# Publishes this n8n community node package to npm on every version tag push.
#
# Starting May 1 2026, n8n requires all community nodes to be published via
# GitHub Actions with npm provenance statements. This workflow satisfies that
# requirement. Provenance lets anyone cryptographically verify that a package
# was built by this exact workflow, from this exact repository and commit.
#
# ─── PREREQUISITES ─────────────────────────────────────────────────────────────
#
# @n8n/node-cli ≥ 0.23.0 is required. Earlier versions do not support the
# provenance flag passed by `npm run release` in CI, and the publish step will
# fail. Check the version installed in this project with:
#
#   npm list @n8n/node-cli
#
# To upgrade:
#
#   npm install --save-dev @n8n/node-cli@latest
#
# ─── ONE-TIME SETUP ────────────────────────────────────────────────────────────
#
# Option A — OIDC Trusted Publishing (recommended, no long-lived secrets):
#   1. Log in to npmjs.com and open your package's settings.
#   2. Under "Publish access" → "Trusted Publishers", click "Add a publisher".
#   3. Select GitHub Actions and fill in:
#        Repository owner: <your-github-username-or-org>
#        Repository name:  <your-repo-name>
#        Workflow name:    publish.yml
#        Environment:      (leave blank unless you use GitHub Environments)
#   4. Leave the NPM_TOKEN secret unset in this repository. GitHub's OIDC
#      token is used instead — no secret ever touches your repo settings.
#
# Option B — npm Automation Token (fallback):
#   1. On npmjs.com: Access Tokens → Generate New Token → Granular Access Token.
#      Scope it to this package with "Read and write" publish permission.
#   2. In GitHub: Settings → Secrets and variables → Actions → New secret.
#      Name it NPM_TOKEN and paste the token value.
#
# Both options work with --provenance. Provenance is signed by GitHub's OIDC
# infrastructure regardless of how npm authentication is handled.
#
# ─── TAG CONVENTION ────────────────────────────────────────────────────────────
#
# This workflow triggers on tags matching "*.*.*" (e.g. 0.2.0).
# If you prefer tags with a "v" prefix (e.g. v0.2.0), change the filter to:
#   tags: ['v*.*.*']
#
# ─── RELEASE PROCESS ───────────────────────────────────────────────────────────
#
# Run the following command locally to start an interactive release:
#
#   npm run release
#
# This will lint, build, prompt for a version bump, update the changelog,
# commit, tag, and push — which triggers this workflow to publish to npm.

name: Publish

on:
  push:
    tags:
      # Matches 0.1.0, 1.2.3, 2.0.0-rc.1, etc.
      # See "TAG CONVENTION" above if you prefer tags with a "v" prefix.
      - '*.*.*'

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

    permissions:
      # Required to mint an OIDC token for npm provenance attestation.
      id-token: write
      # Scoped down from the default (write) for least-privilege publishing.
      contents: read

    steps:
      - uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 'lts/*'
          registry-url: 'https://registry.npmjs.org'
          cache: 'npm'

      - name: Upgrade npm
        run: npm install -g npm@latest

      - name: Install dependencies
        run: npm ci

      - name: Release
        # Publishes to npm with a provenance attestation (requires id-token: write above).
        # Lint and build run automatically as part of the release process.
        #
        # Option A (OIDC): leave NPM_TOKEN unset — the token step is skipped and
        #   npm uses the OIDC exchange instead.
        # Option B (token): set NPM_TOKEN in repo secrets — it is written to
        #   .npmrc here before publishing.
        run: |
          [ -n "$NPM_TOKEN" ] && npm config set //registry.npmjs.org/:_authToken "$NPM_TOKEN"
          npm run release
        env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}