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# match.py - filename matching
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#
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# Copyright 2008, 2009 Matt Mackall <mpm@selenic.com> and others
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import, print_function
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import copy
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import os
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import re
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from .i18n import _
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from . import (
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error,
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pathutil,
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util,
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)
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allpatternkinds = ('re', 'glob', 'path', 'relglob', 'relpath', 'relre',
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'listfile', 'listfile0', 'set', 'include', 'subinclude',
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'rootfilesin')
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cwdrelativepatternkinds = ('relpath', 'glob')
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propertycache = util.propertycache
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def _rematcher(regex):
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'''compile the regexp with the best available regexp engine and return a
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matcher function'''
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m = util.re.compile(regex)
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try:
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# slightly faster, provided by facebook's re2 bindings
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return m.test_match
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except AttributeError:
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return m.match
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def _expandsets(kindpats, ctx, listsubrepos):
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'''Returns the kindpats list with the 'set' patterns expanded.'''
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fset = set()
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other = []
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for kind, pat, source in kindpats:
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if kind == 'set':
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if not ctx:
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raise error.ProgrammingError("fileset expression with no "
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"context")
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s = ctx.getfileset(pat)
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fset.update(s)
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if listsubrepos:
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for subpath in ctx.substate:
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s = ctx.sub(subpath).getfileset(pat)
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fset.update(subpath + '/' + f for f in s)
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continue
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other.append((kind, pat, source))
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return fset, other
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def _expandsubinclude(kindpats, root):
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'''Returns the list of subinclude matcher args and the kindpats without the
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subincludes in it.'''
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relmatchers = []
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other = []
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for kind, pat, source in kindpats:
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if kind == 'subinclude':
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sourceroot = pathutil.dirname(util.normpath(source))
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pat = util.pconvert(pat)
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path = pathutil.join(sourceroot, pat)
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newroot = pathutil.dirname(path)
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matcherargs = (newroot, '', [], ['include:%s' % path])
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prefix = pathutil.canonpath(root, root, newroot)
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if prefix:
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prefix += '/'
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relmatchers.append((prefix, matcherargs))
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else:
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other.append((kind, pat, source))
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return relmatchers, other
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def _kindpatsalwaysmatch(kindpats):
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""""Checks whether the kindspats match everything, as e.g.
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'relpath:.' does.
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"""
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for kind, pat, source in kindpats:
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if pat != '' or kind not in ['relpath', 'glob']:
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return False
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return True
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def match(root, cwd, patterns=None, include=None, exclude=None, default='glob',
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exact=False, auditor=None, ctx=None, listsubrepos=False, warn=None,
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badfn=None, icasefs=False):
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"""build an object to match a set of file patterns
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arguments:
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root - the canonical root of the tree you're matching against
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cwd - the current working directory, if relevant
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patterns - patterns to find
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include - patterns to include (unless they are excluded)
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exclude - patterns to exclude (even if they are included)
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default - if a pattern in patterns has no explicit type, assume this one
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exact - patterns are actually filenames (include/exclude still apply)
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warn - optional function used for printing warnings
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badfn - optional bad() callback for this matcher instead of the default
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icasefs - make a matcher for wdir on case insensitive filesystems, which
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normalizes the given patterns to the case in the filesystem
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a pattern is one of:
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'glob:<glob>' - a glob relative to cwd
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're:<regexp>' - a regular expression
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'path:<path>' - a path relative to repository root, which is matched
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recursively
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'rootfilesin:<path>' - a path relative to repository root, which is
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matched non-recursively (will not match subdirectories)
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'relglob:<glob>' - an unrooted glob (*.c matches C files in all dirs)
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'relpath:<path>' - a path relative to cwd
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'relre:<regexp>' - a regexp that needn't match the start of a name
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'set:<fileset>' - a fileset expression
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'include:<path>' - a file of patterns to read and include
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'subinclude:<path>' - a file of patterns to match against files under
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the same directory
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'<something>' - a pattern of the specified default type
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"""
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normalize = _donormalize
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if icasefs:
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if exact:
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raise error.ProgrammingError("a case-insensitive exact matcher "
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"doesn't make sense")
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dirstate = ctx.repo().dirstate
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dsnormalize = dirstate.normalize
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def normalize(patterns, default, root, cwd, auditor, warn):
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kp = _donormalize(patterns, default, root, cwd, auditor, warn)
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kindpats = []
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for kind, pats, source in kp:
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if kind not in ('re', 'relre'): # regex can't be normalized
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p = pats
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pats = dsnormalize(pats)
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# Preserve the original to handle a case only rename.
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if p != pats and p in dirstate:
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kindpats.append((kind, p, source))
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kindpats.append((kind, pats, source))
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return kindpats
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if exact:
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m = exactmatcher(root, cwd, patterns, badfn)
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elif patterns:
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kindpats = normalize(patterns, default, root, cwd, auditor, warn)
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if _kindpatsalwaysmatch(kindpats):
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m = alwaysmatcher(root, cwd, badfn, relativeuipath=True)
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else:
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m = patternmatcher(root, cwd, kindpats, ctx=ctx,
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listsubrepos=listsubrepos, badfn=badfn)
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else:
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# It's a little strange that no patterns means to match everything.
