Build/Test Tools: Only open pull requests need testing instructions.

This adds some logic to avoid leaving automated comments with instructions to test in Playground when the pull request has been closed.

Props jeffpaul.
See #63170.

git-svn-id: https://develop.svn.wordpress.org/trunk@61135 602fd350-edb4-49c9-b593-d223f7449a82

Author: desrosj

.github/workflows/pull-request-comments.yml

@@ -130,6 +130,20 @@ jobs:
             const fs = require( 'fs' );
             const issue_number = Number( fs.readFileSync( './NR' ) );
 
+            core.info( `Checking pull request #${issue_number}.` );
+
+            // Confirm that the pull request is still open before leaving a comment.
+            const pr = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: issue_number,
+            });
+
+            if ( pr.data.state !== 'open' ) {
+              core.info( 'The pull request has been closed. No comment will be left.' );
+              return;
+            }
+
             // Comments are only added after the first successful build. Check for the presence of a comment and bail early.
             const commentInfo = {
               owner: context.repo.owner,
@@ -141,6 +155,7 @@ jobs:
 
             for ( const currentComment of comments ) {
               if ( currentComment.user.type === 'Bot' && currentComment.body.includes( 'Test using WordPress Playground' ) ) {
+                core.info( 'A comment with instructions to test within a Playground instance already exists.' );
                 return;
               }
             };