feat(pipeline-task): 流水线任务日志订阅接口。

src/pipeline-tasks/pipeline-tasks.resolver.ts

@@ -4,10 +4,14 @@ import { PipelineTasksService } from './pipeline-tasks.service';
 import { CreatePipelineTaskInput } from './dtos/create-pipeline-task.input';
 import { PipelineTaskLogMessage } from './models/pipeline-task-log-message.module';
 import { PipelineTaskLogArgs } from './dtos/pipeline-task-log.args';
+import { PipelineTaskLogsService } from './pipeline-task-logs.service';
 
 @Resolver()
 export class PipelineTasksResolver {
-  constructor(private readonly service: PipelineTasksService) {}
+  constructor(
+    private readonly service: PipelineTasksService,
+    private readonly logsService: PipelineTaskLogsService,
+  ) {}
 
   @Mutation(() => PipelineTask)
   async createPipelineTask(@Args('task') taskDto: CreatePipelineTaskInput) {
@@ -15,4 +19,9 @@ export class PipelineTasksResolver {
   }
 
   @Subscription(() => PipelineTaskLogMessage)
+  async pipelineTaskLog(@Args() args: PipelineTaskLogArgs) {
+    const task = await this.service.findTaskById(args.taskId);
+    const asyncIterator = this.logsService.watchLogs(task);
+    return asyncIterator;
+  }
 }