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# Consider changing this to match nothing (probably using nevermatcher).
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m = alwaysmatcher(root, cwd, badfn)
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if include:
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kindpats = normalize(include, 'glob', root, cwd, auditor, warn)
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im = includematcher(root, cwd, kindpats, ctx=ctx,
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listsubrepos=listsubrepos, badfn=None)
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m = intersectmatchers(m, im)
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if exclude:
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kindpats = normalize(exclude, 'glob', root, cwd, auditor, warn)
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em = includematcher(root, cwd, kindpats, ctx=ctx,
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listsubrepos=listsubrepos, badfn=None)
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m = differencematcher(m, em)
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return m
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def exact(root, cwd, files, badfn=None):
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return exactmatcher(root, cwd, files, badfn=badfn)
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def always(root, cwd):
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return alwaysmatcher(root, cwd)
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def never(root, cwd):
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return nevermatcher(root, cwd)
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def badmatch(match, badfn):
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"""Make a copy of the given matcher, replacing its bad method with the given
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one.
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"""
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m = copy.copy(match)
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m.bad = badfn
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return m
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def _donormalize(patterns, default, root, cwd, auditor, warn):
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'''Convert 'kind:pat' from the patterns list to tuples with kind and
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normalized and rooted patterns and with listfiles expanded.'''
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kindpats = []
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for kind, pat in [_patsplit(p, default) for p in patterns]:
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if kind in cwdrelativepatternkinds:
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pat = pathutil.canonpath(root, cwd, pat, auditor)
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elif kind in ('relglob', 'path', 'rootfilesin'):
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pat = util.normpath(pat)
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elif kind in ('listfile', 'listfile0'):
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try:
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files = util.readfile(pat)
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if kind == 'listfile0':
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files = files.split('\0')
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else:
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files = files.splitlines()
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files = [f for f in files if f]
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except EnvironmentError:
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raise error.Abort(_("unable to read file list (%s)") % pat)
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for k, p, source in _donormalize(files, default, root, cwd,
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auditor, warn):
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kindpats.append((k, p, pat))
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continue
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elif kind == 'include':
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try:
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fullpath = os.path.join(root, util.localpath(pat))
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includepats = readpatternfile(fullpath, warn)
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for k, p, source in _donormalize(includepats, default,
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root, cwd, auditor, warn):
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kindpats.append((k, p, source or pat))
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except error.Abort as inst:
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raise error.Abort('%s: %s' % (pat, inst[0]))
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except IOError as inst:
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if warn:
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warn(_("skipping unreadable pattern file '%s': %s\n") %
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(pat, inst.strerror))
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continue
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# else: re or relre - which cannot be normalized
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kindpats.append((kind, pat, ''))
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return kindpats
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class basematcher(object):
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def __init__(self, root, cwd, badfn=None, relativeuipath=True):
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self._root = root
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self._cwd = cwd
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if badfn is not None:
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self.bad = badfn
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self._relativeuipath = relativeuipath
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def __call__(self, fn):
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return self.matchfn(fn)
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def __iter__(self):
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for f in self._files:
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yield f
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# Callbacks related to how the matcher is used by dirstate.walk.
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# Subscribers to these events must monkeypatch the matcher object.
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def bad(self, f, msg):
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'''Callback from dirstate.walk for each explicit file that can't be
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found/accessed, with an error message.'''
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pass
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# If an explicitdir is set, it will be called when an explicitly listed
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# directory is visited.
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explicitdir = None
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# If an traversedir is set, it will be called when a directory discovered
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# by recursive traversal is visited.
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traversedir = None
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def abs(self, f):
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'''Convert a repo path back to path that is relative to the root of the
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matcher.'''
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return f
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def rel(self, f):
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'''Convert repo path back to path that is relative to cwd of matcher.'''
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return util.pathto(self._root, self._cwd, f)
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def uipath(self, f):
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'''Convert repo path to a display path. If patterns or -I/-X were used
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to create this matcher, the display path will be relative to cwd.
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Otherwise it is relative to the root of the repo.'''
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return (self._relativeuipath and self.rel(f)) or self.abs(f)
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@propertycache
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def _files(self):
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return []
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def files(self):
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'''Explicitly listed files or patterns or roots:
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if no patterns or .always(): empty list,
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if exact: list exact files,
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if not .anypats(): list all files and dirs,
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else: optimal roots'''
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return self._files
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@propertycache
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def _fileset(self):
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return set(self._files)
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def exact(self, f):
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'''Returns True if f is in .files().'''
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return f in self._fileset
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def matchfn(self, f):
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return False
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def visitdir(self, dir):
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'''Decides whether a directory should be visited based on whether it
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has potential matches in it or one of its subdirectories. This is
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based on the match's primary, included, and excluded patterns.
