Blog Post Files

createTag.js

const createTag = async () => {
  const response = await fetch(
    // these environment variables are set for us in the github action
    `${process.env.GITHUB_API_URL}/repos/${process.env.GITHUB_REPOSITORY}/tags`,
    {
      headers: {
        Accept: 'application/vnd.github.v3+json',
        Authorization: `Bearer ${process.env.GITHUB_AUTH_TOKEN}`,
      },
    }
  );
  const data = await response.json();
  const mostRecentTag = data[0].name;
  // split tag on '-' to separate version from specifying number
  const [tagVersion, tagVersionNumber] = mostRecentTag.split('-');
	// remove v from our version so we have 1.1.0 instead of v1.1.0
  const cleanTag = tagVersion.replace('v', '');
	// get the new tag with the version change type
  const newTag = getNewTag(cleanTag);
	// if the tag didn't change, increment our specifying number
	// otherwise restart our specifying numbers
  const updatedTagVersionNumber =
    cleanTag === newTag ? Number(tagVersionNumber) + 1 : 1;
	// put it all back together into our tag name
  const tagName = `v${newTag}-${updatedTagVersionNumber}`;

	// create tag off of the branch that we created with our version change
  await fetch(
    `${process.env.GITHUB_API_URL}/repos/${process.env.GITHUB_REPOSITORY}/releases`,
    {
      body: JSON.stringify({
        owner: 'YOUR_REPO_OWNER',
        repo: 'YOUR_REPO',
        tag_name: tagName,
        target_commitish: process.env.BRANCH_TO_TAG,
        name: `${tagName}`,
        body: `Released at ${new Date(Date.now()).toISOString()}`,
      }),
      method: 'POST',
      headers: {
        Accept: 'application/vnd.github.v3+json',
        Authorization: `Bearer ${process.env.GITHUB_AUTH_TOKEN}`,
      },
    }
  );
};

const getNewTag = tag => {
	// 1.1.0 becomes major=1, minor=1, patch=0
  const [major, minor, patch] = tag.split('.');
  if (process.env.VERSION_CHANGE_TYPE === 'major') {
    return `${Number(major) + 1}.0.0`;
  } else if (process.env.VERSION_CHANGE_TYPE === 'minor') {
    return `${major}.${Number(minor) + 1}.0`;
  } else if (process.env.VERSION_CHANGE_TYPE === 'patch') {
    return `${major}.${minor}.${Number(patch) + 1}`;
  }

	// if we didn't specify a version change type, don't change it
  return tag;
};

tag.yml

name: Tag
on:
  workflow_dispatch:
    inputs:
      versionChangeType:
        description: 'Type of version bump (major, minor, patch, none)'
        required: true
        default: 'none'
  schedule:
    # Scheduled for 12PM UTC every Tuesday and Friday (8AM EST)
    - cron: 0 12 * * 2,5

jobs:
  create-new-tag:
    name: Create new tag with version bump
    runs-on: macos-latest
    env:
      GITHUB_AUTH_TOKEN: ${{ secrets.CI_GITHUB_PERSONAL_ACCESS_TOKEN }}
      BASE_BRANCH: 'main'
    steps:
      - name: Set environment variables
        env: 
          DEFAULT_VERSION_CHANGE_TYPE: none
          VERSION_CHANGE_BRANCH_TO_TAG: 'release/${{ github.event.inputs.versionChangeType }}-version-${{ github.run_id }}'
        run: |
          echo "VERSION_CHANGE_TYPE=${{ github.event.inputs.versionChangeType || env.DEFAULT_VERSION_CHANGE_TYPE}}" >> $GITHUB_ENV

          if [$VERSION_CHANGE_TYPE != 'none']
          then
            echo "VERSION_BUMP=true"
            echo "BRANCH_TO_TAG=${{ env.VERSION_CHANGE_BRANCH_TO_TAG }}" >> $GITHUB_ENV
          else
            echo "VERSION_BUMP=false"
            echo "BRANCH_TO_TAG=develop" >> $GITHUB_ENV
          fi
      - uses: actions/checkout@v2
        with:
          ref: ${{ env.BASE_BRANCH }}
      - name: Bump iOS version
        if: ${{ env.VERSION_BUMP == 'true'}}
        run: cd ios && bundle install && bundle exec fastlane version_bump
      - name: Create Pull Request
        if: ${{ env.VERSION_BUMP == 'true'}}
        uses: peter-evans/create-pull-request@v3
        with:
          token: ${{ secrets.CI_GITHUB_PERSONAL_ACCESS_TOKEN }}
          branch: '${{ env.BRANCH_TO_TAG }}'
          title: 'release: ${{ github.event.inputs.versionChangeType }} version release'
          commit-message: 'release: ${{ github.event.inputs.versionChangeType }} version release'
          author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
          labels: |
            release
            automated pr
          delete-branch: true
      - name: Create tag
        run: cd ci-scripts && yarn && yarn createTag