view hgext/largefiles/wirestore.py @ 23189:fb139f5553d6

largefiles: get function to write status messages via "getstatuswriter()"

This patch makes "updatelfiles()" get appropriate function to write
largefiles specific status messages via "getstatuswriter()".

This patch introduces None as "print messages if needed", because True
(forcibly writing) and False (forcibly ignoring) are already used for
"printmessage" of "updatelfiles".

Subsequent patch will move "avoid printing messages only while
automated committing" decision from caller of "updatelfiles()" into
"getstatuswriter()".

# Copyright 2010-2011 Fog Creek Software
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

'''largefile store working over Mercurial's wire protocol'''

import lfutil
import remotestore

class wirestore(remotestore.remotestore):
    def __init__(self, ui, repo, remote):
        cap = remote.capable('largefiles')
        if not cap:
            raise lfutil.storeprotonotcapable([])
        storetypes = cap.split(',')
        if 'serve' not in storetypes:
            raise lfutil.storeprotonotcapable(storetypes)
        self.remote = remote
        super(wirestore, self).__init__(ui, repo, remote.url())

    def _put(self, hash, fd):
        return self.remote.putlfile(hash, fd)

    def _get(self, hash):
        return self.remote.getlfile(hash)

    def _stat(self, hashes):
        '''For each hash, return 0 if it is available, other values if not.
        It is usually 2 if the largefile is missing, but might be 1 the server
        has a corrupted copy.'''
        batch = self.remote.batch()
        futures = {}
        for hash in hashes:
            futures[hash] = batch.statlfile(hash)
        batch.submit()
        retval = {}
        for hash in hashes:
            retval[hash] = futures[hash].value
        return retval