grcov

Build Status Build status codecov

grcov collects and aggregates code coverage information for multiple source files.

Usage

  1. Download grcov from https://github.com/mozilla/grcov/releases.
  2. Run grcov:

Usage: grcov DIRECTORY[...] [-t OUTPUT_TYPE] [-s SOURCE_ROOT] [--token COVERALLS_REPO_TOKEN] You can specify one or more directories, separated by a space. OUTPUT_TYPE can be one of: - (DEFAULT) ade for the ActiveData-ETL specific format; - lcov for the lcov INFO format; - coveralls for the Coveralls specific format. SOURCE_ROOT is the root directory of the source files, required for the 'coveralls' format. REPO_TOKEN is the repository token from Coveralls, required for the 'coveralls' format.

Let's see a few examples, assuming the source directory is ~/Documenti/mozilla-central and the build directory is ~/Documenti/mozilla-central/build.

LCOV output

sh grcov ~/Documenti/mozilla-central/build -t lcov > lcov.info

As the LCOV output is compatible with lcov, genhtml can be used to generate a HTML summary of the code coverage: sh genhtml -o report/ --show-details --highlight --ignore-errors source --legend lcov.info

Coveralls/Codecov output

sh grcov ~/Documenti/FD/mozilla-central/build -t coveralls -s ~/Documenti/FD/mozilla-central --token YOUR_COVERALLS_TOKEN > coveralls.json

Build & Test

``` cargo build

By default, the binary is generated in ./target/debug/grcov

```

To test the binary: cargo test

Minimum requirements