Mercurial > hg
view mercurial/ignore.py @ 6549:2af1b9de62b3
Merge with crew-stable
author | Patrick Mezard <pmezard@gmail.com> |
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date | Mon, 14 Apr 2008 23:04:34 +0200 |
parents | 04c76f296ad6 |
children | 4dd7b28003d2 |
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# 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, incorporated herein by reference. from i18n import _ import util, 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.items(): 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: files, ignorefunc, anypats = ( util.matcher(root, inc=allpats, src='.hgignore')) except util.Abort: # Re-raise an exception where the src is the right file for f, patlist in pats.items(): files, ignorefunc, anypats = ( util.matcher(root, inc=patlist, src=f)) return ignorefunc