auto-tag.yml

# This GitHub Action workflow automates the process of incrementing a version number stored in a .version file
# every time a push is made to the main branch. It performs the following steps:
# 1. Checks out the repository code.
# 2. Reads the current version from the .version file and increments it.
# 3. Commits the updated .version file back to the main branch.
# 4. Creates a new git tag with the incremented version number.
# 5. Pushes the new tag to the remote repository.

# To deploy a new version of code all you have to do is push to the main branch.
# The version number will be incremented and a new tag will be created and pushed to the remote repository.
# Then, in GitHub Releases, you can create a new release based on the tag that was just created.
# Finally, update the CDN script (jsDelivr) to point to the new version number.

name: Auto Increment Version

on:
  push:
    branches:
      - main

jobs:
  create-tag:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Read the current version and increment
        run: |
          echo "OLD_VERSION=$(cat .version)" >> $GITHUB_ENV
          NEW_VERSION=$(( $(cat .version) + 1 ))
          echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
          echo $NEW_VERSION > .version

      - name: Commit and Push Changes
        run: |
          git config --global user.name 'GitHub Action'
          git config --global user.email 'action@github.com'
          git add .version
          git commit -m "Increment version to ${{ env.NEW_VERSION }}"
          git push origin main

      - name: Tag New Version and Push Tag
        run: |
          git tag ${{ env.NEW_VERSION }}
          git push origin tag ${{ env.NEW_VERSION }}