# ui.py - user interface bits for mercurial
#
# Copyright 2005, 2006 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.
from i18n import gettext as _
from demandload import *
demandload(globals(), "errno getpass os re socket sys tempfile")
demandload(globals(), "ConfigParser traceback util")
def dupconfig(orig):
new = util.configparser(orig.defaults())
updateconfig(orig, new)
return new
def updateconfig(source, dest):
for section in source.sections():
if not dest.has_section(section):
dest.add_section(section)
for name, value in source.items(section, raw=True):
dest.set(section, name, value)
class ui(object):
def __init__(self, verbose=False, debug=False, quiet=False,
interactive=True, traceback=False, parentui=None):
self.overlay = None
self.header = []
self.prev_header = []
if parentui is None:
# this is the parent of all ui children
self.parentui = None
self.readhooks = []
self.quiet = quiet
self.verbose = verbose
self.debugflag = debug
self.interactive = interactive
self.traceback = traceback
self.cdata = util.configparser()
self.readconfig(util.rcpath())
self.updateopts(verbose, debug, quiet, interactive)
else:
# parentui may point to an ui object which is already a child
self.parentui = parentui.parentui or parentui
self.readhooks = self.parentui.readhooks[:]
self.cdata = dupconfig(self.parentui.cdata)
if self.parentui.overlay:
self.overlay = dupconfig(self.parentui.overlay)
def __getattr__(self, key):
return getattr(self.parentui, key)
def updateopts(self, verbose=False, debug=False, quiet=False,
interactive=True, traceback=False, config=[]):
for section, name, value in config:
self.setconfig(section, name, value)
if quiet or verbose or debug:
self.setconfig('ui', 'quiet', str(bool(quiet)))
self.setconfig('ui', 'verbose', str(bool(verbose)))
self.setconfig('ui', 'debug', str(bool(debug)))
self.verbosity_constraints()
if not interactive:
self.setconfig('ui', 'interactive', 'False')
self.interactive = False
self.traceback = self.traceback or traceback
def verbosity_constraints(self):
self.quiet = self.configbool('ui', 'quiet')
self.verbose = self.configbool('ui', 'verbose')
self.debugflag = self.configbool('ui', 'debug')
if self.debugflag:
self.verbose = True
self.quiet = False
elif self.verbose and self.quiet:
self.quiet = self.verbose = False
def readconfig(self, fn, root=None):
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))
# override data from config files with data set with ui.setconfig
if self.overlay:
updateconfig(self.overlay, self.cdata)
if root is None:
root = os.path.expanduser('~')
self.fixconfig(root=root)
for hook in self.readhooks:
hook(self)
def addreadhook(self, hook):
self.readhooks.append(hook)
def fixconfig(self, section=None, name=None, value=None, root=None):
# translate paths relative to root (or home) into absolute paths
if section is None or section == 'paths':
if root is None:
root = os.getcwd()
items = section and [(name, value)] or []
for cdata in self.cdata, self.overlay:
if not cdata: continue
if not items and cdata.has_section('paths'):
pathsitems = cdata.items('paths')
else:
pathsitems = items
for n, path in pathsitems:
if path and "://" not in path and not os.path.isabs(path):
cdata.set("paths", n, os.path.join(root, path))
# update quiet/verbose/debug and interactive status
if section is None or section == 'ui':
if name is None or name in ('quiet', 'verbose', 'debug'):
self.verbosity_constraints()
if name is None or name == 'interactive':
self.interactive = self.configbool("ui", "interactive", True)
def setconfig(self, section, name, value):
if not self.overlay:
self.overlay = util.configparser()
for cdata in (self.overlay, self.cdata):
if not cdata.has_section(section):
cdata.add_section(section)
cdata.set(section, name, value)
self.fixconfig(section, name, value)
def _config(self, section, name, default, funcname):
if self.cdata.has_option(section, name):
try:
func = getattr(self.cdata, funcname)
return func(section, name)
except ConfigParser.InterpolationError, inst:
raise util.Abort(_("Error in configuration section [%s] "
"parameter '%s':\n%s")
% (section, name, inst))
return default
def config(self, section, name, default=None):
return self._config(section, name, default, 'get')
def configbool(self, section, name, default=False):
return self._config(section, name, default, 'getboolean')
def configlist(self, section, name, default=None):
"""Return a list of comma/space separated strings"""
result = self.config(section, name)
if result is None:
result = default or []
if isinstance(result, basestring):
result = result.replace(",", " ").split()
return result
def has_config(self, section):
'''tell whether section exists in config.'''
