update reademe and use flags

README.md

@@ -25,8 +25,11 @@ sudo yum install -y go mariadb-server mariadb
 
 * go get https://github.com/ewhal/Pastebin
 * nano pastebin.go
-* Configure port and database details
 * make
+```
+./pastebin --db-name="pastes" --db-username="pastebin" --db-pass=""
+--port=":9900" --length=6
+```
 
 ## License
 

pastebin.go

@@ -7,6 +7,7 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"encoding/xml"
+	"flag"
 	"fmt"
 	"html"
 	"html/template"
@@ -27,19 +28,19 @@ import (
 	"github.com/gorilla/mux"
 )
 
-const (
+var (
 	// ADDRESS that pastebin will return links for
-	ADDRESS = "http://localhost:9900"
+	ADDRESS string
 	// LENGTH of paste id
-	LENGTH = 6
+	LENGTH int
 	// PORT that pastebin will listen on
-	PORT = ":9900"
+	PORT string
 	// USERNAME for database
-	USERNAME = ""
+	USERNAME string
 	// PASS database password
-	PASS = ""
+	PASS string
 	// NAME database name
-	NAME = ""
+	NAME string
 	// DATABASE connection String
 	DATABASE = USERNAME + ":" + PASS + "@/" + NAME + "?charset=utf8"
 )
@@ -380,6 +381,14 @@ func RootHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func main() {
+	flag.StringVar(&ADDRESS, "address", "", "host to serve pastes on")
+	flag.StringVar(&PORT, "port", ":9990", "host to serve pastes on")
+	flag.StringVar(&USERNAME, "db-username", "", "db username")
+	flag.StringVar(&PASS, "db-pass", "", "db pass")
+	flag.StringVar(&NAME, "db-name", "", "db name")
+	flag.IntVar(&LENGTH, "id-length", 6, "length of uploaded file IDs")
+	flag.Parse()
+
 	router := mux.NewRouter()
 	router.HandleFunc("/p/{pasteId}", PasteHandler).Methods("GET")
 	router.HandleFunc("/raw/{pasteId}", RawHandler).Methods("GET")