Deploy CMS - rebuild all image variations manually

rebuild_variations.py

import os.path
from deploy.utils.importing import import_object

def _get_variation_path(path, variation):
	return os.path.join(
		os.path.dirname(path),
		variation.lower().replace(' ', '-'),
		os.path.basename(path)
	)


def rebuild_all_variations(attachments, variations):

	for attachment in attachments:

		path = attachment.path

		for key, value in variations.items():

			process = variation['process']
			args = variation['args'] if variation.has_key('args') else []
			save_path = _get_variation_path(path, key)

			try:
				process_callable = import_object(process)
			except ImportError, e:
				raise RuntimeError('Unable to import variation processor "%s" for attachment "%s"' % (
					process, path
				))

			try:
				process_callable(attachment, save_path, *args)
			except Exception, e:
				raise RuntimeError('Unable to process variation "%s" using "%s": %s' % (
					path, process, e
				))

if __name__ == '__main__':

	# Example...
	things = request.db.find(Something)

	variation_spec = {
		'inpage': {
			'process': 'deploy.cms.utils.variations.inpage_attachment',
			'args': []
		},
	}

	for thing in things:
		rebuild_all_variations(thing.images, variation_spec)