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