diff --git a/app/appearance/langs/en_US.json b/app/appearance/langs/en_US.json
index 3d55cbdc7..f76a6a0ed 100644
--- a/app/appearance/langs/en_US.json
+++ b/app/appearance/langs/en_US.json
@@ -1022,6 +1022,7 @@
     "175": "Please enter the verification code",
     "176": "SiYuan",
     "177": "Exit application",
-    "178": "Access Authorization - SiYuan"
+    "178": "Access Authorization - SiYuan",
+    "179": "The disk space may be insufficient. It is recommended to keep the free space of the disk where the workspace is located at more than twice the size of data"
   }
 }
diff --git a/app/appearance/langs/es_ES.json b/app/appearance/langs/es_ES.json
index a024337be..1601754e4 100644
--- a/app/appearance/langs/es_ES.json
+++ b/app/appearance/langs/es_ES.json
@@ -1023,6 +1023,7 @@
     "175": "Por favor ingrese el código de verificación",
     "176": "SiYuan",
     "177": "Salir de la aplicación",
-    "178": "Autorización de acceso - SiYuan"
+    "178": "Autorización de acceso - SiYuan",
+    "179": "El espacio en disco puede ser insuficiente. Se recomienda mantener el espacio libre del disco donde se encuentra el espacio de trabajo en más del doble del tamaño de los datos"
   }
 }
diff --git a/app/appearance/langs/fr_FR.json b/app/appearance/langs/fr_FR.json
index ac2aa376d..14b7d4e10 100644
--- a/app/appearance/langs/fr_FR.json
+++ b/app/appearance/langs/fr_FR.json
@@ -1022,6 +1022,7 @@
     "175": "Veuillez entrer le code de vérification",
     "176": "SiYuan",
     "177": "Quitter l'application",
-    "178": "Autorisation d'accès - SiYuan"
+    "178": "Autorisation d'accès - SiYuan",
+    "179": "L'espace disque peut être insuffisant. Il est recommandé de conserver l'espace libre du disque où se trouve l'espace de travail à plus de deux fois la taille des données"
   }
 }
diff --git a/app/appearance/langs/zh_CHT.json b/app/appearance/langs/zh_CHT.json
index 6b20a66f9..d2e2394b7 100644
--- a/app/appearance/langs/zh_CHT.json
+++ b/app/appearance/langs/zh_CHT.json
@@ -1022,6 +1022,7 @@
     "175": "請輸入驗證碼",
     "176": "思源筆記",
     "177": "退出應用",
-    "178": "訪問授權 - 思源筆記"
+    "178": "訪問授權 - 思源筆記",
+    "179": "磁盤空間可能不足，建議保持工作空間所在磁盤可用空間為 data 大小的 2 倍以上"
   }
 }
diff --git a/app/appearance/langs/zh_CN.json b/app/appearance/langs/zh_CN.json
index 8e7ccaf47..4a5b278c3 100644
--- a/app/appearance/langs/zh_CN.json
+++ b/app/appearance/langs/zh_CN.json
@@ -1022,6 +1022,7 @@
     "175": "请输入验证码",
     "176": "思源笔记",
     "177": "退出应用",
-    "178": "访问授权 - 思源笔记"
+    "178": "访问授权 - 思源笔记",
+    "179": "磁盘空间可能不足，建议保持工作空间所在磁盘可用空间为 data 大小的 2 倍以上"
   }
 }
diff --git a/app/src/config/about.ts b/app/src/config/about.ts
index 94432d4ef..7b8891ad4 100644
--- a/app/src/config/about.ts
+++ b/app/src/config/about.ts
@@ -339,7 +339,7 @@ export const about = {
                 }
                 confirmDialog("🔑 " + window.siyuan.languages.genKeyByPW, window.siyuan.languages.initRepoKeyTip, () => {
                     initDialog.destroy();
-                    fetchPost("/api/repo/InitRepoKeyFromPassphrase", {pass: inputElement.value}, (response) => {
+                    fetchPost("/api/repo/initRepoKeyFromPassphrase", {pass: inputElement.value}, (response) => {
                         window.siyuan.config.repo.key = response.data.key;
                         importKeyElement.parentElement.classList.add("fn__none");
                         importKeyElement.parentElement.nextElementSibling.classList.remove("fn__none");
diff --git a/app/src/mobile/util/menu.ts b/app/src/mobile/util/menu.ts
index 7858a4ce1..882a0de47 100644
--- a/app/src/mobile/util/menu.ts
+++ b/app/src/mobile/util/menu.ts
@@ -361,7 +361,7 @@ ${accountHTML}
                             }
                             confirmDialog("🔑 " + window.siyuan.languages.genKeyByPW, window.siyuan.languages.initRepoKeyTip, () => {
                                 initDialog.destroy();
-                                fetchPost("/api/repo/InitRepoKeyFromPassphrase", {pass: inputElement.value}, (response) => {
+                                fetchPost("/api/repo/initRepoKeyFromPassphrase", {pass: inputElement.value}, (response) => {
                                     window.siyuan.config.repo.key = response.data.key;
                                     importKeyElement.parentElement.classList.add("fn__none");
                                     importKeyElement.parentElement.nextElementSibling.classList.remove("fn__none");
diff --git a/app/src/sync/syncGuide.ts b/app/src/sync/syncGuide.ts
index 9056061b5..fccaa8db5 100644
--- a/app/src/sync/syncGuide.ts
+++ b/app/src/sync/syncGuide.ts
@@ -225,7 +225,7 @@ const setKey = () => {
             return;
         }
         confirmDialog("🔑 " + window.siyuan.languages.genKeyByPW, window.siyuan.languages.initRepoKeyTip, () => {
-            fetchPost("/api/repo/InitRepoKeyFromPassphrase", {pass: inputElement.value}, (response) => {
+            fetchPost("/api/repo/initRepoKeyFromPassphrase", {pass: inputElement.value}, (response) => {
                 setSync(response.data.key, dialog);
             });
         });
diff --git a/kernel/api/repo.go b/kernel/api/repo.go
index 60927e0fc..4eeec19a0 100644
--- a/kernel/api/repo.go
+++ b/kernel/api/repo.go
@@ -26,6 +26,31 @@ import (
 	"github.com/siyuan-note/siyuan/kernel/util"
 )
 
