From 534d8d30fc2da997899f3dea350b5ef06c49ccd7 Mon Sep 17 00:00:00 2001
From: Noah Hsu <i@nn.ci>
Date: Mon, 5 Sep 2022 16:40:51 +0800
Subject: [PATCH] feat: skip generate lang if no changes

---
 cmd/lang.go       | 45 +++++++++++++++++++++++++++++++++++++++++++--
 pkg/utils/json.go |  4 ++--
 2 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/cmd/lang.go b/cmd/lang.go
index 6b15a291..41b39e15 100644
--- a/cmd/lang.go
+++ b/cmd/lang.go
@@ -6,7 +6,9 @@ package cmd
 
 import (
 	"fmt"
+	"io"
 	"os"
+	"reflect"
 	"strings"
 
 	_ "github.com/alist-org/alist/v3/drivers"
@@ -14,6 +16,7 @@ import (
 	"github.com/alist-org/alist/v3/internal/conf"
 	"github.com/alist-org/alist/v3/internal/op"
 	"github.com/alist-org/alist/v3/pkg/utils"
+	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
@@ -34,6 +37,43 @@ func convert(s string) string {
 	return firstUpper(ans)
 }
 
+func writeFile(name string, data interface{}) {
+	f, err := os.Open(fmt.Sprintf("../alist-web/src/lang/en/%s.json", name))
+	if err != nil {
+		log.Errorf("failed to open %s.json: %+v", name, err)
+		return
+	}
+	content, err := io.ReadAll(f)
+	if err != nil {
+		log.Errorf("failed to read %s.json: %+v", name, err)
+		return
+	}
+	oldData := make(map[string]interface{})
+	newData := make(map[string]interface{})
+	err = utils.Json.Unmarshal(content, &oldData)
+	if err != nil {
+		log.Errorf("failed to unmarshal %s.json: %+v", name, err)
+		return
+	}
+	content, err = utils.Json.Marshal(data)
+	if err != nil {
+		log.Errorf("failed to marshal json: %+v", err)
+		return
+	}
+	err = utils.Json.Unmarshal(content, &newData)
+	if err != nil {
+		log.Errorf("failed to unmarshal json: %+v", err)
+		return
+	}
+	if reflect.DeepEqual(oldData, newData) {
+		log.Infof("%s.json no changed, skip", name)
+	} else {
+		log.Infof("%s.json changed, update file", name)
+		//log.Infof("old: %+v\nnew:%+v", oldData, data)
+		utils.WriteJsonToFile(fmt.Sprintf("lang/%s.json", name), data)
+	}
+}
+
 func generateDriversJson() {
 	drivers := make(Drivers)
 	drivers["drivers"] = make(KV[interface{}])
@@ -58,7 +98,7 @@ func generateDriversJson() {
 		}
 		drivers[k] = items
 	}
-	utils.WriteJsonToFile("lang/drivers.json", drivers)
+	writeFile("drivers", drivers)
 }
 
 func generateSettingsJson() {
@@ -78,7 +118,8 @@ func generateSettingsJson() {
 			settingsLang[fmt.Sprintf("%ss", setting.Key)] = options
 		}
 	}
-	utils.WriteJsonToFile("lang/settings.json", settingsLang)
+	writeFile("settings", settingsLang)
+	//utils.WriteJsonToFile("lang/settings.json", settingsLang)
 }
 
 // langCmd represents the lang command
diff --git a/pkg/utils/json.go b/pkg/utils/json.go
index 5dea3650..5489775e 100644
--- a/pkg/utils/json.go
+++ b/pkg/utils/json.go
@@ -1,7 +1,7 @@
 package utils
 
 import (
-	"io/ioutil"
+	"os"
 
 	json "github.com/json-iterator/go"
 	log "github.com/sirupsen/logrus"
@@ -16,7 +16,7 @@ func WriteJsonToFile(dst string, data interface{}) bool {
 		log.Errorf("failed convert Conf to []byte:%s", err.Error())
 		return false
 	}
-	err = ioutil.WriteFile(dst, str, 0777)
+	err = os.WriteFile(dst, str, 0777)
 	if err != nil {
 		log.Errorf("failed to write json file:%s", err.Error())
 		return false