diff mercurial/cmdutil.py @ 5185:18a9fbb5cd78

dispatch: move command dispatching into its own module - move command dispatching functions from commands and cmdutil to dispatch - change findcmd to take a table argument - remove circular import of commands in cmdutil - privatize helper functions in dispatch
author Matt Mackall <mpm@selenic.com>
date Wed, 15 Aug 2007 16:55:13 -0500
parents 92236732d5a1
children 5517aa5aafb0
line wrap: on
line diff
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -7,10 +7,8 @@
 
 from node import *
 from i18n import _
-import os, sys, atexit, signal, pdb, traceback, socket, errno, shlex
-import bisect, stat
-import mdiff, bdiff, util, templater, patch, commands, hg, lock, time
-import fancyopts, revlog, version, extensions, hook
+import os, sys, bisect, stat
+import mdiff, bdiff, util, templater, patch
 
 revrangesep = ':'
 
@@ -18,130 +16,8 @@ class UnknownCommand(Exception):
     """Exception raised if command is not in the command table."""
 class AmbiguousCommand(Exception):
     """Exception raised if command shortcut matches more than one command."""
-class ParseError(Exception):
-    """Exception raised on errors in parsing the command line."""
 
-def runcatch(ui, args):
-    def catchterm(*args):
-        raise util.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.print_exc()
-            raise
-
-    except 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 AmbiguousCommand, inst:
-        ui.warn(_("hg: command '%s' is ambiguous:\n    %s\n") %
-                (inst.args[0], " ".join(inst.args[1])))
-    except UnknownCommand, inst:
-        ui.warn(_("hg: unknown command '%s'\n") % inst.args[0])
-        commands.help_(ui, 'shortlist')
-    except hg.RepoError, inst:
-        ui.warn(_("abort: %s!\n") % inst)
-    except lock.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 lock.LockUnavailable, inst:
-        ui.warn(_("abort: could not lock %s: %s\n") %
-               (inst.desc or inst.filename, inst.strerror))
-    except revlog.RevlogError, inst:
-        ui.warn(_("abort: %s!\n") % inst)
-    except util.SignalInterrupt:
-        ui.warn(_("killed!\n"))
-    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 socket.error, inst:
-        ui.warn(_("abort: %s\n") % inst[1])
-    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[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 util.UnexpectedOutput, inst:
-        ui.warn(_("abort: %s") % inst[0])
-        if not isinstance(inst[1], basestring):
-            ui.warn(" %r\n" % (inst[1],))
-        elif not inst[1]:
-            ui.warn(_(" empty string\n"))
-        else:
-            ui.warn("\n%r\n" % util.ellipsis(inst[1]))
-    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 util.Abort, inst:
-        ui.warn(_("abort: %s\n") % inst)
-    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:
-        ui.warn(_("** unknown exception encountered, details follow\n"))
-        ui.warn(_("** report bug details to "
-                 "http://www.selenic.com/mercurial/bts\n"))
-        ui.warn(_("** or mercurial@selenic.com\n"))
-        ui.warn(_("** Mercurial Distributed SCM (version %s)\n")
-               % version.get_version())
-        raise
-
-    return -1
-
-def findpossible(ui, cmd):
+def findpossible(ui, cmd, table):
     """
     Return cmd -> (aliases, command table entry)
     for each matching command.
@@ -149,7 +25,7 @@ def findpossible(ui, cmd):
     """
     choice = {}
     debugchoice = {}
-    for e in commands.table.keys():
+    for e in table.keys():
         aliases = e.lstrip("^").split("|")
         found = None
         if cmd in aliases:
@@ -161,18 +37,18 @@ def findpossible(ui, cmd):
                     break
         if found is not None:
             if aliases[0].startswith("debug") or found.startswith("debug"):
-                debugchoice[found] = (aliases, commands.table[e])
+                debugchoice[found] = (aliases, table[e])
             else:
-                choice[found] = (aliases, commands.table[e])
+                choice[found] = (aliases, table[e])
 
     if not choice and debugchoice:
         choice = debugchoice
 
     return choice
 
-def findcmd(ui, cmd):
+def findcmd(ui, cmd, table):
     """Return (aliases, command table entry) for command string."""
-    choice = findpossible(ui, cmd)
+    choice = findpossible(ui, cmd, table)
 
     if choice.has_key(cmd):
         return choice[cmd]
@@ -187,247 +63,6 @@ def findcmd(ui, cmd):
 
     raise UnknownCommand(cmd)
 
