Make it possible to actually use redis for caching through the config flags

config/config.go

@@ -6,6 +6,7 @@ type Config struct {
 	Gitea    GiteaConfig
 	Database DatabaseConfig
 	ACME     ACMEConfig
+	RedisURL string `default:""`
 }
 
 type ServerConfig struct {

config/setup.go

@@ -54,6 +54,9 @@ func MergeConfig(ctx *cli.Context, config *Config) {
 	mergeGiteaConfig(ctx, &config.Gitea)
 	mergeDatabaseConfig(ctx, &config.Database)
 	mergeACMEConfig(ctx, &config.ACME)
+	if ctx.IsSet("redis-url") {
+		config.RedisURL = ctx.String("redis-url")
+	}
 }
 
 func mergeServerConfig(ctx *cli.Context, config *ServerConfig) {