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Returns the string 'all' if the given directory and all subdirectories
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should be visited. Otherwise returns True or False indicating whether
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the given directory should be visited.
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This function's behavior is undefined if it has returned False for
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one of the dir's parent directories.
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'''
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return True
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def always(self):
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'''Matcher will match everything and .files() will be empty --
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optimization might be possible.'''
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return False
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def isexact(self):
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'''Matcher will match exactly the list of files in .files() --
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optimization might be possible.'''
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return False
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def prefix(self):
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'''Matcher will match the paths in .files() recursively --
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optimization might be possible.'''
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return False
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def anypats(self):
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'''None of .always(), .isexact(), and .prefix() is true --
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optimizations will be difficult.'''
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return not self.always() and not self.isexact() and not self.prefix()
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class alwaysmatcher(basematcher):
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'''Matches everything.'''
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def __init__(self, root, cwd, badfn=None, relativeuipath=False):
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super(alwaysmatcher, self).__init__(root, cwd, badfn,
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relativeuipath=relativeuipath)
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def always(self):
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return True
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def matchfn(self, f):
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return True
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def visitdir(self, dir):
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return 'all'
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def __repr__(self):
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return '<alwaysmatcher>'
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class nevermatcher(basematcher):
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'''Matches nothing.'''
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def __init__(self, root, cwd, badfn=None):
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super(nevermatcher, self).__init__(root, cwd, badfn)
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# It's a little weird to say that the nevermatcher is an exact matcher
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# or a prefix matcher, but it seems to make sense to let callers take
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# fast paths based on either. There will be no exact matches, nor any
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# prefixes (files() returns []), so fast paths iterating over them should
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# be efficient (and correct).
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def isexact(self):
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return True
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def prefix(self):
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return True
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def visitdir(self, dir):
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return False
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def __repr__(self):
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return '<nevermatcher>'
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class patternmatcher(basematcher):
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def __init__(self, root, cwd, kindpats, ctx=None, listsubrepos=False,
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badfn=None):
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super(patternmatcher, self).__init__(root, cwd, badfn)
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self._files = _explicitfiles(kindpats)
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self._prefix = _prefix(kindpats)
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self._pats, self.matchfn = _buildmatch(ctx, kindpats, '$', listsubrepos,
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root)
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@propertycache
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def _dirs(self):
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return set(util.dirs(self._fileset)) | {'.'}
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def visitdir(self, dir):
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if self._prefix and dir in self._fileset:
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return 'all'
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return ('.' in self._fileset or
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dir in self._fileset or
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dir in self._dirs or
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any(parentdir in self._fileset
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for parentdir in util.finddirs(dir)))
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def prefix(self):
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return self._prefix
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def __repr__(self):
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return ('<patternmatcher patterns=%r>' % self._pats)
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class includematcher(basematcher):
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def __init__(self, root, cwd, kindpats, ctx=None, listsubrepos=False,
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badfn=None):
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super(includematcher, self).__init__(root, cwd, badfn)
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self._pats, self.matchfn = _buildmatch(ctx, kindpats, '(?:/|$)',
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listsubrepos, root)
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self._prefix = _prefix(kindpats)
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roots, dirs = _rootsanddirs(kindpats)
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# roots are directories which are recursively included.
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self._roots = set(roots)
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# dirs are directories which are non-recursively included.
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self._dirs = set(dirs)
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def visitdir(self, dir):
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if self._prefix and dir in self._roots:
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return 'all'
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return ('.' in self._roots or
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dir in self._roots or
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dir in self._dirs or
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any(parentdir in self._roots
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for parentdir in util.finddirs(dir)))
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def __repr__(self):
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return ('<includematcher includes=%r>' % self._pats)
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class exactmatcher(basematcher):
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'''Matches the input files exactly. They are interpreted as paths, not
|
|
|
patterns (so no kind-prefixes).
|
|
|
'''
|
|
|
|
|
|
def __init__(self, root, cwd, files, badfn=None):
|
|
|
super(exactmatcher, self).__init__(root, cwd, badfn)
|
|
|
|
|
|
if isinstance(files, list):
|
|
|
self._files = files
|
|
|
else:
|
|
|
self._files = list(files)
|
|
|
|
|
|
matchfn = basematcher.exact
|
|
|
|
|
|
@propertycache
|
|
|
def _dirs(self):
|
|
|
return set(util.dirs(self._fileset)) | {'.'}
|
|
|
|
|
|
def visitdir(self, dir):
|
|
|
return dir in self._dirs
|
|
|
|
|
|
def isexact(self):
|
|
|
return True
|
|
|
|
|
|
def __repr__(self):
|
|
|
return ('<exactmatcher files=%r>' % self._files)
|
|
|
|
|
|
class differencematcher(basematcher):
|
|
|
'''Composes two matchers by matching if the first matches and the second
|
|
|
does not. Well, almost... If the user provides a pattern like "-X foo foo",
|
|
|
Mercurial actually does match "foo" against that. That's because exact
|
|
|
matches are treated specially. So, since this differencematcher is used for
|
|
|
excludes, it needs to special-case exact matching.
