i18n: get datapath directly from resourceutil

The new resourceutil module is lower in the dependency graph, so we
can depend directly on it and won't have to depend on the util module
to inject the datapath.

Differential Revision: https://phab.mercurial-scm.org/D7435

doc/gendoc.py

@@ -26,11 +26,7 b' sys.path.insert(0, "..")'
 from mercurial import demandimport
 
 demandimport.enable()
-# Load util so that the locale path is set by i18n.setdatapath() before
-# calling _().
-from mercurial import util
 
-util.datapath
 from mercurial import (
     commands,
     encoding,

mercurial/i18n.py

@@ -13,6 +13,7 b' import os'
 import sys
 
 from .pycompat import getattr
+from .utils import resourceutil
 from . import (
     encoding,
     pycompat,
@@ -45,14 +46,10 b' if ('
         # ctypes not found or unknown langid
         pass
 
-_ugettext = None
 
-
-def setdatapath(datapath):
-    datapath = pycompat.fsdecode(datapath)
+datapath = pycompat.fsdecode(resourceutil.datapath)
     localedir = os.path.join(datapath, 'locale')
     t = gettextmod.translation('hg', localedir, _languages, fallback=True)
-    global _ugettext
     try:
         _ugettext = t.ugettext
     except AttributeError:

mercurial/util.py

@@ -1824,7 +1824,6 b' def pathto(root, n1, n2):'
 
 
 datapath = resourceutil.datapath
-i18n.setdatapath(datapath)
 
 
 def checksignature(func):