Allow adding new files to an empty repo (#24164)

![image](https://user-images.githubusercontent.com/2114189/232561612-2bfcfd0a-fc04-47ba-965f-5d0bcea46c54.png)

modules/setting/setting.go

@@ -27,7 +27,7 @@ import (
 var (
 	// AppVer is the version of the current build of Gitea. It is set in main.go from main.Version.
 	AppVer string
-	// AppBuiltWith represents a human readable version go runtime build version and build tags. (See main.go formatBuiltWith().)
+	// AppBuiltWith represents a human-readable version go runtime build version and build tags. (See main.go formatBuiltWith().)
 	AppBuiltWith string
 	// AppStartTime store time gitea has started
 	AppStartTime time.Time
@@ -40,7 +40,8 @@ var (
 	// AppWorkPath is used as the base path for several other paths.
 	AppWorkPath string
 
-	// Global setting objects
+	// Other global setting objects
+
 	CfgProvider ConfigProvider
 	CustomPath  string // Custom directory path
 	CustomConf  string
@@ -48,6 +49,10 @@ var (
 	RunUser     string
 	IsProd      bool
 	IsWindows   bool
+
+	// IsInTesting indicates whether the testing is running. A lot of unreliable code causes a lot of nonsense error logs during testing
+	// TODO: this is only a temporary solution, we should make the test code more reliable
+	IsInTesting = false
 )
 
 func getAppPath() (string, error) {
@@ -108,8 +113,12 @@ func getWorkPath(appPath string) string {
 
 func init() {
 	IsWindows = runtime.GOOS == "windows"
+	if AppVer == "" {
+		AppVer = "dev"
+	}
+
 	// We can rely on log.CanColorStdout being set properly because modules/log/console_windows.go comes before modules/setting/setting.go lexicographically
-	// By default set this logger at Info - we'll change it later but we need to start with something.
+	// By default set this logger at Info - we'll change it later, but we need to start with something.
 	log.NewLogger(0, "console", "console", fmt.Sprintf(`{"level": "info", "colorize": %t, "stacktraceLevel": "none"}`, log.CanColorStdout))
 
 	var err error