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# dispatch.py - command dispatching for mercurial
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#
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# Copyright 2005-2007 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 _
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import os, sys, atexit, signal, pdb, socket, errno, shlex, time
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import util, commands, hg, lock, fancyopts, extensions, hook, error
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import cmdutil
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import ui as _ui
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def run():
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"run the command in sys.argv"
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sys.exit(dispatch(sys.argv[1:]))
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def dispatch(args):
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"run the command specified in args"
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try:
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u = _ui.ui(traceback='--traceback' in args)
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except util.Abort, inst:
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sys.stderr.write(_("abort: %s\n") % inst)
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return -1
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return _runcatch(u, args)
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def _runcatch(ui, args):
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def catchterm(*args):
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raise util.SignalInterrupt
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for name in 'SIGBREAK', 'SIGHUP', 'SIGTERM':
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num = getattr(signal, name, None)
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if num: signal.signal(num, catchterm)
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try:
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try:
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# enter the debugger before command execution
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if '--debugger' in args:
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pdb.set_trace()
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try:
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return _dispatch(ui, args)
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finally:
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ui.flush()
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except:
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# enter the debugger when we hit an exception
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if '--debugger' in args:
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pdb.post_mortem(sys.exc_info()[2])
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ui.print_exc()
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raise
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except error.ParseError, inst:
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if inst.args[0]:
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ui.warn(_("hg %s: %s\n") % (inst.args[0], inst.args[1]))
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commands.help_(ui, inst.args[0])
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else:
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ui.warn(_("hg: %s\n") % inst.args[1])
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commands.help_(ui, 'shortlist')
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except cmdutil.AmbiguousCommand, inst:
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ui.warn(_("hg: command '%s' is ambiguous:\n %s\n") %
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(inst.args[0], " ".join(inst.args[1])))
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except cmdutil.UnknownCommand, inst:
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ui.warn(_("hg: unknown command '%s'\n") % inst.args[0])
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commands.help_(ui, 'shortlist')
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except error.RepoError, inst:
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ui.warn(_("abort: %s!\n") % inst)
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except error.LockHeld, inst:
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if inst.errno == errno.ETIMEDOUT:
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reason = _('timed out waiting for lock held by %s') % inst.locker
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else:
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reason = _('lock held by %s') % inst.locker
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ui.warn(_("abort: %s: %s\n") % (inst.desc or inst.filename, reason))
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except error.LockUnavailable, inst:
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ui.warn(_("abort: could not lock %s: %s\n") %
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(inst.desc or inst.filename, inst.strerror))
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except error.RevlogError, inst:
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ui.warn(_("abort: %s!\n") % inst)
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except util.SignalInterrupt:
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ui.warn(_("killed!\n"))
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except KeyboardInterrupt:
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try:
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ui.warn(_("interrupted!\n"))
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except IOError, inst:
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if inst.errno == errno.EPIPE:
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if ui.debugflag:
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ui.warn(_("\nbroken pipe\n"))
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else:
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raise
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except socket.error, inst:
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ui.warn(_("abort: %s\n") % inst.args[-1])
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except IOError, inst:
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if hasattr(inst, "code"):
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ui.warn(_("abort: %s\n") % inst)
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elif hasattr(inst, "reason"):
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try: # usually it is in the form (errno, strerror)
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reason = inst.reason.args[1]
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except: # it might be anything, for example a string
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reason = inst.reason
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ui.warn(_("abort: error: %s\n") % reason)
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elif hasattr(inst, "args") and inst.args[0] == errno.EPIPE:
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if ui.debugflag:
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ui.warn(_("broken pipe\n"))
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elif getattr(inst, "strerror", None):
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if getattr(inst, "filename", None):
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ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename))
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else:
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ui.warn(_("abort: %s\n") % inst.strerror)
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else:
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raise
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except OSError, inst:
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if getattr(inst, "filename", None):
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ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename))
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else:
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ui.warn(_("abort: %s\n") % inst.strerror)
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except error.ResponseError, inst:
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ui.warn(_("abort: %s") % inst.args[0])
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if not isinstance(inst.args[1], basestring):
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ui.warn(" %r\n" % (inst.args[1],))
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elif not inst.args[1]:
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ui.warn(_(" empty string\n"))
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else:
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ui.warn("\n%r\n" % util.ellipsis(inst.args[1]))
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except ImportError, inst:
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m = str(inst).split()[-1]
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ui.warn(_("abort: could not import module %s!\n") % m)
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if m in "mpatch bdiff".split():
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ui.warn(_("(did you forget to compile extensions?)\n"))
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elif m in "zlib".split():
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ui.warn(_("(is your Python install correct?)\n"))
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except util.Abort, inst:
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ui.warn(_("abort: %s\n") % inst)
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except MemoryError:
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ui.warn(_("abort: out of memory\n"))
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except SystemExit, inst:
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# Commands shouldn't sys.exit directly, but give a return code.
