ci: added additional command to fetch submodule history (#118)

Author: soumyamahunt

.github/workflows/main.yml

@@ -71,21 +71,22 @@ jobs:
           const package = JSON.parse(await fs.readFile('package.json', 'utf8'));
           const old = package.swiftorg.commit;
           try {
-              const { stdout } = await exec.getExecOutput('git', ['diff', '--name-status', '--ignore-submodules=all', '--diff-filter=ACDMRTUX', `${old}..HEAD`], { cwd: 'swiftorg' });
-              const files = stdout.split('\n').filter(Boolean).flatMap((line) => {
-                  const parts = line.split('\t');
-                  return parts.length > 2 ? [parts[1], parts[2]] : [parts[1]];
-              }).filter((file) => /(download\/(index.md|_older-releases.md)|_data\/builds\/.*)/.exec(file));
-              return {
-                any_changed: files.length > 0,
-                swift_release: files.some(file => /_data\/builds\/(swift-.*-release.*|swift_releases\.yml)/.exec(file))
-              };
+            await exec.exec('git', ['submodule', 'update', '--init']);
+            const { stdout } = await exec.getExecOutput('git', ['diff', '--name-status', '--ignore-submodules=all', '--diff-filter=ACDMRTUX', `${old}..HEAD`], { cwd: 'swiftorg' });
+            const files = stdout.split('\n').filter(Boolean).flatMap((line) => {
+                const parts = line.split('\t');
+                return parts.length > 2 ? [parts[1], parts[2]] : [parts[1]];
+            }).filter((file) => /(download\/(index.md|_older-releases.md)|_data\/builds\/.*)/.exec(file));
+            return {
+              any_changed: files.length > 0,
+              swift_release: files.some(file => /_data\/builds\/(swift-.*-release.*|swift_releases\.yml)/.exec(file))
+            };
           } catch (error) {
-              console.error(error);
-              return {
-                any_changed: true,
-                swift_release: false
-              };
+            core.error(error);
+            return {
+              any_changed: true,
+              swift_release: false
+            };
           }
 
     - name: Setup Node.js