From ffc46adc8b6f9d6706c89aebb43d80a605ebb355 Mon Sep 17 00:00:00 2001
From: "zhangkun9038@dingtalk.com" <zhangkun9038@dingtalk.com>
Date: Fri, 14 Jul 2023 16:48:32 +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 | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 backUpIncremental.sh

diff --git a/backUpIncremental.sh b/backUpIncremental.sh
new file mode 100644
index 0000000..8045436
--- /dev/null
+++ b/backUpIncremental.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+currentTime=$(date +"%Y-%m-%d-%H")
+userName=$1
+password=$2
+dbName=$3
+host=$4
+# 定义备份文件存放目录
+backUpPath=$5
+ossPath=$6
+
+
+# 获取上次备份的binlog文件名和位置
+LAST_BACKUP=$(cat "$backUpPath/last_backup.txt")
+LAST_BINLOG=$(echo "$LAST_BACKUP" | awk '{print $1}')
+LAST_POSITION=$(echo "$LAST_BACKUP" | awk '{print $2}')
+
+# 获取当前binlog文件名和位置
+CURRENT_BINLOG=$(mysql -N -e "SHOW MASTER STATUS" | awk '{print $1}')
+CURRENT_POSITION=$(mysql -N -e "SHOW MASTER STATUS" | awk '{print $2}')
+
+# 备份增量变更到文件
+# 如果上次备份的binlog文件名和位置为空，则进行全量备份
+cd $backUpPath
+#if [ -z "$LAST_BINLOG" ]; then
+#    mysqldump -u $MYSQL_USER -p$MYSQL_PASSWORD -h $MYSQL_HOST $MYSQL_DATABASE > "$BACKUP_DIR/full_backup.sql"
+#else
+    mysqlbinlog --start-position=$LAST_POSITION --stop-position=$CURRENT_POSITION --result-file="$backUpPath/$dbName-$currentTime.sql" $LAST_BINLOG
+#fi
+# 更新上次备份的binlog文件名和位置
+echo "$CURRENT_BINLOG $CURRENT_POSITION" > "last_backup.txt"
+
+# 获取备份文件列表
+backup_files=($(find "$backUpPath" -name "$dbName-*.sql" -type f -printf "%f\n"))
+
+# 打印备份文件列表
+for file in "${backup_files[@]}"; do
+    echo "$file"
+done