"""

Hook to log changesets pushed and pulled

"""

from mercurial.i18n import _

import mercurial.util

import mercurial.node

import os

import time

from mercurialserver import ruleset, changes

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

    if hooktype == 'changegroup':

        op = "push"

    elif hooktype == 'outgoing':

        op = "pull"

    else:

        raise mercurial.util.Abort(_('servelog installed as wrong hook type,'

            ' must be changegroup or outgoing but is %s') % hooktype)

    t = time.strftime("%Y-%m-%d_%H:%M:%S", time.gmtime())

    user = ruleset.rules.get('user')

    # FIXME: lock it

    log = open(repo.join("serve-log"), "a+")

    try:

        for ctx in changes.changes(repo, node):

            log.write("%s %s key=%s changeset=%s\n" % 

                (t, op, user, mercurial.node.hex(ctx.node())))

    finally:

        log.close()