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# Just in case catch this and and pass exit code to caller.
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return inst.code
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except:
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ui.warn(_("** unknown exception encountered, details follow\n"))
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ui.warn(_("** report bug details to "
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"http://www.selenic.com/mercurial/bts\n"))
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ui.warn(_("** or mercurial@selenic.com\n"))
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ui.warn(_("** Mercurial Distributed SCM (version %s)\n")
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% util.version())
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ui.warn(_("** Extensions loaded: %s\n")
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% ", ".join([x[0] for x in extensions.extensions()]))
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raise
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return -1
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def _findrepo(p):
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while not os.path.isdir(os.path.join(p, ".hg")):
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oldp, p = p, os.path.dirname(p)
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if p == oldp:
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return None
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return p
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def _parse(ui, args):
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options = {}
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cmdoptions = {}
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try:
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args = fancyopts.fancyopts(args, commands.globalopts, options)
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except fancyopts.getopt.GetoptError, inst:
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raise error.ParseError(None, inst)
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if args:
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cmd, args = args[0], args[1:]
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aliases, i = cmdutil.findcmd(cmd, commands.table,
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ui.config("ui", "strict"))
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cmd = aliases[0]
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defaults = ui.config("defaults", cmd)
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if defaults:
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args = shlex.split(defaults) + args
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c = list(i[1])
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else:
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cmd = None
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c = []
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# combine global options into local
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for o in commands.globalopts:
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c.append((o[0], o[1], options[o[1]], o[3]))
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try:
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args = fancyopts.fancyopts(args, c, cmdoptions)
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except fancyopts.getopt.GetoptError, inst:
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raise error.ParseError(cmd, inst)
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# separate global options back out
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for o in commands.globalopts:
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n = o[1]
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options[n] = cmdoptions[n]
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del cmdoptions[n]
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return (cmd, cmd and i[0] or None, args, options, cmdoptions)
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def _parseconfig(config):
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"""parse the --config options from the command line"""
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parsed = []
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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 section or not name:
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raise IndexError
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parsed.append((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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return parsed
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def _earlygetopt(aliases, args):
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"""Return list of values for an option (or aliases).
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The values are listed in the order they appear in args.
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The options and values are removed from args.
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"""
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try:
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argcount = args.index("--")
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except ValueError:
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argcount = len(args)
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shortopts = [opt for opt in aliases if len(opt) == 2]
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values = []
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pos = 0
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while pos < argcount:
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if args[pos] in aliases:
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if pos + 1 >= argcount:
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# ignore and let getopt report an error if there is no value
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break
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del args[pos]
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values.append(args.pop(pos))
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argcount -= 2
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elif args[pos][:2] in shortopts:
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# short option can have no following space, e.g. hg log -Rfoo
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values.append(args.pop(pos)[2:])
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argcount -= 1
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else:
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pos += 1
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return values
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_loaded = {}
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def _dispatch(ui, args):
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# read --config before doing anything else
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# (e.g. to change trust settings for reading .hg/hgrc)
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config = _earlygetopt(['--config'], args)
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if config:
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ui.updateopts(config=_parseconfig(config))
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# check for cwd
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cwd = _earlygetopt(['--cwd'], args)
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if cwd:
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os.chdir(cwd[-1])
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# read the local repository .hgrc into a local ui object
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path = _findrepo(os.getcwd()) or ""
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if not path:
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lui = ui
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if path:
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try:
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lui = _ui.ui(parentui=ui)
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lui.readconfig(os.path.join(path, ".hg", "hgrc"))
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except IOError:
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pass
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# now we can expand paths, even ones in .hg/hgrc
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rpath = _earlygetopt(["-R", "--repository", "--repo"], args)
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if rpath:
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path = lui.expandpath(rpath[-1])
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lui = _ui.ui(parentui=ui)
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lui.readconfig(os.path.join(path, ".hg", "hgrc"))
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extensions.loadall(lui)
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for name, module in extensions.extensions():
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if name in _loaded:
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continue
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# setup extensions
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# TODO this should be generalized to scheme, where extensions can
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# redepend on other extensions. then we should toposort them, and
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# do initialization in correct order
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extsetup = getattr(module, 'extsetup', None)
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if extsetup:
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extsetup()
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cmdtable = getattr(module, 'cmdtable', {})
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overrides = [cmd for cmd in cmdtable if cmd in commands.table]
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if overrides:
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ui.warn(_("extension '%s' overrides commands: %s\n")
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% (name, " ".join(overrides)))
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commands.table.update(cmdtable)
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_loaded[name] = 1
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# check for fallback encoding
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fallback = lui.config('ui', 'fallbackencoding')
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if fallback:
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util._fallbackencoding = fallback
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fullargs = args
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cmd, func, args, options, cmdoptions = _parse(lui, args)
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if options["config"]:
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raise util.Abort(_("Option --config may not be abbreviated!"))