|
|
|
|
|
|
The second matcher's non-matching-attributes (root, cwd, bad, explicitdir,
|
|
|
traversedir) are ignored.
|
|
|
|
|
|
TODO: If we want to keep the behavior described above for exact matches, we
|
|
|
should consider instead treating the above case something like this:
|
|
|
union(exact(foo), difference(pattern(foo), include(foo)))
|
|
|
'''
|
|
|
def __init__(self, m1, m2):
|
|
|
super(differencematcher, self).__init__(m1._root, m1._cwd)
|
|
|
self._m1 = m1
|
|
|
self._m2 = m2
|
|
|
self.bad = m1.bad
|
|
|
self.explicitdir = m1.explicitdir
|
|
|
self.traversedir = m1.traversedir
|
|
|
|
|
|
def matchfn(self, f):
|
|
|
return self._m1(f) and (not self._m2(f) or self._m1.exact(f))
|
|
|
|
|
|
@propertycache
|
|
|
def _files(self):
|
|
|
if self.isexact():
|
|
|
return [f for f in self._m1.files() if self(f)]
|
|
|
# If m1 is not an exact matcher, we can't easily figure out the set of
|
|
|
# files, because its files() are not always files. For example, if
|
|
|
# m1 is "path:dir" and m2 is "rootfileins:.", we don't
|
|
|
# want to remove "dir" from the set even though it would match m2,
|
|
|
# because the "dir" in m1 may not be a file.
|
|
|
return self._m1.files()
|
|
|
|
|
|
def visitdir(self, dir):
|
|
|
if self._m2.visitdir(dir) == 'all':
|
|
|
# There's a bug here: If m1 matches file 'dir/file' and m2 excludes
|
|
|
# 'dir' (recursively), we should still visit 'dir' due to the
|
|
|
# exception we have for exact matches.
|
|
|
return False
|
|
|
return bool(self._m1.visitdir(dir))
|
|
|
|
|
|
def isexact(self):
|
|
|
return self._m1.isexact()
|
|
|
|
|
|
def __repr__(self):
|
|
|
return ('<differencematcher m1=%r, m2=%r>' % (self._m1, self._m2))
|
|
|
|
|
|
def intersectmatchers(m1, m2):
|
|
|
'''Composes two matchers by matching if both of them match.
|
|
|
|
|
|
The second matcher's non-matching-attributes (root, cwd, bad, explicitdir,
|
|
|
traversedir) are ignored.
|
|
|
'''
|
|
|
if m1 is None or m2 is None:
|
|
|
return m1 or m2
|
|
|
if m1.always():
|
|
|
m = copy.copy(m2)
|
|
|
# TODO: Consider encapsulating these things in a class so there's only
|
|
|
# one thing to copy from m1.
|
|
|
m.bad = m1.bad
|
|
|
m.explicitdir = m1.explicitdir
|
|
|
m.traversedir = m1.traversedir
|
|
|
m.abs = m1.abs
|
|
|
m.rel = m1.rel
|
|
|
m._relativeuipath |= m1._relativeuipath
|
|
|
return m
|
|
|
if m2.always():
|
|
|
m = copy.copy(m1)
|
|
|
m._relativeuipath |= m2._relativeuipath
|
|
|
return m
|
|
|
return intersectionmatcher(m1, m2)
|
|
|
|
|
|
class intersectionmatcher(basematcher):
|
|
|
def __init__(self, m1, m2):
|
|
|
super(intersectionmatcher, self).__init__(m1._root, m1._cwd)
|
|
|
self._m1 = m1
|
|
|
self._m2 = m2
|
|
|
self.bad = m1.bad
|
|
|
self.explicitdir = m1.explicitdir
|
|
|
self.traversedir = m1.traversedir
|
|
|
|
|
|
@propertycache
|
|
|
def _files(self):
|
|
|
if self.isexact():
|
|
|
m1, m2 = self._m1, self._m2
|
|
|
if not m1.isexact():
|
|
|
m1, m2 = m2, m1
|
|
|
return [f for f in m1.files() if m2(f)]
|
|
|
# It neither m1 nor m2 is an exact matcher, we can't easily intersect
|
|
|
# the set of files, because their files() are not always files. For
|
|
|
# example, if intersecting a matcher "-I glob:foo.txt" with matcher of
|
|
|
# "path:dir2", we don't want to remove "dir2" from the set.
|
|
|
return self._m1.files() + self._m2.files()
|
|
|
|
|
|
def matchfn(self, f):
|
|
|
return self._m1(f) and self._m2(f)
|
|
|
|
|
|
def visitdir(self, dir):
|
|
|
visit1 = self._m1.visitdir(dir)
|
|
|
if visit1 == 'all':
|
|
|
return self._m2.visitdir(dir)
|
|
|
# bool() because visit1=True + visit2='all' should not be 'all'
|
|
|
return bool(visit1 and self._m2.visitdir(dir))
|
|
|
|
|
|
def always(self):
|
|
|
return self._m1.always() and self._m2.always()
|
|
|
|
|
|
def isexact(self):
|
|
|
return self._m1.isexact() or self._m2.isexact()
|
|
|
|
|
|
def __repr__(self):
|
|
|
return ('<intersectionmatcher m1=%r, m2=%r>' % (self._m1, self._m2))
|
|
|
|
|
|
class subdirmatcher(basematcher):
|
|
|
"""Adapt a matcher to work on a subdirectory only.
