npm-publish.yml

name: npm-publish
on:
  push:
    branches:
      - main

env:
  NPM_TAG: latest

jobs:
  publish:
    name: Publish to NPM
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 2

      - name: Detect a version change and tag the new version
        uses: steve9164/action-detect-and-tag-new-version@v1
        id: detect
        with:
          tag-template: "{VERSION}"
          use-annotated-tag: "true"
          tagger-name: Terria Bot via GitHub Actions
          tagger-email: TerriaBot@users.noreply.github.com

      - name: Version update detected
        if: steps.detect.outputs.previous-version != steps.detect.outputs.current-version
        run: 'echo "Version change from ${{steps.detect.outputs.previous-version}} to ${{steps.detect.outputs.current-version}} detected"'

      - name: Set up Node.js for NPM
        if: steps.detect.outputs.previous-version != steps.detect.outputs.current-version
        uses: actions/setup-node@v2
        with:
          registry-url: "https://registry.npmjs.org"
          node-version: "14.x"

      - name: Install yarn
        if: steps.detect.outputs.previous-version != steps.detect.outputs.current-version
        run: npm install -g yarn@^1.19.0

      - name: Install dependencies
        if: steps.detect.outputs.previous-version != steps.detect.outputs.current-version
        run: yarn install --ignore-engines
        env:
          NODE_OPTIONS: "--max_old_space_size=8192"

      - name: Lint and build terriajs
        if: steps.detect.outputs.previous-version != steps.detect.outputs.current-version
        run: npx gulp lint release
        env:
          NODE_OPTIONS: "--max_old_space_size=8192"

      - name: Publish package to NPM
        if: steps.detect.outputs.previous-version != steps.detect.outputs.current-version
        run: npm publish --tag ${NPM_TAG}
        env:
          NODE_OPTIONS: "--max_old_space_size=8192"
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      # These slack success and failure message actions can be combined but it means there'll be no notification on a failed
      #  action-detect-and-tag-new-version. It also allows for a bit better message customisation
      - name: Send success notification on Slack
        if: steps.detect.outputs.previous-version != steps.detect.outputs.current-version
        uses: 8398a7/action-slack@v3
        with:
          status: ${{ job.status }}
          fields: repo,commit,action,ref
          author_name: ${{ github.workflow }}
          mention: here
          if_mention: always
          text: ":white_check_mark: Published v${{ steps.detect.outputs.current-version }} to https://www.npmjs.com/package/terriajs"
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} # required

      - name: Send failure or cancellation notification on Slack
        if: failure() || cancelled() # Pick up events even if the job fails or is canceled.
        uses: 8398a7/action-slack@v3
        with:
          status: ${{ job.status }}
          fields: repo,commit,action,ref
          author_name: ${{ github.workflow }}
          mention: here
          if_mention: always
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} # required