absorb: make it explicit if empty changeset was created
If the config rewrite.empty-successor=skip is set, a message "became empty and
was dropped" is shown if the changeset became empty. If the config
rewrite.empty-successor=keep is set, absorb may create changesets even if they
became empty. It’s probably a good idea to make that explicit. Therefore the
message is changed to be a combination of both: "became empty and became ...".
Repeating the word "became" is not very elegant. This results from the fact
that "became" was and is overloaded to indicate both the change from non-empty
to empty and the successor relation. In the combinated message, both meanings
are used in one sentence.
from __future__ import absolute_import, print_function
import sys
from mercurial import (
error,
pycompat,
ui as uimod,
util,
wireprototypes,
wireprotov1peer,
wireprotov1server,
)
from mercurial.utils import stringutil
stringio = util.stringio
class proto(object):
def __init__(self, args):
self.args = args
self.name = 'dummyproto'
def getargs(self, spec):
args = self.args
args.setdefault(b'*', {})
names = spec.split()
return [args[n] for n in names]
def checkperm(self, perm):
pass
wireprototypes.TRANSPORTS['dummyproto'] = {
'transport': 'dummy',
'version': 1,
}
class clientpeer(wireprotov1peer.wirepeer):
def __init__(self, serverrepo, ui):
self.serverrepo = serverrepo
self.ui = ui
def url(self):
return b'test'
def local(self):
return None
def peer(self):
return self
def canpush(self):
return True
def close(self):
pass
def capabilities(self):
return [b'batch']
def _call(self, cmd, **args):
args = pycompat.byteskwargs(args)
res = wireprotov1server.dispatch(self.serverrepo, proto(args), cmd)
if isinstance(res, wireprototypes.bytesresponse):
return res.data
elif isinstance(res, bytes):
return res
else:
raise error.Abort('dummy client does not support response type')
def _callstream(self, cmd, **args):
return stringio(self._call(cmd, **args))
@wireprotov1peer.batchable
def greet(self, name):
f = wireprotov1peer.future()
yield {b'name': mangle(name)}, f
yield unmangle(f.value)
class serverrepo(object):
def __init__(self, ui):
self.ui = ui
def greet(self, name):
return b"Hello, " + name
def filtered(self, name):
return self
def mangle(s):
return b''.join(pycompat.bytechr(ord(c) + 1) for c in pycompat.bytestr(s))
def unmangle(s):
return b''.join(pycompat.bytechr(ord(c) - 1) for c in pycompat.bytestr(s))
def greet(repo, proto, name):
return mangle(repo.greet(unmangle(name)))
wireprotov1server.commands[b'greet'] = (greet, b'name')
srv = serverrepo(uimod.ui())
clt = clientpeer(srv, uimod.ui())
def printb(data, end=b'\n'):
out = getattr(sys.stdout, 'buffer', sys.stdout)
out.write(data + end)
out.flush()
printb(clt.greet(b"Foobar"))
with clt.commandexecutor() as e:
fgreet1 = e.callcommand(b'greet', {b'name': b'Fo, =;:<o'})
fgreet2 = e.callcommand(b'greet', {b'name': b'Bar'})
printb(
stringutil.pprint([f.result() for f in (fgreet1, fgreet2)], bprefix=True)
)