Mercurial > hg
view mercurial/ui.py @ 8189:d2899a856f9f
ui: replace parentui mechanism with repo.baseui
author | Matt Mackall <mpm@selenic.com> |
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date | Sun, 26 Apr 2009 16:50:43 -0500 |
parents | d2504744e7a5 |
children | 9b8ac5fb7760 |
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# ui.py - user interface bits for mercurial # # Copyright 2005-2007 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 _ import errno, getpass, os, re, socket, sys, tempfile import config, traceback, util, error _booleans = {'1':True, 'yes':True, 'true':True, 'on':True, '0':False, 'no':False, 'false':False, 'off':False} class ui(object): def __init__(self, parentui=None): self.buffers = [] self.quiet = self.verbose = self.debugflag = self.traceback = False self.interactive = self.report_untrusted = True self.overlay = config.config() self.cdata = config.config() self.ucdata = config.config() self.trusted_users = {} self.trusted_groups = {} if parentui: self.cdata = parentui.cdata.copy() self.ucdata = parentui.ucdata.copy() self.overlay = parentui.overlay.copy() self.trusted_users = parentui.trusted_users.copy() self.trusted_groups = parentui.trusted_groups.copy() self.fixconfig() else: # we always trust global config files for f in util.rcpath(): self.readconfig(f, assumetrusted=True) def copy(self): return ui(self) _isatty = None def isatty(self): if ui._isatty is None: try: ui._isatty = sys.stdin.isatty() except AttributeError: # not a real file object ui._isatty = False except IOError: # access to stdin is unsafe in a WSGI environment ui._isatty = False return ui._isatty def _is_trusted(self, fp, f): st = util.fstat(fp) if util.isowner(fp, st): return True tusers = self.trusted_users tgroups = self.trusted_groups if '*' in tusers or '*' in tgroups: return True user = util.username(st.st_uid) group = util.groupname(st.st_gid) if user in tusers or group in tgroups or user == util.username(): return True if self.report_untrusted: self.warn(_('Not trusting file %s from untrusted ' 'user %s, group %s\n') % (f, user, group)) return False def readconfig(self, filename, root=None, assumetrusted=False, sections = None): try: fp = open(filename) except IOError: if not sections: # ignore unless we were looking for something return raise cdata = config.config() trusted = sections or assumetrusted or self._is_trusted(fp, filename) try: cdata.read(filename, fp) except error.ConfigError, inst: if trusted: raise self.warn(_("Ignored: %s\n") % str(inst)) if trusted: self.cdata.update(cdata, sections) self.cdata.update(self.overlay, sections) self.ucdata.update(cdata, sections) self.ucdata.update(self.overlay, sections) if root is None: root = os.path.expanduser('~') self.fixconfig(root=root) 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.ucdata, self.overlay: if not items and 'paths' in cdata: 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.normpath(os.path.join(root, path))) # update ui options if section is None or section == 'ui': self.debugflag = self.configbool('ui', 'debug') self.verbose = self.debugflag or self.configbool('ui', 'verbose') self.quiet = not self.debugflag and self.configbool('ui', 'quiet') if self.verbose and self.quiet: self.quiet = self.verbose = False self.report_untrusted = self.configbool("ui", "report_untrusted", True) self.interactive = self.configbool("ui", "interactive", self.isatty()) self.traceback = self.configbool('ui', 'traceback', False) # update trust information if section is None or section == 'trusted': for user in self.configlist('trusted', 'users'): self.trusted_users[user] = 1 for group in self.configlist('trusted', 'groups'): self.trusted_groups[group] = 1 def setconfig(self, section, name, value): for cdata in (self.overlay, self.cdata, self.ucdata): cdata.set(section, name, value) self.fixconfig(section, name, value) def _get_cdata(self, untrusted): if untrusted: return self.ucdata return self.cdata def configsource(self, section, name, untrusted=False): return self._get_cdata(untrusted).getsource(section, name) or 'none' def config(self, section, name, default=None, untrusted=False): value = self._get_cdata(untrusted).get(section, name, default) if self.debugflag and not untrusted: uvalue = self.ucdata.get(section, name) if uvalue is not None and uvalue != value: self.warn(_("Ignoring untrusted configuration option " "%s.%s = %s\n") % (section, name, uvalue)) return value def configbool(self, section, name, default=False, untrusted=False): v = self.config(section, name, None, untrusted) if v == None: return default if v.lower() not in _booleans: raise error.ConfigError(_("%s.%s not a boolean ('%s')") % (section, name, v)) return _booleans[v.lower()] def configlist(self, section, name, default=None, untrusted=False): """Return a list of comma/space separated strings""" result = self.config(section, name, untrusted=untrusted) if result is None: result = default or [] if isinstance(result, basestring): result = result.replace(",", " ").split() return result def has_section(self, section, untrusted=False): '''tell whether section exists in config.''' return section in self._get_cdata(untrusted) def configitems(self, section, untrusted=False): items = self._get_cdata(untrusted).items(section) if self.debugflag and not untrusted: for k,v in self.ucdata.items(section): if self.cdata.get(section, k) != v: self.warn(_("Ignoring untrusted configuration option " "%s.%s = %s\n") % (section, k, v)) return items def walkconfig(self, untrusted=False): cdata = self._get_cdata(untrusted) for section in cdata.sections(): for name, value in self.configitems(section, untrusted): yield section, name, str(value).replace('\n', '\\n') def username(self): """Return default username to be used in commits. Searched in this order: $HGUSER, [ui] section of hgrcs, $EMAIL and stop searching if one of these is set. If not found and ui.askusername is True, ask the user, else use ($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 and self.configbool("ui", "askusername"): user = self.prompt(_("enter a commit username:"), default=None) if user is None: try: user = '%s@%s' % (util.getuser(), socket.getfqdn()) self.warn(_("No username found, using '%s' instead\n") % user) except KeyError: pass if not user: raise util.Abort(_("Please specify a username.")) if "\n" in user: raise util.Abort(_("username %s contains a newline\n") % repr(user)) 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(os.path.join(loc, '.hg')): 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 pushbuffer(self): self.buffers.append([]) def popbuffer(self): return "".join(self.buffers.pop()) def write(self, *args): if self.buffers: self.buffers[-1].extend([str(a) for a in args]) else: for a in args: sys.stdout.write(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)) # stderr may be buffered under win32 when redirected to files, # including stdout. if not sys.stderr.closed: sys.stderr.flush() 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, prompt=''): if self.isatty(): try: # magically add command line editing support, where # available import readline # force demandimport to really load the module readline.read_history_file # windows sometimes raises something other than ImportError except Exception: pass line = raw_input(prompt) # When stdin is in binary mode on Windows, it can cause # raw_input() to emit an extra trailing carriage return if os.linesep == '\r\n' and line and line[-1] == '\r': line = line[:-1] return line def prompt(self, msg, pat=None, default="y"): """Prompt user with msg, read response, and ensure it matches pat If not interactive -- the default is returned """ if not self.interactive: self.note(msg, ' ', default, "\n") return default while True: try: r = self._readline(msg + ' ') if not r: return default if not pat or re.match(pat, r): return r else: self.write(_("unrecognized response\n")) except EOFError: raise util.Abort(_('response expected')) def getpass(self, prompt=None, default=None): if not self.interactive: return default try: return getpass.getpass(prompt or _('password: ')) except EOFError: raise util.Abort(_('response expected')) 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 = self.geteditor() 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 def geteditor(self): '''return editor to use''' return (os.environ.get("HGEDITOR") or self.config("ui", "editor") or os.environ.get("VISUAL") or os.environ.get("EDITOR", "vi"))