bzr branch
http://bzr.ed.am/stdhome
19
by Tim Marston
added file matcher (for symlink accept and/or ignore lists) |
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# file_matcher.py |
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# |
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# Copyright (C) 2014 Tim Marston <tim@edm.am> |
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# |
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# This file is part of stdhome (hereafter referred to as "this program"). |
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# See http://ed.am/dev/stdhome for more information. |
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# |
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# This program 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 3 of the License, or |
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# (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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# 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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38
by Tim Marston
fixed bug in FileMatcher causing it to blow up when ~/.stdhomerc wasn't present |
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import os, re, errno |
19
by Tim Marston
added file matcher (for symlink accept and/or ignore lists) |
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class FileMatcher: |
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def __init__( self, file, section = None ): |
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self.file = file |
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25
by Tim Marston
fixed file_matcher |
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self.section = section |
38
by Tim Marston
fixed bug in FileMatcher causing it to blow up when ~/.stdhomerc wasn't present |
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self.patterns = list() |
19
by Tim Marston
added file matcher (for symlink accept and/or ignore lists) |
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self.read() |
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def read( self ): |
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# read file |
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file = os.path.expanduser( self.file ) |
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38
by Tim Marston
fixed bug in FileMatcher causing it to blow up when ~/.stdhomerc wasn't present |
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try: |
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with open( file ) as f: |
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lines = f.readlines() |
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except IOError as e: |
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if e.errno != errno.ENOENT: raise |
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lines = list() |
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19
by Tim Marston
added file matcher (for symlink accept and/or ignore lists) |
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# parse file |
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capture = False if self.section else True |
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for line in lines: |
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# clean up line and skip empty lines and comments |
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line = line.strip(); |
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if not len( line ): continue |
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if line[ :1 ] == '#': continue |
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# if section is set, capture lines after the section heading and |
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# only until the next heading |
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if capture: |
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if self.section and re.match( '\[.*\]', line ): break |
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self.patterns.append( self.convert_line_to_regex( line ) ) |
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elif self.section and line == '[' + self.section + ']': |
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capture = True |
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def convert_line_to_regex( self, line ): |
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# detect (and remove) quotes |
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# quotes = None |
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# if line[ :1 ] == line[ -1: ] and line[ :1 ] in list( "'", '"' ): |
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# quotes = line[ :1 ] |
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# line = line[ 1:-1 ] |
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# detect escaped chars |
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# if quotes == |
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# convert * and ? |
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line = re.sub( r'\?', '.', line ) |
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line = re.sub( r'\*', '.*', line ) |
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return line |
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38
by Tim Marston
fixed bug in FileMatcher causing it to blow up when ~/.stdhomerc wasn't present |
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def matches( self, rel_file ): |
19
by Tim Marston
added file matcher (for symlink accept and/or ignore lists) |
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for pattern in self.patterns: |
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if re.match( pattern, rel_file ): |
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return True |
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return False |
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38
by Tim Marston
fixed bug in FileMatcher causing it to blow up when ~/.stdhomerc wasn't present |
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def __str__( self ): |
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content = "', '".join( self.patterns ) |
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if content: content = " '" + content + "' " |
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return "FileMatcher(" + content + ")" |