return self.cdata.has_section(section)
def configitems(self, section):
items = {}
if self.cdata.has_section(section):
try:
items.update(dict(self.cdata.items(section)))
except ConfigParser.InterpolationError, inst:
raise util.Abort(_("Error in configuration section [%s]:\n%s")
% (section, inst))
x = items.items()
x.sort()
return x
def walkconfig(self):
sections = self.cdata.sections()
sections.sort()
for section in sections:
for name, value in self.configitems(section):
yield section, name, value.replace('\n', '\\n')
def extensions(self):
result = self.configitems("extensions")
for i, (key, value) in enumerate(result):
if value:
result[i] = (key, os.path.expanduser(value))
return result
def hgignorefiles(self):
result = []
for key, value in self.configitems("ui"):
if key == 'ignore' or key.startswith('ignore.'):
result.append(os.path.expanduser(value))
return result
def configrevlog(self):
result = {}
for key, value in self.configitems("revlog"):
result[key.lower()] = value
return result
def username(self):
"""Return default username to be used in commits.
Searched in this order: $HGUSER, [ui] section of hgrcs, $EMAIL
and stop searching if one of these is set.
Abort if found username is an empty string to force specifying
the commit user elsewhere, e.g. with line option or repo hgrc.
If not found, use ($LOGNAME or $USER or $LNAME or
$USERNAME) +"@full.hostname".
"""
user = os.environ.get("HGUSER")
if user is None:
user = self.config("ui", "username")
if user is None:
user = os.environ.get("EMAIL")
if user is None:
try:
user = '%s@%s' % (util.getuser(), socket.getfqdn())
except KeyError:
raise util.Abort(_("Please specify a username."))
return user
def shortuser(self, user):
"""Return a short representation of a user name or email address."""
if not self.verbose: user = util.shortuser(user)
return user
def expandpath(self, loc, default=None):
"""Return repository location relative to cwd or from [paths]"""
if "://" in loc or os.path.isdir(loc):
return loc
path = self.config("paths", loc)
if not path and default is not None:
path = self.config("paths", default)
return path or loc
def write(self, *args):
if self.header:
if self.header != self.prev_header:
self.prev_header = self.header
self.write(*self.header)
self.header = []
for a in args:
sys.stdout.write(str(a))
def write_header(self, *args):
for a in args:
self.header.append(str(a))
def write_err(self, *args):
try:
if not sys.stdout.closed: sys.stdout.flush()
for a in args:
sys.stderr.write(str(a))
except IOError, inst:
if inst.errno != errno.EPIPE:
raise
def flush(self):
try: sys.stdout.flush()
except: pass
try: sys.stderr.flush()
except: pass
def readline(self):
return sys.stdin.readline()[:-1]
def prompt(self, msg, pat=None, default="y"):
if not self.interactive: return default
while 1:
self.write(msg, " ")
r = self.readline()
if not pat or re.match(pat, r):
return r
else:
self.write(_("unrecognized response\n"))
def getpass(self, prompt=None, default=None):
if not self.interactive: return default
return getpass.getpass(prompt or _('password: '))
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, user):
(fd, name) = tempfile.mkstemp(prefix="hg-editor-", suffix=".txt",
text=True)
try:
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"))
util.system("%s \"%s\"" % (editor, name),
environ={'HGUSER': user},
onerr=util.Abort, errprefix=_("edit failed"))
f = open(name)
t = f.read()
f.close()
t = re.sub("(?m)^HG:.*\n", "", t)
finally:
os.unlink(name)
return t
def print_exc(self):
'''print exception traceback if traceback printing enabled.
only to call in exception handler. returns true if traceback
printed.'''
if self.traceback:
traceback.print_exc()
return self.traceback