From fb659eb8310eece5ba0be5ff617bbabaa9f7ce71 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A8=8B=E5=BA=8F=E5=91=98=E5=B0=8F=E5=A2=A8?=
 <2291200076@qq.com>
Date: Wed, 27 Jul 2022 00:26:13 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E4=BB=85=E4=BF=9D=E5=AD=98?=
 =?UTF-8?q?=E6=9C=80=E8=BF=91latest.json=E9=80=89=E9=A1=B9?=
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---
 .env.example       | 6 +++++-
 src/get_hotband.js | 4 ++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/.env.example b/.env.example
index 59caf61..c9a3abd 100644
--- a/.env.example
+++ b/.env.example
@@ -13,4 +13,8 @@ EXECUTE_AT_STARTUP=1
 
 # 数据是否推送到Git仓库
 # 1为是
-PUSH_TO_GIT=0
\ No newline at end of file
+PUSH_TO_GIT=0
+
+# 是否仅保存 latest.json 而不保存其他文件作为存档
+# 1为是
+LATEST_DATA_ONLY=0
\ No newline at end of file
diff --git a/src/get_hotband.js b/src/get_hotband.js
index f3caa97..1eec48c 100644
--- a/src/get_hotband.js
+++ b/src/get_hotband.js
@@ -6,6 +6,9 @@ const path = require('path');
 
 const DATA_FOLDER = path.join(path.dirname(__dirname), process.env.DATA_FOLDER ?? 'data');
 console.log("DATA_FOLDER", DATA_FOLDER);
+createFolder(DATA_FOLDER); // 程序运行就保证 data 目录存在
+
+const LATEST_DATA_ONLY = process.env.LATEST_DATA_ONLY == true;
 
 // 请求微博热搜 APi 接口
 async function getApiResult(url) {
@@ -44,6 +47,7 @@ async function createFolder(folderToCreate) {
 
 // 保存 JSON
 function saveJSON({ now, fileNameSuffix, object, compress = true, uncompress = true }) {
+    if (LATEST_DATA_ONLY) return;
 
     let year = now.substring(0, 4);
     let month = now.substring(5, 7);