changegroup: cg3 has two empty groups *after* manifests
changegroup.getchunks() determines the end of the stream by looking
for an empty chunk group (two consecutive empty chunks). It ignores
empty groups in the first two groups. Changegroup 3 introduced an
empty chunk between the manifests and the files, which confuses
getchunks(). Since it comes after the first two, getchunks() will stop
there.
Fix by rewriting getchunks so it first counts two groups (empty or
not) and then keeps antostarts counting empty groups. With this counting,
changegroup 1 and 2 have exactly one empty group after the first two
groups, while changegroup 3 has two (one for directories and one for
files).
It's a little hard to test this at this point, but I have verified
that this patch fixes narrowhg (which was broken before this
patch). Also, future patches will fix "hg strip" with treemanifests,
and once that's done, getchunks() will be tested through tests of "hg
strip".
# formatter.py - generic output formatting for mercurial
#
# Copyright 2012 Matt Mackall <mpm@selenic.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
import cPickle
import os
from .i18n import _
from .node import (
hex,
short,
)
from . import (
encoding,
error,
templater,
)
class baseformatter(object):
def __init__(self, ui, topic, opts):
self._ui = ui
self._topic = topic
self._style = opts.get("style")
self._template = opts.get("template")
self._item = None
# function to convert node to string suitable for this output
self.hexfunc = hex
def __nonzero__(self):
'''return False if we're not doing real templating so we can
skip extra work'''
return True
def _showitem(self):
'''show a formatted item once all data is collected'''
pass
def startitem(self):
'''begin an item in the format list'''
if self._item is not None:
self._showitem()
self._item = {}
def data(self, **data):
'''insert data into item that's not shown in default output'''
self._item.update(data)
def write(self, fields, deftext, *fielddata, **opts):
'''do default text output while assigning data to item'''
fieldkeys = fields.split()
assert len(fieldkeys) == len(fielddata)
self._item.update(zip(fieldkeys, fielddata))
def condwrite(self, cond, fields, deftext, *fielddata, **opts):
'''do conditional write (primarily for plain formatter)'''
fieldkeys = fields.split()
assert len(fieldkeys) == len(fielddata)
self._item.update(zip(fieldkeys, fielddata))
def plain(self, text, **opts):
'''show raw text for non-templated mode'''
pass
def end(self):
'''end output for the formatter'''
if self._item is not None:
self._showitem()
class plainformatter(baseformatter):
'''the default text output scheme'''
def __init__(self, ui, topic, opts):
baseformatter.__init__(self, ui, topic, opts)
if ui.debugflag:
self.hexfunc = hex
else:
self.hexfunc = short
def __nonzero__(self):
return False
def startitem(self):
pass
def data(self, **data):
pass
def write(self, fields, deftext, *fielddata, **opts):
self._ui.write(deftext % fielddata, **opts)
def condwrite(self, cond, fields, deftext, *fielddata, **opts):
'''do conditional write'''
if cond:
self._ui.write(deftext % fielddata, **opts)
def plain(self, text, **opts):
self._ui.write(text, **opts)
def end(self):
pass
class debugformatter(baseformatter):
def __init__(self, ui, topic, opts):
baseformatter.__init__(self, ui, topic, opts)
self._ui.write("%s = [\n" % self._topic)
def _showitem(self):
self._ui.write(" " + repr(self._item) + ",\n")
def end(self):
baseformatter.end(self)
self._ui.write("]\n")
class pickleformatter(baseformatter):
def __init__(self, ui, topic, opts):
baseformatter.__init__(self, ui, topic, opts)
self._data = []
def _showitem(self):
self._data.append(self._item)
def end(self):
baseformatter.end(self)
self._ui.write(cPickle.dumps(self._data))
def _jsonifyobj(v):
if isinstance(v, tuple):
return '[' + ', '.join(_jsonifyobj(e) for e in v) + ']'
elif v is None:
return 'null'
elif v is True:
return 'true'
elif v is False:
return 'false'
elif isinstance(v, (int, float)):
return str(v)
else:
return '"%s"' % encoding.jsonescape(v)
class jsonformatter(baseformatter):
def __init__(self, ui, topic, opts):
baseformatter.__init__(self, ui, topic, opts)
self._ui.write("[")
self._ui._first = True
def _showitem(self):
if self._ui._first:
self._ui._first = False
else:
self._ui.write(",")
self._ui.write("\n {\n")
first = True
for k, v in sorted(self._item.items()):
if first:
first = False
else:
self._ui.write(",\n")
self._ui.write(' "%s": %s' % (k, _jsonifyobj(v)))
self._ui.write("\n }")
def end(self):
baseformatter.end(self)
self._ui.write("\n]\n")
class templateformatter(baseformatter):
def __init__(self, ui, topic, opts):
baseformatter.__init__(self, ui, topic, opts)
self._topic = topic
self._t = gettemplater(ui, topic, opts.get('template', ''))
def _showitem(self):
g = self._t(self._topic, **self._item)
self._ui.write(templater.stringify(g))
def lookuptemplate(ui, topic, tmpl):
# looks like a literal template?
if '{' in tmpl:
return tmpl, None
# perhaps a stock style?
if not os.path.split(tmpl)[0]:
mapname = (templater.templatepath('map-cmdline.' + tmpl)
or templater.templatepath(tmpl))
if mapname and os.path.isfile(mapname):
return None, mapname
# perhaps it's a reference to [templates]
t = ui.config('templates', tmpl)
if t:
try:
tmpl = templater.unquotestring(t)
except SyntaxError:
tmpl = t
return tmpl, None
if tmpl == 'list':
ui.write(_("available styles: %s\n") % templater.stylelist())
raise error.Abort(_("specify a template"))
# perhaps it's a path to a map or a template
if ('/' in tmpl or '\\' in tmpl) and os.path.isfile(tmpl):
# is it a mapfile for a style?
if os.path.basename(tmpl).startswith("map-"):
return None, os.path.realpath(tmpl)
tmpl = open(tmpl).read()
return tmpl, None
# constant string?
return tmpl, None
def gettemplater(ui, topic, spec):
tmpl, mapfile = lookuptemplate(ui, topic, spec)
t = templater.templater(mapfile, {})
if tmpl:
t.cache[topic] = tmpl
return t
def formatter(ui, topic, opts):
template = opts.get("template", "")
if template == "json":
return jsonformatter(ui, topic, opts)
elif template == "pickle":
return pickleformatter(ui, topic, opts)
elif template == "debug":
return debugformatter(ui, topic, opts)
elif template != "":
return templateformatter(ui, topic, opts)
# developer config: ui.formatdebug
elif ui.configbool('ui', 'formatdebug'):
return debugformatter(ui, topic, opts)
# deprecated config: ui.formatjson
elif ui.configbool('ui', 'formatjson'):
return jsonformatter(ui, topic, opts)
return plainformatter(ui, topic, opts)