Mercurial > hg
view mercurial/dispatch.py @ 10092:f1bf64abcb1b stable
doc/Makefile: Fix rst2html detection
Displaying the output from the failing call to "which" didn't prevent
make from doing stupid things later. We now only search for "rst2html"
and fallback to "rst2html.py". If neither name is found, make will
eventually abort when we try to use $(RST2HTML).
author | Mads Kiilerich <mads@kiilerich.com> |
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date | Wed, 16 Dec 2009 23:59:50 +0100 |
parents | 8bce1e0d2801 |
children | 931d2c757627 25e572394f5c |
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# dispatch.py - command dispatching 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 version 2, incorporated herein by reference. from i18n import _ import os, sys, atexit, signal, pdb, socket, errno, shlex, time import util, commands, hg, fancyopts, extensions, hook, error import cmdutil, encoding import ui as _ui def run(): "run the command in sys.argv" sys.exit(dispatch(sys.argv[1:])) def dispatch(args): "run the command specified in args" try: u = _ui.ui() if '--traceback' in args: u.setconfig('ui', 'traceback', 'on') except util.Abort, inst: sys.stderr.write(_("abort: %s\n") % inst) return -1 except error.ConfigError, inst: sys.stderr.write(_("hg: %s\n") % inst) return -1 return _runcatch(u, args) def _runcatch(ui, args): def catchterm(*args): raise error.SignalInterrupt for name in 'SIGBREAK', 'SIGHUP', 'SIGTERM': num = getattr(signal, name, None) if num: signal.signal(num, catchterm) try: try: # enter the debugger before command execution if '--debugger' in args: pdb.set_trace() try: return _dispatch(ui, args) finally: ui.flush() except: # enter the debugger when we hit an exception if '--debugger' in args: pdb.post_mortem(sys.exc_info()[2]) ui.traceback() raise # Global exception handling, alphabetically # Mercurial-specific first, followed by built-in and library exceptions except error.AmbiguousCommand, inst: ui.warn(_("hg: command '%s' is ambiguous:\n %s\n") % (inst.args[0], " ".join(inst.args[1]))) except error.ConfigError, inst: ui.warn(_("hg: %s\n") % inst.args[0]) except error.LockHeld, inst: if inst.errno == errno.ETIMEDOUT: reason = _('timed out waiting for lock held by %s') % inst.locker else: reason = _('lock held by %s') % inst.locker ui.warn(_("abort: %s: %s\n") % (inst.desc or inst.filename, reason)) except error.LockUnavailable, inst: ui.warn(_("abort: could not lock %s: %s\n") % (inst.desc or inst.filename, inst.strerror)) except error.ParseError, inst: if inst.args[0]: ui.warn(_("hg %s: %s\n") % (inst.args[0], inst.args[1])) commands.help_(ui, inst.args[0]) else: ui.warn(_("hg: %s\n") % inst.args[1]) commands.help_(ui, 'shortlist') except error.RepoError, inst: ui.warn(_("abort: %s!\n") % inst) except error.ResponseError, inst: ui.warn(_("abort: %s") % inst.args[0]) if not isinstance(inst.args[1], basestring): ui.warn(" %r\n" % (inst.args[1],)) elif not inst.args[1]: ui.warn(_(" empty string\n")) else: ui.warn("\n%r\n" % util.ellipsis(inst.args[1])) except error.RevlogError, inst: ui.warn(_("abort: %s!\n") % inst) except error.SignalInterrupt: ui.warn(_("killed!\n")) except error.UnknownCommand, inst: ui.warn(_("hg: unknown command '%s'\n") % inst.args[0]) commands.help_(ui, 'shortlist') except util.Abort, inst: ui.warn(_("abort: %s\n") % inst) except ImportError, inst: m = str(inst).split()[-1] ui.warn(_("abort: could not import module %s!\n") % m) if m in "mpatch bdiff".split(): ui.warn(_("(did you forget to compile extensions?)\n")) elif m in "zlib".split(): ui.warn(_("(is your Python install correct?)