feat: docker download dir move to /app/Download (#398)

cmd/server.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	_ "embed"
 	"fmt"
+	"github.com/GopeedLab/gopeed/pkg/base"
 	"github.com/GopeedLab/gopeed/pkg/rest"
 	"github.com/GopeedLab/gopeed/pkg/rest/model"
 	"net/http"
@@ -24,14 +25,20 @@ func Start(cfg *model.StartConfig) {
 		panic(err)
 	}
 	if downloadCfg.FirstLoad {
-		// Set default download dir to user download dir
-		userDir, err := os.UserHomeDir()
-		if err == nil {
-			downloadDir := filepath.Join(userDir, "Downloads")
+		// Set default download dir, in docker, it will be ${exe}/Downloads, else it will be ${user}/Downloads
+		var downloadDir string
+		if base.InDocker {
+			downloadDir = filepath.Join(filepath.Dir(cfg.StorageDir), "Downloads")
+		} else {
+			userDir, err := os.UserHomeDir()
+			if err == nil {
+				downloadDir = filepath.Join(userDir, "Downloads")
+			}
+		}
+		if downloadDir != "" {
 			downloadCfg.DownloadDir = downloadDir
 			rest.Downloader.PutConfig(downloadCfg)
 		}
-
 	}
 	fmt.Printf("Server start success on http://%s\n", listener.Addr().String())
 	if err := srv.Serve(listener); err != nil && err != http.ErrServerClosed {