+func diffRepoSnapshots(c *gin.Context) {
+	ret := gulu.Ret.NewResult()
+	defer c.JSON(http.StatusOK, ret)
+
+	arg, ok := util.JsonArg(c, ret)
+	if !ok {
+		return
+	}
+
+	left := arg["left"].(string)
+	right := arg["right"].(string)
+	adds, updates, removes, err := model.DiffRepoSnapshots(left, right)
+	if nil != err {
+		ret.Code = -1
+		ret.Msg = err.Error()
+		return
+	}
+
+	ret.Data = map[string]interface{}{
+		"adds":    adds,
+		"updates": updates,
+		"removes": removes,
+	}
+}
+
 func getCloudSpace(c *gin.Context) {
 	ret := gulu.Ret.NewResult()
 	defer c.JSON(http.StatusOK, ret)
diff --git a/kernel/api/router.go b/kernel/api/router.go
index 9f44b8f24..5d4741690 100644
--- a/kernel/api/router.go
+++ b/kernel/api/router.go
@@ -284,7 +284,7 @@ func ServeAPI(ginServer *gin.Engine) {
 	ginServer.Handle("POST", "/api/bazaar/getBazaarPackageREAME", model.CheckAuth, getBazaarPackageREAME)
 
 	ginServer.Handle("POST", "/api/repo/initRepoKey", model.CheckAuth, initRepoKey)
-	ginServer.Handle("POST", "/api/repo/InitRepoKeyFromPassphrase", model.CheckAuth, initRepoKeyFromPassphrase)
+	ginServer.Handle("POST", "/api/repo/initRepoKeyFromPassphrase", model.CheckAuth, initRepoKeyFromPassphrase)
 	ginServer.Handle("POST", "/api/repo/resetRepo", model.CheckAuth, resetRepo)
 	ginServer.Handle("POST", "/api/repo/importRepoKey", model.CheckAuth, importRepoKey)
 	ginServer.Handle("POST", "/api/repo/createSnapshot", model.CheckAuth, createSnapshot)
@@ -297,6 +297,7 @@ func ServeAPI(ginServer *gin.Engine) {
 	ginServer.Handle("POST", "/api/repo/removeCloudRepoTagSnapshot", model.CheckAuth, removeCloudRepoTagSnapshot)
 	ginServer.Handle("POST", "/api/repo/uploadCloudSnapshot", model.CheckAuth, uploadCloudSnapshot)
 	ginServer.Handle("POST", "/api/repo/downloadCloudSnapshot", model.CheckAuth, downloadCloudSnapshot)
+	ginServer.Handle("POST", "/api/repo/diffRepoSnapshots", model.CheckAuth, diffRepoSnapshots)
 
