add context menu option to delete untracked files (#815)

Author: ianhi

src/commandsAndMenu.tsx

@@ -78,6 +78,7 @@ export namespace CommandIDs {
   // Context menu commands
   export const gitFileDiff = 'git:context-diff';
   export const gitFileDiscard = 'git:context-discard';
+  export const gitFileDelete = 'git:context-delete';
   export const gitFileOpen = 'git:context-open';
   export const gitFileUnstage = 'git:context-unstage';
   export const gitFileStage = 'git:context-stage';
@@ -478,6 +479,36 @@ export function addCommands(
     }
   });
 
+  commands.addCommand(CommandIDs.gitFileDelete, {
+    label: 'Delete',
+    caption: 'Delete this file',
+    execute: async args => {
+      const file: Git.IStatusFile = args as any;
+
+      const result = await showDialog({
+        title: 'Delete File',
+        body: (
+          <span>
+            Are you sure you want to permanently delete
+            <b>{file.to}</b>? This action cannot be undone.
+          </span>
+        ),
+        buttons: [Dialog.cancelButton(), Dialog.warnButton({ label: 'Delete' })]
+      });
+      if (result.button.accept) {
+        try {
+          await app.commands.execute('docmanager:delete-file', {
+            path: model.getRelativeFilePath(file.to)
+          });
+        } catch (reason) {
+          showErrorMessage(`Deleting ${file.to} failed.`, reason, [
+            Dialog.warnButton({ label: 'DISMISS' })
+          ]);
+        }
+      }
+    }
+  });
+
   commands.addCommand(CommandIDs.gitFileDiscard, {
     label: 'Discard',
     caption: 'Discard recent changes of selected file',

src/components/FileList.tsx

@@ -84,7 +84,8 @@ export class FileList extends React.Component<IFileListProps, IFileListState> {
         commands.push(
           CommandIDs.gitFileTrack,
           CommandIDs.gitIgnore,
-          CommandIDs.gitIgnoreExtension
+          CommandIDs.gitIgnoreExtension,
+          CommandIDs.gitFileDelete
         );
         break;
       case 'staged':
@@ -125,7 +126,11 @@ export class FileList extends React.Component<IFileListProps, IFileListState> {
     const commands = [CommandIDs.gitFileOpen];
     switch (selectedFile.status) {
       case 'untracked':
-        commands.push(CommandIDs.gitIgnore, CommandIDs.gitIgnoreExtension);
+        commands.push(
+          CommandIDs.gitIgnore,
+          CommandIDs.gitIgnoreExtension,
+          CommandIDs.gitFileDelete
+        );
         break;
       default:
         commands.push(CommandIDs.gitFileDiscard, CommandIDs.gitFileDiff);