MimicDB
-------

|PyPI| |Build Status| |Coverage Status|

Python Implementation of MimicDB
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

The Python implementation of MimicDB works with the Boto library and several
different backends including Redis.

Installation
^^^^^^^^^^^^

By default, MimicDB requires Redis (although other backends can be used
instead).

::

    $ pip install boto
    $ pip install redis
    $ pip install mimicdb

Quickstart
^^^^^^^^^^

If you're using Boto already, replace ``boto`` imports with ``mimicdb``
imports.

Change:

::

    from boto.s3.connection import S3Connection
    from boto.s3.key import Key

To:

::

    from mimicdb.s3.connection import S3Connection
    from mimicdb.s3.key import Key

Additionally, import the MimicDB object itself, and initiate the
backend:

::

    from mimicdb import MimicDB
    MimicDB()

After establishing a connection for the first time, sync the connection
to save the metadata locally:

::

    conn = S3Connection(KEY, SECRET)
    conn.sync()

Or sync only a couple buckets from the connection:

::

    conn.sync('bucket1', 'bucket2')

After that, upload, download and list as you usually would. API calls
that can be responded to locally will return instantly without hitting
S3 servers. API calls that are made to S3 using MimicDB will be mimicked
locally to ensure consistency with the remote servers.

Pass ``force=True`` to most functions to force a call to the S3 API.
This also updates the local database.

Alternate Backends
^^^^^^^^^^^^^^^^^^

Besides the default Redis backend, MimicDB has SQLite and in-memory
backends available.

::

    from mimicdb.backends.sqlite import SQLite
    MimicDB(SQLite())

::

    from mimicdb.backends.memory import Memory
    MimicDB(Memory())

Documentation
^^^^^^^^^^^^^

`mimicdb.readthedocs.org <http://mimicdb.readthedocs.org>`_

Contributing
^^^^^^^^^^^^

1. Fork the repo.
2. Run tests to ensure a clean, working slate.
3. Improve/fix the code.
4. Add test cases if new functionality introduced or bug fixed (100%
   test coverage).
5. Ensure tests pass.
6. Push to your fork and submit a pull request to the develop branch.

Tests
^^^^^

Run tests after installing nose and coverage.

::

    $ nosetests --with-coverage --cover-package=mimicdb

Integration testing is provided by Travis-CI at
`travis-ci.org/nathancahill/mimicdb <https://travis-ci.org/nathancahill/mimicdb>`_

Test coverage reporting is provided by Coveralls at
`coveralls.io/r/nathancahill/mimicdb <https://coveralls.io/r/nathancahill/mimicdb>`_

Benchmarks
^^^^^^^^^^

Run ``benchmarks.py`` in the root of the repo:

::

    $ python benchmarks.py
    Boto Time: 0.338411092758
    MimicDB Time: 0.00015789039612
    Factor: 2143x faster

License
^^^^^^^

MimicDB is BSD licensed.

.. |PyPI| image:: http://img.shields.io/pypi/v/mimicdb.svg?style=flat
   :target: https://pypi.python.org/pypi/mimicdb/
.. |Build Status| image:: http://img.shields.io/travis/nathancahill/mimicdb/master.svg?style=flat
   :target: https://travis-ci.org/nathancahill/mimicdb
.. |Coverage Status| image:: http://img.shields.io/coveralls/nathancahill/mimicdb/master.svg?style=flat
   :target: https://coveralls.io/r/nathancahill/mimicdb
