Adds 'Show Stashed Changes` command

Adds experimental 'Apply Stashed Changes' command
Adds experimental 'Delete Stashed Changes' to stashed changes quick pick

src/commands/stashDelete.ts

@@ -0,0 +1,31 @@
+'use strict';
+import { MessageItem, window } from 'vscode';
+import { GitService } from '../gitService';
+import { Command, Commands } from './common';
+import { Logger } from '../logger';
+
+export class StashDeleteCommand extends Command {
+
+    constructor(private git: GitService) {
+        super(Commands.StashDelete);
+    }
+
+    async execute(stashItem: { stashName: string, message: string }, confirm: boolean = true) {
+        if (!this.git.config.insiders) return undefined;
+        if (!stashItem || !stashItem.stashName) return undefined;
+
+        try {
+            if (confirm) {
+                const message = stashItem.message.length > 80 ? `${stashItem.message.substring(0, 80)}\u2026` : stashItem.message;
+                const result = await window.showWarningMessage(`Delete stashed changes '${message}'?`, { title: 'Yes' } as MessageItem, { title: 'No', isCloseAffordance: true } as MessageItem);
+                if (!result || result.title !== 'Yes') return undefined;
+            }
+
+            return await this.git.stashDelete(this.git.repoPath, stashItem.stashName);
+        }
+        catch (ex) {
+            Logger.error(ex, 'StashDeleteCommand');
+            return window.showErrorMessage(`Unable to delete stash. See output channel for more details`);
+        }
+    }
+}