 	ginServer.Handle("POST", "/api/notification/pushMsg", model.CheckAuth, pushMsg)
 	ginServer.Handle("POST", "/api/notification/pushErrMsg", model.CheckAuth, pushErrMsg)
diff --git a/kernel/go.mod b/kernel/go.mod
index 137140ca4..d7af5d16d 100644
--- a/kernel/go.mod
+++ b/kernel/go.mod
@@ -38,7 +38,7 @@ require (
 	github.com/panjf2000/ants/v2 v2.7.0
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/radovskyb/watcher v1.0.7
-	github.com/siyuan-note/dejavu v0.0.0-20221214071109-67333a5acbcb
+	github.com/siyuan-note/dejavu v0.0.0-20221214145020-50f5f6fe2ff2
 	github.com/siyuan-note/encryption v0.0.0-20220713091850-5ecd92177b75
 	github.com/siyuan-note/eventbus v0.0.0-20220916025349-3ac6e75522da
 	github.com/siyuan-note/filelock v0.0.0-20221117095924-e1947438a35e
@@ -65,6 +65,7 @@ require (
 	github.com/dlclark/regexp2 v1.7.0 // indirect
 	github.com/dsnet/compress v0.0.1 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-playground/locales v0.14.0 // indirect
 	github.com/go-playground/universal-translator v0.18.0 // indirect
 	github.com/go-playground/validator/v10 v10.11.1 // indirect
@@ -92,6 +93,7 @@ require (
 	github.com/klauspost/compress v1.15.13 // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect
 	github.com/lucas-clemente/quic-go v0.31.1 // indirect
+	github.com/lufia/plan9stats v0.0.0-20220913051719-115f729f3c8c // indirect
 	github.com/marten-seemann/qpack v0.3.0 // indirect
 	github.com/marten-seemann/qtls-go1-16 v0.1.5 // indirect
 	github.com/marten-seemann/qtls-go1-17 v0.1.2 // indirect
@@ -105,13 +107,18 @@ require (
 	github.com/onsi/ginkgo/v2 v2.6.0 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
+	github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b // indirect
 	github.com/qiniu/go-sdk/v7 v7.14.0 // indirect
 	github.com/restic/chunker v0.4.0 // indirect
 	github.com/sabhiram/go-gitignore v0.0.0-20210923224102-525f6e181f06 // indirect
+	github.com/shirou/gopsutil/v3 v3.22.11 // indirect
 	github.com/shopspring/decimal v1.3.1 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.11 // indirect
+	github.com/tklauser/numcpus v0.6.0 // indirect
 	github.com/ugorji/go/codec v1.2.7 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
 	golang.org/x/crypto v0.4.0 // indirect
diff --git a/kernel/go.sum b/kernel/go.sum
index 974f40691..a4979e289 100644
--- a/kernel/go.sum
+++ b/kernel/go.sum
@@ -108,6 +108,8 @@ github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aev
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxIA=
 github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
+github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
@@ -156,7 +158,9 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@@ -241,6 +245,9 @@ github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ic
 github.com/lucas-clemente/quic-go v0.28.1/go.mod h1:oGz5DKK41cJt5+773+BSO9BXDsREY4HLf7+0odGAPO0=
 github.com/lucas-clemente/quic-go v0.31.1 h1:O8Od7hfioqq0PMYHDyBkxU2aA7iZ2W9pjbrWuja2YR4=
 github.com/lucas-clemente/quic-go v0.31.1/go.mod h1:0wFbizLgYzqHqtlyxyCaJKlE7bYgE6JQ+54TLd/Dq2g=
+github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
+github.com/lufia/plan9stats v0.0.0-20220913051719-115f729f3c8c h1:VtwQ41oftZwlMnOEbMWQtSEUgU64U4s+GHk7hZK+jtY=
+github.com/lufia/plan9stats v0.0.0-20220913051719-115f729f3c8c/go.mod h1:JKx41uQRwqlTZabZc+kILPrO/3jlKnQ2Z8b7YiVw5cE=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/mailru/easyjson v0.0.0-20190312143242-1de009706dbe/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/marten-seemann/qpack v0.2.1/go.mod h1:F7Gl5L1jIgN1D11ucXefiuJS9UMVP2opoCp2jDKb7wc=
@@ -313,6 +320,9 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
+github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b h1:0LFwY6Q3gMACTjAbMZBjXAqTOzOwFaj2Ld6cjeQ7Rig=
+github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
 github.com/prometheus/client_golang v0.8.0/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
@@ -334,6 +344,8 @@ github.com/sabhiram/go-gitignore v0.0.0-20210923224102-525f6e181f06 h1:OkMGxebDj
