mercurial/revset.py

23723:fd62b3e750af

class revsetalias(object):
    funcre = re.compile('^([^(]+)\(([^)]+)\)$')
    args = None

    def __init__(self, name, value):
        '''Aliases like:

        h = heads(default)
        b($1) = ancestors($1) - ancestors(default)

                value = value.replace(arg, '_aliasarg(%r)' % (arg,))
        else:
            self.name = name
            self.tree = ('symbol', name)

        self.replacement, pos = parse(value)
        if pos != len(value):
            raise error.ParseError(_('invalid token'), pos)
        # Check for placeholder injection
        _checkaliasarg(self.replacement, self.args)

def _getalias(aliases, tree):
    """If tree looks like an unexpanded alias, return it. Return None
    otherwise.
    """

    if not isinstance(tree, tuple):
        # Do not expand raw strings
        return tree
    alias = _getalias(aliases, tree)
    if alias is not None:
        if alias in expanding:
            raise error.ParseError(_('infinite expansion of revset alias "%s" '
                                     'detected') % alias.name)
        expanding.append(alias)
        if alias.name not in cache:

    else:
        result = tuple(_expandaliases(aliases, t, expanding, cache)
                       for t in tree)
    return result

def findaliases(ui, tree):
    _checkaliasarg(tree)
    aliases = {}
    for k, v in ui.configitems('revsetalias'):
        alias = revsetalias(k, v)
        aliases[alias.name] = alias
    return _expandaliases(aliases, tree, [], {})

def parse(spec, lookup=None):
    p = parser.parser(tokenize, elements)
    return p.parse(spec, lookup=lookup)

        lookup = repo.__contains__
    tree, pos = parse(spec, lookup)
    if (pos != len(spec)):
        raise error.ParseError(_("invalid token"), pos)
    if ui:
        tree = findaliases(ui, tree)
    weight, tree = optimize(tree, True)
    def mfunc(repo, subset):
        if util.safehasattr(subset, 'isascending'):
            result = getset(repo, subset, tree)
        else:

23725:6a81f88758aa

class revsetalias(object):
    funcre = re.compile('^([^(]+)\(([^)]+)\)$')
    args = None

    # error message at parsing, or None
    error = None
    # whether own `error` information is already shown or not.
    # this avoids showing same warning multiple times at each `findaliases`.
    warned = False

    def __init__(self, name, value):
        '''Aliases like:

        h = heads(default)
        b($1) = ancestors($1) - ancestors(default)

                value = value.replace(arg, '_aliasarg(%r)' % (arg,))
        else:
            self.name = name
            self.tree = ('symbol', name)

        try:
            self.replacement, pos = parse(value)
            if pos != len(value):
                raise error.ParseError(_('invalid token'), pos)
            # Check for placeholder injection
            _checkaliasarg(self.replacement, self.args)
        except error.ParseError, inst:
            if len(inst.args) > 1:
                self.error = _('at %s: %s') % (inst.args[1], inst.args[0])
            else:
                self.error = inst.args[0]

def _getalias(aliases, tree):
    """If tree looks like an unexpanded alias, return it. Return None
    otherwise.
    """

    if not isinstance(tree, tuple):
        # Do not expand raw strings
        return tree
    alias = _getalias(aliases, tree)
    if alias is not None:
        if alias.error:
            raise util.Abort(_('failed to parse revset alias "%s": %s') %
                             (alias.name, alias.error))
        if alias in expanding:
            raise error.ParseError(_('infinite expansion of revset alias "%s" '
                                     'detected') % alias.name)
        expanding.append(alias)
        if alias.name not in cache:

    else:
        result = tuple(_expandaliases(aliases, t, expanding, cache)
                       for t in tree)
    return result

def findaliases(ui, tree, showwarning=None):
    _checkaliasarg(tree)
    aliases = {}
    for k, v in ui.configitems('revsetalias'):
        alias = revsetalias(k, v)
        aliases[alias.name] = alias
    tree = _expandaliases(aliases, tree, [], {})
    if showwarning:
        # warn about problematic (but not referred) aliases
        for name, alias in sorted(aliases.iteritems()):
            if alias.error and not alias.warned:
                msg = _('failed to parse revset alias "%s": %s'
                        ) % (name, alias.error)
                showwarning(_('warning: %s\n') % (msg))
                alias.warned = True
    return tree

def parse(spec, lookup=None):
    p = parser.parser(tokenize, elements)
    return p.parse(spec, lookup=lookup)

        lookup = repo.__contains__
    tree, pos = parse(spec, lookup)
    if (pos != len(spec)):
        raise error.ParseError(_("invalid token"), pos)
    if ui:
        tree = findaliases(ui, tree, showwarning=ui.warn)
    weight, tree = optimize(tree, True)
    def mfunc(repo, subset):
        if util.safehasattr(subset, 'isascending'):
            result = getset(repo, subset, tree)
        else: