view hgext/largefiles/localstore.py @ 24778:a48b65ab428d

subrepo: add include/exclude support for diffing git subrepos

Previously, git subrepos were ignored if any type of path selection
was done.
This can be solved by using subrepo status and filtering matching files.

# Copyright 2009-2010 Gregory P. Ward
# Copyright 2009-2010 Intelerad Medical Systems Incorporated
# Copyright 2010-2011 Fog Creek Software
# Copyright 2010-2011 Unity Technologies
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

'''store class for local filesystem'''

from mercurial.i18n import _

import lfutil
import basestore

class localstore(basestore.basestore):
    '''localstore first attempts to grab files out of the store in the remote
    Mercurial repository.  Failing that, it attempts to grab the files from
    the user cache.'''

    def __init__(self, ui, repo, remote):
        self.remote = remote.local()
        super(localstore, self).__init__(ui, repo, self.remote.url())

    def put(self, source, hash):
        if lfutil.instore(self.remote, hash):
            return
        lfutil.link(source, lfutil.storepath(self.remote, hash))

    def exists(self, hashes):
        retval = {}
        for hash in hashes:
            retval[hash] = lfutil.instore(self.remote, hash)
        return retval


    def _getfile(self, tmpfile, filename, hash):
        path = lfutil.findfile(self.remote, hash)
        if not path:
            raise basestore.StoreError(filename, hash, self.url,
                _("can't get file locally"))
        fd = open(path, 'rb')
        try:
            return lfutil.copyandhash(fd, tmpfile)
        finally:
            fd.close()

    def _verifyfile(self, cctx, cset, contents, standin, verified):
        filename = lfutil.splitstandin(standin)
        if not filename:
            return False
        fctx = cctx[standin]
        key = (filename, fctx.filenode())
        if key in verified:
            return False

        expecthash = fctx.data()[0:40]
        storepath, exists = lfutil.findstorepath(self.remote, expecthash)
        verified.add(key)
        if not exists:
            self.ui.warn(
                _('changeset %s: %s references missing %s\n')
                % (cset, filename, storepath))
            return True                 # failed

        if contents:
            actualhash = lfutil.hashfile(storepath)
            if actualhash != expecthash:
                self.ui.warn(
                    _('changeset %s: %s references corrupted %s\n')
                    % (cset, filename, storepath))
                return True             # failed
        return False