 github.com/sabhiram/go-gitignore v0.0.0-20210923224102-525f6e181f06/go.mod h1:+ePHsJ1keEjQtpvf9HHw0f4ZeJ0TLRsxhunSI2hYJSs=
 github.com/scylladb/termtables v0.0.0-20191203121021-c4c0b6d42ff4/go.mod h1:C1a7PQSMz9NShzorzCiG2fk9+xuCgLkPeCvMHYR2OWg=
 github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
+github.com/shirou/gopsutil/v3 v3.22.11 h1:kxsPKS+Eeo+VnEQ2XCaGJepeP6KY53QoRTETx3+1ndM=
+github.com/shirou/gopsutil/v3 v3.22.11/go.mod h1:xl0EeL4vXJ+hQMAGN8B9VFpxukEMA0XdevQOe5MZ1oY=
 github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/shopspring/decimal v1.3.1 h1:2Usl1nmF/WZucqkFZhnfFYxxxu8LG21F6nPQBE5gKV8=
 github.com/shopspring/decimal v1.3.1/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
@@ -361,8 +373,8 @@ github.com/shurcooL/reactions v0.0.0-20181006231557-f2e0b4ca5b82/go.mod h1:TCR1l
 github.com/shurcooL/sanitized_anchor_name v0.0.0-20170918181015-86672fcb3f95/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/shurcooL/users v0.0.0-20180125191416-49c67e49c537/go.mod h1:QJTqeLYEDaXHZDBsXlPCDqdhQuJkuw4NOtaxYe3xii4=
 github.com/shurcooL/webdavfs v0.0.0-20170829043945-18c3829fa133/go.mod h1:hKmq5kWdCj2z2KEozexVbfEZIWiTjhE0+UjmZgPqehw=
-github.com/siyuan-note/dejavu v0.0.0-20221214071109-67333a5acbcb h1:fS8iB5d7x57eyfvNjqlDOTL9XglVCSBtGoa5e3nQTkY=
-github.com/siyuan-note/dejavu v0.0.0-20221214071109-67333a5acbcb/go.mod h1:aarwJw3uJaqNoIGVLmyhZjMCjI+xAzwrMIg05scqmtc=
+github.com/siyuan-note/dejavu v0.0.0-20221214145020-50f5f6fe2ff2 h1:w3iDXHaYf5lFmzJTl31qM6KVfWWU0QbAJg4nAZDsKrQ=
+github.com/siyuan-note/dejavu v0.0.0-20221214145020-50f5f6fe2ff2/go.mod h1:aarwJw3uJaqNoIGVLmyhZjMCjI+xAzwrMIg05scqmtc=
 github.com/siyuan-note/encryption v0.0.0-20220713091850-5ecd92177b75 h1:Bi7/7f29LW+Fm0cHc0J1NO1cZqyJwljSWVmfOqVZgaE=
 github.com/siyuan-note/encryption v0.0.0-20220713091850-5ecd92177b75/go.mod h1:H8fyqqAbp9XreANjeSbc72zEdFfKTXYN34tc1TjZwtw=
 github.com/siyuan-note/eventbus v0.0.0-20220916025349-3ac6e75522da h1:/jNhl7LC+9BhkWvNxuJDdsNfA/2wvfuj9mqWx4CbV90=
@@ -400,6 +412,10 @@ github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o
 github.com/studio-b12/gowebdav v0.0.0-20221109171924-60ec5ad56012 h1:ZC+dlnsjxqrcB68nEFbIEfo4iXsog3Sg8FlXKytAjhY=
 github.com/studio-b12/gowebdav v0.0.0-20221109171924-60ec5ad56012/go.mod h1:bHA7t77X/QFExdeAnDzK6vKM34kEZAcE1OX4MfiwjkE=
 github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
+github.com/tklauser/go-sysconf v0.3.11 h1:89WgdJhk5SNwJfu+GKyYveZ4IaJ7xAkecBo+KdJV0CM=
+github.com/tklauser/go-sysconf v0.3.11/go.mod h1:GqXfhXY3kiPa0nAXPDIQIWzJbMCB7AmcWpGR8lSZfqI=
+github.com/tklauser/numcpus v0.6.0 h1:kebhY2Qt+3U6RNK7UqpYNA+tJ23IBEGKkB7JQBfDYms=
+github.com/tklauser/numcpus v0.6.0/go.mod h1:FEZLMke0lhOUG6w2JadTzp0a+Nl8PF/GFkQ5UVIcaL4=
 github.com/ugorji/go v1.2.7/go.mod h1:nF9osbDWLy6bDVv/Rtoh6QgnvNDpmCalQV5urGCCS6M=
 github.com/ugorji/go/codec v1.2.7 h1:YPXUKf7fYbp/y8xloBqZOw2qaVggbfwMlI8WM3wZUJ0=
 github.com/ugorji/go/codec v1.2.7/go.mod h1:WGN1fab3R1fzQlVQTkfxVtIBhWDRqOviHU95kRgeqEY=
@@ -416,6 +432,8 @@ github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9dec
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.0/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+github.com/yusufpapurcu/wmi v1.2.2 h1:KBNDSne4vP5mbSWnJbO+51IMOXJB67QiYCSBrubbPRg=
+github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
 go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
 go.uber.org/atomic v1.10.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
@@ -510,6 +528,7 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190316082340-a2f829d7f35f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -517,6 +536,7 @@ golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/kernel/model/box.go b/kernel/model/box.go
index b6a746560..2d32d6441 100644
--- a/kernel/model/box.go
+++ b/kernel/model/box.go
@@ -20,6 +20,7 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
+	"github.com/shirou/gopsutil/v3/disk"
 	"io/ioutil"
 	"os"
 	"path"
@@ -78,6 +79,21 @@ func autoStat() {
 	Conf.Save()
 
