medium-chatbot-task.yaml

apiVersion: tekton.dev/v1alpha1
kind: Task
metadata:
  name: chatbot-task
spec:
  inputs:
    resources:
    - name: repo
      type: git
    - name: pr
      type: pullRequest
    params:
    - name: comment
      type: string
    - name: author_association
      type: string
  outputs:
    resources:
    - name: pr
      type: pullRequest
  steps:
    - name: copy-pr
      image: ubuntu
      command: ["/bin/sh"]
      args:
      - -c
      - cp -r /workspace/pr/ /workspace/output/
    - name: run-command
      image: gcr.io/cloud-builders/git
      command: ["/bin/bash"]
      args:
      - -c
      - |
        set -ex
        # Skip if the PR was not opened by an OWNER
        author="$(inputs.params.author_association)"
        if [[ "$author" -ne "OWNER" ]]; then
          echo "Skipping PR, author is not an OWNER: $author"
          exit 0
        fi
        # Get the PR number from the PR URL.
        prurl="$(inputs.resources.pr.url)"
        prNum=$(echo "$prurl" | awk -F/ '{print $NF}')

        comment="$(inputs.params.comment)"
        msg=""
        case $comment in
          "/chatbot test" )
            cd /workspace/repo
            # Checkout the PR branch
            git fetch origin refs/pull/$prNum/head:pull_$prNum
            git checkout pull_$prNum
            
            # Run tests
            output=$(./test.sh)
            code=$?
            msg="Tests Passed."
            if [[ $code -ne 0 ]]; then
              msg="Tests Failed. Output: $output"
            fi;;
          /chatbot* )
            msg="Usage: /chatbot \<command\>. Current commands are: test";;
          * )
            echo "skipping command $comment, does not start with /chatbot prefix";;
        esac
        if [[ ! -z "$msg" ]]; then
          echo "$msg" > /workspace/output/pr/comments/new
        fi