Add href and sha, make pullRequesetId optional

automagicallyexecute/index.ts

@@ -5,6 +5,7 @@ import {
   debug,
   getVariable,
   setResult,
+  warning,
   getEndpointAuthorizationParameter
 } from 'azure-pipelines-task-lib'
 import fetch from 'node-fetch'
@@ -28,6 +29,16 @@ const run = async (): Promise<void> => {
       return
     }
 
+    const sha = getVariable('Build.SourceVersion')
+    if (!sha) {
+      setResult(TaskResult.Failed, 'sha is required')
+    }
+
+    const ref = getVariable('Build.SourceBranch')
+    if (!ref) {
+      setResult(TaskResult.Failed, 'ref is required')
+    }
+
     // https://learn.microsoft.com/en-us/azure/devops/pipelines/build/variables
     const collectionUri = getVariable('System.TeamFoundationCollectionUri')
 
@@ -37,15 +48,16 @@ const run = async (): Promise<void> => {
         : undefined,
       project: getVariable('System.TeamProject'),
       repositoryId: getVariable('Build.Repository.ID'),
-      pullRequestId: getVariable('System.PullRequest.PullRequestId')
+      pullRequestId: getVariable('System.PullRequest.PullRequestId'),
+      sha,
+      ref
     }
 
     if (!context.pullRequestId) {
-      setResult(
-        TaskResult.Failed,
+      warning(
         'System.PullRequest.PullRequestId variable not available. ' +
-          'Make sure you run this task in a PR build validation pipeline, ' +
-          'otherwise we cannot comment back the test results'
+          'Make sure you run this task in a PR build validation pipeline ' +
+          'if you expect a comment with the test results on your PR'
       )
     }