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Bradley M. Kuhn

Update CodeMirror CSS and Javascript files to version 3.15, under MIT-permissive license.

These files are exactly as they appear the upstream release 3.15 of
Codemirror, which was released under an MIT-permissive license. To extract
these files, I did the following:

I downloaded the following file:
http://codemirror.net/codemirror-3.15.zip
with sha256sum of:
$ sha256sum codemirror-3.15.zip
8cf3a512899852fd4e3833423ea98d34918cbf7ee0e4e0b13f8b5e7b083f21b9 codemirror-3.15.zip

And extracted from it the Javascript and CSS files herein committed, which
are licensed under the MIT-permissive license, placing them into their
locations in: rhodecode/public/{css,js}/

Using the procedure above, the only difference found between these files in
RhodeCode 2.2.5 release and herein were a few comments and whitespace.

Note that the file .../public/js/mode/meta_ext.js does *not* appear to be
part of CodeMirror and therefore is not included in this commit.

.. _statistics:

==========
Statistics
==========

The RhodeCode statistics system makes heavy demands of the server resources, so
in order to keep a balance between usability and performance, the statistics are
cached inside db and are gathered incrementally, this is how RhodeCode does
this:

With Celery disabled
--------------------

- On each first visit to the summary page a set of 250 commits are parsed and
  updates statistics cache.
- This happens on each single 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 RhodeCode will only fetch the new commits when
  updating it's cache.


With Celery enabled
-------------------

- On the first visit to the summary page RhodeCode will create tasks that will
  execute on celery workers. This task will gather all of the stats until all
  commits are parsed, each task will parse 250 commits, and run the next task to
  parse next 250 commits, until all of the commits are parsed.

.. note::
   At any time you can disable statistics on each repository via the repository
   edit form in the admin panel. To do this just uncheck the statistics checkbox.