delete task file when task is done

lib/common.mjs

@@ -1,4 +1,6 @@
 //公用方法
+import { rm as removeFile } from 'node:fs/promises';
+
 export default {
 
     getTimeString: function(locales) {
@@ -7,4 +9,16 @@ export default {
         return today.toLocaleString(locales);
     },
 
+    removeFile: async function(filepath) {
+        let done = false;
+
+        try {
+            done = await removeFile(filepath, {force: true});
+        }catch(error) {
+            console.error('Remove task file failed: %s', error);
+        }
+
+        return done;
+    }
+
 };

lib/taskMoniter.mjs

@@ -35,6 +35,11 @@ class TaskMoniter {
     };
   }
 
+  getTaskFilePath(task_id) {
+    const dirPath = path.resolve(this.task_dir);
+    return `${dirPath}/${task_id}.task`;
+  }
+
   getStatus() {
     return this.taskStatus;
   }
@@ -71,6 +76,8 @@ class TaskMoniter {
     this.tasks[task_id].status = this.statusCode.done;
     this.taskStatus[this.statusCode.done] ++;
 
+    const filepath = this.getTaskFilePath(task_id);
+    common.removeFile(filepath);        //async delete
     return true;
   }