comparison mercurial/dispatch.py @ 29761:39149b6036e6

dispatch: split global error handling out so it can be reused

We may want a similar error handling at worker.py. This patch extracts the
error handling logic to "callcatch" so it can be reused.

29760:3df9f780c90e

            if num:
                signal.signal(num, catchterm)
    except ValueError:
        pass # happens if called in a thread

    try:
        try:
            debugger = 'pdb'
            debugtrace = {
                'pdb' : pdb.set_trace
            }

                traceback.print_exc()
                debugmortem[debugger](sys.exc_info()[2])
            ui.traceback()
            raise

    # Global exception handling, alphabetically
    # Mercurial-specific first, followed by built-in and library exceptions
    except error.AmbiguousCommand as inst:
        ui.warn(_("hg: command '%s' is ambiguous:\n    %s\n") %
                (inst.args[0], " ".join(inst.args[1])))

29761:39149b6036e6

            if num:
                signal.signal(num, catchterm)
    except ValueError:
        pass # happens if called in a thread

    def _runcatchfunc():
        try:
            debugger = 'pdb'
            debugtrace = {
                'pdb' : pdb.set_trace
            }

                traceback.print_exc()
                debugmortem[debugger](sys.exc_info()[2])
            ui.traceback()
            raise

    return callcatch(ui, _runcatchfunc)

def callcatch(ui, func):
    """call func() with global exception handling

    return func() if no exception happens. otherwise do some error handling
    and return an exit code accordingly.
    """
    try:
        return func()
    # Global exception handling, alphabetically
    # Mercurial-specific first, followed by built-in and library exceptions
    except error.AmbiguousCommand as inst:
        ui.warn(_("hg: command '%s' is ambiguous:\n    %s\n") %
                (inst.args[0], " ".join(inst.args[1])))