get-pr-info.yaml

name: Get info on PR
on:
  pull_request_target:
    branches: [main]
    types: [labeled,opened,reopened,synchronize]

env:
  PLATFORMSH_CLI_NO_INTERACTION: 1
  PLATFORM_PROJECT: ${{ vars.PROJECT_ID }}
  PLATFORMSH_CLI_DEFAULT_TIMEOUT: 60 # Increase timeout for CLI commands
  BRANCH_TITLE: ${{ vars.BFF_PREFIX }}-${{ github.event.number }}
  UPSUN_DOCS_PREFIX: "https://docs.upsun.com"
jobs:
  get_pr_info:
    runs-on: ubuntu-latest
    name: Get info on build from PR
    # Run only for PRs from default repo and approved PRs from forks
    if: github.event.pull_request.head.repo.id == 21975579 || contains(github.event.pull_request.labels.*.name, 'build-fork')
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Set branch name
        id: branch_name
        run: |
          # For PRs from non-forked repos
          if [ ${{ github.event.pull_request.head.repo.id }} == 21975579 ]; then
            branch_name="${{ github.event.pull_request.head.ref }}"

          # For PRs from forks
          else
            branch_name="${{ env.BRANCH_TITLE }}"
          fi
          echo "::notice::Setting branch name to ${branch_name}."
          echo "branch_name=${branch_name}" >> $GITHUB_OUTPUT

      # Set up workflow environment to use the Platform.sh CLI
      - name: Set up Platform.sh CLI
        uses: ./.github/actions/set-up-cli

      # Get the URL for the deployed environment
      - name: Get environment URL
        env:
          PLATFORMSH_CLI_TOKEN: ${{ secrets.PLATFORMSH_CLI_TOKEN }}
        id: get_env_url
        run: |
          COMMIT_STATUS="pending"

          # Get the state of the most recent deployment activity
          # run commands in workflows are are automatically launched with shell: /usr/bin/bash -e {0}. If for some
          # reason the psh cli errors (e.g. branch hasn't reached psh and therefore doesnt exist, api times out, etc)
          # this will cause our workflow to exit. Instead, call the cli with an | true so we can attempt to query again
          STATE=$(platform activities --format plain --type "environment.push environment.activate environment.redeploy environment.branch" --no-header --columns "state" --limit 1 --environment ${{ steps.branch_name.outputs.branch_name }} || true)
          echo "::notice::Attempting to retrieve deployed environment URL. Current state is: ${STATE}"
          # Set tries to 0 to start countdown to timeout
          STATUS_TRY=1
          # We'll try up to 20 minutes, so (SLEEP_TIME*NUM_ATTEMPTS)/60 = 10*
          SLEEP_TIME=10
          NUM_ATTEMPTS=120

          # Wait until state is complete or 20 minutes has passed
          until [ "${STATE}" = "complete" ] || [ ${STATUS_TRY} = ${NUM_ATTEMPTS} ]; do
            sleep ${SLEEP_TIME}
            echo "::notice::Environment is not deployed. Attempting to retrieve deployed status. Attempt ${STATUS_TRY} of ${NUM_ATTEMPTS}."
            STATE=$(platform activities --format plain --type "environment.push environment.activate environment.redeploy environment.branch" --no-header --columns "state" --limit 1 --environment ${{ steps.branch_name.outputs.branch_name }} || true)
            echo "::notice::Status retrieved: ${STATE}"

            if [ "${STATE}" = "complete" ]; then
              echo "::notice::Activity is complete."
            fi

            # we want to clear the cli cache every 3rd attempt in case it is caching too heavily
            if [ $(expr ${STATUS_TRY} % 3) = 0 ]; then
              echo "Clearing the cli cache..."
              platform clear-cache
            fi

            STATUS_TRY=$((++STATUS_TRY))
          done

          # Get the URL of the environment
          ENV_URL=$(platform url --primary --pipe --environment ${{ steps.branch_name.outputs.branch_name }})

          # Get the status of the build activity
          COMMIT_STATUS=$(platform activities --format plain --type "environment.push environment.activate environment.redeploy environment.branch" --no-header --columns "result" --limit 1 --environment ${{ steps.branch_name.outputs.branch_name }})

          # Report findings
          echo "The Platform.sh environment is:"
          echo "$COMMIT_STATUS"
          if [ "$COMMIT_STATUS" = "success" ]; then
            echo "Environment deployed to:"
            echo "$ENV_URL"
          fi

          # Report the final statuses to be used in future jobs
          echo "env_status=$COMMIT_STATUS" >> $GITHUB_OUTPUT
          echo "env_url=$ENV_URL" >> $GITHUB_OUTPUT

      - name: Make artifact files
        run: |
          touch environment_url.txt
          touch pr_comment.txt

      - name: Save PR number
        if: ${{ always() }}
        run: echo ${{ github.event.number }} > pr_number.txt

      - name: Save PR SHA
        if: ${{ always() }}
        run: echo "${{ github.event.pull_request.head.sha }}" > pr_sha.txt

      # If no environment URL, create a report of that
      - name: Create failure report
        if: steps.get_env_url.outputs.env_status == 'failure'
        run: |
          echo -e "The environment on Platform.sh failed to deploy. :slightly_frowning_face:\n\nCheck the logs: https://console.platform.sh/projects/${{ env.PLATFORM_PROJECT }}/${{ steps.branch_name.outputs.branch_name }}" > pr_comment.txt

      # Create a list of relevant changed pages
      - name: Report environment URL
        if: steps.get_env_url.outputs.env_status == 'success'
        run: |
          echo ${{ steps.get_env_url.outputs.env_url }} > environment_url.txt

      - name: Get changed files
        if: steps.get_env_url.outputs.env_status == 'success'
        id: changed-files
        uses: tj-actions/changed-files@v41
        with:
          sha: ${{ github.event.pull_request.head.sha }}
          base_sha: ${{ github.event.pull_request.base.sha }}

      # Create a list of relevant changed pages
      - name: Get list of changed files
        if: steps.get_env_url.outputs.env_status == 'success'
        id: get-files
        env:
          ENV_URL: ${{ steps.get_env_url.outputs.env_url }}
        run: |
          files_platform=()
          files_upsun=()
          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do

            # Rewrite all Markdown files in the source to be links in the final environment
            if [[ $file = "sites/platform/src/"*".md" ]]; then

              # Remove file extension
              page=${file/.md/.html}

              # Remove initial directory
              page=${page/"sites/platform/src/"/}

              # Shift index pages up a level
              page=${page/"/_index.html"/".html"}

              files_platform+=("$ENV_URL$page")
            fi

            if [[ $file = "sites/upsun/src/"*".md" ]]; then

              # Remove file extension
              page=${file/.md/.html}

              # Remove initial directory
              page=${page/"sites/upsun/src/"/}

              # Shift index pages up a level
              page=${page/"/_index.html"/".html"}

              # Adjust URL for Upsun docs.
              UPSUN_ENV_URL=${{ env.UPSUN_DOCS_PREFIX }}.${ENV_URL:8}

              files_upsun+=("$UPSUN_ENV_URL$page")
            fi

          done

          # If there are changed files for Platform.sh, return a list
          # Using "\n" here creates problems in passing data to the next step, so replace there instead
          if (( ${#files_platform[@]} != 0 )); then
            echo $(printf "||%s" "${files_platform[@]}")
            echo changed_files_platform=$(printf "||%s" "${files_platform[@]}") >> $GITHUB_OUTPUT
          else
            echo changed_files_platform="" >> $GITHUB_OUTPUT
          fi

