Mercurial > hg
view mercurial/ignore.py @ 14270:d6907a5674a2
revlog: support writing generaldelta revlogs
With generaldelta switched on, deltas are always computed against the first
parent when adding revisions. This is done regardless of what revision the
incoming bundle, if any, is deltaed against.
The exact delta building strategy is subject to change, but this will not
affect compatibility.
Generaldelta is switched off by default.
author | Sune Foldager <cryo@cyanite.org> |
---|---|
date | Sun, 08 May 2011 21:32:33 +0200 |
parents | 58c497d0e44d |
children | ee112eb69d2a |
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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 version 2 or any later version. from i18n import _ import util, match import re _commentre = None def ignorepats(lines): '''parse lines (iterable) of .hgignore text, returning a tuple of (patterns, parse errors). These patterns should be given to compile() to be validated and converted into a match function.''' syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:'} syntax = 'relre:' patterns = [] warnings = [] for line in lines: 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 not line: continue if line.startswith('syntax:'): s = line[7:].strip() try: syntax = syntaxes[s] except KeyError: warnings.append(_("ignoring invalid syntax '%s'") % 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 patterns.append(pat) return patterns, warnings def ignore(root, files, warn): '''return matcher covering patterns in 'files'. 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''' pats = {} for f in files: try: pats[f] = [] fp = open(f) pats[f], warnings = ignorepats(fp) for warning in warnings: warn("%s: %s\n" % (f, warning)) except IOError, inst: if f != files[0]: warn(_("skipping unreadable ignore file '%s': %s\n") % (f, inst.strerror)) allpats = [] for patlist in pats.values(): allpats.extend(patlist) 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