version-check.yml

name: Version Check

on:
  push:
    branches:
      - master
      - "develop/*"

permissions:
  contents: read

jobs:
  version-check:
    name: Version Check
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v6

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: "24"
          cache: npm

      - name: Check package version availability
        shell: bash
        run: |
          set -euo pipefail

          package_name="$(node -p "require('./package.json').name")"
          package_version="$(node -p "require('./package.json').version")"
          package_spec="${package_name}@${package_version}"

          echo "Checking npm registry for ${package_spec}"

          set +e
          npm_output="$(npm view "${package_spec}" version --registry=https://registry.npmjs.org 2>&1)"
          npm_status=$?
          set -e

          if [ "${npm_status}" -eq 0 ]; then
            echo "::error::${package_spec} already exists in the npm registry."
            exit 1
          fi

          if echo "${npm_output}" | grep -Eiq "(E404|404 Not Found|not found)"; then
            echo "${package_spec} is available for publishing."
            exit 0
          fi

          echo "${npm_output}"
          echo "::error::Unable to determine whether ${package_spec} exists in the npm registry."
          exit "${npm_status}"