Feat: check new versions while booting

bootstrap/app.go

 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)
+		}
+	}
+
 }

go.mod

@@ -18,6 +18,7 @@ require (
 	github.com/gomodule/redigo v2.0.0+incompatible
 	github.com/google/go-querystring v1.0.0
 	github.com/gorilla/websocket v1.4.1
+	github.com/hashicorp/go-version v1.2.0
 	github.com/jinzhu/gorm v1.9.11
 	github.com/juju/ratelimit v1.0.1
 	github.com/mattn/go-colorable v0.1.4 // indirect

go.sum

@@ -116,6 +116,8 @@ github.com/gorilla/sessions v1.1.3 h1:uXoZdcdA5XdXF3QzuSlheVRUvjl+1rKY7zBXL68L9R
 github.com/gorilla/sessions v1.1.3/go.mod h1:8KCfur6+4Mqcc6S0FEfKuN15Vl5MgXW92AE8ovaJD0w=
 github.com/gorilla/websocket v1.4.1 h1:q7AeDBpnBk8AogcD4DSag/Ukw/KV+YhzLj2bP5HvKCM=
 github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/hashicorp/go-version v1.2.0 h1:3vNe/fWF5CBgRIguda1meWhsZHy3m8gCJ5wx+dIzX/E=
+github.com/hashicorp/go-version v1.2.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/jinzhu/gorm v1.9.11 h1:gaHGvE+UnWGlbWG4Y3FUwY1EcZ5n6S9WtqBA/uySMLE=