-def findrepo():
-    p = os.getcwd()
-    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 parse(ui, args):
-    options = {}
-    cmdoptions = {}
-
-    try:
-        args = fancyopts.fancyopts(args, commands.globalopts, options)
-    except fancyopts.getopt.GetoptError, inst:
-        raise ParseError(None, inst)
-
-    if args:
-        cmd, args = args[0], args[1:]
-        aliases, i = findcmd(ui, cmd)
-        cmd = aliases[0]
-        defaults = ui.config("defaults", cmd)
-        if defaults:
-            args = 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)
-    except fancyopts.getopt.GetoptError, inst:
-        raise 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(config):
-    """parse the --config options from the command line"""
-    parsed = []
-    for cfg in config:
-        try:
-            name, value = cfg.split('=', 1)
-            section, name = name.split('.', 1)
-            if not section or not name:
-                raise IndexError
-            parsed.append((section, name, value))
-        except (IndexError, ValueError):
-            raise util.Abort(_('malformed --config option: %s') % cfg)
-    return parsed
-
-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 dispatch(ui, args):
-    # read --config before doing anything else
-    # (e.g. to change trust settings for reading .hg/hgrc)
-    config = earlygetopt(['--config'], args)
-    if config:
-        ui.updateopts(config=parseconfig(config))
-
-    # 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() or ""
-    if not path:
-        lui = ui
-    if path:
-        try:
-            lui = commands.ui.ui(parentui=ui)
-            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 = commands.ui.ui(parentui=ui)
-        lui.readconfig(os.path.join(path, ".hg", "hgrc"))
-
-    extensions.loadall(lui)
-    # check for fallback encoding
-    fallback = lui.config('ui', 'fallbackencoding')
-    if fallback:
-        util._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 (i.e. not -qR) "
-            "and --repository may only be abbreviated as --repo!"))
-
-    if options["encoding"]:
-        util._encoding = options["encoding"]
-    if options["encodingmode"]:
-        util._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)
-
-    ui.updateopts(options["verbose"], options["debug"], options["quiet"],
-                 not options["noninteractive"], options["traceback"])
-
-    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)
-        except hg.RepoError:
-            if cmd not in commands.optionalrepo.split():
-                if not path:
-                    raise hg.RepoError(_("There is no Mercurial repository here"
-                                         " (.hg not found)"))
-                raise
-        d = lambda: func(ui, repo, *args, **cmdoptions)
-    else:
-        d = lambda: func(ui, *args, **cmdoptions)
-
-    # run pre-hook, and abort if it fails
-    ret = hook.hook(ui, 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(ui, repo, "post-%s" % cmd, False, args=" ".join(fullargs),
-              result = ret)
-    return ret
-
-def runcommand(ui, options, cmd, cmdfunc):
-    def checkargs():
-        try:
-            return cmdfunc()
-        except TypeError, inst:
-            # was this an argument error?
-            tb = traceback.extract_tb(sys.exc_info()[2])
-            if len(tb) != 2: # no
-                raise
-            raise ParseError(cmd, _("invalid arguments"))
-
-    if options['profile']:
-        import hotshot, hotshot.stats
-        prof = hotshot.Profile("hg.prof")
-        try:
-            try:
-                return prof.runcall(checkargs)
-            except:
-                try:
-                    ui.warn(_('exception raised - generating '
-                             'profile anyway\n'))
-                except:
-                    pass
-                raise
-        finally:
-            prof.close()
-            stats = hotshot.stats.load("hg.prof")
-            stats.strip_dirs()
-            stats.sort_stats('time', 'calls')
-            stats.print_stats(40)
-    elif options['lsprof']:
-        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()
-            stats = lsprof.Stats(p.getstats())
-            stats.sort()
-            stats.pprint(top=10, file=sys.stderr, climit=5)
-    else:
-        return checkargs()
-
 def bail_if_changed(repo):
     modified, added, removed, deleted = repo.status()[:4]
     if modified or added or removed or deleted: