add setting to always clear outputs before commits

Author: Meriem-BenIsmail

schema/plugin.json

@@ -82,6 +82,12 @@
       "title": "Hide hidden file warning",
       "description": "If true, the warning popup when opening the .gitignore file without hidden files will not be displayed.",
       "default": false
+    },
+    "clearOutputsBeforeCommit":{
+      "type": "boolean",
+      "title": "Clear outputs before commit",
+      "description": "If true, notebook outputs will be cleared before committing.",
+      "default": false
     }
   },
   "jupyter.lab.shortcuts": [

src/components/GitPanel.tsx

@@ -810,7 +810,10 @@ export class GitPanel extends React.Component<IGitPanelProps, IGitPanelState> {
       const notebooksWithOutputs =
         await this.props.model.checkNotebooksForOutputs();
 
-      if (notebooksWithOutputs.length > 0) {
+      if (
+        notebooksWithOutputs.length > 0 &&
+        !this.props.settings.composite['clearOutputsBeforeCommit']
+      ) {
         const dialog = new Dialog({
           title: this.props.trans.__('Notebook outputs detected'),
           body: `You are about to commit ${notebooksWithOutputs.length} notebook(s) with outputs. 
@@ -842,6 +845,13 @@ export class GitPanel extends React.Component<IGitPanelProps, IGitPanelState> {
         } else {
           return;
         }
+      } else if (this.props.settings.composite['clearOutputsBeforeCommit']) {
+        id = Notification.emit(
+          this.props.trans.__('Cleaning notebook outputs…'),
+          'in-progress',
+          { autoClose: false }
+        );
+        await this.props.model.stripNotebooksOutputs(notebooksWithOutputs);
       }
 
       const notificationMsg = this.props.trans.__('Committing changes...');