publish-to-npm.yml

name: publish-to-npm
run-name: ${{ github.actor }} is publishing to npm
on:
  workflow_dispatch:
    inputs:
      bump_level:
        description: type of version bump
        type: choice
        default: patch
        required: true
        options:
          - patch
          - minor
          - major
          - custom (use custom_bump_level)
      custom_bump_level:
        description: version to bump to
        type: string

jobs:
  build-and-publish:
    name: build and publish package
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-tags: true
      - uses: actions/setup-node@v3
        with:
          node-version-file: './.nvmrc'
          cache: npm
      - name: "install deps"
        run: npm ci
      - name: "export login token"
        env:
          NPM_TOKEN: ${{ secrets.NPM_CLASSIC_TOKEN }}
        run: "echo //registry.npmjs.org/:_authToken=$NPM_TOKEN > ./.npmrc"
      - env:
          BUMP_LEVEL: ${{ inputs.bump_level }}
        run: "echo $BUMP_LEVEL"
      - if: ${{ inputs.bump_level != 'custom' }}
        name: "bump version"
        env:
          VERSION: ${{ inputs.bump_level }}
        run: "npm version $VERSION --dry-run"
      - if: ${{ inputs.bump_level == 'custom' }}
        name: "custom version bump"
        env:
          VERSION: ${{ inputs.custom_bump_level }}
        run: "[ -n $VERSION ] && npm version $VERSION --dry-run || (echo 'custom version indicated but not set' && false)"
      - name: "publishing"
        run: "npm publish --dry-run"