
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#
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# ##################################################################
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# Modules.
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import os
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def system_distribution():
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""" system_distro() -> string
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Detect the system's distribution and return it as a string. If the
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name of the distribution can't be determined, print an error message
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and return None.
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"""
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# We try to avoid calling the "lsb_release" as looking up the value
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# directly is faster. However, Debian doesn't have /etc/lsb-release
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# so we need to fallback to the former there.
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if os.path.isfile('/etc/lsb-release'):
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for line in open('/etc/lsb-release'):
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line = line.strip()
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if line.startswith('DISTRIB_CODENAME'):
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return line[17:]
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else:
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import commands
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output = commands.getoutput('lsb_release -cs')
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if output:
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return output
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print 'Error: Could not determine what distribution you are running.'
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return None
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def host_architecture():
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""" host_architecture -> string
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Detect the host's architecture and return it as a string
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(i386/amd64/other values). If the architecture can't be determined,
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print an error message and return None.
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"""
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arch = os.uname()[4].replace('x86_64', 'amd64').replace('i586', 'i386'
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).replace('i686', 'i386')
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if not arch or 'not found' in arch:
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print 'Error: Not running on a Debian based system; could not ' \
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'detect its architecture.'
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return None
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return arch
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def readlist(filename, uniq=True):
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""" readlist(filename, uniq) -> list
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Read a list of words from the indicated file. If 'uniq' is True, filter
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out duplicated words.
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"""
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if not os.path.isfile(filename):
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print 'File "%s" does not exist.' % filename
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return False
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content = open(filename).read().replace('\n', ' ').replace(',', ' ')
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if not content.strip():
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print 'File "%s" is empty.' % filename
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return False
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items = [item for item in content.split() if item]
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if uniq:
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items = list(set(items))
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return items
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