Shorten module names in html report

[nedbat]

Originally reported by Ram Rachum (Bitbucket: coolrr, GitHub: coolrr)

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I have some long module names in my project.

This is making my html report too wide, which makes it hard to read in a browser because of horizontal scrolling:

{{http://i.imgur.com/NBt2s.png|screenshot}}

I would like coverage to put a '...' in the middle of long modules' names in order to shorten them. Or any other reasonable way of shortening their names to make for an easy-to-read html report. Also note that this screenshot was taken on a 1280*1024 monitor; I want to be able to see coverage reports on smaller monitors too, if possible.

A few ideas: We can put the numbers to the left of the names. We could use a smaller font for the names.

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• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/116

[nedbat]

Original comment by Vitaly Bogomolov (Bitbucket: vb, GitHub: Unknown)

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Maybe, something like this:

#!ini

[coverage:report]
path_prefix = /very/long/path/name

#!python

if path_prefix and module_name.startswith(path_prefix):
    output_name = module_name[len(path_prefix):]

path_prefix value can be shown once on the report page.
both 'report' and 'html' commands can be a target.