Slightly different way of addressing #1085

saving files after local update with setTexrt

plug-api/syscalls/editor.ts

@@ -28,8 +28,11 @@ export function getText(): Promise<string> {
  * This updates the editor text, but in a minimal-diff way:
  * it compares the current editor text with the new text, and only sends the changes to the editor, thereby preserving cursor location
  */
-export function setText(newText: string): Promise<void> {
-  return syscall("editor.setText", newText);
+export function setText(
+  newText: string,
+  isolateHistory = false,
+): Promise<void> {
+  return syscall("editor.setText", newText, isolateHistory);
 }
 
 /**

web/client.ts

@@ -659,7 +659,7 @@ export class Client implements ConfigContainer {
           if (this.currentPage) {
             if (
               !this.ui.viewState.unsavedChanges ||
-              this.ui.viewState.uiOptions.forcedROMode
+              this.ui.viewState.uiOptions.forcedROMode || this.readOnlyMode
             ) {
               // No unsaved changes, or read-only mode, not gonna save
               return resolve();
@@ -1143,7 +1143,7 @@ export class Client implements ConfigContainer {
       this.space.watchPage(pageName);
     } else {
       // Just apply minimal patches so that the cursor is preserved
-      await editor.setText(doc.text);
+      await editor.setText(doc.text, true);
     }
 
     // Note: these events are dispatched asynchronously deliberately (not waiting for results)

web/syscalls/editor.ts

@@ -25,12 +25,14 @@ export function editorSyscalls(client: Client): SysCallMapping {
     "editor.getText": () => {
       return client.editorView.state.sliceDoc();
     },
-    "editor.setText": (_ctx, newText: string) => {
+    "editor.setText": (_ctx, newText: string, shouldIsolateHistory = false) => {
       const currentText = client.editorView.state.sliceDoc();
       const allChanges = diffAndPrepareChanges(currentText, newText);
       client.editorView.dispatch({
         changes: allChanges,
-        annotations: isolateHistory.of("full"),
+        annotations: shouldIsolateHistory
+          ? isolateHistory.of("full")
+          : undefined,
       });
     },
     "editor.getCursor": (): number => {