|
|
|
|
|
|
The paths are remapped to remove/insert the path as needed:
|
|
|
|
|
|
>>> from . import pycompat
|
|
|
>>> m1 = match(b'root', b'', [b'a.txt', b'sub/b.txt'])
|
|
|
>>> m2 = subdirmatcher(b'sub', m1)
|
|
|
>>> bool(m2(b'a.txt'))
|
|
|
False
|
|
|
>>> bool(m2(b'b.txt'))
|
|
|
True
|
|
|
>>> bool(m2.matchfn(b'a.txt'))
|
|
|
False
|
|
|
>>> bool(m2.matchfn(b'b.txt'))
|
|
|
True
|
|
|
>>> m2.files()
|
|
|
['b.txt']
|
|
|
>>> m2.exact(b'b.txt')
|
|
|
True
|
|
|
>>> util.pconvert(m2.rel(b'b.txt'))
|
|
|
'sub/b.txt'
|
|
|
>>> def bad(f, msg):
|
|
|
... print(pycompat.sysstr(b"%s: %s" % (f, msg)))
|
|
|
>>> m1.bad = bad
|
|
|
>>> m2.bad(b'x.txt', b'No such file')
|
|
|
sub/x.txt: No such file
|
|
|
>>> m2.abs(b'c.txt')
|
|
|
'sub/c.txt'
|
|
|
"""
|
|
|
|
|
|
def __init__(self, path, matcher):
|
|
|
super(subdirmatcher, self).__init__(matcher._root, matcher._cwd)
|
|
|
self._path = path
|
|
|
self._matcher = matcher
|
|
|
self._always = matcher.always()
|
|
|
|
|
|
self._files = [f[len(path) + 1:] for f in matcher._files
|
|
|
if f.startswith(path + "/")]
|
|
|
|
|
|
# If the parent repo had a path to this subrepo and the matcher is
|
|
|
# a prefix matcher, this submatcher always matches.
|
|
|
if matcher.prefix():
|
|
|
self._always = any(f == path for f in matcher._files)
|
|
|
|
|
|
def bad(self, f, msg):
|
|
|
self._matcher.bad(self._path + "/" + f, msg)
|
|
|
|
|
|
def abs(self, f):
|
|
|
return self._matcher.abs(self._path + "/" + f)
|
|
|
|
|
|
def rel(self, f):
|
|
|
return self._matcher.rel(self._path + "/" + f)
|
|
|
|
|
|
def uipath(self, f):
|
|
|
return self._matcher.uipath(self._path + "/" + f)
|
|
|
|
|
|
def matchfn(self, f):
|
|
|
# Some information is lost in the superclass's constructor, so we
|
|
|
# can not accurately create the matching function for the subdirectory
|
|
|
# from the inputs. Instead, we override matchfn() and visitdir() to
|
|
|
# call the original matcher with the subdirectory path prepended.
|
|
|
return self._matcher.matchfn(self._path + "/" + f)
|
|
|
|
|
|
def visitdir(self, dir):
|
|
|
if dir == '.':
|
|
|
dir = self._path
|
|
|
else:
|
|
|
dir = self._path + "/" + dir
|
|
|
return self._matcher.visitdir(dir)
|
|
|
|
|
|
def always(self):
|
|
|
return self._always
|
|
|
|
|
|
def prefix(self):
|
|
|
return self._matcher.prefix() and not self._always
|
|
|
|
|
|
def __repr__(self):
|
|
|
return ('<subdirmatcher path=%r, matcher=%r>' %
|
|
|
(self._path, self._matcher))
|
|
|
|
|
|
class unionmatcher(basematcher):
|
|
|
"""A matcher that is the union of several matchers.
|
|
|
|
|
|
The non-matching-attributes (root, cwd, bad, explicitdir, traversedir) are
|
|
|
taken from the first matcher.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, matchers):
|
|
|
m1 = matchers[0]
|
|
|
super(unionmatcher, self).__init__(m1._root, m1._cwd)
|
|
|
self.explicitdir = m1.explicitdir
|
|
|
self.traversedir = m1.traversedir
|
|
|
self._matchers = matchers
|
|
|
|
|
|
def matchfn(self, f):
|
|
|
for match in self._matchers:
|
|
|
if match(f):
|
|
|
return True
|
|
|
return False
|
|
|
|
|
|
def visitdir(self, dir):
|
|
|
r = False
|
|
|
for m in self._matchers:
|
|
|
v = m.visitdir(dir)
|
|
|
if v == 'all':
|
|
|
return v
|
|
|
r |= v
|
|
|
return r
|
|
|
|
|
|
def __repr__(self):
|
|
|
return ('<unionmatcher matchers=%r>' % self._matchers)
|
|
|
|
|
|
def patkind(pattern, default=None):
|
|
|
'''If pattern is 'kind:pat' with a known kind, return kind.'''
