Appendix G — Rhino CI/CD

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The rhino framework includes the following GitHub Actions workflow file with new apps:

.github/workflows/rhino-test.yml

name: Rhino branch test, 20_rhino
name: Rhino Test
on: push
permissions:
  contents: read
  
jobs:
  main:
    name: Run linters and tests
    runs-on: ubuntu-20.04
    env:
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v2

      - name: Extract R version from lockfile
        run: printf 'R_VERSION=%s\n' "$(jq --raw-output .R.Version renv.lock)" >> $GITHUB_ENV

      - name: Setup R
        uses: r-lib/actions/setup-r@v2
        with:
          r-version: ${{ env.R_VERSION }}

      - name: Setup system dependencies
        run: >
          sudo apt-get update && sudo apt-get install --yes
          libcurl4-openssl-dev

      - name: Restore renv from cache
        uses: actions/cache@v2
        env:
          CACHE_KEY: renv-${{ runner.arch }}-${{ runner.os }}-${{ env.R_VERSION }}
        with:
          path: renv/library
          key: ${{ env.CACHE_KEY }}-${{ hashFiles('renv.lock') }}
          restore-keys: ${{ env.CACHE_KEY }}-

      - name: Sync renv with lockfile
        shell: Rscript {0}
        run: |
          options(renv.config.cache.symlinks = FALSE)
          renv::restore(clean = TRUE)

      - name: Setup Node
        uses: actions/setup-node@v2
        with:
          node-version: 16

      - name: Lint R
        if: always()
        shell: Rscript {0}
        run: rhino::lint_r()

      - name: Lint JavaScript
        if: always()
        shell: Rscript {0}
        run: rhino::lint_js()

      - name: Lint Sass
        if: always()
        shell: Rscript {0}
        run: rhino::lint_sass()

      - name: Build JavaScript
        if: always()
        shell: Rscript {0}
        run: rhino::build_js()

      - name: Build Sass
        if: always()
        shell: Rscript {0}
        run: rhino::build_sass()

      - name: Run R unit tests
        if: always()
        shell: Rscript {0}
        run: rhino::test_r()

      - name: Run Cypress end-to-end tests
        if: always()
        uses: cypress-io/github-action@v5
        with:
          working-directory: .rhino # Created by earlier commands which use Node.js
          start: npm run run-app
          project: ../tests
          wait-on: 'http://localhost:3333/'
          wait-on-timeout: 60

The sections are described below:

G.1 Trigger

The .github/workflows/rhino-test.yml file runs on pushes to the repo containing a rhino app.

name: Rhino Test
on: push

G.2 Permissions

The workflow only has read permission for the repository. Read more about setting permissions here.

permissions:
  contents: read

G.3 Jobs

rhino-test.yml contains a single job named main with the following steps:

jobs:
  main:
    name: Run linters and tests
    runs-on: ubuntu-20.04
    env:
      R_VERSION: '4.1.0'
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}

G.3.1 Step: Checkout Code, R version, Dependencies

Checks out the code using actions/checkout@v2, extracts the R version from a lockfile (renv.lock) and sets it as an environment variable (env.R_VERSION), and uses apt-get to install system dependencie (libcurl4-openssl-dev)

    steps:
      - name: Checkout repo
        uses: actions/checkout@v2

      - name: Setup R
        uses: r-lib/actions/setup-r@v1
        with:
          r-version: ${{ env.R_VERSION }}

      - name: Setup system dependencies
        run: >
          sudo apt-get update && sudo apt-get install --yes
          libcurl4-openssl-dev

G.3.2 Step: Restore and sync renv

The R dependencies in renv.lock are restored from cache with actions/cache@v2, then the R environment is synchronized with the lockfile (ensuring all necessary R packages are installed).

      - name: Restore renv from cache
        uses: actions/cache@v2
        env:
          CACHE_KEY: renv-${{ runner.arch }}-${{ runner.os }}-${{ env.R_VERSION }}
        with:
          path: renv/library
          key: ${{ env.CACHE_KEY }}-${{ hashFiles('renv.lock') }}
          restore-keys: ${{ env.CACHE_KEY }}-
          
      - name: Sync renv with lockfile
        shell: Rscript {0}
        run: |
          options(renv.config.cache.symlinks = FALSE)
          renv::restore(clean = TRUE)

G.3.3 Step: Node.js

The Node.js environment is set up with version 16.

      - name: Setup Node
        uses: actions/setup-node@v2
        with:
          node-version: 16

G.3.4 Step: Linters

Lints R (rhino::lint_r()), JavaScript (rhino::lint_js()), and Sass (rhino::lint_sass()) code for quality and style consistency.

      - name: Lint R
        if: always()
        shell: Rscript {0}
        run: rhino::lint_r()

      - name: Lint JavaScript
        if: always()
        shell: Rscript {0}
        run: rhino::lint_js()

      - name: Lint Sass
        if: always()
        shell: Rscript {0}
        run: rhino::lint_sass()

G.3.5 Step: Unit Tests

Executes testthat unit tests written in R (rhino::test_r())

      - name: Run R unit tests
        if: always()
        shell: Rscript {0}
        run: rhino::test_r()

G.3.6 Step: Cypress End-to-End Tests

Specifies the working directory .rhino/, starting command for the application (npm run run-app), project directory for tests (../tests), URL to wait for ('http://localhost:3333/'), and a timeout for waiting (60) for Cypress to run end-to-end tests.

      - name: Run Cypress end-to-end tests
        if: always()
        uses: cypress-io/github-action@v5
        with:
          working-directory: .rhino # Created by earlier commands which use Node.js
          start: npm run run-app
          project: ../tests
          wait-on: 'http://localhost:3333/'
          wait-on-timeout: 60