comment-artifacts.yml

# https://github.com/orgs/community/discussions/51403

name: Comment Artifacts

on:
  workflow_run:
    types:
      - "completed"
    workflows:
      - "Build And Test"

permissions:
  actions: read
  attestations: read
  contents: read
  pull-requests: write

jobs:
  parse-metadata:
    runs-on: ubuntu-latest
    outputs:
      PR_NUMBER: ${{ steps.metadata.outputs.PR_NUMBER }}
      HEAD_SHA: ${{ steps.metadata.outputs.HEAD_SHA }}
      ARTIFACT_ID: ${{ steps.metadata.outputs.ARTIFACT_ID }}
      ARTIFACT_URL: ${{ steps.metadata.outputs.ARTIFACT_URL }}
      ARTIFACT_EXP: ${{ steps.metadata.outputs.ARTIFACT_EXP }}
      ARTIFACT_NAME: ${{ steps.metadata.outputs.ARTIFACT_NAME }}
      JAVADOC_FOLDER: ${{ steps.metadata.outputs.JAVADOC_FOLDER }}
    steps:
      - name: Get Artifact URL & PR Info
        id: metadata
        env:
          GITHUB_TOKEN: ${{ github.token }}
          OWNER: ${{ github.repository_owner }}
          REPO: ${{ github.event.repository.name }}
          WORKFLOW_RUN_EVENT_OBJ: ${{ toJSON(github.event.workflow_run) }}
          PREVIOUS_JOB_ID: ${{ github.event.workflow_run.id }}
        run: |
          echo "Previous Job ID: $PREVIOUS_JOB_ID"

          LOG_URL="/repos/$OWNER/$REPO/actions/runs/$PREVIOUS_JOB_ID/logs"
          echo "Getting previous logs: $LOG_URL"
          gh api "$LOG_URL" >_logs.zip
          echo "Unzipping logs"
          unzip -p _logs.zip >_build.txt

          echo "Parsing logs"
          function parse_var {
            name=$1
            echo "Parsing output $name"
            line=$(cat _build.txt | grep -m 1 "output:${name}=" | cat)
            export parsed=${line#*"output:${name}="}
          }
          parse_var PR_NUMBER
          PR_NUMBER=$parsed
          echo "PR Number: $PR_NUMBER"
          echo "PR_NUMBER=$PR_NUMBER" >> "$GITHUB_OUTPUT"

          parse_var HEAD_SHA
          HEAD_SHA=$parsed
          echo "Head sha: $HEAD_SHA"
          echo "HEAD_SHA=$HEAD_SHA" >> "$GITHUB_OUTPUT"

          parse_var ARTIFACT_ID
          ARTIFACT_ID=$parsed
          echo "ARTIFACT ID: $ARTIFACT_ID"
          echo "ARTIFACT_ID=$ARTIFACT_ID" >> "$GITHUB_OUTPUT"

          parse_var ARTIFACT_URL
          ARTIFACT_URL=$parsed
          echo "ARTIFACT URL: $ARTIFACT_URL"
          echo "ARTIFACT_URL=$ARTIFACT_URL" >> "$GITHUB_OUTPUT"

          if [[ "$ARTIFACT_ID" != "" ]]; then
            ARTIFACT_INFO="$(gh api "/repos/$OWNER/$REPO/actions/artifacts/$ARTIFACT_ID")"
            ARTIFACT_EXP=$(echo "$ARTIFACT_INFO" | jq -r ".expires_at")
            echo "ARTIFACT EXP: $ARTIFACT_EXP"
            echo "ARTIFACT_EXP=$ARTIFACT_EXP" >> "$GITHUB_OUTPUT"
            ARTIFACT_NAME=$(echo "$ARTIFACT_INFO" | jq -r ".name")
            echo "ARTIFACT NAME: $ARTIFACT_NAME"
            echo "ARTIFACT_NAME=$ARTIFACT_NAME" >> "$GITHUB_OUTPUT"
          fi

          parse_var JAVADOC_FOLDER
          JAVADOC_FOLDER=$parsed
          echo "JAVADOC FOLDER: $JAVADOC_FOLDER"
          echo "JAVADOC_FOLDER=$JAVADOC_FOLDER" >> "$GITHUB_OUTPUT"

          exit 0

  comment-success:
    if: ${{ needs.parse-metadata.outputs.PR_NUMBER != '' }}
    runs-on: ubuntu-latest
    needs:
      - parse-metadata
    steps:
      - name: Find Comment
        uses: peter-evans/find-comment@v3
        id: fc
        with:
          issue-number: ${{ needs.parse-metadata.outputs.PR_NUMBER }}
          comment-author: 'github-actions[bot]'
          body-includes: '## Build Preview'

      - name: Generate Comment
        id: generate-body
        env:
          JOB_PATH: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.event.workflow_run.id }}"
          HEAD_SHA: ${{ needs.parse-metadata.outputs.HEAD_SHA }}
          ARTIFACT_URL: ${{ needs.parse-metadata.outputs.ARTIFACT_URL }}
          ARTIFACT_EXP: ${{ needs.parse-metadata.outputs.ARTIFACT_EXP }}
          ARTIFACT_NAME: ${{ needs.parse-metadata.outputs.ARTIFACT_NAME }}
          JAVADOC_FOLDER: ${{ needs.parse-metadata.outputs.JAVADOC_FOLDER }}
        run: |-
          BODY="
          ## Build Preview

          [![badge]](${JOB_PATH})

          You can find files attached to the below linked Workflow Run URL (Logs).

          | Name      | Link        |
          |-----------|-------------|
          | Commit    | ${HEAD_SHA} |
          | Logs      | ${JOB_PATH} |"

          if [ -n "$JAVADOC_FOLDER" ]; then
            BODY="${BODY}
          | JavaDoc   | <https://jcm236.github.io/Starlance/javadoc/${JAVADOC_FOLDER}/> |"
          fi

          if [ -n "$ARTIFACT_URL" ]; then
            BODY="${BODY}
          | Jar Files  | [${ARTIFACT_NAME}](${ARTIFACT_URL}) |
          | Expires At | ${ARTIFACT_EXP} |"
          fi

          BODY="${BODY}

          [badge]: https://img.shields.io/badge/${{ format('{0}-{1}', github.event.workflow_run.conclusion, github.event.workflow_run.conclusion == 'success' && '3fb950' || 'f85149') }}?style=for-the-badge&logo=github&label=build
          "

          echo "BODY<<BODY_EOF" >> "$GITHUB_OUTPUT"
          echo "$BODY" >> "$GITHUB_OUTPUT"
          echo "BODY_EOF" >> "$GITHUB_OUTPUT"

      - name: Update Comment
        uses: peter-evans/create-or-update-comment@v4
        with:
          issue-number: ${{ needs.parse-metadata.outputs.PR_NUMBER }}
          comment-id: ${{ steps.fc.outputs.comment-id }}
          edit-mode: replace
          body: ${{ steps.generate-body.outputs.BODY }}