On Mon, Jul 25, 2016 at 2:34 PM, Purodha Blissenbach < purodha@blissenbach.org> wrote:
Is there any tool or tutorial for this question?
For tool repositories specifically, yes: http://tools.wmflabs.org/hay/directory/
Which in this case directs you to https://github.com/MusikAnimal/pageviews
In general, there is no guarantee the source of a tool is hosted in Wikimedia's git repo (or hosted anywhere at all).