From e408ca69b70d643fb903a01c5c17e1c1efdc8bb2 Mon Sep 17 00:00:00 2001
From: Daniel <845765@qq.com>
Date: Thu, 9 Nov 2023 16:21:59 +0800
Subject: [PATCH] :art: Automatically purge unreferenced data snapshots older
 than 30 days https://github.com/siyuan-note/siyuan/issues/9613

---
 kernel/conf/{Repo.go => repo.go} |  7 +++--
 kernel/model/conf.go             | 53 +++++++++++++++++---------------
 2 files changed, 34 insertions(+), 26 deletions(-)
 rename kernel/conf/{Repo.go => repo.go} (82%)

diff --git a/kernel/conf/Repo.go b/kernel/conf/repo.go
similarity index 82%
rename from kernel/conf/Repo.go
rename to kernel/conf/repo.go
index 7a4b6f107..8f6ec861e 100644
--- a/kernel/conf/Repo.go
+++ b/kernel/conf/repo.go
@@ -23,11 +23,14 @@ import (
 )
 
 type Repo struct {
-	Key []byte `json:"key"` // AES 密钥
+	Key                  []byte `json:"key"`                  // AES 密钥
+	HistoryRetentionDays int    `json:"historyRetentionDays"` // 历史保留天数
 }
 
 func NewRepo() *Repo {
-	return &Repo{}
+	return &Repo{
+		HistoryRetentionDays: 30,
+	}
 }
 
 func (*Repo) GetSaveDir() string {
diff --git a/kernel/model/conf.go b/kernel/model/conf.go
index 2c4c0419a..a752547f5 100644
--- a/kernel/model/conf.go
+++ b/kernel/model/conf.go
@@ -192,18 +192,44 @@ func InitConf() {
 	if nil == Conf.Tag {
 		Conf.Tag = conf.NewTag()
 	}
+
 	if nil == Conf.Editor {
 		Conf.Editor = conf.NewEditor()
 	}
 	if 1 > len(Conf.Editor.Emoji) {
 		Conf.Editor.Emoji = []string{}
 	}
+	if 9 > Conf.Editor.FontSize || 72 < Conf.Editor.FontSize {
+		Conf.Editor.FontSize = 16
+	}
+	if "" == Conf.Editor.PlantUMLServePath {
+		Conf.Editor.PlantUMLServePath = "https://www.plantuml.com/plantuml/svg/~1"
+	}
 	if 1 > Conf.Editor.BlockRefDynamicAnchorTextMaxLen {
 		Conf.Editor.BlockRefDynamicAnchorTextMaxLen = 64
 	}
 	if 5120 < Conf.Editor.BlockRefDynamicAnchorTextMaxLen {
 		Conf.Editor.BlockRefDynamicAnchorTextMaxLen = 5120
 	}
+	if 1440 < Conf.Editor.GenerateHistoryInterval {
+		Conf.Editor.GenerateHistoryInterval = 1440
+	}
+	if 1 > Conf.Editor.HistoryRetentionDays {
+		Conf.Editor.HistoryRetentionDays = 30
+	}
+	if 48 > Conf.Editor.DynamicLoadBlocks {
+		Conf.Editor.DynamicLoadBlocks = 48
+	}
+	if 1024 < Conf.Editor.DynamicLoadBlocks {
+		Conf.Editor.DynamicLoadBlocks = 1024
+	}
+	if 0 > Conf.Editor.BacklinkExpandCount {
+		Conf.Editor.BacklinkExpandCount = 0
+	}
+	if 0 > Conf.Editor.BackmentionExpandCount {
+		Conf.Editor.BackmentionExpandCount = 0
+	}
+
 	if nil == Conf.Export {
 		Conf.Export = conf.NewExport()
 	}
@@ -214,16 +240,11 @@ func InitConf() {
 	if "" == Conf.Export.PandocBin {
 		Conf.Export.PandocBin = util.PandocBinPath
 	}
-	if 9 > Conf.Editor.FontSize || 72 < Conf.Editor.FontSize {
-		Conf.Editor.FontSize = 16
-	}
-	if "" == Conf.Editor.PlantUMLServePath {
-		Conf.Editor.PlantUMLServePath = "https://www.plantuml.com/plantuml/svg/~1"
-	}
 
 	if nil == Conf.Graph || nil == Conf.Graph.Local || nil == Conf.Graph.Global {
 		Conf.Graph = conf.NewGraph()
 	}
+
 	if nil == Conf.System {
 		Conf.System = conf.NewSystem()
 		Conf.OpenHelp = true
@@ -304,24 +325,8 @@ func InitConf() {
 	if nil == Conf.Repo {
 		Conf.Repo = conf.NewRepo()
 	}
-
-	if 1440 < Conf.Editor.GenerateHistoryInterval {
-		Conf.Editor.GenerateHistoryInterval = 1440
-	}
-	if 1 > Conf.Editor.HistoryRetentionDays {
-		Conf.Editor.HistoryRetentionDays = 7
-	}
-	if 48 > Conf.Editor.DynamicLoadBlocks {
-		Conf.Editor.DynamicLoadBlocks = 48
-	}
-	if 1024 < Conf.Editor.DynamicLoadBlocks {
-		Conf.Editor.DynamicLoadBlocks = 1024
-	}
-	if 0 > Conf.Editor.BacklinkExpandCount {
-		Conf.Editor.BacklinkExpandCount = 0
-	}
-	if 0 > Conf.Editor.BackmentionExpandCount {
-		Conf.Editor.BackmentionExpandCount = 0
+	if 1 > Conf.Repo.HistoryRetentionDays {
+		Conf.Repo.HistoryRetentionDays = 30
 	}
 
 	if nil == Conf.Search {