deploy.yml

name: Actionsflow Site Deploy
on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:
  repository_dispatch:
    types: [redeploy]
jobs:
  init:
    runs-on: ubuntu-latest
    # outpus result type is string, true will be "true"
    outputs:
      sourceBranch: ${{ steps.sourceBranch.outputs.result }}
      deployBranch: ${{ steps.deployBranch.outputs.result }}
      isDeployBranchExist: ${{ steps.isDeployBranchExist.outputs.result }}
      isSourceBranch: ${{ steps.isSourceBranch.outputs.result }}
      isValidForBuild: ${{ steps.isValidForBuild.outputs.result }}
    steps:
      - id: sourceBranch
        name: get source branch
        uses: actions/github-script@v2
        with:
          script: |
            return 'main'
          result-encoding: string
      - id: deployBranch
        name: get deploy branch
        uses: actions/github-script@v2
        with:
          script: |
            return 'gh-pages'
          result-encoding: string
      - id: isSourceBranch
        name: get current branch is source branch
        uses: actions/github-script@v2
        env:
          SOURCE_BRANCH: ${{ steps.sourceBranch.outputs.result }}
        with:
          script: |
            if(`refs/heads/${process.env.SOURCE_BRANCH}` === context.ref){
              return true
            }else{
              return false
            }
          result-encoding: string
      - id: isDeployBranchExist
        name: get is deploy branch exist
        uses: actions/github-script@v2
        env:
          DEPLOY_BRANCH: ${{ steps.deployBranch.outputs.result }}
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            return github.repos.getBranch({
              owner: context.repo.owner,
              repo: context.repo.repo,
              branch: process.env.DEPLOY_BRANCH
            }).then(data=>{
              return true;
            }).catch((e)=>{
              if(e && e.status===404){
                // then manual trigger
                return false
              }else{
                core.setFailed('check isDeployBranchExist error: ',e.message)
              }
            })
      - id: isValidForBuild
        name: check if valid for build
        uses: actions/github-script@v2
        env:
          RESPONSE: ${{ steps.blogaAuth1ClientResponse.outputs.response }}
        with:
          script: |
            if(process.env.SSH_DEPLOY_KEY){
              return true
            }else{
              return false
            }
          result-encoding: string

  build:
    needs: init
    runs-on: ubuntu-latest
    name: Build
    steps:
      - name: Dump INIT_OUTPUTS
        run: echo $INIT_OUTPUTS
        env:
          INIT_OUTPUTS: ${{ toJson(needs.init.outputs) }}
      - name: checkout repo
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Get gatsby cache key from last build
        id: get-gatsby-latest-cache-key-file
        if: needs.init.outputs.isDeployBranchExist == 'true'
        uses: actions/checkout@v2
        continue-on-error: true
        with:
          ref: ${{ needs.init.outputs.deployBranch }}
          path: .bloga-last-build
      - name: Get gatsby-latest-cache-key content
        if: ${{ steps.get-gatsby-latest-cache-key-file.outcome == 'success' }}
        id: gatsby-latest-cache-key
        run: echo "::set-output name=key::$(cat .bloga-last-build/_gatsby-latest-cache-key.txt)"
      - name: Get yarn cache directory
        id: yarn-cache-dir
        run: echo "::set-output name=dir::$(yarn cache dir)"
      - name: Gatsby cache directory restore
        uses: actions/cache@v2
        if: ${{ steps.gatsby-latest-cache-key.outcome == 'success' }}
        with:
          key: ${{ runner.os }}-${{ steps.gatsby-latest-cache-key.outputs.key }}
          path: |
            .cache
            public
      - name: Yarn cache
        uses: actions/cache@v2
        with:
          path: ${{ steps.yarn-cache-dir.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-
      - name: Yarn install
        run: "yarn --pure-lockfile"
      - name: Build app
        run: yarn build
      - name: Get gatsby latest cache folder hash
        id: gatsby-latest-cache-hash
        uses: theowenyoung/folder-hash@v2.0.1
        with:
          path: |
            .cache
            public
      - name: Save gatsby cache directory
        uses: actions/cache@v2
        with:
          key: ${{ runner.os }}-gatsby-cache-directory-${{ steps.gatsby-latest-cache-hash.outputs.hash}}
          path: |
            .cache
            public
      - name: Save cache key to file
        run: echo gatsby-cache-directory-${{ steps.gatsby-latest-cache-hash.outputs.hash}} > public/_gatsby-latest-cache-key.txt
      - name: Deploy
        uses: peaceiris/actions-gh-pages@v3.6.1
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./public
          force_orphan: true
          publish_branch: ${{ needs.init.outputs.deployBranch }}
          user_name: "github-actions[bot]"
          user_email: "github-actions[bot]@users.noreply.github.com"
          cname: ${{ needs.init.outputs.cname }}