Create Bazel task provider

Author: LeonovecSergey

package.json

@@ -42,7 +42,12 @@
 					"group": "MenuViewTitle"
 				}
 			]
-		}
+		},
+		"taskDefinitions": [
+			{
+				"type": "bazel"
+			}
+		]
 	},
 	"scripts": {
 		"vscode:prepublish": "gulp build-plugin",

src/bazelTaskProvider.ts

@@ -0,0 +1,44 @@
+
+import * as vscode from 'vscode';
+
+export class BazelTaskProvider implements vscode.TaskProvider {
+
+    static BazelType = 'bazel';
+    private bazelPromise: Thenable<vscode.Task[]> | undefined = undefined;
+
+    public provideTasks(): Thenable<vscode.Task[]> | undefined {
+		if (!this.bazelPromise) {
+			this.bazelPromise = getBazelTasks();
+		}
+		return this.bazelPromise;
+	}
+
+	public resolveTask(_task: vscode.Task): vscode.Task | undefined {
+		const task = _task.definition.task;
+		if (task) {
+			// resolveTask requires that the same definition object be used.
+			const definition: BazelTaskDefinition = <any>_task.definition;
+			return new vscode.Task(definition, _task.scope ?? vscode.TaskScope.Workspace, definition.task, 'bazel', new vscode.ShellExecution(`bazel ${definition.task}`));
+		}
+		return undefined;
+	}
+
+}
+
+interface BazelTaskDefinition extends vscode.TaskDefinition {
+
+}
+
+async function getBazelTasks(): Promise<vscode.Task[]> {
+    const result: vscode.Task[] = [];
+
+    const kind: BazelTaskDefinition = {
+        type: 'bazel',
+    };
+
+	result.push(new vscode.Task(kind, vscode.TaskScope.Workspace, 'Build', 'bazel', new vscode.ShellExecution(`bazel build //...`)));
+	result.push(new vscode.Task(kind, vscode.TaskScope.Workspace, 'Test', 'bazel', new vscode.ShellExecution(`bazel test //...`)));
+	result.push(new vscode.Task(kind, vscode.TaskScope.Workspace, 'Dependencies', 'bazel', new vscode.ShellExecution(`bazel query  --notool_deps --noimplicit_deps \"deps(//...)\" --output graph`)));
+
+    return result;
+}

src/extension.ts

@@ -1,6 +1,9 @@
 import * as vscode from 'vscode';
 import * as path from 'path';
 import * as pieditor from './editor';
+import { BazelTaskProvider } from './bazelTaskProvider';
+
+let bazelTaskProvider: vscode.Disposable | undefined;
 
 export function activate(context: vscode.ExtensionContext) {
 	let panel: vscode.WebviewPanel | undefined = undefined;
@@ -49,7 +52,14 @@ export function activate(context: vscode.ExtensionContext) {
 	});
 
 	context.subscriptions.push(viewTitleDisp);
+
+	bazelTaskProvider = vscode.tasks.registerTaskProvider(BazelTaskProvider.BazelType, new BazelTaskProvider());
+
 }
 
 // this method is called when your extension is deactivated
-export function deactivate() { }
+export function deactivate() { 
+	if (bazelTaskProvider) {
+		bazelTaskProvider.dispose();
+	}
+}