 	logging.LogInfof("auto stat [trees=%d, blocks=%d, dataSize=%s, assetsSize=%s]", Conf.Stat.TreeCount, Conf.Stat.BlockCount, humanize.Bytes(uint64(Conf.Stat.DataSize)), humanize.Bytes(uint64(Conf.Stat.AssetsSize)))
+
+	// 桌面端检查磁盘可用空间 https://github.com/siyuan-note/siyuan/issues/6873
+	if util.ContainerStd != util.Container {
+		return
+	}
+
+	usage, err := disk.Usage(util.WorkspaceDir)
+	if nil != err {
+		logging.LogErrorf("get disk usage failed: %s", err)
+		return
+	}
+	logging.LogInfof("disk usage [total=%s, used=%s, free=%s]", humanize.Bytes(usage.Total), humanize.Bytes(usage.Used), humanize.Bytes(usage.Free))
+	if usage.Free < uint64(Conf.Stat.DataSize*2) {
+		util.PushMsg(Conf.Language(179), 7000)
+	}
 }
 
 func ListNotebooks() (ret []*Box, err error) {
diff --git a/kernel/model/export.go b/kernel/model/export.go
index a3136cbd1..8a6d3a5b3 100644
--- a/kernel/model/export.go
+++ b/kernel/model/export.go
@@ -741,10 +741,24 @@ func exportMarkdownZip(boxID, baseFolderName string, docPaths []string) (zipPath
 		return ""
 	}
 
-	if err = zip.AddDirectory(baseFolderName, exportFolder); nil != err {
-		logging.LogErrorf("create export markdown zip [%s] failed: %s", exportFolder, err)
+	// 导出 Markdown zip 包内不带文件夹 https://github.com/siyuan-note/siyuan/issues/6869
+	entries, err := os.ReadDir(exportFolder)
+	if nil != err {
+		logging.LogErrorf("read export markdown folder [%s] failed: %s", exportFolder, err)
 		return ""
 	}
+	for _, entry := range entries {
+		entryPath := filepath.Join(exportFolder, entry.Name())
+		if gulu.File.IsDir(entryPath) {
+			err = zip.AddDirectory(entry.Name(), entryPath)
+		} else {
+			err = zip.AddEntry(entry.Name(), entryPath)
+		}
+		if nil != err {
+			logging.LogErrorf("add entry [%s] to zip failed: %s", entry.Name(), err)
+			return ""
+		}
+	}
 
 	if err = zip.Close(); nil != err {
 		logging.LogErrorf("close export markdown zip failed: %s", err)
diff --git a/kernel/model/repository.go b/kernel/model/repository.go
index d2d2b9e55..2cbb93024 100644
--- a/kernel/model/repository.go
+++ b/kernel/model/repository.go
@@ -64,6 +64,30 @@ type TypeCount struct {
 	Count int    `json:"count"`
 }
 
