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action-ebuild-test

Automatically install an ebuild (including dependencies), run unit tests, (optionally) upload coverage reports to codecov.io and (optionally) update a live ebuild in a hosted repository.

Functionality

Once configured pushing to a branch will automatically:

  • create a new live ebuild from the supplied template
  • run the ebuild test phase
  • generate / upload test coverage reports (optional)
  • deploy to an overlay repository (optional)
  • create / update a pull request (optional)

Automatic ebuild generation on release testing can be easily included using action-ebuild-release.

Basic Use

1. Create a .gentoo folder in the root of your repository.

2. Create a live ebuild template in the appropriate sub-directory.

.gentoo/dev-libs/hacking-bash-lib/hacking-bash-lib-9999.ebuild

# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

DESCRIPTION="A library script to log output and manage the generated log files"
HOMEPAGE="https://github.com/GITHUB_REPOSITORY"
LICENSE="LGPL-3"

if [[ ${PV} = *9999* ]]; then
    inherit git-r3
    EGIT_REPO_URI="https://github.com/GITHUB_REPOSITORY"
    EGIT_BRANCH="GITHUB_REF"
else
    SRC_URI="https://github.com/GITHUB_REPOSITORY/archive/${PV}.tar.gz -> ${P}.tar.gz"
fi

KEYWORDS=""
IUSE="test"
SLOT="0"

RESTRICT="!test? ( test )"

RDEPEND="app-arch/bzip2
    mail-client/mutt
    sys-apps/util-linux"
DEPEND="test? (
    ${RDEPEND}
    dev-util/bats-assert
    dev-util/bats-file
)"

src_test() {
    bats --tap tests || die "Tests failed"
}

src_install() {
    einstalldocs

    insinto /usr/lib
    doins usr/lib/*
}

The special markers GITHUB_REPOSITORY and GITHUB_REF will be automatically replaced with appropriate values when the action is executed.

3. Create a metadata.xml file

.gentoo/dev-libs/hacking-bash-lib/metadata.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">

<pkgmetadata>
    <maintainer type="person">
        <email>overlay-maintainer@example.com</email>
        <name>Overlay Maintainer</name>
    </maintainer>
    <upstream>
        <maintainer>
	    <email>default-package-maintainer@example.com</email>
	    <name>Default Package Maintainer</name>
	</maintainer>
	<bugs-to>https://github.com/MADhacking/bash-outlogger/issues</bugs-to>
	<doc>https://github.com/MADhacking/bash-outlogger</doc>
    </upstream>
</pkgmetadata>

4. (Optional) Add any overlays required for the build / test to an overlays file.

.gentoo/overlays

mad-hacking    https://github.com/MADhacking/overlay.git

5. (Optional) Add a coverage.sh script to generate test coverage reports.

.gentoo/coverage.sh

#!/usr/bin/env bash

kcov --bash-dont-parse-binary-dir \
     --include-path=. \
     /var/tmp/coverage \
     bats -t tests

Your coverage script will need to output coverage reports to /var/tmp/coverage

6. Create a GitHub workflow file

.github/workflows/run-ebuild-tests.yml

name: Ebuild Tests

on:
  push:
    branches:
      - '**'
    tags-ignore:
      - '*.*'
    paths-ignore:
      - 'README.md'
      - 'LICENSE'
      - '.github/**'

jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
    # Check out the repository
    - uses: actions/checkout@master

    # Prepare the environment
    - name: Prepare
      id: prepare
      run: |
        echo "::set-output name=datetime::$(date +"%Y%m%d%H%M")"
        echo "::set-output name=workspace::${GITHUB_WORKSPACE}"
        mkdir -p "${GITHUB_WORKSPACE}/distfiles" "${GITHUB_WORKSPACE}/binpkgs"

    # Cache distfiles and binary packages
    - name: Cache distfiles
      id: cache-distfiles
      uses: gerbal/always-cache@v1.0.3
      with:
        path: ${{ steps.prepare.outputs.workspace }}/distfiles
        key: distfiles-${{ steps.prepare.outputs.datetime }}
        restore-keys: |
          distfiles-${{ steps.prepare.outputs.datetime }}
          distfiles
    - name: Cache binpkgs
      id: cache-binpkgs
      uses: gerbal/always-cache@v1.0.3
      with:
        path: ${{ steps.prepare.outputs.workspace }}/binpkgs
        key: binpkgs-${{ steps.prepare.outputs.datetime }}
        restore-keys: |
          binpkgs-${{ steps.prepare.outputs.datetime }}
          binpkgs

    # Run the ebuild tests
    - uses: hacking-gentoo/action-ebuild-test@v1
      env:
        # Optional code coverage token
        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
      with:
        # Option security tokens / keys for automatic deployment
        auth_token: ${{ secrets.PR_TOKEN }}
        deploy_key: ${{ secrets.DEPLOY_KEY }}
        overlay_repo: hacking-gentoo/overlay

7. (Optional) Create tokens / keys for automatic deployment

Configuring PR_TOKEN

The above workflow requires a personal access token be configured for the user running the ebuild test action.

This access token will need to be made available to the workflow using the secrets feature and will be used to authenticate when creating a new pull request.

Configuring DEPLOY_KEY

The above workflow also requires a deploy key be configured for the destination repository.

This deploy key will also need to be made available to the workflow using the secrets feature.