\n")) except IOError, inst: if hasattr(inst, "code"): ui.warn(_("abort: %s\n") % inst) elif hasattr(inst, "reason"): try: # usually it is in the form (errno, strerror) reason = inst.reason.args[1] except: # it might be anything, for example a string reason = inst.reason ui.warn(_("abort: error: %s\n") % reason) elif hasattr(inst, "args") and inst.args[0] == errno.EPIPE: if ui.debugflag: ui.warn(_("broken pipe\n")) elif getattr(inst, "strerror", None): if getattr(inst, "filename", None): ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename)) else: ui.warn(_("abort: %s\n") % inst.strerror) else: raise except OSError, inst: if getattr(inst, "filename", None): ui.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename)) else: ui.warn(_("abort: %s\n") % inst.strerror) except KeyboardInterrupt: try: ui.warn(_("interrupted!\n")) except IOError, inst: if inst.errno == errno.EPIPE: if ui.debugflag: ui.warn(_("\nbroken pipe\n")) else: raise except MemoryError: ui.warn(_("abort: out of memory\n")) except SystemExit, inst: # Commands shouldn't sys.exit directly, but give a return code. # Just in case catch this and and pass exit code to caller. return inst.code except socket.error, inst: ui.warn(_("abort: %s\n") % inst.args[-1]) except: ui.warn(_("** unknown exception encountered, details follow\n")) ui.warn(_("** report bug details to " "http://mercurial.selenic.com/bts/\n")) ui.warn(_("** or mercurial@selenic.com\n")) ui.warn(_("** Mercurial Distributed SCM (version %s)\n") % util.version()) ui.warn(_("** Extensions loaded: %s\n") % ", ".join([x[0] for x in extensions.extensions()])) raise return -1 def _findrepo(p): while not os.path.isdir(os.path.join(p, ".hg")): oldp, p = p, os.path.dirname(p) if p == oldp: return None return p def aliasargs(fn): if hasattr(fn, 'args'): return fn.args return [] class cmdalias(object): def __init__(self, name, definition, cmdtable): self.name = name self.definition = definition self.args = [] self.opts = [] self.help = '' self.norepo = True try: cmdutil.findcmd(self.name, cmdtable, True) self.shadows = True except error.UnknownCommand: self.shadows = False if not self.definition: def fn(ui, *args): ui.warn(_("no definition for alias '%s'\n") % self.name) return 1 self.fn = fn return args = shlex.split(self.definition) cmd = args.pop(0) try: tableentry = cmdutil.findcmd(cmd, cmdtable, False)[1] if len(tableentry) > 2: self.fn, self.opts, self.help = tableentry else: self.fn, self.opts = tableentry self.args = aliasargs(self.fn) + args if cmd not in commands.norepo.split(' '): self.norepo = False except error.UnknownCommand: def fn(ui, *args): ui.warn(_("alias '%s' resolves to unknown command '%s'\n") \ % (self.name, cmd)) return 1 self.fn = fn except error.AmbiguousCommand: def fn(ui, *args): ui.warn(_("alias '%s' resolves to ambiguous command '%s'\n") \ % (self.name, cmd)) return 1 self.fn = fn def __call__(self, ui, *args, **opts): if self.shadows: ui.debug("alias '%s' shadows command\n" % self.name) return self.fn(ui, *args, **opts) def addaliases(ui, cmdtable): # aliases are processed after extensions have been loaded, so they # may use extension commands. Aliases can also use other alias definitions, # but only if they have been defined prior to the current definition. for alias, definition in ui.configitems('alias'): aliasdef = cmdalias(alias, definition, cmdtable) cmdtable[alias] = (aliasdef, aliasdef.opts, aliasdef.help) if aliasdef.norepo: commands.norepo += ' %s' % alias def _parse(ui, args): options = {} cmdoptions = {} try: args = fancyopts.fancyopts(args, commands.globalopts, options) except fancyopts.getopt.GetoptError, inst: raise error.ParseError(None, inst) if args: cmd, args = args[0], args[1:] aliases, i = cmdutil.findcmd(cmd, commands.table, ui.config("ui", "strict")) cmd = aliases[0] args = aliasargs(i[0]) + args defaults = ui.config("defaults", cmd) if defaults: args = map(util.expandpath, shlex.split(defaults)) + args c = list(i[1]) else: cmd = None c = [] # combine global options into local for o in commands.globalopts: c.append((o[0], o[1], options[o[1]], o[3])) try: args = fancyopts.fancyopts(args, c, cmdoptions, True) except fancyopts.getopt.GetoptError, inst: raise error.ParseError(cmd, inst) # separate global options back out for o in commands.globalopts: n = o[1] options[n] = cmdoptions[n] del cmdoptions[n] return (cmd, cmd and i[0] or None, args, options, cmdoptions) def _parseconfig(ui, config): """parse the --config options from the command line""" for cfg in config: try: name, value = cfg.split('=', 1) section, name = name.split('.', 1) if not section or not name: raise IndexError ui.setconfig(section, name, value) except (IndexError, ValueError): raise util.Abort(_('malformed --config option: %r ' '(use --config section.name=value)') % cfg) def _earlygetopt(aliases, args): """Return list of values for an option (or aliases). The values are listed in the order they appear in args. The options and values are removed from args. """ try: argcount = args.index("--") except ValueError: argcount = len(args) shortopts = [opt for opt in aliases if len(opt) == 2] values = [] pos = 0 while pos < argcount: if args[pos] in aliases: if pos + 1 >= argcount: # ignore and let getopt report an error if there is no value break del args[pos] values.append(args.pop(pos)) argcount -= 2 elif args[pos][:2] in shortopts: # short option can have no following space, e.g. hg log -Rfoo values.append(args.pop(pos)[2:]) argcount -= 1 else: pos += 1 return values def runcommand(lui, repo, cmd, fullargs, ui, options, d): # run pre-hook, and abort if it fails ret = hook.hook(lui, repo, "pre-%s" % cmd, False, args=" ".join(fullargs)) if ret: return ret ret = _runcommand(ui, options, cmd, d) # run post-hook, passing command result hook.hook(lui, repo, "post-%s" % cmd, False, args=" ".join(fullargs), result = ret) return ret _loaded = set() def _dispatch(ui, args): # read --config before doing anything else # (e.g. to change trust settings for reading .hg/hgrc) _parseconfig(ui, _earlygetopt(['--config'], args)) # check for cwd cwd = _earlygetopt(['--cwd'], args) if cwd: os.chdir(cwd[-1]) # read the local repository .hgrc into a local ui object path = _findrepo(os.getcwd()) or "" if not path: lui = ui else: try: lui = ui.copy() lui.readconfig(os.path.join(path, ".hg", "hgrc")) except IOError: pass # now we can expand paths, even ones in .hg/hgrc rpath = _earlygetopt(["-R", "--repository", "--repo"], args) if rpath: path = lui.expandpath(rpath[-1]) lui = ui.copy() lui.readconfig(os.path.join(path, ".hg", "hgrc")) # Configure extensions in phases: uisetup, extsetup, cmdtable, and # reposetup. Programs like TortoiseHg will call _dispatch several # times so we keep track of configured extensions in _loaded. extensions.loadall(lui) exts = [ext for ext in extensions.extensions() if ext[0] not in _loaded] # (uisetup and extsetup are handled in extensions.loadall) for name, module in exts: cmdtable = getattr(module, 'cmdtable', {}) overrides = [cmd for cmd in cmdtable if cmd in commands.table] if overrides: ui.warn(_("extension '%s' overrides commands: %s\n") % (name, " ".join(overrides))) commands.table.update(cmdtable) _loaded.add(name) # (reposetup is handled in hg.repository) addaliases(lui, commands.table) # check for fallback encoding fallback = lui.config('ui', 'fallbackencoding') if fallback: encoding.fallbackencoding = fallback fullargs = args cmd, func, args, options, cmdoptions = _parse(lui, args) if options["config"]: raise util.Abort(_("Option --config may not be abbreviated!")) if options["cwd"]: raise util.Abort(_("Option --cwd may not be abbreviated!")) if options["repository"]: raise util.Abort(_( "Option -R has to be separated from other options (e.g. not -qR) " "and --repository may only be abbreviated as --repo!")) if options["encoding"]: encoding.encoding = options["encoding"] if options["encodingmode"]: encoding.encodingmode = options["encodingmode"] if options["time"]: def get_times(): t = os.times() if t[4] == 0.0: # Windows leaves this as zero, so use time.clock() t = (t[0], t[1], t[2], t[3], time.clock()) return t s = get_times() def print_time(): t = get_times() ui.warn(_("Time: real %.3f secs (user %.3f+%.3f sys %.3f+%.3f)\n") % (t[4]-s[4], t[0]-s[0], t[2]-s[2], t[1]-s[1], t[3]-s[3])) atexit.register(print_time) if options['verbose'] or options['debug'] or options['quiet']: ui.setconfig('ui', 'verbose', str(bool(options['verbose']))) ui.setconfig('ui', 'debug', str(bool(options['debug']))) ui.setconfig('ui', 'quiet', str(bool(options['quiet']))) if options['traceback']: ui.setconfig('ui', 'traceback', 'on') if options['noninteractive']: ui.setconfig('ui', 'interactive', 'off') if options['help']: return commands.help_(ui, cmd, options['version']) elif options['version']: return commands.version_(ui) elif not cmd: return commands.help_(ui, 'shortlist') repo = None if cmd not in commands.norepo.split(): try: repo = hg.repository(ui, path=path) ui = repo.ui if not repo.local(): raise util.Abort(_("repository '%s' is not local") % path) ui.setconfig("bundle", "mainreporoot", repo.root) except error.RepoError: if cmd not in commands.optionalrepo.split(): if args and not path: # try to infer -R from command args repos = map(_findrepo, args) guess = repos[0] if guess and repos.count(guess) == len(repos): return _dispatch(ui, ['--repository', guess] + fullargs) if not path: raise error.RepoError(_("There is no Mercurial repository" " here (.hg not found)")) raise args.insert(0, repo) elif rpath: ui.warn("warning: --repository ignored\n") d = lambda: util.checksignature(func)(ui, *args, **cmdoptions) return runcommand(lui, repo, cmd, fullargs, ui, options, d) def _runcommand(ui, options, cmd, cmdfunc): def checkargs(): try: return cmdfunc() except error.SignatureError: raise error.ParseError(cmd, _("invalid arguments")) if options['profile']: format = ui.config('profiling', 'format', default='text') if not format in ['text', 'kcachegrind']: ui.warn(_("unrecognized profiling format '%s'" " - Ignored\n") % format) format = 'text' output = ui.config('profiling', 'output') if output: path = ui.expandpath(output) ostream = open(path, 'wb') else: ostream = sys.stderr try: from mercurial import lsprof except ImportError: raise util.Abort(_( 'lsprof not available - install from ' 'http://codespeak.net/svn/user/arigo/hack/misc/lsprof/')) p = lsprof.Profiler() p.enable(subcalls=True) try: return checkargs() finally: p.disable() if format == 'kcachegrind': import lsprofcalltree calltree = lsprofcalltree.KCacheGrind(p) calltree.output(ostream) else: # format == 'text' stats = lsprof.Stats(p.getstats()) stats.sort() stats.pprint(top=10, file=ostream, climit=5) if output: ostream.close() else: return checkargs()