Add template path check in MergeTemplate function

entrypoint.sh

@@ -1,8 +1,9 @@
 #!/bin/sh
+cd /app
 if [ ! -d "/app/templates" ]; then
 	mkdir /app/templates
 fi
 if [ -z "$(ls -A /app/templates)" ]; then
 	cp -r /app/templates-origin/* /app/templates
 fi
-/app/sub2sing-box server
+sub2sing-box server

pkg/util/convert.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"net/http"
 	"os"
+	"path/filepath"
 	"regexp"
 	"strings"
 
@@ -97,6 +98,11 @@ func Convert(subscriptions []string, proxies []string, template string, delete s
 }
 
 func MergeTemplate(proxies []model.Proxy, template string) (string, error) {
+	if !strings.Contains(template, string(filepath.Separator)) {
+		if _, err := os.Stat(template); os.IsNotExist(err) {
+			template = filepath.Join("templates", template)
+		}
+	}
 	config, err := ReadTemplate(template)
 	proxyTags := make([]string, 0)
 	if err != nil {