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domruf

setup: limit WebTest version to <2.0

Running
pip install -e .
in a clean environment (or --upgrade), would cause:
"ContextualVersionConflict: (WebOb 1.1.1 (.../lib/python2.7/site-packages), Requirement.parse('WebOb>=1.2'), set(['WebTest']))"

setup.py required webob>=1.0.8,<=1.1.1 which pip resolved as WebOb==1.1.1.
setup.py required Pylons which requires WebTest>=1.3.1. Pip would thus install
the latest WebTest-2.0.23 ... which however has a WebOb>=1.2 dependency.
Pip only makes one pass at resolving dependencies and it would not resolve or
notice this inconsistency.

This problem came with dd676fdeda0f which moved pinning of WebTest 1.4.3 out of
setup.py.

Since Pylons require webtest anyway, there is no point in having it as a dev
requirement only - put it back in setup.py.

This might just be a temporary workaround until the WebOb version is updated.

Original patch by Dominik has been rewritten by Mads.

.. _statistics:

=====================
Repository statistics
=====================

Kallithea has a *repository statistics* feature, disabled by default. When
enabled, the amount of commits per committer is visualized in a timeline. This
feature can be enabled using the ``Enable statistics`` checkbox on the
repository ``Settings`` page.

The statistics system makes heavy demands on the server resources, so
in order to keep a balance between usability and performance, statistics are
cached inside the database and gathered incrementally.

When Celery is disabled:

  On each first visit to the summary page a set of 250 commits are parsed and
  added to the statistics cache. This incremental gathering also happens on each
  visit to the statistics page, until all commits are fetched.

  Statistics are kept cached until additional commits are added to the
  repository. In such a case Kallithea will only fetch the new commits when
  updating its statistics cache.

When Celery is enabled:

  On the first visit to the summary page, Kallithea will create tasks that will
  execute on Celery workers. These tasks will gather all of the statistics until
  all commits are parsed. Each task parses 250 commits, then launches a new
  task.