Expose number of backup files as a preferences option.

Author: highperformancecoder

gui-js/apps/minsky-electron/src/app/managers/CommandsManager.ts

@@ -1121,10 +1121,12 @@ export class CommandsManager {
       godleyTableShowValues,
       godleyTableOutputStyle,
       font,
+      numBackups,
     } = StoreManager.store.get('preferences');
     minsky.setGodleyDisplayValue(godleyTableShowValues,godleyTableOutputStyle);
     minsky.multipleEquities(enableMultipleEquityColumns);
     minsky.defaultFont(font);
+    minsky.numBackups(numBackups);
     RecentFilesManager.updateNumberOfRecentFilesToDisplay();
   }
 

gui-js/apps/minsky-electron/src/app/managers/StoreManager.ts

@@ -9,6 +9,7 @@ interface MinskyPreferences {
   wrapLongEquationsInLatexExport: boolean;
   font: string;
   // focusFollowsMouse: boolean;
+  numBackups: number;
 }
 
 interface MinskyStore {
@@ -31,6 +32,7 @@ class StoreManager {
         wrapLongEquationsInLatexExport: false,
         font: "",
         // focusFollowsMouse: false,
+        numBackups: 1,
       },
     },
   });

gui-js/libs/menu/src/lib/options/preferences/preferences.component.html

@@ -69,6 +69,19 @@
         />
       </div>
 
+      <div class="form-control">
+        <label for="numBackups"
+          >Number of saved file backups</label
+        >
+        <input
+          formControlName="numBackups"
+          type="number"
+          class="numBackups"
+          id="numBackups"
+          value="1"
+        />
+      </div>
+
       <div class="form-control">
         <label for="wrapLongEquationsInLatexExport"
           >Wrap long equations in LaTeX export</label

gui-js/libs/menu/src/lib/options/preferences/preferences.component.ts

@@ -30,6 +30,7 @@ export class PreferencesComponent implements OnInit {
       wrapLongEquationsInLatexExport: new FormControl(null),
       // focusFollowsMouse: new FormControl(null),
       font: new FormControl(null),
+      numBackups: new FormControl(null),
     });
   }
   async ngOnInit() {