code-release_preview.yml

# SPDX-FileCopyrightText: 2026 INDUSTRIA DE DISEÑO TEXTIL S.A. (INDITEX S.A.)
# SPDX-License-Identifier: Apache-2.0
---
name: code-release-preview

concurrency:
  group: release-preview
  cancel-in-progress: true

on:
  pull_request:
    types: [labeled, synchronize, ready_for_review, opened]
    branches: ["main", "main-*"]

env:
  PR_HEAD_REF: ${{ github.head_ref }}

jobs:
  check-changes-in-paths:
    name: Check for changes in corresponding paths
    runs-on: ubuntu-24.04
    if: ${{ github.event.pull_request.draft == false || contains(join(github.event.pull_request.labels.*.name, ', '), 'release-type') || contains(join(github.event.pull_request.labels.*.name, ', '), 'release-preview') }}
    outputs:
      detected: ${{ steps.changes.outputs.paths }}
    steps:
      - name: Check for changed files in specific paths
        id: changes
        uses: dorny/paths-filter@ebc4d7e9ebcb0b1eb21480bb8f43113e996ac77a
        with:
          filters: |
            paths:
              - "package.json"
              - "package-lock.json"
              - "CHANGELOG.md"
              - "src/**"
              - "types/**"
              - "example/**"
              - ".github/workflows/code*"

  release-preview:
    name: Release Preview
    needs: check-changes-in-paths
    if: ${{ (contains(join(github.event.pull_request.labels.*.name, ', '), 'release-type') || contains(join(github.event.pull_request.labels.*.name, ', '), 'release-preview')) && needs.check-changes-in-paths.outputs.detected == 'true' }}
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout merge commit
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: Setup patch release type version
        if: contains(github.event.pull_request.labels.*.name, 'release-type/hotfix') || contains(github.event.pull_request.labels.*.name, 'release-type/multi-hotfix') || contains(github.event.pull_request.labels.*.name, 'release-type/patch')
        run: echo "RELEASE_VERSION=patch" >> "$GITHUB_ENV"

      - name: Setup minor release type version
        if: contains(github.event.pull_request.labels.*.name, 'release-type/minor')
        run: echo "RELEASE_VERSION=minor" >> "$GITHUB_ENV"

      - name: Setup major release type version
        if: contains(github.event.pull_request.labels.*.name, 'release-type/major')
        run: echo "RELEASE_VERSION=major" >> "$GITHUB_ENV"

      - name: Check merge strategy
        run: |
          if [[ "$PR_HEAD_REF" == hotfix* && "${{ contains(github.event.pull_request.labels.*.name, 'release-type/multi-hotfix') }}" != "true" ]]; then
            echo "MERGE_STRATEGY=Squash and Merge" >> "$GITHUB_ENV"
          elif [[ "${{ vars.DEVELOPMENT_FLOW }}" == "trunk-based-development" ]]; then
            echo "MERGE_STRATEGY=Squash and Merge" >> "$GITHUB_ENV"
          else
            echo "MERGE_STRATEGY=Create a merge commit" >> "$GITHUB_ENV"
          fi

      - name: Check if CHANGELOG.md has changes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          if git diff --quiet HEAD^ HEAD -- CHANGELOG.md; then
            echo "::error title={No CHANGELOG.md changes}::{No CHANGELOG.md changes were found. Update the Unreleased section with the new changes.}"
            gh pr comment ${{ github.event.number }} --repo "$GITHUB_REPOSITORY" --body "### :x: No CHANGELOG.md changes

            No changes were found in CHANGELOG.md. Please update the Unreleased section with the changes that apply to this release."
            exit 1
          fi

      - name: Update CHANGELOG.md
        id: update-changelog
        uses: release-flow/keep-a-changelog-action@74931dec7ecdbfc8e38ac9ae7e8dd84c08db2f32 # v3.0.0
        with:
          command: bump
          version: ${{ env.RELEASE_VERSION }}
          changelog: CHANGELOG.md
          fail-on-empty-release-notes: false
          keep-unreleased-section: true
          tag-prefix: ""

      - name: Add PR comment with release preview
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TASKS=$(awk -v version="${{ steps.update-changelog.outputs.version }}" '
            BEGIN { capture=0; found_version=0 }
            $0 ~ "## \\[" version "\\] -" { capture=1; found_version=1; print; next }
            capture && $0 ~ /^## \[.*\] -/ { capture=0 }
            capture { print }
            END {
              if (found_version) {
                while ((getline line < "CHANGELOG.md") > 0) {
                  if (line ~ /^\[.*\]:/) {
                    print line
                  }
                }
              }
            }
          ' CHANGELOG.md)
          MESSAGE="
          ### :rocket: Release Preview Success
          You are going to release the version **${RELEASE_VERSION}** with the following changes:
          $TASKS

          ### 💡 Merge Strategy: $MERGE_STRATEGY

          Remember to use the **'$MERGE_STRATEGY'** strategy to merge this Pull Request (\`$PR_HEAD_REF\` → \`${{ github.event.pull_request.base.ref }}\`).
          "

          gh pr comment ${{ github.event.number }} --repo "$GITHUB_REPOSITORY" --body "$(echo -e "$MESSAGE")"

  release-preview-no-code-changes:
    name: Add PR comment with configuration management information
    needs: check-changes-in-paths
    if: ${{ (contains(join(github.event.pull_request.labels.*.name, ', '), 'release-type') || contains(join(github.event.pull_request.labels.*.name, ', '), 'release-preview')) && needs.check-changes-in-paths.outputs.detected == 'false' }}
    runs-on: ubuntu-24.04
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Add PR comment with release preview
        run: |
          gh pr comment ${{ github.event.number }} --repo "$GITHUB_REPOSITORY" --body "### :exclamation: This Pull Request will not trigger a release

          No package, source, example, changelog, or code workflow changes were detected."

  release-preview-no-release-labels:
    name: Add PR comment with release information
    needs: check-changes-in-paths
    if: ${{ !contains(join(github.event.pull_request.labels.*.name, ', '), 'release-type') && needs.check-changes-in-paths.outputs.detected == 'true' && github.event.pull_request.draft == false && vars.DEVELOPMENT_FLOW != 'trunk-based-development' }}
    runs-on: ubuntu-24.04
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Add PR comment with release preview
        run: |
          gh pr comment ${{ github.event.number }} --repo "$GITHUB_REPOSITORY" --body "### :exclamation: This Pull Request will not trigger a release

          A Pull Request with no \`release-type/...\` labels will not trigger a release, so you need to label this PR if you want to create a release."