John Dickinson 156f27c921 object versioning ... Object versioning in swift is implemented by setting a flag on the container to tell swift to version all objects in the container. The flag is the ``X-Versions-Location`` header on the container, and its value is the container where the versions are stored. When data is ``PUT`` into a versioned container (a container with the versioning flag turned on), the existing data in the file is redirected to a new object and the data in the ``PUT`` request is saved as the data for the versioned object. The new object name (for the previous version) is ``<versions_container>/<object_name>/<timestamp>``, where the timestamp is generated by converting the ``Last-Modified`` header value of the current version to a unix timestamp. A ``GET`` to a versioned object will return the current version of the object without having to do any request redirects or metadata lookups. Change-Id: I4fcd723145e02bbb2ec1d3ad356713f5dea43b8b		2012-03-28 15:48:43 -05:00
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__init__.py	Initial commit of Swift code	2010-07-12 17:03:45 -05:00
auditor.py	updated copyright date for all files	2012-03-19 13:45:34 -05:00
expirer.py	Fixed url in ObjectExpirer.iter_objects().	2012-03-26 15:56:38 +00:00
replicator.py	Merge "Make ring class interface slightly more abstracted from implementation."	2012-03-22 20:25:06 +00:00
server.py	object versioning	2012-03-28 15:48:43 -05:00
updater.py	Merge "Only rewrite async-pending files if the data changed"	2012-03-26 09:39:17 +00:00