comparison hgext/histedit.py @ 27086:5f5c7d9f4a08

histedit: constant-ify the constraints list

Used a class as a namespace, and then wired up a classmethod to return
all known constraints. I'm mostly happy with this, even though it's
kind of weird for hg.

27085:d50ff8f4891f

from mercurial.i18n import _

cmdtable = {}
command = cmdutil.command(cmdtable)

# Note for extension authors: ONLY specify testedwith = 'internal' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'internal'

            raise error.Abort(_('unknown changeset %s listed') % rulehash[:12])
        return cls(state, node)

    def constraints(self):
        """Return a set of constrains that this action should be verified for

           Available constraints:
               noduplicates - aborts if there are multiple rules for one node
               noother - abort if the node doesn't belong to edited stack
               forceother - abort if the node does belong to edited stack
        """

        return set(['noduplicates', 'noother'])

    def nodetoverify(self):
        """Returns a node associated with the action that will be used for
        verification purposes.

            replacements.append((ich, (n,)))
        return repo[n], replacements

class base(histeditaction):
    def constraints(self):
        return set(['forceother'])

    def run(self):
        if self.repo['.'].node() != self.node:
            mergemod.update(self.repo, self.node, False, True, False)
            #                                     branchmerge, force, partial)

    """Verify that there exists exactly one edit rule per given changeset.

    Will abort if there are to many or too few rules, a malformed rule,
    or a rule on a changeset outside of the user-given range.
    """
    known_constraints = ['noother', 'noduplicates']
    parsed = []
    expected = set(c.hex() for c in ctxs)
    seen = set()
    for r in rules:
        if ' ' not in r:

        if verb not in actiontable or verb.startswith('_'):
            raise error.Abort(_('unknown action "%s"') % verb)
        action = actiontable[verb].fromrule(state, rest)
        constraints = action.constraints()
        for constraint in constraints:
            if constraint not in known_constraints:
                error.Abort(_('unknown constraint "%s"') % constraint)

        nodetoverify = action.nodetoverify()
        if nodetoverify is not None:
            ha = node.hex(nodetoverify)
            if 'noother' in constraints and ha not in expected:
                raise error.Abort(
                    _('may not use "%s" with changesets '
                      'other than the ones listed') % verb)
            if 'forceother' in constraints and ha in expected:
                raise error.Abort(
                    _('may not use "%s" with changesets '
                      'within the edited list') % verb)
            if 'noduplicates' in constraints and ha in seen:
                raise error.Abort(_('duplicated command for changeset %s') %
                        ha[:12])
            seen.add(ha)
            rest = ha
        parsed.append([verb, rest])

27086:5f5c7d9f4a08

from mercurial.i18n import _

cmdtable = {}
command = cmdutil.command(cmdtable)

class _constraints(object):
    # aborts if there are multiple rules for one node
    noduplicates = 'noduplicates'
    # abort if the node does belong to edited stack
    forceother = 'forceother'
    # abort if the node doesn't belong to edited stack
    noother = 'noother'

    @classmethod
    def known(cls):
        return set([v for k, v in cls.__dict__.items() if k[0] != '_'])

# Note for extension authors: ONLY specify testedwith = 'internal' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'internal'

            raise error.Abort(_('unknown changeset %s listed') % rulehash[:12])
        return cls(state, node)

    def constraints(self):
        """Return a set of constrains that this action should be verified for
        """
        return set([_constraints.noduplicates, _constraints.noother])

    def nodetoverify(self):
        """Returns a node associated with the action that will be used for
        verification purposes.

            replacements.append((ich, (n,)))
        return repo[n], replacements

class base(histeditaction):
    def constraints(self):
        return set([_constraints.forceother])

    def run(self):
        if self.repo['.'].node() != self.node:
            mergemod.update(self.repo, self.node, False, True, False)
            #                                     branchmerge, force, partial)

    """Verify that there exists exactly one edit rule per given changeset.

    Will abort if there are to many or too few rules, a malformed rule,
    or a rule on a changeset outside of the user-given range.
    """
    parsed = []
    expected = set(c.hex() for c in ctxs)
    seen = set()
    for r in rules:
        if ' ' not in r:

        if verb not in actiontable or verb.startswith('_'):
            raise error.Abort(_('unknown action "%s"') % verb)
        action = actiontable[verb].fromrule(state, rest)
        constraints = action.constraints()
        for constraint in constraints:
            if constraint not in _constraints.known():
                error.Abort(_('unknown constraint "%s"') % constraint)

        nodetoverify = action.nodetoverify()
        if nodetoverify is not None:
            ha = node.hex(nodetoverify)
            if _constraints.noother in constraints and ha not in expected:
                raise error.Abort(
                    _('may not use "%s" with changesets '
                      'other than the ones listed') % verb)
            if _constraints.forceother in constraints and ha in expected:
                raise error.Abort(
                    _('may not use "%s" with changesets '
                      'within the edited list') % verb)
            if _constraints.noduplicates in constraints and ha in seen:
                raise error.Abort(_('duplicated command for changeset %s') %
                        ha[:12])
            seen.add(ha)
            rest = ha
        parsed.append([verb, rest])