80 lines
3.0 KiB
Python
80 lines
3.0 KiB
Python
# -*- coding: UTF-8 -*-
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# Copyright © 2010-2012 Piotr Ożarowski <piotr@debian.org>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import logging
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from os import walk
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from os.path import abspath, isfile, join
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from subprocess import Popen, PIPE
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log = logging.getLogger(__name__)
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def from_directory(dname, extensions=('.py',)):
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"""Generate *.py file names available in given directory."""
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extensions = tuple(extensions) # .endswith doesn't like list
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if isinstance(dname, (list, tuple)):
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for item in dname:
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for fn in from_directory(item):
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yield fn
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elif isfile(dname) and dname.endswith(extensions):
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yield dname
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else:
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for root, dirs, file_names in walk(abspath(dname)):
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for fn in file_names:
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if fn.endswith(extensions):
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yield join(root, fn)
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def from_package(package_name, extensions=('.py',)):
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"""Generate *.py file names available in given package."""
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extensions = tuple(extensions) # .endswith doesn't like list
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process = Popen("/usr/bin/dpkg -L %s" % package_name,\
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shell=True, stdout=PIPE)
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stdout, stderr = process.communicate()
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if process.returncode != 0:
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raise Exception("cannot get content of %s" % package_name)
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for line in stdout.splitlines():
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if line.endswith(extensions):
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yield line
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def filter_directory(files, dname):
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"""Generate *.py file names that match given directory."""
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for fn in files:
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if fn.startswith(dname):
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yield fn
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def filter_public(files, versions):
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"""Generate *.py file names that match given versions."""
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versions_str = set("%d.%d" % i for i in versions)
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for fn in files:
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if fn.startswith('/usr/lib/python') and \
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fn[15:18] in versions_str:
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yield fn
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def filter_out_ext(files, extensions):
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"""Removes files with matching extensions from given generator."""
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for fn in files:
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if not fn.endswith(extensions):
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yield fn
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