fix rerun, add logs

Signed-off-by: Roman Nikitenko <rnikiten@redhat.com>

Author: RomanNikitenko

code/extensions/che-commands/src/taskProvider.ts

@@ -21,6 +21,7 @@ interface DevfileTaskDefinition extends vscode.TaskDefinition {
 }
 
 export class DevfileTaskProvider implements vscode.TaskProvider {
+	private cachedTaskMap: Map<string, vscode.Task> | undefined;
 
 	constructor(private channel: vscode.OutputChannel, private cheAPI: any, private terminalExtAPI: any) {
 	}
@@ -63,7 +64,9 @@ export class DevfileTaskProvider implements vscode.TaskProvider {
 				command.id
 			));
 
-		return [...execTasks, ...compositeTasks];
+		const tasks = [...execTasks, ...compositeTasks];
+		this.cachedTaskMap = this.buildTaskMap(tasks);
+		return tasks;
 	}
 
 	private async fetchDevfileCommands(): Promise<V1alpha2DevWorkspaceSpecTemplateCommands[]> {
@@ -171,20 +174,18 @@ export class DevfileTaskProvider implements vscode.TaskProvider {
 		writeEmitter: vscode.EventEmitter<string>,
 		activeExecutions: vscode.TaskExecution[]
 	): Promise<{ failed: boolean }> {
-		const tasks = await vscode.tasks.fetchTasks({ type: 'devfile' });
-		const taskMap = new Map<string, vscode.Task>();
-
-		for (const task of tasks) {
-			const def = task.definition as DevfileTaskDefinition;
-			if (def?.commandId && !def.command.startsWith('composite:')) {
-				taskMap.set(def.commandId, task);
-			}
-			taskMap.set(task.name, task);
-		}
+		const taskMap = await this.getTaskMap();
+		const availableKeys = Array.from(taskMap.keys()).sort();
+		writeEmitter.fire(`Composite diagnostics: available tasks: ${availableKeys.join(', ')}\r\n`);
+		this.channel.appendLine(`Composite diagnostics: available tasks: ${availableKeys.join(', ')}`);
+		writeEmitter.fire(`Composite diagnostics: requested commands: ${commandIds.join(', ')}\r\n`);
+		this.channel.appendLine(`Composite diagnostics: requested commands: ${commandIds.join(', ')}`);
 
 		const targetTasks = commandIds
 			.map(id => taskMap.get(id))
 			.filter((task): task is vscode.Task => Boolean(task));
+		writeEmitter.fire(`Composite diagnostics: resolved tasks: ${targetTasks.map(task => task.name).join(', ') || '(none)'}\r\n`);
+		this.channel.appendLine(`Composite diagnostics: resolved tasks: ${targetTasks.map(task => task.name).join(', ') || '(none)'}`);
 
 		const missing = commandIds.filter(id => !taskMap.has(id));
 		if (missing.length) {
@@ -267,4 +268,25 @@ export class DevfileTaskProvider implements vscode.TaskProvider {
 			});
 		});
 	}
+
+	private buildTaskMap(tasks: vscode.Task[]): Map<string, vscode.Task> {
+		const taskMap = new Map<string, vscode.Task>();
+		for (const task of tasks) {
+			const def = task.definition as DevfileTaskDefinition;
+			if (def?.commandId && !def.command.startsWith('composite:')) {
+				taskMap.set(def.commandId, task);
+			}
+			taskMap.set(task.name, task);
+		}
+		return taskMap;
+	}
+
+	private async getTaskMap(): Promise<Map<string, vscode.Task>> {
+		if (this.cachedTaskMap) {
+			return this.cachedTaskMap;
+		}
+		const tasks = await vscode.tasks.fetchTasks({ type: 'devfile' });
+		this.cachedTaskMap = this.buildTaskMap(tasks);
+		return this.cachedTaskMap;
+	}
 }