view hgext/largefiles/uisetup.py @ 25912:cbbdd085c991

batching: migrate basic noop batching into peer.peer

"Real" batching only makes sense for wirepeers, but it greatly
simplifies the clients of peer instances if they can be ignorant to
actual batching capabilities of that peer. By moving the
not-really-batched batching code into peer.peer, all peer instances
now work with the batching API, thus simplifying users.

This leaves a couple of name forwards in wirepeer.py. Originally I had
planned to clean those up, but it kind of unclarifies other bits of
code that want to use batching, so I think it makes sense for the
names to stay exposed by wireproto. Specifically, almost nothing is
currently aware of peer (see largefiles.proto for an example), so
making them be aware of the peer module *and* the wireproto module
seems like some abstraction leakage. I *think* the right long-term fix
would actually be to make wireproto an implementation detail that
clients wouldn't need to know about, but I don't really know what that
would entail at the moment.

As far as I'm aware, no clients of batching in third-party extensions
will need updating, which is nice icing.

# 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.

'''setup for largefiles extension: uisetup'''

from mercurial import archival, cmdutil, commands, extensions, filemerge, hg, \
    httppeer, merge, scmutil, sshpeer, wireproto, revset, subrepo, copies
from mercurial.i18n import _
from mercurial.hgweb import hgweb_mod, webcommands

import overrides
import proto

def uisetup(ui):
    # Disable auto-status for some commands which assume that all
    # files in the result are under Mercurial's control

    entry = extensions.wrapcommand(commands.table, 'add',
                                   overrides.overrideadd)
    addopt = [('', 'large', None, _('add as largefile')),
              ('', 'normal', None, _('add as normal file')),
              ('', 'lfsize', '', _('add all files above this size '
                                   '(in megabytes) as largefiles '
                                   '(default: 10)'))]
    entry[1].extend(addopt)

    # The scmutil function is called both by the (trivial) addremove command,
    # and in the process of handling commit -A (issue3542)
    entry = extensions.wrapfunction(scmutil, 'addremove',
                                    overrides.scmutiladdremove)
    extensions.wrapfunction(cmdutil, 'add', overrides.cmdutiladd)
    extensions.wrapfunction(cmdutil, 'remove', overrides.cmdutilremove)
    extensions.wrapfunction(cmdutil, 'forget', overrides.cmdutilforget)

    extensions.wrapfunction(copies, 'pathcopies', overrides.copiespathcopies)

    # Subrepos call status function
    entry = extensions.wrapcommand(commands.table, 'status',
                                   overrides.overridestatus)
    entry = extensions.wrapfunction(subrepo.hgsubrepo, 'status',
                                    overrides.overridestatusfn)

    entry = extensions.wrapcommand(commands.table, 'log',
                                   overrides.overridelog)
    entry = extensions.wrapcommand(commands.table, 'rollback',
                                   overrides.overriderollback)
    entry = extensions.wrapcommand(commands.table, 'verify',
                                   overrides.overrideverify)

    verifyopt = [('', 'large', None,
                  _('verify that all largefiles in current revision exists')),
                 ('', 'lfa', None,
                  _('verify largefiles in all revisions, not just current')),
                 ('', 'lfc', None,
                  _('verify local largefile contents, not just existence'))]
    entry[1].extend(verifyopt)

    entry = extensions.wrapcommand(commands.table, 'debugstate',
                                   overrides.overridedebugstate)
    debugstateopt = [('', 'large', None, _('display largefiles dirstate'))]
    entry[1].extend(debugstateopt)

    outgoing = lambda orgfunc, *arg, **kwargs: orgfunc(*arg, **kwargs)
    entry = extensions.wrapcommand(commands.table, 'outgoing', outgoing)
    outgoingopt = [('', 'large', None, _('display outgoing largefiles'))]
    entry[1].extend(outgoingopt)
    cmdutil.outgoinghooks.add('largefiles', overrides.outgoinghook)
    entry = extensions.wrapcommand(commands.table, 'summary',
                                   overrides.overridesummary)
    summaryopt = [('', 'large', None, _('display outgoing largefiles'))]
    entry[1].extend(summaryopt)
    cmdutil.summaryremotehooks.add('largefiles', overrides.summaryremotehook)

