comparison mercurial/fileset.py @ 38684:07b551a4df44

fileset: add helpers to make predicatematcher and nevermatcher

These functions will be used to compose a tree of matchers from a fileset
expression.

38683:ddd2165438cd

# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from __future__ import absolute_import

import re

from .i18n import _
from . import (
    error,

        self._status = status
        self._badfn = badfn
        self._existingenabled = False
    def status(self):
        return self._status
    def matcher(self, patterns):
        return self.ctx.match(patterns, badfn=self._badfn)
    def filter(self, files):
        return [f for f in files if f in self.subset]
    def existing(self):
        if not self._existingenabled:
            raise error.ProgrammingError('unexpected existing() invocation')

38684:07b551a4df44

# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from __future__ import absolute_import

import errno
import re

from .i18n import _
from . import (
    error,

        self._status = status
        self._badfn = badfn
        self._existingenabled = False
    def status(self):
        return self._status

    def matcher(self, patterns):
        return self.ctx.match(patterns, badfn=self._badfn)

    def predicate(self, predfn, predrepr=None, cache=False):
        """Create a matcher to select files by predfn(filename)"""
        if cache:
            predfn = util.cachefunc(predfn)
        repo = self.ctx.repo()
        return matchmod.predicatematcher(repo.root, repo.getcwd(), predfn,
                                         predrepr=predrepr, badfn=self._badfn)

    def fpredicate(self, predfn, predrepr=None, cache=False):
        """Create a matcher to select files by predfn(fctx) at the current
        revision

        Missing files are ignored.
        """
        ctx = self.ctx
        if ctx.rev() is None:
            def fctxpredfn(f):
                try:
                    fctx = ctx[f]
                except error.LookupError:
                    return False
                try:
                    fctx.audit()
                except error.Abort:
                    return False
                try:
                    return predfn(fctx)
                except (IOError, OSError) as e:
                    if e.errno in (errno.ENOENT, errno.ENOTDIR, errno.EISDIR):
                        return False
                    raise
        else:
            def fctxpredfn(f):
                try:
                    fctx = ctx[f]
                except error.LookupError:
                    return False
                return predfn(fctx)
        return self.predicate(fctxpredfn, predrepr=predrepr, cache=cache)

    def never(self):
        """Create a matcher to select nothing"""
        repo = self.ctx.repo()
        return matchmod.nevermatcher(repo.root, repo.getcwd(),
                                     badfn=self._badfn)

    def filter(self, files):
        return [f for f in files if f in self.subset]
    def existing(self):
        if not self._existingenabled:
            raise error.ProgrammingError('unexpected existing() invocation')