Merge pull request #6434 from NomicFoundation/changeset-check

ci: run the changeset check in the merge queue

Author: kanej

.github/workflows/check-changeset-added.yml

@@ -4,6 +4,7 @@
 name: Check that the PR has a changeset
 
 on:
+  merge_group:
   pull_request:
     branches:
       - main
@@ -25,6 +26,70 @@ jobs:
       - uses: actions/github-script@v7
         with:
           script: |
+            const isMergeGroup = context.eventName === "merge_group";
+
+            // Merge group context
+            if (isMergeGroup) {
+              console.log("Merge group context");
+              console.log(context)
+
+              console.log("Running in merge_group context...");
+              const { data: mergeQueue } = await github.rest.repos.listPullRequestsAssociatedWithCommit({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                commit_sha: context.sha
+              });
+
+              if (mergeQueue.length === 0) {
+                console.log("No associated PRs found for this merge_group commit.");
+                process.exit(1);
+              }
+
+              console.log(`Found ${mergeQueue.length} PR(s) in the merge group.`);
+
+              for (const pr of mergeQueue) {
+                const pullNumber = context.issue.number;
+
+                console.log(`Checking PR #${pr.number}...`);
+                const { data: files } = await github.rest.pulls.listFiles({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  pull_number: pullNumber
+                });
+
+                const changeset = files.find(
+                  file => file.status === "added" && file.filename.startsWith(".changeset/")
+                );
+
+                if (changeset !== undefined) {
+                  console.log(`PR #${pr.number} has a changeset: ${changeset.filename}`);
+                  continue;
+                }
+
+                console.log(`PR #${pr.number} has no changeset.`);
+
+                const { data: prDetails } = await github.rest.pulls.get({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  pull_number: pullNumber
+                });
+
+                const noChangesetNeededLabel = prDetails.labels.some(l => l.name === "no changeset needed");
+
+                if (noChangesetNeededLabel) {
+                  console.log(`PR #${pr.number} is labeled as "no changeset needed".`);
+                  continue;
+                }
+
+                console.log(`PR #${pr.number} is not labeled as "no changeset needed". Failing job.`);
+                process.exit(1);
+              }
+
+              console.log("All PRs in the merge group have a changeset or are labeled correctly.");
+              return;
+            }
+
+            // Single PR context
             const pullNumber = context.issue.number;
 
             const { data: files } = await github.rest.pulls.listFiles({