    entry = extensions.wrapcommand(commands.table, 'pull',
                                   overrides.overridepull)
    pullopt = [('', 'all-largefiles', None,
                 _('download all pulled versions of largefiles (DEPRECATED)')),
               ('', 'lfrev', [],
                _('download largefiles for these revisions'), _('REV'))]
    entry[1].extend(pullopt)
    revset.symbols['pulled'] = overrides.pulledrevsetsymbol

    entry = extensions.wrapcommand(commands.table, 'clone',
                                   overrides.overrideclone)
    cloneopt = [('', 'all-largefiles', None,
                 _('download all versions of all largefiles'))]
    entry[1].extend(cloneopt)
    entry = extensions.wrapfunction(hg, 'clone', overrides.hgclone)

    entry = extensions.wrapcommand(commands.table, 'cat',
                                   overrides.overridecat)
    entry = extensions.wrapfunction(merge, '_checkunknownfile',
                                    overrides.overridecheckunknownfile)
    entry = extensions.wrapfunction(merge, 'calculateupdates',
                                    overrides.overridecalculateupdates)
    entry = extensions.wrapfunction(merge, 'recordupdates',
                                    overrides.mergerecordupdates)
    entry = extensions.wrapfunction(merge, 'update',
                                    overrides.mergeupdate)
    entry = extensions.wrapfunction(filemerge, 'filemerge',
                                    overrides.overridefilemerge)
    entry = extensions.wrapfunction(cmdutil, 'copy',
                                    overrides.overridecopy)

    # Summary calls dirty on the subrepos
    entry = extensions.wrapfunction(subrepo.hgsubrepo, 'dirty',
                                    overrides.overridedirty)

    entry = extensions.wrapfunction(cmdutil, 'revert',
                                    overrides.overriderevert)

    extensions.wrapcommand(commands.table, 'archive',
                           overrides.overridearchivecmd)
    extensions.wrapfunction(archival, 'archive', overrides.overridearchive)
    extensions.wrapfunction(subrepo.hgsubrepo, 'archive',
                            overrides.hgsubrepoarchive)
    extensions.wrapfunction(cmdutil, 'bailifchanged',
                            overrides.overridebailifchanged)

    extensions.wrapfunction(scmutil, 'marktouched',
                            overrides.scmutilmarktouched)

    # create the new wireproto commands ...
    wireproto.commands['putlfile'] = (proto.putlfile, 'sha')
    wireproto.commands['getlfile'] = (proto.getlfile, 'sha')
    wireproto.commands['statlfile'] = (proto.statlfile, 'sha')

    # ... and wrap some existing ones
    wireproto.commands['capabilities'] = (proto.capabilities, '')
    wireproto.commands['heads'] = (proto.heads, '')
    wireproto.commands['lheads'] = (wireproto.heads, '')

    # make putlfile behave the same as push and {get,stat}lfile behave
    # the same as pull w.r.t. permissions checks
    hgweb_mod.perms['putlfile'] = 'push'
    hgweb_mod.perms['getlfile'] = 'pull'
    hgweb_mod.perms['statlfile'] = 'pull'

    extensions.wrapfunction(webcommands, 'decodepath', overrides.decodepath)

    # the hello wireproto command uses wireproto.capabilities, so it won't see
    # our largefiles capability unless we replace the actual function as well.
    proto.capabilitiesorig = wireproto.capabilities
    wireproto.capabilities = proto.capabilities

    # can't do this in reposetup because it needs to have happened before
    # wirerepo.__init__ is called
    proto.ssholdcallstream = sshpeer.sshpeer._callstream
    proto.httpoldcallstream = httppeer.httppeer._callstream
    sshpeer.sshpeer._callstream = proto.sshrepocallstream
    httppeer.httppeer._callstream = proto.httprepocallstream

    # override some extensions' stuff as well
    for name, module in extensions.extensions():
        if name == 'purge':
            extensions.wrapcommand(getattr(module, 'cmdtable'), 'purge',
                overrides.overridepurge)
        if name == 'rebase':
            extensions.wrapcommand(getattr(module, 'cmdtable'), 'rebase',
                overrides.overriderebase)
            extensions.wrapfunction(module, 'rebase',
                                    overrides.overriderebase)
        if name == 'transplant':
            extensions.wrapcommand(getattr(module, 'cmdtable'), 'transplant',
                overrides.overridetransplant)