# Copyright 2020 Joerg Sonnenberger <joerg@bec.de>

#

# This software may be used and distributed according to the terms of the

# GNU General Public License version 2 or any later version.

"""enforce_draft_commits us a hook to ensure that all new changesets are

in the draft phase. This allows enforcing policies for work-in-progress

changes in overlay repositories, i.e. a shared hidden repositories with

different views for work-in-progress code and public history.

Usage:

  [hooks]

  pretxnclose-phase.enforce_draft_commits = \

    python:hgext.hooklib.enforce_draft_commits.hook

"""

from __future__ import absolute_import

from mercurial.i18n import _

from mercurial import (

    error,

    pycompat,

)

def hook(ui, repo, hooktype, node=None, **kwargs):

    if hooktype != b"pretxnclose-phase":

        raise error.Abort(

            _(b'Unsupported hook type %r') % pycompat.bytestr(hooktype)

        )

    ctx = repo.unfiltered()[node]

    if kwargs['oldphase']:

        raise error.Abort(

            _(b'Phase change from %r to %r for %s rejected')

            % (

                pycompat.bytestr(kwargs['oldphase']),

                pycompat.bytestr(kwargs['phase']),

                ctx,

            )

        )

    elif kwargs['phase'] != b'draft':

        raise error.Abort(

            _(b'New changeset %s in phase %r rejected')

            % (ctx, pycompat.bytestr(kwargs['phase']))

        )