From 57ec9939ab67a4cc89d992dbdf53e19375d453ff Mon Sep 17 00:00:00 2001
From: Lyric-c <cchuanzhao@gmail.com>
Date: Fri, 18 Aug 2023 10:28:52 +0800
Subject: [PATCH] =?UTF-8?q?feed=E5=86=85=E5=AE=B9=E6=97=A0=E6=9B=B4?=
 =?UTF-8?q?=E6=96=B0=E6=97=B6=E6=97=A0=E9=9C=80=E6=9B=B4=E6=96=B0=E7=BC=93?=
 =?UTF-8?q?=E5=AD=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 main.go | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index ce74756..d162f6b 100644
--- a/main.go
+++ b/main.go
@@ -128,6 +128,13 @@ func updateFeed(fp *gofeed.Parser, url, formattedTime string) {
 		log.Printf("Error fetching feed: %v | %v", url, err)
 		return
 	}
+	//feed内容无更新时无需更新缓存
+	if cache, ok := dbMap[url]; ok &&
+		len(result.Items) > 0 &&
+		len(cache.Items) > 0 &&
+		result.Items[0].Link == cache.Items[0].Link {
+		return
+	}
 	customFeed := feed{
 		Title:  result.Title,
 		Link:   result.Link,
@@ -136,8 +143,8 @@ func updateFeed(fp *gofeed.Parser, url, formattedTime string) {
 	}
 	for _, v := range result.Items {
 		customFeed.Items = append(customFeed.Items, item{
-			Link:  v.Link,
-			Title: v.Title,
+			Link:        v.Link,
+			Title:       v.Title,
 			Description: v.Description,
 		})
 	}