From a4e2340d7a037c10a3e08105d3c606ba7f47607c Mon Sep 17 00:00:00 2001
From: "zhangkun9038@dingtalk.com" <zhangkun9038@dingtalk.com>
Date: Sun, 16 Jul 2023 01:00:52 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E9=87=8F=E5=BC=8F=E5=A4=87=E4=BB=BD?=
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---
 backUpIncremental.sh | 48 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 44 insertions(+), 4 deletions(-)

diff --git a/backUpIncremental.sh b/backUpIncremental.sh
index 5ec1dcf..36c5906 100755
--- a/backUpIncremental.sh
+++ b/backUpIncremental.sh
@@ -39,19 +39,59 @@ cd $backUpPath
     docker exec maria /usr/bin/mysqlbinlog -u${userName} -p${password} -h${host} --start-position=${LAST_POSITION} --stop-position=${CURRENT_POSITION} /var/lib/mysql/$LAST_BINLOG > ${backUpPath}/${dbName}-incremental-${LAST_POSITION}-${CURRENT_POSITION}-${currentTime}.sql
     zip ${backUpPath}/${dbName}-incremental-${LAST_POSITION}-${CURRENT_POSITION}-${currentTime}.sql.zip ${backUpPath}/${dbName}-incremental-${LAST_POSITION}-${CURRENT_POSITION}-${currentTime}.sql
     rm ${backUpPath}/${dbName}-incremental-${LAST_POSITION}-${CURRENT_POSITION}-${currentTime}.sql
+    ossutil cp $file $ossPath/$file
 #fi
 # 更新上次备份的binlog文件名和位置
 echo "$CURRENT_BINLOG $CURRENT_POSITION" > "last_backup.txt"
 
+calculate_hour_diff() {
+    # 传入两个时间字符串作为参数
+    local time1=$1
+    local time2=$2
+
+    # 截取时间字符串中的年、月、日和小时部分
+    local year1=${time1:0:4}
+    local month1=${time1:4:2}
+    local day1=${time1:6:2}
+    local hour1=${time1:8:2}
+
+    local year2=${time2:0:4}
+    local month2=${time2:4:2}
+    local day2=${time2:6:2}
+    local hour2=${time2:8:2}
+
+    # 将时间字符串转换为时间戳
+    local timestamp1=$(date -d "$year1-$month1-$day1 $hour1:00:00" +%s)
+    local timestamp2=$(date -d "$year2-$month2-$day2 $hour2:00:00" +%s)
+
+    # 计算两个时间戳的差值，单位为小时
+    local diff_hours=$(( ($timestamp2 - $timestamp1) / 3600 ))
+
+    # 返回计算结果
+    echo $diff_hours
+}
+
+
+CURRENT_DATE=$(date +%Y%m%d%H)
 OLD_BACKUPS=()
 for file in ${dbName}-incremental-*.sql.zip; do
-    file_date=$(echo "$file" | grep -oP "(?<=-$dbName-)\d{10}(?=.sql.zip)")
-    if [[ $((CURRENT_DATE - file_date)) -gt 600 ]]; then
+    file_date=$(echo "$file" | grep -oP "\d{10}(?=.sql.zip)")
+    if [ ${#file_date} -le 1 ]; then
+      continue
+    fi
+    echo $file_date
+    difft=$(calculate_hour_diff $file_date $CURRENT_DATE )
+    echo difft $difft
+    if [[ difft -gt 24 ]]; then
+    	echo $file  $CURRENT_DATE $file_date $((CURRENT_DATE - file_date))
         OLD_BACKUPS+=("$file")
     fi
 done
 
-# 遍历数组，打印每个文件名
-for file in "${backup_files[@]}"; do
+
+# 遍历数组，打印每个文件名, 超过24小时的增量备份文件要删除
+for file in "${OLD_BACKUPS[@]}"; do
     echo "$file"
+    rm $file
+    ossutil rm $ossPath/$file
 done