using my boilerplate yuh

webpack/utils/git/getSourceRef.ts

@@ -0,0 +1,28 @@
+import prompts from 'prompts';
+import { simpleGit } from 'simple-git';
+import { error } from '../chalk';
+
+const git = simpleGit();
+
+export async function getSourceRef(destinationBranch: 'preview' | 'production'): Promise<string> {
+    if (destinationBranch === 'preview') {
+        return 'main';
+    }
+
+    const tags = await git.tags(['--sort=-committerdate']);
+    const alphaTags = tags.all.filter((tag: string) => tag.includes('alpha'));
+
+    if (!alphaTags.length) {
+        console.log(error('No preview builds found, please create one before releasing a production build.'));
+        process.exit(1);
+    }
+
+    const { sourceTag } = await prompts({
+        message: 'Which preview tag do you want to create a production build from?',
+        type: 'select',
+        name: 'sourceTag',
+        choices: alphaTags.map(tag => ({ title: tag, value: tag })),
+    });
+
+    return sourceTag;
+}