ci.yml

name: CI

on: [push, pull_request]

jobs:
    lint-build-test-scan:
        name: Lint, build, test, scan
        runs-on: ubuntu-latest

        strategy:
            matrix:
                node: [16, 15, 14, 13, 12, 11]
            fail-fast: false

        steps:
            - name: Checkout push or pull request HEAD
              uses: actions/checkout@v2
            - name: Convert the shallow clone to an unshallow one
              run: git fetch --unshallow
            - name: Request the number of commits on the pull request
              id: number_of_commits_on_pr_request
              if: github.event_name == 'pull_request'
              uses: octokit/graphql-action@v2.x
              with:
                  query: |
                      query NumberOfCommitsOnPR($repositoryowner: String!, $repositoryname: String!, $prnumber: Int!) {
                          repository(owner: $repositoryowner, name: $repositoryname) {
                              pullRequest(number: $prnumber) {
                                  commits {
                                      totalCount
                                  }
                              }
                          }
                      }
                  repositoryowner: ${{ github.event.repository.owner.login }}
                  repositoryname: ${{ github.event.repository.name }}
                  prnumber: ${{ github.event.number }}
              env:
                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
            - name: Get the number of commits on the pull request from the response
              id: number_of_commits_on_pr_result
              if: github.event_name == 'pull_request'
              uses: gr2m/get-json-paths-action@v1.x
              with:
                  json: ${{ steps.number_of_commits_on_pr_request.outputs.data }}
                  commits_count: 'repository.pullRequest.commits.totalCount'
            - name: Check if the number of commits on the pull request is equal to one
              if: github.event_name == 'pull_request'
              run: |
                  if [ "${{ steps.number_of_commits_on_pr_result.outputs.commits_count }}" -ne 1 ]; then
                      echo "The pull request must consist of exactly one commit. Please squash your commits into one."
                      exit 1
                  fi
            - name: Set up Node.js version
              uses: actions/setup-node@v1
              with:
                  node-version: ${{ matrix.node }}
            - name: Install dependencies
              run: npm ci
            - name: Lint the commit message of the pull request
              if: github.event_name == 'pull_request'
              run: npx commitlint --from HEAD^ --to HEAD --config .commitlintrc.json
            - name: Lint the code
              run: npm run lint
            - name: Build the code
              run: npm run build
            - name: Test the code
              run: npm run test