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Editing: files.py
# Copyright © 2012 Piotr Ożarowski <piotr@debian.org> # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. import logging from os import walk, environ from os.path import abspath, isfile, join from subprocess import Popen, PIPE from debpython import PUBLIC_DIR_RE log = logging.getLogger(__name__) def from_directory(dname, extensions=('.py',)): """Generate *.py file names available in given directory.""" extensions = tuple(extensions) # .endswith doesn't like list if isinstance(dname, (list, tuple)): for item in dname: for fn in from_directory(item): yield fn elif isfile(dname) and dname.endswith(extensions): yield dname else: for root, dirs, file_names in walk(abspath(dname)): for fn in file_names: if fn.endswith(extensions): yield join(root, fn) def from_package(package_name, extensions=('.py',)): """Generate *.py file names available in given package.""" extensions = tuple(extensions) # .endswith doesn't like list env = environ.copy() env['LC_ALL'] = 'C.UTF-8' process = Popen(('/usr/bin/dpkg', '-L', package_name), stdout=PIPE, stderr=PIPE, env=env) stdout, stderr = process.communicate() if process.returncode != 0: raise Exception("cannot get content of %s" % package_name) stdout = stdout.decode('utf-8', errors='replace') for line in stdout.splitlines(): if line.endswith(extensions): yield line def filter_directory(files, dname): """Generate *.py file names that match given directory.""" for fn in files: if fn.startswith(dname): yield fn def filter_public(files, versions): """Generate *.py file names that match given versions.""" vstr = set("%d.%d" % i for i in versions) shared_vstr = set(str(i[0]) for i in versions) for fn in files: public_dir = PUBLIC_DIR_RE.match(fn) if public_dir: vers = public_dir.group(1) if vers in shared_vstr or vers in vstr: yield fn def filter_out_ext(files, extensions): """Removes files with matching extensions from given generator.""" extensions = tuple(extensions) # .endswith doesn't like list for fn in files: if not fn.endswith(extensions): yield fn
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