Add GPTReview Jenkins example

Author: techmaharaj

examples/gptreview-jenkins/Jenkinsfile

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+pipeline {
+    agent any
+
+    stages {
+        stage('Clean Workspace') {
+            steps {
+                deleteDir()
+            }
+        }
+
+        stage('GPT Review') {
+            steps {
+                script {
+                    checkout([
+                        $class: 'GitSCM',
+                        branches: [[name: '*/main']], // Specify branch
+                        userRemoteConfigs: [[
+                            url: '' // Provide the URL for your repo that has the codereview.gpt file.
+                        ]]
+                    ])
+
+                    withCredentials([string(credentialsId: 'OPENAI_API_KEY', variable: 'OPENAI_API_KEY')]){
+                        withCredentials([string(credentialsId: 'GH_TOKEN', variable: 'GH_TOKEN')]) {
+                            // GPTSCript reviews the code
+                            REVIEW = sh(script: "gptscript codereview.gpt --PR_URL=${PR_URL}", returnStdout: true).trim()
+                            
+                            // Construct the JSON payload using Groovy's JSON library
+                            def jsonPayload = groovy.json.JsonOutput.toJson([body: REVIEW])
+
+                            // Post the review comment to the GitHub PR
+                            sh "curl -H \"Authorization: token ${GH_TOKEN}\" -H \"Content-Type: application/json\" -X POST -d '${jsonPayload}' '${PR_COMMENTS_URL}'"
+                    }
+                    }
+                }
+            }
+        }
+
+        stage('Check PR Status') {
+            steps {
+                script {
+                    // Check if REVIEW contains 'Require Changes'
+                    if (REVIEW.contains('Require Changes')) {
+                        echo 'Code Requires Changes'
+                        currentBuild.result = 'FAILURE' // Mark the build as failed
+                        error 'Code Requires Changes' // Terminate the build with an error
+                    }
+                    
+                    // Check if REVIEW contains 'Approved'
+                    if (REVIEW.contains('Approved')) {
+                        echo 'Code Approved'
+                    }
+                }
+            }
+        }
+    }
+}

examples/gptreview-jenkins/README.md

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+# GPTReview With Jenkins
+
+This folder contains an example of building and implementing your own code reviewer as part of Jenkins Pipeline. 
+
+Below are the files present here:
+
+- `codereview.gpt`: Contains the GPTScript code and prompts.
+- `Jenkinsfile`: Jenkins pipeline file.
+
+## Pre-requisites
+
+- An OpenAI API Key.
+- GitHub repository.
+- Jenkins.
+- [GPTScript](https://github.com/gptscript-ai/gptscript) and [GH](https://github.com/cli/cli) CLI installed on the system running Jenkins.
+
+## How To Run This Example
+
+- Create a new repository in your GitHub account and create a `codereview.gpt` file in the root of that repo based on the contents provided in this file.
+- Configure Jenkins:
+  - Install required plugins - [GitHub](https://plugins.jenkins.io/github/), [Generic Webhook Trigger Plugin](https://plugins.jenkins.io/generic-webhook-trigger/) & [HTTP Request Plugin](https://plugins.jenkins.io/http_request/).
+  - Create a Pipeline
+  - Configure the “Open_AI_API” and “GH_TOKEN” environment variables
+
+- Congfigure GitHub:
+  - Setup up Webhook by providing your Jenkins pipeline URL: `http://<jenkins-url>/generic-webhook-trigger/invoke?token=<secret-token>`
+  - Add `Jenkinsfile` in the root of the repo. *Note: Replace the repository URL with your repo URL in the Jenkinsfile provided.*
+  
+- Executing the Script:
+  - Create a new branch, and add some code file to the repository and open a new pull request.
+  - The Jenkins pipeline will trigger and our GPTReview will review your code and provide review comments.

examples/gptreview-jenkins/codereview.gpt

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+Name: Code Reviewer
+Description: A tool to help you perform code review of open PRs
+Context: learn-gh
+Tools: sys.exec, sys.http.html2text?, sys.find, sys.read, sys.write
+Args: PR_URL: The GitHub PR_URL
+
+You have the gh cli available to you. Use it to perform code review for a pr from the $(repo) provided.
+
+Perform the following steps in order:
+1. Identify the files changed in the pull request ($PR_URL) using the pr number and perform a diff.
+    1. Analyze the complete code of each identified file and perform a detailed line by line code review.
+    2. Repeat the process for each changed file in the pr.
+2. Share your review comments separately for each file.
+3. In a new line write "Code: Approved" or "Code: Require Changes" based on the review comments.
+---
+Name: learn-gh
+Description: A tool to help you learn gh cli
+
+#!/usr/bin/env bash
+
+echo "The following is the help text for the gh cli and some of its sub-commands. Use these when figuring out how to construct new commands.  Note that the --search flag is used for filtering and sorting as well; there is no dedicate --sort flag."
+gh --help
+gh repo --help
+gh pr --help
+gh pr checkout --help
+gh pr diff --help