Task Provider Sample shows no tasks

[kenkit]

Extension sample

task-provider-sample

VS Code version

1.89

What went wrong?

I have tried using the task provider sample but I have not managed to get it to list any tasks.
I even tried a sample I found here which uses the same api but it also doesn't show anything. Upon debugging I can see that the methods for retrieving tasks are called and they do return tasks.
This is the other example I tried from SO

[kenkit]

Fixed with this code still don't understand where my mistake was.
Could it be the constructor ??

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
import * as vscode from 'vscode';


export class TaskProvider implements vscode.TaskProvider {
	static esp_tool_task_type = 'esp_tool_tasks';
	private tasks: vscode.Task[] | undefined;

	// We use a CustomExecution task when state needs to be shared across runs of the task or when 
	// the task requires use of some VS Code API to run.
	// If you don't need to share state between runs and if you don't need to execute VS Code API in your task, 
	// then a simple ShellExecution or ProcessExecution should be enough.
	// Since our build has this shared state, the CustomExecution is used below.

	constructor(private workspaceRoot: string) { }

	public async provideTasks(): Promise<vscode.Task[]> {
		return this.getTasks();
	}

	public resolveTask(_task: vscode.Task): vscode.Task | undefined {
			return this.getTask(_task.definition);
	}

	private getTasks(): vscode.Task[] {
		if (this.tasks !== undefined) {
			return this.tasks;
		}

		this.tasks = [];
		this.tasks.push(this.getTask({type:TaskProvider.esp_tool_task_type}));
		return this.tasks;
	}

	private getTask(definition: any): vscode.Task {
		if (definition === undefined) {
			definition = {type: TaskProvider.esp_tool_task_type};
		}
		const execution = new vscode.ShellExecution("echo \"Hello World\"");
		const problemMatchers = ["$myProblemMatcher"];
		return (new vscode.Task(definition, vscode.TaskScope.Workspace,
				"Build", "myExtension", execution, problemMatchers));
	}
}

[chipbite]

Hey @kenkit could you share a working project with the sample?

I tried to get it working today but was unable to. Things "work" (compiles, runs, activates, etc), except it always says No [...] tasks found.

I also looked at the task provider hello world sample on SO you linked to and found more questions of the same nature.

[Wilfred]

Note that you need a non-empty Rakefile to test this, because it's creating a task per item in the file. The sample code works for me with VS Code 1.94 and the following Rakefile:

task :test do
    sh "ls"
end

You can then start VS Code with this extension, and cmd-shift-p 'Tasks: Run Task' offers 'rake'.

[chipbite]

Thx @Wilfred - I've put this in the cooler for a while, since using the command API works for my purposes currently.
To test it more, I had in mind to get ruby running, (ruby was a while ago for me) - but your simple example is appreciated and lowers the threshold for me significantly.