|
|
|
return _patsplit(pattern, default)[0]
|
|
|
|
|
|
def _patsplit(pattern, default):
|
|
|
"""Split a string into the optional pattern kind prefix and the actual
|
|
|
pattern."""
|
|
|
if ':' in pattern:
|
|
|
kind, pat = pattern.split(':', 1)
|
|
|
if kind in allpatternkinds:
|
|
|
return kind, pat
|
|
|
return default, pattern
|
|
|
|
|
|
def _globre(pat):
|
|
|
r'''Convert an extended glob string to a regexp string.
|
|
|
|
|
|
>>> from . import pycompat
|
|
|
>>> def bprint(s):
|
|
|
... print(pycompat.sysstr(s))
|
|
|
>>> bprint(_globre(br'?'))
|
|
|
.
|
|
|
>>> bprint(_globre(br'*'))
|
|
|
[^/]*
|
|
|
>>> bprint(_globre(br'**'))
|
|
|
.*
|
|
|
>>> bprint(_globre(br'**/a'))
|
|
|
(?:.*/)?a
|
|
|
>>> bprint(_globre(br'a/**/b'))
|
|
|
a\/(?:.*/)?b
|
|
|
>>> bprint(_globre(br'[a*?!^][^b][!c]'))
|
|
|
[a*?!^][\^b][^c]
|
|
|
>>> bprint(_globre(br'{a,b}'))
|
|
|
(?:a|b)
|
|
|
>>> bprint(_globre(br'.\*\?'))
|
|
|
\.\*\?
|
|
|
'''
|
|
|
i, n = 0, len(pat)
|
|
|
res = ''
|
|
|
group = 0
|
|
|
escape = util.re.escape
|
|
|
def peek():
|
|
|
return i < n and pat[i:i + 1]
|
|
|
while i < n:
|
|
|
c = pat[i:i + 1]
|
|
|
i += 1
|
|
|
if c not in '*?[{},\\':
|
|
|
res += escape(c)
|
|
|
elif c == '*':
|
|
|
if peek() == '*':
|
|
|
i += 1
|
|
|
if peek() == '/':
|
|
|
i += 1
|
|
|
res += '(?:.*/)?'
|
|
|
else:
|
|
|
res += '.*'
|
|
|
else:
|
|
|
res += '[^/]*'
|
|
|
elif c == '?':
|
|
|
res += '.'
|
|
|
elif c == '[':
|
|
|
j = i
|
|
|
if j < n and pat[j:j + 1] in '!]':
|
|
|
j += 1
|
|
|
while j < n and pat[j:j + 1] != ']':
|
|
|
j += 1
|
|
|
if j >= n:
|
|
|
res += '\\['
|
|
|
else:
|
|
|
stuff = pat[i:j].replace('\\','\\\\')
|
|
|
i = j + 1
|
|
|
if stuff[0:1] == '!':
|
|
|
stuff = '^' + stuff[1:]
|
|
|
elif stuff[0:1] == '^':
|
|
|
stuff = '\\' + stuff
|
|
|
res = '%s[%s]' % (res, stuff)
|
|
|
elif c == '{':
|
|
|
group += 1
|
|
|
res += '(?:'
|
|
|
elif c == '}' and group:
|
|
|
res += ')'
|
|
|
group -= 1
|
|
|
elif c == ',' and group:
|
|
|
res += '|'
|
|
|
elif c == '\\':
|
|
|
p = peek()
|
|
|
if p:
|
|
|
i += 1
|
|
|
res += escape(p)
|
|
|
else:
|
|
|
res += escape(c)
|
|
|
else:
|
|
|
res += escape(c)
|
|
|
return res
|
|
|
|
|
|
def _regex(kind, pat, globsuffix):
|
|
|
'''Convert a (normalized) pattern of any kind into a regular expression.
|
|
|
globsuffix is appended to the regexp of globs.'''
|
|
|
if not pat:
|
|
|
return ''
|
|
|
if kind == 're':
|
|
|
return pat
|
|
|
if kind in ('path', 'relpath'):
|
|
|
if pat == '.':
|
|
|
return ''
|
|
|
return util.re.escape(pat) + '(?:/|$)'
|
|
|
if kind == 'rootfilesin':
|
|
|
if pat == '.':
|
|
|
escaped = ''
|
|
|
else:
|
|
|
# Pattern is a directory name.
|
|
|
escaped = util.re.escape(pat) + '/'
|
|
|
# Anything after the pattern must be a non-directory.
|
|
|
return escaped + '[^/]+$'
|
|
|
if kind == 'relglob':
|
|
|
return '(?:|.*/)' + _globre(pat) + globsuffix
|
|
|
if kind == 'relre':
|
|
|
if pat.startswith('^'):
|
|
|
return pat
|
|
|
return '.*' + pat
|
|
|
return _globre(pat) + globsuffix
|
|
|
|
|
|
def _buildmatch(ctx, kindpats, globsuffix, listsubrepos, root):
|
|
|
'''Return regexp string and a matcher function for kindpats.
