dump config

app/config.go

@@ -8,11 +8,13 @@ import (
 
 type Config struct {
   Port int        `json:"port"`
+  EnableInitialRendering bool   `json:"enableinitialrendering"`
 }
 
 func ParseConfig(filename string) (*Config, error) {
   cfg := Config{
     Port: 80,
+    EnableInitialRendering: true,
   }
 
   info, err := os.Stat(filename)

main.go

@@ -6,6 +6,8 @@ import (
 	"mapserver/layerconfig"
 	"mapserver/app"
 	"mapserver/params"
+	"encoding/json"
+
 	"fmt"
 )
 
@@ -35,8 +37,17 @@ func main() {
 		panic(err)
 	}
 
-	//setup app context
+	if p.Dumpconfig {
+		str, err := json.MarshalIndent(cfg, "", "	")
+		if err != nil {
+			panic(err)
+		}
 
+		fmt.Println(string(str))
+		return
+	}
+
+	//setup app context
 	ctx, err := app.Setup(p, cfg)
 
 	if err != nil {

params/params.go

@@ -7,6 +7,7 @@ import (
 type ParamsType struct {
 	Help     		bool
 	Version  		bool
+	Dumpconfig	bool
 }
 
 func Parse() ParamsType {
@@ -14,6 +15,7 @@ func Parse() ParamsType {
 
 	flag.BoolVar(&(params.Help), "help", false, "Show help")
 	flag.BoolVar(&(params.Version), "version", false, "Show version")
+	flag.BoolVar(&(params.Dumpconfig), "dumpconfig", false, "dump mapserver.json and exit")
 	flag.Parse()
 
 	return params