Decouple file uploading from initBlob

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/49601

app/assets/javascripts/blob_edit/blob_bundle.js

@@ -38,9 +38,20 @@ const initPopovers = () => {
   }
 };
 
+export const initUploadForm = () => {
+  const uploadBlobForm = $('.js-upload-blob-form');
+  if (uploadBlobForm.length) {
+    const method = uploadBlobForm.data('method');
+
+    new BlobFileDropzone(uploadBlobForm, method);
+    new NewCommitForm(uploadBlobForm);
+
+    disableButtonIfEmptyField(uploadBlobForm.find('.js-commit-message'), '.btn-upload-file');
+  }
+};
+
 export default () => {
   const editBlobForm = $('.js-edit-blob-form');
-  const uploadBlobForm = $('.js-upload-blob-form');
   const deleteBlobForm = $('.js-delete-blob-form');
 
   if (editBlobForm.length) {
@@ -80,14 +91,7 @@ export default () => {
     window.onbeforeunload = () => '';
   }
 
-  if (uploadBlobForm.length) {
-    const method = uploadBlobForm.data('method');
-
-    new BlobFileDropzone(uploadBlobForm, method);
-    new NewCommitForm(uploadBlobForm);
-
-    disableButtonIfEmptyField(uploadBlobForm.find('.js-commit-message'), '.btn-upload-file');
-  }
+  initUploadForm();
 
   if (deleteBlobForm.length) {
     new NewCommitForm(deleteBlobForm);

app/assets/javascripts/pages/projects/show/index.js

 import initTree from 'ee_else_ce/repository';
-import initBlob from '~/blob_edit/blob_bundle';
+import { initUploadForm } from '~/blob_edit/blob_bundle';
 import ShortcutsNavigation from '~/behaviors/shortcuts/shortcuts_navigation';
 import NotificationsForm from '~/notifications_form';
 import UserCallout from '~/user_callout';
@@ -26,7 +26,7 @@ new UserCallout({
 // Project show page loads different overview content based on user preferences
 const treeSlider = document.getElementById('js-tree-list');
 if (treeSlider) {
-  initBlob();
+  initUploadForm();
   initTree();
 }