Looks like it's built into Hackage and not just in the Readme. The bytestring package is a good example with several badges including code coverage; if you click the "Build | InstallOK" badge, you get a more detailed report.

https://hackage.haskell.org/package/bytestring

On Sat, May 7, 2022 at 11:46 AM Mikolaj Konarski <mikolaj@well-typed.com> wrote:

Hi Ivan,

Was that icon just a part of a README? If not, could you

give a link?

In any case, people at the #hackage Matrix/IRC channel may

know about any plans to add that (#hackage is a shared room

for Hackage and related topics such as ghcup, cabal,

Stackage-Hackage interoperation, etc.; all are welcome).

Cheers,

Mikolaj

On Sat, May 7, 2022 at 7:31 PM Ivan Perez <ivanperezdominguez@gmail.com> wrote:

Hi all,

What analysis does the hackage server run to determine the coverage level of, or rating given to, a particular package?

For example, for one package it is showing this icon:

https://img.shields.io/static/v1?label=Coverage&message=32%&color=red

What does that actually mean? The build log states:

Code Coverage

expressions		32% (224/684)
boolean	guards	100% (0/0)
	conditions	20% (1/5)
	qualifiers	100% (0/0)
alternatives		27% (5/18)
local declarations		40% (6/15)
top-level declarations		32% (29/90)

Is it possible to see details of how hackage is arriving to these conclusion, and to replicate these results locally?

Thanks,

Ivan

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