bin/instance run this script to dump your Plone site into an a folder

gistfile1.txt

# coding=utf-8
from AccessControl.SecurityManagement import newSecurityManager
from AccessControl.SecurityManager import setSecurityPolicy
from collective.jsonify.export import export_content
from logging import DEBUG
from logging import getLogger
from Products.CMFCore.tests.base.security import OmnipotentUser
from Products.CMFCore.tests.base.security import PermissiveSecurityPolicy
from Testing.makerequest import makerequest

logger = getLogger(__name__)
logger.setLevel(DEBUG)


def spoofRequest(app):
    """
    Make REQUEST variable to be available on the Zope application server.

    This allows acquisition to work properly
    """
    _policy = PermissiveSecurityPolicy()
    _oldpolicy = setSecurityPolicy(_policy)
    newSecurityManager(None, OmnipotentUser().__of__(app.acl_users))
    return makerequest(app)


def main(app):
    '''
    print some data
    '''
    # Enable Faux HTTP request object
    app = spoofRequest(app)

    data = export_content(
        app.Plone,
        basedir='/tmp',  # export directory
        extra_skip_classname=['ATTopic'],
        batch_start=0,
        batch_size=5000,
    )
    logger.warning(data)


if "app" in locals():
    main(app)  # noqa
    
"""
Dump looks like this:

/tmp/content_Plone_2016-04-27-16-44-35/
└── 0
    ├── 1.json
    ├── 2.json
    ├── 3.json
    ├── 4.json
    ├── 5.json
    └── 6.json

"""