|
|
|
globsuffix is appended to the regexp of globs.'''
|
|
|
matchfuncs = []
|
|
|
|
|
|
subincludes, kindpats = _expandsubinclude(kindpats, root)
|
|
|
if subincludes:
|
|
|
submatchers = {}
|
|
|
def matchsubinclude(f):
|
|
|
for prefix, matcherargs in subincludes:
|
|
|
if f.startswith(prefix):
|
|
|
mf = submatchers.get(prefix)
|
|
|
if mf is None:
|
|
|
mf = match(*matcherargs)
|
|
|
submatchers[prefix] = mf
|
|
|
|
|
|
if mf(f[len(prefix):]):
|
|
|
return True
|
|
|
return False
|
|
|
matchfuncs.append(matchsubinclude)
|
|
|
|
|
|
fset, kindpats = _expandsets(kindpats, ctx, listsubrepos)
|
|
|
if fset:
|
|
|
matchfuncs.append(fset.__contains__)
|
|
|
|
|
|
regex = ''
|
|
|
if kindpats:
|
|
|
regex, mf = _buildregexmatch(kindpats, globsuffix)
|
|
|
matchfuncs.append(mf)
|
|
|
|
|
|
if len(matchfuncs) == 1:
|
|
|
return regex, matchfuncs[0]
|
|
|
else:
|
|
|
return regex, lambda f: any(mf(f) for mf in matchfuncs)
|
|
|
|
|
|
def _buildregexmatch(kindpats, globsuffix):
|
|
|
"""Build a match function from a list of kinds and kindpats,
|
|
|
return regexp string and a matcher function."""
|
|
|
try:
|
|
|
regex = '(?:%s)' % '|'.join([_regex(k, p, globsuffix)
|
|
|
for (k, p, s) in kindpats])
|
|
|
if len(regex) > 20000:
|
|
|
raise OverflowError
|
|
|
return regex, _rematcher(regex)
|
|
|
except OverflowError:
|
|
|
# We're using a Python with a tiny regex engine and we
|
|
|
# made it explode, so we'll divide the pattern list in two
|
|
|
# until it works
|
|
|
l = len(kindpats)
|
|
|
if l < 2:
|
|
|
raise
|
|
|
regexa, a = _buildregexmatch(kindpats[:l//2], globsuffix)
|
|
|
regexb, b = _buildregexmatch(kindpats[l//2:], globsuffix)
|
|
|
return regex, lambda s: a(s) or b(s)
|
|
|
except re.error:
|
|
|
for k, p, s in kindpats:
|
|
|
try:
|
|
|
_rematcher('(?:%s)' % _regex(k, p, globsuffix))
|
|
|
except re.error:
|
|
|
if s:
|
|
|
raise error.Abort(_("%s: invalid pattern (%s): %s") %
|
|
|
(s, k, p))
|
|
|
else:
|
|
|
raise error.Abort(_("invalid pattern (%s): %s") % (k, p))
|
|
|
raise error.Abort(_("invalid pattern"))
|
|
|
|
|
|
def _patternrootsanddirs(kindpats):
|
|
|
'''Returns roots and directories corresponding to each pattern.
|
|
|
|
|
|
This calculates the roots and directories exactly matching the patterns and
|
|
|
returns a tuple of (roots, dirs) for each. It does not return other
|
|
|
directories which may also need to be considered, like the parent
|
|
|
directories.
|
|
|
'''
|
|
|
r = []
|
|
|
d = []
|
|
|
for kind, pat, source in kindpats:
|
|
|
if kind == 'glob': # find the non-glob prefix
|
|
|
root = []
|
|
|
for p in pat.split('/'):
|
|
|
if '[' in p or '{' in p or '*' in p or '?' in p:
|
|
|
break
|
|
|
root.append(p)
|
|
|
r.append('/'.join(root) or '.')
|
|
|
elif kind in ('relpath', 'path'):
|
|
|
r.append(pat or '.')
|
|
|
elif kind in ('rootfilesin',):
|
|
|
d.append(pat or '.')
|
|
|
else: # relglob, re, relre
|
|
|
r.append('.')
|
|
|
return r, d
|
|
|
|
|
|
def _roots(kindpats):
|
|
|
'''Returns root directories to match recursively from the given patterns.'''
|
|
|
roots, dirs = _patternrootsanddirs(kindpats)
|
|
|
return roots
|
|
|
|
|
|
def _rootsanddirs(kindpats):
|
|
|
'''Returns roots and exact directories from patterns.