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if options["cwd"]:
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raise util.Abort(_("Option --cwd may not be abbreviated!"))
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if options["repository"]:
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raise util.Abort(_(
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"Option -R has to be separated from other options (i.e. not -qR) "
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"and --repository may only be abbreviated as --repo!"))
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if options["encoding"]:
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util._encoding = options["encoding"]
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if options["encodingmode"]:
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util._encodingmode = options["encodingmode"]
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if options["time"]:
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def get_times():
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t = os.times()
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if t[4] == 0.0: # Windows leaves this as zero, so use time.clock()
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t = (t[0], t[1], t[2], t[3], time.clock())
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return t
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s = get_times()
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def print_time():
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t = get_times()
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ui.warn(_("Time: real %.3f secs (user %.3f+%.3f sys %.3f+%.3f)\n") %
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(t[4]-s[4], t[0]-s[0], t[2]-s[2], t[1]-s[1], t[3]-s[3]))
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atexit.register(print_time)
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ui.updateopts(options["verbose"], options["debug"], options["quiet"],
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not options["noninteractive"], options["traceback"])
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if options['help']:
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return commands.help_(ui, cmd, options['version'])
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elif options['version']:
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return commands.version_(ui)
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elif not cmd:
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return commands.help_(ui, 'shortlist')
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repo = None
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if cmd not in commands.norepo.split():
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try:
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repo = hg.repository(ui, path=path)
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ui = repo.ui
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if not repo.local():
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raise util.Abort(_("repository '%s' is not local") % path)
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ui.setconfig("bundle", "mainreporoot", repo.root)
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except error.RepoError:
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if cmd not in commands.optionalrepo.split():
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if args and not path: # try to infer -R from command args
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repos = map(_findrepo, args)
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guess = repos[0]
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if guess and repos.count(guess) == len(repos):
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return _dispatch(ui, ['--repository', guess] + fullargs)
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if not path:
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raise error.RepoError(_("There is no Mercurial repository"
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" here (.hg not found)"))
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raise
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args.insert(0, repo)
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d = lambda: util.checksignature(func)(ui, *args, **cmdoptions)
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# run pre-hook, and abort if it fails
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ret = hook.hook(lui, repo, "pre-%s" % cmd, False, args=" ".join(fullargs))
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if ret:
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return ret
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ret = _runcommand(ui, options, cmd, d)
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# run post-hook, passing command result
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hook.hook(lui, repo, "post-%s" % cmd, False, args=" ".join(fullargs),
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result = ret)
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return ret
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def _runcommand(ui, options, cmd, cmdfunc):
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def checkargs():
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try:
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return cmdfunc()
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except util.SignatureError:
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raise error.ParseError(cmd, _("invalid arguments"))
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if options['profile']:
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import hotshot, hotshot.stats
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prof = hotshot.Profile("hg.prof")
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try:
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try:
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return prof.runcall(checkargs)
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except:
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try:
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ui.warn(_('exception raised - generating '
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'profile anyway\n'))
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except:
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pass
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raise
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finally:
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prof.close()
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stats = hotshot.stats.load("hg.prof")
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stats.strip_dirs()
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stats.sort_stats('time', 'calls')
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stats.print_stats(40)
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elif options['lsprof']:
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try:
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from mercurial import lsprof
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except ImportError:
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raise util.Abort(_(
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'lsprof not available - install from '
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'http://codespeak.net/svn/user/arigo/hack/misc/lsprof/'))
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p = lsprof.Profiler()
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p.enable(subcalls=True)
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try:
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return checkargs()
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finally:
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p.disable()
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stats = lsprof.Stats(p.getstats())
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stats.sort()
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stats.pprint(top=10, file=sys.stderr, climit=5)
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else:
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return checkargs()
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