Fix #193. Show notification when only partial view is being displayed.

Author: rebornix

package.json

@@ -87,6 +87,11 @@
         "title": "Open File in GitHub",
         "category": "GitHub Pull Requests"
       },
+      {
+        "command": "pr.openDiffView",
+        "title": "Open Diff View",
+        "category": "GitHub Pull Requests"
+      },
       {
         "command": "pr.openDescription",
         "title": "View Pull Request Description",

src/commands.ts

@@ -51,6 +51,13 @@ export function registerCommands(context: vscode.ExtensionContext, prManager: IP
 		vscode.commands.executeCommand('vscode.open', vscode.Uri.parse(e.blobUrl));
 	}));
 
+	context.subscriptions.push(vscode.commands.registerCommand('pr.openDiffView', (parentFilePath: string, filePath: string, fileName: string, isPartial: boolean, opts: any) => {
+		if (isPartial) {
+			vscode.window.showInformationMessage('Your local repository is not up to date so only partial content is being displayed');
+		}
+		vscode.commands.executeCommand('vscode.diff', parentFilePath, filePath, fileName, opts);
+	}));
+
 	context.subscriptions.push(vscode.commands.registerCommand('pr.deleteLocalBranch', async (e: PRNode) => {
 		const pullRequestModel = ensurePR(prManager, e);
 		try {

src/view/treeNodes/fileChangeNode.ts

@@ -95,11 +95,12 @@ export class FileChangeNode extends TreeNode implements vscode.TreeItem {
 
 		this.command = {
 			title: 'show diff',
-			command: 'vscode.diff',
+			command: 'pr.openDiffView',
 			arguments: [
 				this.parentFilePath,
 				this.filePath,
 				this.fileName,
+				this.isPartial,
 				opts
 			]
 		};