Apt-mirror-updater

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Added Debian archive support (with old releases):

- Addition: Added Debian archive support (old releases).
- Improvement: Don't bother validating archive / old-releases mirror.
- Refactoring: Moved URLs to backend specific modules.

.. _Release 3.0: https://github.com/xolox/python-apt-mirror-updater/compare/2.1...3.0

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Restored Python 3 compatibility, improved robustness:

- Improvement: Make the ``is_available`` and ``is_updating`` properties of the
``CandidateMirror`` class more robust.
- Bug fix: I suck at Unicode in Python (most people do :-p).
- Cleanup: Remove unused import from test suite.

.. _Release 2.1: https://github.com/xolox/python-apt-mirror-updater/compare/2.0...2.1

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Generation of ``sources.list`` files and chroot creation.

Detailed overview of changes:

- Addition: Added a simple :man:`debootstrap` wrapper.
- Addition: Programmatic ``/etc/apt/sources.list`` generation
- Bug fix for ``check_suite_available()``.
- Bug fix: Never apply Ubuntu's old release handling to Debian.
- Bug fix: Never remove ``/var/lib/apt/lists/lock`` file.
- Improvement: Enable stable mirror selection
- Improvement: Make it possible to override distributor ID and codename
- Improvement: Render interactive spinner during mirror ranking.
- Refactoring: Generalize AptMirrorUpdater initializer (backwards incompatible!)
- Refactoring: Generalize backend module loading
- Refactoring: Modularize ``/etc/apt/sources.list`` writing.

.. _Release 2.0: https://github.com/xolox/python-apt-mirror-updater/compare/1.0...2.0

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Improved Ubuntu mirror discovery, added an automated test suite, and more.

The bump to version 1.0 isn't so much intended to communicate that this
is now mature software, it's just that I made several backwards
incompatible changes in order to improve the modularity of the code
base, make it easier to develop automated tests, maintain platform
support, etc :-).

A more detailed overview of (significant) changes:

- Improved Ubuntu mirror discovery (by scraping Launchpad instead).
- Extracted mirror discovery to separate (backend specific) modules.
- Extracted HTTP handling to a separate module.
- Enable Control-C to interrupt concurrent connection tests.
- Expose limit in Python API and command line interface and make limit optional by passing 0.
- Bug fix for Python 3 incompatibility: Stop using :data:`sys.maxint` :-).

.. _Release 1.0: https://github.com/xolox/python-apt-mirror-updater/compare/0.3.1...1.0

-----------------------------

Avoid 'nested' smart updates (the old code worked fine but gave confusing
output and performed more work than necessary, which bothered me :-).

.. _Release 0.3.1: https://github.com/xolox/python-apt-mirror-updater/compare/0.3...0.3.1

---------------------------

Make smart update understand EOL suites.

.. _Release 0.3: https://github.com/xolox/python-apt-mirror-updater/compare/0.2...0.3