chore(gha): more broken-link-checker cleanup

.github/broken-link-checker/src/index.ts

@@ -51,31 +51,38 @@ async function updateCheckStatus(
   const { context, getOctokit } = github
   const octokit = getOctokit(process.env.GITHUB_TOKEN!)
   const { owner, repo } = context.repo
-  const pullRequest = context.payload.pull_request
-  const sha = pullRequest?.head.sha
-
-  const checkParams = {
-    owner,
-    repo,
-    name: checkName,
-    head_sha: sha,
-    status: "completed" as const,
-    conclusion: "failure" as const,
-    output: {
-      title: checkName,
-      summary: summary,
-      text: text,
-    },
-  }
 
-  try {
-    await octokit.rest.checks.create(checkParams)
-  } catch (error) {
-    setFailed("Failed to create check: " + error)
+  // Can only update status on 'pull_request' events
+  if (context.payload.pull_request) {
+    const pullRequest = context.payload.pull_request
+    const sha = pullRequest?.head.sha
+
+    const checkParams = {
+      owner,
+      repo,
+      name: checkName,
+      head_sha: sha,
+      status: "completed" as const,
+      conclusion: "failure" as const,
+      output: {
+        title: checkName,
+        summary: summary,
+        text: text,
+      },
+    }
+
+    try {
+      await octokit.rest.checks.create(checkParams)
+    } catch (error) {
+      setFailed("Failed to create check: " + error)
+    }
   }
 }
 
-const postComment = async (outputMd: string) => {
+const postComment = async (
+  outputMd: string,
+  brokenLinkCount: number = 0
+): Promise<string> => {
   try {
     const { context, getOctokit } = github
     const octokit = getOctokit(process.env.GITHUB_TOKEN!)
@@ -102,7 +109,6 @@ const postComment = async (outputMd: string) => {
       repo,
       prNumber,
     })
-    console.log("botComment", botComment)
     if (botComment) {
       console.log("Updating Comment")
       const { data } = await octokit.rest.issues.updateComment({
@@ -113,7 +119,7 @@ const postComment = async (outputMd: string) => {
       })
 
       return data.html_url
-    } else {
+    } else if (brokenLinkCount > 0) {
       console.log("Creating Comment")
       const { data } = await octokit.rest.issues.createComment({
         owner,
@@ -123,6 +129,7 @@ const postComment = async (outputMd: string) => {
       })
       return data.html_url
     }
+    return ""
   } catch (error) {
     setFailed("Error commenting: " + error)
     return ""
@@ -212,23 +219,29 @@ async function brokenLinkChecker(): Promise<void> {
     },
     end: async () => {
       if (output.links.length) {
+        // DEBUG
+        // console.debug(output.links)
+
         // Skip links that returned 308
-        const links404 = output.links.filter(
+        const brokenLinksForAttention = output.links.filter(
           (link) => link.broken && !["HTTP_308"].includes(link.brokenReason)
         )
 
         const outputMd = generateOutputMd({
           errors: output.errors,
-          links: links404,
+          links: brokenLinksForAttention,
           pages: [],
           sites: [],
         })
-        await postComment(outputMd)
+        const commentUrl = await postComment(
+          outputMd,
+          brokenLinksForAttention.length
+        )
+
+        // Update GitHub "check" status
+        await updateCheckStatus(brokenLinksForAttention.length, commentUrl)
 
-        // const commentUrl = await postComment(outputMd);
-        // NOTE: Do we need this additional check in GH output?
-        // await updateCheckStatus(output.links.length, commentUrl);
-        setFailed(`Found broken links`)
+        brokenLinksForAttention.length && setFailed(`Found broken links`)
       }
     },
   })