|
|
|
|
|
|
roots are directories to match recursively, whereas exact directories should
|
|
|
be matched non-recursively. The returned (roots, dirs) tuple will also
|
|
|
include directories that need to be implicitly considered as either, such as
|
|
|
parent directories.
|
|
|
|
|
|
>>> _rootsanddirs(
|
|
|
... [(b'glob', b'g/h/*', b''), (b'glob', b'g/h', b''),
|
|
|
... (b'glob', b'g*', b'')])
|
|
|
(['g/h', 'g/h', '.'], ['g', '.'])
|
|
|
>>> _rootsanddirs(
|
|
|
... [(b'rootfilesin', b'g/h', b''), (b'rootfilesin', b'', b'')])
|
|
|
([], ['g/h', '.', 'g', '.'])
|
|
|
>>> _rootsanddirs(
|
|
|
... [(b'relpath', b'r', b''), (b'path', b'p/p', b''),
|
|
|
... (b'path', b'', b'')])
|
|
|
(['r', 'p/p', '.'], ['p', '.'])
|
|
|
>>> _rootsanddirs(
|
|
|
... [(b'relglob', b'rg*', b''), (b're', b're/', b''),
|
|
|
... (b'relre', b'rr', b'')])
|
|
|
(['.', '.', '.'], ['.'])
|
|
|
'''
|
|
|
r, d = _patternrootsanddirs(kindpats)
|
|
|
|
|
|
# Append the parents as non-recursive/exact directories, since they must be
|
|
|
# scanned to get to either the roots or the other exact directories.
|
|
|
d.extend(util.dirs(d))
|
|
|
d.extend(util.dirs(r))
|
|
|
# util.dirs() does not include the root directory, so add it manually
|
|
|
d.append('.')
|
|
|
|
|
|
return r, d
|
|
|
|
|
|
def _explicitfiles(kindpats):
|
|
|
'''Returns the potential explicit filenames from the patterns.
|
|
|
|
|
|
>>> _explicitfiles([(b'path', b'foo/bar', b'')])
|
|
|
['foo/bar']
|
|
|
>>> _explicitfiles([(b'rootfilesin', b'foo/bar', b'')])
|
|
|
[]
|
|
|
'''
|
|
|
# Keep only the pattern kinds where one can specify filenames (vs only
|
|
|
# directory names).
|
|
|
filable = [kp for kp in kindpats if kp[0] not in ('rootfilesin',)]
|
|
|
return _roots(filable)
|
|
|
|
|
|
def _prefix(kindpats):
|
|
|
'''Whether all the patterns match a prefix (i.e. recursively)'''
|
|
|
for kind, pat, source in kindpats:
|
|
|
if kind not in ('path', 'relpath'):
|
|
|
return False
|
|
|
return True
|
|
|
|
|
|
_commentre = None
|
|
|
|
|
|
def readpatternfile(filepath, warn, sourceinfo=False):
|
|
|
'''parse a pattern file, returning a list of
|
|
|
patterns. These patterns should be given to compile()
|
|
|
to be validated and converted into a match function.
|
|
|
|
|
|
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
|
|
|
|
|
|
if sourceinfo is set, returns a list of tuples:
|
|
|
(pattern, lineno, originalline). This is useful to debug ignore patterns.
|
|
|
'''
|
|
|
|
|
|
syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:',
|
|
|
'include': 'include', 'subinclude': 'subinclude'}
|
|
|
syntax = 'relre:'
|
|
|
patterns = []
|
|
|
|
|
|
fp = open(filepath, 'rb')
|
|
|
for lineno, line in enumerate(util.iterfile(fp), start=1):
|
|
|
if "#" in line:
|
|
|
global _commentre
|
|
|
if not _commentre:
|
|
|
_commentre = util.re.compile(br'((?:^|[^\\])(?:\\\\)*)#.*')
|
|
|
# remove comments prefixed by an even number of escapes
|
|
|
m = _commentre.search(line)
|
|
|
if m:
|
|
|
line = line[:m.end(1)]
|
|
|
# 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:
|
|
|
if warn:
|
|
|
warn(_("%s: ignoring invalid syntax '%s'\n") %
|
|
|
(filepath, s))
|
|
|
continue
|
|
|
|
|
|
linesyntax = syntax
|
|
|
for s, rels in syntaxes.iteritems():
|
|
|
if line.startswith(rels):
|
|
|
linesyntax = rels
|
|
|
line = line[len(rels):]
|
|
|
break
|
|
|
elif line.startswith(s+':'):
|
|
|
linesyntax = rels
|
|
|
line = line[len(s) + 1:]
|
|
|
break
|
|
|
if sourceinfo:
|
|
|
patterns.append((linesyntax + line, lineno, line))
|
|
|
else:
|
|
|
patterns.append(linesyntax + line)
|
|
|
fp.close()
|
|
|
return patterns
|
|
|
|
