Inherit config from real parentui and don't use ConfigParser internals.
Added comments for the meaning of parentui.
# ui.py - user interface bits for mercurial
#
# Copyright 2005 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
import ConfigParser
from i18n import gettext as _
from demandload import *
demandload(globals(), "os re socket sys util")
class ui(object):
def __init__(self, verbose=False, debug=False, quiet=False,
interactive=True, parentui=None):
self.overlay = {}
if parentui is None:
# this is the parent of all ui children
self.parentui = None
self.cdata = ConfigParser.SafeConfigParser()
self.readconfig(util.rcpath)
self.quiet = self.configbool("ui", "quiet")
self.verbose = self.configbool("ui", "verbose")
self.debugflag = self.configbool("ui", "debug")
self.interactive = self.configbool("ui", "interactive", True)
self.updateopts(verbose, debug, quiet, interactive)
self.diffcache = None
else:
# parentui may point to an ui object which is already a child
self.parentui = parentui.parentui or parentui
parent_cdata = self.parentui.cdata
self.cdata = ConfigParser.SafeConfigParser(parent_cdata.defaults())
# make interpolation work
for section in parent_cdata.sections():
self.cdata.add_section(section)
for name, value in parent_cdata.items(section, raw=True):
self.cdata.set(section, name, value)
def __getattr__(self, key):
return getattr(self.parentui, key)
def updateopts(self, verbose=False, debug=False, quiet=False,
interactive=True):
self.quiet = (self.quiet or quiet) and not verbose and not debug
self.verbose = (self.verbose or verbose) or debug
self.debugflag = (self.debugflag or debug)
self.interactive = (self.interactive and interactive)
def readconfig(self, fn):
if isinstance(fn, basestring):
fn = [fn]
for f in fn:
try:
self.cdata.read(f)
except ConfigParser.ParsingError, inst:
raise util.Abort(_("Failed to parse %s\n%s") % (f, inst))
def setconfig(self, section, name, val):
self.overlay[(section, name)] = val
def config(self, section, name, default=None):
if self.overlay.has_key((section, name)):
return self.overlay[(section, name)]
if self.cdata.has_option(section, name):
return self.cdata.get(section, name)
if self.parentui is None:
return default
else:
return self.parentui.config(section, name, default)
def configbool(self, section, name, default=False):
if self.overlay.has_key((section, name)):
return self.overlay[(section, name)]
if self.cdata.has_option(section, name):
return self.cdata.getboolean(section, name)
if self.parentui is None:
return default
else:
return self.parentui.configbool(section, name, default)
def configitems(self, section):
items = {}
if self.parentui is not None:
items = dict(self.parentui.configitems(section))
if self.cdata.has_section(section):
items.update(dict(self.cdata.items(section)))
x = items.items()
x.sort()
return x
def walkconfig(self, seen=None):
if seen is None:
seen = {}
for (section, name), value in self.overlay.iteritems():
yield section, name, value
seen[section, name] = 1
for section in self.cdata.sections():
for name, value in self.cdata.items(section):
if (section, name) in seen: continue
yield section, name, value.replace('\n', '\\n')
seen[section, name] = 1
if self.parentui is not None:
for parent in self.parentui.walkconfig(seen):
yield parent
def extensions(self):
return self.configitems("extensions")
def diffopts(self):
if self.diffcache:
return self.diffcache
ret = { 'showfunc' : True, 'ignorews' : False}
for x in self.configitems("diff"):
k = x[0].lower()
v = x[1]
if v:
v = v.lower()
if v == 'true':
value = True
else:
value = False
ret[k] = value
self.diffcache = ret
return ret
def username(self):
return (os.environ.get("HGUSER") or
self.config("ui", "username") or
os.environ.get("EMAIL") or
(os.environ.get("LOGNAME",
os.environ.get("USERNAME", "unknown"))
+ '@' + socket.getfqdn()))
def shortuser(self, user):
"""Return a short representation of a user name or email address."""
if not self.verbose:
f = user.find('@')
if f >= 0:
user = user[:f]
f = user.find('<')
if f >= 0:
user = user[f+1:]
return user
def expandpath(self, loc, root=""):
paths = {}
for name, path in self.configitems("paths"):
m = path.find("://")
if m == -1:
path = os.path.join(root, path)
paths[name] = path
return paths.get(loc, loc)
def write(self, *args):
for a in args:
sys.stdout.write(str(a))
def write_err(self, *args):
if not sys.stdout.closed: sys.stdout.flush()
for a in args:
sys.stderr.write(str(a))
def flush(self):
try:
sys.stdout.flush()
finally:
sys.stderr.flush()
def readline(self):
return sys.stdin.readline()[:-1]
def prompt(self, msg, pat, default="y"):
if not self.interactive: return default
while 1:
self.write(msg, " ")
r = self.readline()
if re.match(pat, r):
return r
else:
self.write(_("unrecognized response\n"))
def status(self, *msg):
if not self.quiet: self.write(*msg)
def warn(self, *msg):
self.write_err(*msg)
def note(self, *msg):
if self.verbose: self.write(*msg)
def debug(self, *msg):
if self.debugflag: self.write(*msg)
def edit(self, text):
import tempfile
(fd, name) = tempfile.mkstemp("hg")
f = os.fdopen(fd, "w")
f.write(text)
f.close()
editor = (os.environ.get("HGEDITOR") or
self.config("ui", "editor") or
os.environ.get("EDITOR", "vi"))
os.environ["HGUSER"] = self.username()
util.system("%s \"%s\"" % (editor, name), errprefix=_("edit failed"))
t = open(name).read()
t = re.sub("(?m)^HG:.*\n", "", t)
os.unlink(name)
return t