# 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, sections=None):
if not sections:
sections = source.sections()
for section in 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.trusted_users = {}
self.trusted_groups = {}
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.trusted_users = parentui.trusted_users.copy()
self.trusted_groups = parentui.trusted_groups.copy()
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 _is_trusted(self, fp, f, warn=True):
tusers = self.trusted_users
tgroups = self.trusted_groups
if (tusers or tgroups) and '*' not in tusers and '*' not in tgroups:
st = util.fstat(fp)
user = util.username(st.st_uid)
group = util.groupname(st.st_gid)
if user not in tusers and group not in tgroups:
if warn:
self.warn(_('Not reading file %s from untrusted '
'user %s, group %s\n') % (f, user, group))
return False
return True
def readconfig(self, fn, root=None):
if isinstance(fn, basestring):
fn = [fn]
for f in fn:
try:
fp = open(f)
except IOError:
continue
if not self._is_trusted(fp, f):
continue
try:
self.cdata.readfp(fp, 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 readsections(self, filename, *sections):
"read filename and add only the specified sections to the config data"
if not sections:
return
cdata = util.configparser()
try:
cdata.read(filename)
except ConfigParser.ParsingError, inst:
raise util.Abort(_("failed to parse %s\n%s") % (filename,
inst))
for section in sections:
if not cdata.has_section(section):
cdata.add_section(section)
updateconfig(cdata, self.cdata, sections)
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)
# update trust information
if section is None or section == 'trusted':
user = util.username()
if user is not None:
self.trusted_users[user] = 1
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):
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 no username is found, to force specifying the commit user
with line option or repo hgrc.
"""
user = os.environ.get("HGUSER")
if user is None:
user = self.config("ui", "username")
if user is None:
user = os.environ.get("EMAIL")
if not user:
self.status(_("Please choose a commit username to be recorded "
"in the changelog via\ncommand line option "
'(-u "First Last <email@example.com>"), in the\n'
"configuration files (hgrc), or by setting the "
"EMAIL environment variable.\n\n"))
raise util.Abort(_("No commit username specified!"))
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