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coveralls-erl

Build Status Coverage Status Hex.pm

Erlang module to convert and send cover data to coveralls. Available as a hex package on https://hex.pm/packages/coveralls.

Example usage: rebar3 and Travis CI

In order to use coveralls-erl + Travis CI in your project you will need to add the following lines to your rebar.config.script:

case os:getenv("TRAVIS") of
  "true" ->
    JobId   = os:getenv("TRAVIS_JOB_ID"),
    lists:keystore(coveralls_service_job_id, 1, CONFIG, {coveralls_service_job_id, JobId});
  _ ->
    CONFIG
end.

This will ensure that the rebar coveralls plugin will have access to the needed JobId and that the plugin is only run from Travis CI.

You will also need to add the following lines to your rebar.config:

{plugins                , [coveralls]}. % use hex package
{cover_enabled          , true}.
{cover_export_enabled   , true}.
{coveralls_coverdata    , "_build/test/cover/eunit.coverdata"}. % or a string with wildcards or a list of files
{coveralls_service_name , "travis-ci"}. % use "travis-pro" when using with travis-ci.com

When using with travis-ci.com coveralls repo token also has to be added as {coveralls_repo_token, "token_goes_here"}

These changes will add coveralls-erl as a dependency, tell rebar3 where to find the plugin, make sure that the coverage data is produced and exported and configure coveralls-erl to use this data and the service travis-ci.

And you send the coverdata to coveralls by issuing: rebar3 as test coveralls send

Note: If you have dependencies specific to the test profile, or if you only add the coveralls dependency or any of its' configuration variables to the test profile you need to run coveralls using: rebar3 as test coveralls send

Example: rebar3 and CircleCI

Example rebar.config.script:

case {os:getenv("CIRCLECI"), os:getenv("COVERALLS_REPO_TOKEN")} of
    {"true", Token} when is_list(Token) ->
        JobId   = os:getenv("CIRCLE_BUILD_NUM"),
        CONFIG1 = lists:keystore(coveralls_service_job_id, 1, CONFIG, {coveralls_service_job_id, JobId}),
        lists:keystore(coveralls_repo_token, 1, CONFIG1, {coveralls_repo_token, Token});
    _ ->
        CONFIG
end.

Example rebar.config:

{plugins                , [coveralls]}. % use hex package
{cover_enabled          , true}.
{cover_export_enabled   , true}.
{coveralls_coverdata    , "_build/test/cover/ct.coverdata"}.
{coveralls_service_name , "circle-ci"}.

Note that you'll need to set COVERALLS_REPO_TOKEN in your CircleCI environment variables!

Example usage: rebar3 and GitHub Actions

In order to use coveralls-erl + GitHub Actions in your project, you will need to add the following lines to your rebar.config.script:

case {os:getenv("GITHUB_ACTIONS"), os:getenv("GITHUB_TOKEN")} of
  {"true", Token} when is_list(Token) ->
    CONFIG1 = [{coveralls_repo_token, Token},
               {coveralls_service_job_id, os:getenv("GITHUB_RUN_ID")},
               {coveralls_commit_sha, os:getenv("GITHUB_SHA")},
               {coveralls_service_number, os:getenv("GITHUB_RUN_NUMBER")} | CONFIG],
    case os:getenv("GITHUB_EVENT_NAME") =:= "pull_request"
        andalso string:tokens(os:getenv("GITHUB_REF"), "/") of
        [_, "pull", PRNO, _] ->
            [{coveralls_service_pull_request, PRNO} | CONFIG1];
        _ ->
            CONFIG1
    end;
  _ ->
    CONFIG
end.

This will ensure that the rebar coveralls plugin will have access to the needed JobId and that the plugin is only run from GitHub Actions.

You will also need to add the following lines to your rebar.config:

{plugins                , [coveralls]}. % use hex package
{cover_enabled          , true}.
{cover_export_enabled   , true}.
{coveralls_coverdata    , "_build/test/cover/eunit.coverdata"}. % or a string with wildcards or a list of files
{coveralls_service_name , "github"}.

These changes will add coveralls-erl as a dependency, tell rebar3 where to find the plugin, make sure that the coverage data is produced and exported and configure coveralls-erl to use this data and the service github.

And you send the coverdata to coveralls by adding a step like:

- name: Coveralls
  env:
    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  run: rebar3 as test coveralls send

Other available GitHub Actions Environment Variables are available here

Optional settings

The pluging also support the coveralls_service_pull_request and coveralls_parallel settings. See the Coveralls documentation for the meaning of those.

Author

Markus Ekholm (markus at botten dot org).

License

3-clause BSD. For details see COPYING.

About

Erlang module to convert and send cover data to coveralls.io (or similar). Available as a hex package on https://hex.pm/packages/coveralls.

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