          # If there are changed files for Upsun, return a list
          # Using "\n" here creates problems in passing data to the next step, so replace there instead
          if (( ${#files_upsun[@]} != 0 )); then
            echo $(printf "||%s" "${files_upsun[@]}")
            echo changed_files_upsun=$(printf "||%s" "${files_upsun[@]}") >> $GITHUB_OUTPUT
          else
            echo changed_files_upsun="" >> $GITHUB_OUTPUT
          fi

      # If there are changed pages, create a comment with a checklist
      - name: Comment with links
        if: steps.get-files.outputs.changed_files_platform != '' || steps.get-files.outputs.changed_files_upsun != ''
        env:
          PAGES_PLATFORM: ${{ steps.get-files.outputs.changed_files_platform }}
          PAGES_UPSUN: ${{ steps.get-files.outputs.changed_files_upsun }}
        run: |
          echo -e "Your Platform.sh environment has successfully deployed. :rocket:\n\nSee the changed pages:\n\n<details>\n<summary>Platform.sh docs</summary><br/>\n\n${PAGES_PLATFORM//||/'\n- [ ] '}\n\n</details>\n\n<details>\n<summary>Upsun docs</summary><br/>\n\n${PAGES_UPSUN//||/'\n- [ ] '}" > pr_comment.txt

      # If there are no changed pages, create a comment
      # with a link to general URL
      - name: Comment without links
        if: steps.get-files.outputs.changed_files_platform == '' && steps.get-files.outputs.changed_files_upsun == '' && steps.get_env_url.outputs.env_status == 'success'
        env:
          ENV_URL: ${{ steps.get_env_url.outputs.env_url }}
        run: |
          UPSUN_ENV_URL=${{ env.UPSUN_DOCS_PREFIX }}.${ENV_URL:8}
          echo -e "Your Platform.sh environment has successfully deployed. :rocket:\n\nSee the site:\n\n- [Platform.sh docs]($ENV_URL)\n- [Upsun docs]($UPSUN_ENV_URL)" > pr_comment.txt

      - uses: actions/upload-artifact@v2
        with:
          name: pr-info
          path: |
            environment_url.txt
            pr_comment.txt
            pr_number.txt
            pr_sha.txt
          retention-days: 1

      # If environment failed to create, fail the workflow
      - name: Fail workflow
        env:
          PLATFORMSH_CLI_TOKEN: ${{ secrets.PLATFORMSH_CLI_TOKEN }}
        if: steps.get_env_url.outputs.env_status != 'success'
        run: |
          echo "::error::The environment for pull request ${{ github.event.number }} failed to deploy. Please rerun this workflow."
          echo "The last status we received was ${{ steps.get_env_url.outputs.env_status }}"
          echo "List of activities that we ask for, but not limited to the last one:"
          platform activities --type "environment.push environment.activate environment.redeploy environment.branch" --environment ${{ steps.branch_name.outputs.branch_name }}
          echo "Now a list of the (up to) last 20 activities for branch ${{ steps.branch_name.outputs.branch_name }}:"
          platform activities --environment ${{ steps.branch_name.outputs.branch_name }} --limit 20
          # Get the ID of failed activity and output its log:
          failedID=$(platform activities --format plain --type "environment.push environment.activate environment.redeploy environment.branch" --no-header --columns "ID" --limit 1 --environment ${{ steps.branch_name.outputs.branch_name }} --result=failure)
          echo "Log for the failed activity, ID ${failedID}"
          platform activity:log ${failedID} --environment ${{ steps.branch_name.outputs.branch_name }}
          exit 1
  dont_run_nonlabeled_forks:
    name: Warn about non-labeled PRs from forks
    if: github.event.pull_request.head.repo.id != 21975579 && !contains(github.event.pull_request.labels.*.name, 'build-fork')
    runs-on: ubuntu-latest
    steps:
      - name: Warn the environment will not be built
        run: |
          echo "::warning::Pull Requests from forks will not have an environment built until they are given the appropriate label."