--- a/mercurial/peer.py Wed Apr 11 12:49:08 2018 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,100 +0,0 @@
-# peer.py - repository base classes for mercurial
-#
-# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
-# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
-#
-# 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
-
-from . import (
- error,
- pycompat,
- util,
-)
-
-# abstract batching support
-
-class future(object):
- '''placeholder for a value to be set later'''
- def set(self, value):
- if util.safehasattr(self, 'value'):
- raise error.RepoError("future is already set")
- self.value = value
-
-class batcher(object):
- '''base class for batches of commands submittable in a single request
-
- All methods invoked on instances of this class are simply queued and
- return a a future for the result. Once you call submit(), all the queued
- calls are performed and the results set in their respective futures.
- '''
- def __init__(self):
- self.calls = []
- def __getattr__(self, name):
- def call(*args, **opts):
- resref = future()
- # Please don't invent non-ascii method names, or you will
- # give core hg a very sad time.
- self.calls.append((name.encode('ascii'), args, opts, resref,))
- return resref
- return call
- def submit(self):
- raise NotImplementedError()
-
-class iterbatcher(batcher):
-
- def submit(self):
- raise NotImplementedError()
-
- def results(self):
- raise NotImplementedError()
-
-class localiterbatcher(iterbatcher):
- def __init__(self, local):
- super(iterbatcher, self).__init__()
- self.local = local
-
- def submit(self):
- # submit for a local iter batcher is a noop
- pass
-
- def results(self):
- for name, args, opts, resref in self.calls:
- resref.set(getattr(self.local, name)(*args, **opts))
- yield resref.value
-
-def batchable(f):
- '''annotation for batchable methods
-
- Such methods must implement a coroutine as follows:
-
- @batchable
- def sample(self, one, two=None):
- # Build list of encoded arguments suitable for your wire protocol:
- encargs = [('one', encode(one),), ('two', encode(two),)]
- # Create future for injection of encoded result:
- encresref = future()
- # Return encoded arguments and future:
- yield encargs, encresref
- # Assuming the future to be filled with the result from the batched
- # request now. Decode it:
- yield decode(encresref.value)
-
- The decorator returns a function which wraps this coroutine as a plain
- method, but adds the original method as an attribute called "batchable",
- which is used by remotebatch to split the call into separate encoding and
- decoding phases.
- '''
- def plain(*args, **opts):
- batchable = f(*args, **opts)
- encargsorres, encresref = next(batchable)
- if not encresref:
- return encargsorres # a local result in this case
- self = args[0]
- cmd = pycompat.bytesurl(f.__name__) # ensure cmd is ascii bytestr
- encresref.set(self._submitone(cmd, encargsorres))
- return next(batchable)
- setattr(plain, 'batchable', f)
- return plain