+func DiffRepoSnapshots(left, right string) (adds, updates, removes []*entity.File, err error) {
+	if 1 > len(Conf.Repo.Key) {
+		err = errors.New(Conf.Language(26))
+		return
+	}
+
+	repo, err := newRepository()
+	if nil != err {
+		return
+	}
+
+	leftIndex, err := repo.GetIndex(left)
+	if nil != err {
+		return
+	}
+	rightIndex, err := repo.GetIndex(right)
+	if nil != err {
+		return
+	}
+
+	adds, updates, removes, err = repo.DiffIndex(leftIndex, rightIndex)
+	return
+}
+
 func GetRepoSnapshots(page int) (ret []*Snapshot, pageCount, totalCount int, err error) {
 	ret = []*Snapshot{}
 	if 1 > len(Conf.Repo.Key) {
@@ -89,12 +113,16 @@ func GetRepoSnapshots(page int) (ret []*Snapshot, pageCount, totalCount int, err
 	}
 
 	ret = buildSnapshots(logs)
+	if 1 > len(ret) {
+		ret = []*Snapshot{}
+	}
 	return
 }
 
 func buildSnapshots(logs []*dejavu.Log) (ret []*Snapshot) {
 	for _, l := range logs {
 		typesCount := statTypesByPath(l.Files)
+		l.Files = nil // 置空，否则返回前端数据量太大
 		ret = append(ret, &Snapshot{
 			Log:        l,
 			TypesCount: typesCount,
@@ -426,6 +454,9 @@ func GetTagSnapshots() (ret []*Snapshot, err error) {
 		return
 	}
 	ret = buildSnapshots(logs)
+	if 1 > len(ret) {
+		ret = []*Snapshot{}
+	}
 	return
 }
 
@@ -930,7 +961,7 @@ func subscribeEvents() {
 	indexWalkDataCount := 0
 	eventbus.Subscribe(eventbus.EvtIndexWalkData, func(context map[string]interface{}, path string) {
 		msg := fmt.Sprintf(Conf.Language(158), filepath.Base(path))
-		if 0 == indexWalkDataCount%512 {
+		if 0 == indexWalkDataCount%1024 {
 			util.SetBootDetails(msg)
 			util.ContextPushMsg(context, msg)
 		}
@@ -944,7 +975,7 @@ func subscribeEvents() {
 	getLatestFileCount := 0
 	eventbus.Subscribe(eventbus.EvtIndexGetLatestFile, func(context map[string]interface{}, id string) {
 		msg := fmt.Sprintf(Conf.Language(159), id[:7])
-		if 0 == getLatestFileCount%512 {
+		if 0 == getLatestFileCount%1024 {
 			util.SetBootDetails(msg)
 			util.ContextPushMsg(context, msg)
 		}
@@ -973,7 +1004,7 @@ func subscribeEvents() {
 	coWalkDataCount := 0
 	eventbus.Subscribe(eventbus.EvtCheckoutWalkData, func(context map[string]interface{}, path string) {
 		msg := fmt.Sprintf(Conf.Language(161), filepath.Base(path))
-		if 0 == coWalkDataCount%512 {
+		if 0 == coWalkDataCount%1024 {
 			util.SetBootDetails(msg)
 			util.ContextPushMsg(context, msg)
 		}
@@ -1005,7 +1036,7 @@ func subscribeEvents() {
 	eventbus.Subscribe(eventbus.EvtCheckoutRemoveFile, func(context map[string]interface{}, path string) {
 		msg := fmt.Sprintf(Conf.Language(163), filepath.Base(path))
 		util.IncBootProgress(bootProgressPart, msg)
-		if 0 == coRemoveFileCount%512 {
+		if 0 == coRemoveFileCount%1024 {
 			util.ContextPushMsg(context, msg)
 		}
 		coRemoveFileCount++