hpc-lcov: Convert HPC output into LCOV format

[ bsd3, control, library, program ] [ Propose Tags ]

Convert HPC output into LCOV format.

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Versions [faq] 1.0.0
Change log CHANGELOG.md
Dependencies aeson (>= && <1.5), base (>=4.9 && <5), containers (>= && <0.7), hpc (>= && <0.7), hpc-lcov, optparse-applicative (>= && <0.16), path (>=0.6.0 && <0.8), path-io (>=1.2.2 && <1.7), process (>= && <1.7), text (>= && <1.4), unordered-containers (>= && <0.3), yaml (>=0.8.24 && <0.12) [details]
License BSD-3-Clause
Author Brandon Chinn <brandon@leapyear.io>
Maintainer Brandon Chinn <brandon@leapyear.io>
Category Control
Home page https://github.com/LeapYear/hpc-lcov#readme
Bug tracker https://github.com/LeapYear/hpc-lcov/issues
Source repo head: git clone https://github.com/LeapYear/hpc-lcov
Uploaded by leapyear at Wed Feb 19 23:23:19 UTC 2020
Distributions NixOS:1.0.0
Executables hpc-lcov
Downloads 75 total (39 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2020-02-20 [all 1 reports]


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Maintainer's Corner

For package maintainers and hackage trustees

Readme for hpc-lcov-1.0.0

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codecov CircleCI Hackage

Convert HPC output into lcov.info files that can be uploaded to coverage services, like Codecov.



  1. Run stack build hpc-lcov
  2. Run your test(s) with coverage, e.g. stack test --coverage
  3. Run stack exec hpc-lcov
  4. Upload the generated lcov.info file to your coverage service


Coming soon! (https://github.com/LeapYear/hpc-lcov/issues/3)


How do I convert coverage for an executable?

Note: If you have both tests and executables, HPC will write outputs to the same file. Because of this, you'll have to load the coverage for each separately, with a stack clean in between.

  1. Build the executable with coverage enabled (e.g. stack build --coverage)
  2. Run the executable
  3. This should generate a .tix file in the current directory
  4. Run the following, specifying the package that builds the executable:
    stack exec -- hpc-lcov --file my-exe.tix --main-package my-package

How do I merge coverage files?

  1. Install LCOV (e.g. brew install lcov)

  2. Run

    lcov -a lcov1.info -a lcov2.info ... > lcov.info