Mercurial > hg
view mercurial/ignore.py @ 8573:62c996d543e6
match: kill unused defaults on _globre
author | Matt Mackall <mpm@selenic.com> |
---|---|
date | Sun, 24 May 2009 02:56:14 -0500 |
parents | fea40a677d43 |
children | 79a886bcf461 |
line wrap: on
line source
# ignore.py - ignored file handling for mercurial # # Copyright 2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2, incorporated herein by reference. from i18n import _ import util, match import re _commentre = None def _parselines(fp): for line in fp: if "#" in line: global _commentre if not _commentre: _commentre = re.compile(r'((^|[^\\])(\\\\)*)#.*') # remove comments prefixed by an even number of escapes line = _commentre.sub(r'\1', line) # fixup properly escaped comments that survived the above line = line.replace("\\#", "#") line = line.rstrip() if line: yield line def ignore(root, files, warn): '''return the contents of .hgignore files as a list of patterns. the files parsed for patterns include: .hgignore in the repository root any additional files specified in the [ui] section of ~/.hgrc trailing white space is dropped. the escape character is backslash. comments start with #. empty lines are skipped. lines can be of the following formats: syntax: regexp # defaults following lines to non-rooted regexps syntax: glob # defaults following lines to non-rooted globs re:pattern # non-rooted regular expression glob:pattern # non-rooted glob pattern # pattern of the current default type''' syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:'} pats = {} for f in files: try: pats[f] = [] fp = open(f) syntax = 'relre:' for line in _parselines(fp): if line.startswith('syntax:'): s = line[7:].strip() try: syntax = syntaxes[s] except KeyError: warn(_("%s: ignoring invalid syntax '%s'\n") % (f, s)) continue pat = syntax + line for s, rels in syntaxes.iteritems(): if line.startswith(rels): pat = line break elif line.startswith(s+':'): pat = rels + line[len(s)+1:] break pats[f].append(pat) except IOError, inst: if f != files[0]: warn(_("skipping unreadable ignore file '%s': %s\n") % (f, inst.strerror)) allpats = [] [allpats.extend(patlist) for patlist in pats.values()] if not allpats: return util.never try: ignorefunc = match.match(root, '', [], allpats) except util.Abort: # Re-raise an exception where the src is the right file for f, patlist in pats.iteritems(): try: match.match(root, '', [], patlist) except util.Abort, inst: raise util.Abort('%s: %s' % (f, inst[0])) return ignorefunc