Feat: check new versions while booting

bootstrap/app.go

@@ -1,8 +1,12 @@
 package bootstrap
 
 import (
+	"encoding/json"
 	"fmt"
 	"github.com/HFO4/cloudreve/pkg/conf"
+	"github.com/HFO4/cloudreve/pkg/request"
+	"github.com/HFO4/cloudreve/pkg/util"
+	"github.com/hashicorp/go-version"
 )
 
 // InitApplication 初始化应用常量
@@ -18,4 +22,34 @@ func InitApplication() {
 ================================================
 
 `)
+	go CheckUpdate()
+}
+
+type GitHubRelease struct {
+	URL  string `json:"html_url"`
+	Name string `json:"name"`
+	Tag  string `json:"tag_name"`
+}
+
+// CheckUpdate 检查更新
+func CheckUpdate() {
+	client := request.HTTPClient{}
+	res, err := client.Request("GET", "https://api.github.com/repos/cloudreve/cloudreve/releases", nil).GetResponse()
+	if err != nil {
+		util.Log().Warning("更新检查失败, %s", err)
+	}
+
+	var list []GitHubRelease
+	if err := json.Unmarshal([]byte(res), &list); err != nil {
+		util.Log().Warning("更新检查失败, %s", err)
+	}
+
+	if len(list) > 0 {
+		present, err1 := version.NewVersion(conf.BackendVersion)
+		latest, err2 := version.NewVersion(list[0].Tag)
+		if err1 == nil && err2 == nil && latest.GreaterThan(present) {
+			util.Log().Info("有新的版本 [%s] 可用，下载：%s", list[0].Name, list[0].URL)
+		}
+	}
+
 }