Initial sqlite3 compatibility

app.go

@@ -4,7 +4,7 @@ import (
 	"database/sql"
 	"flag"
 	"fmt"
-	_ "github.com/go-sql-driver/mysql"
+	_ "github.com/mattn/go-sqlite3"
 	"html/template"
 	"net/http"
 	"os"
@@ -258,7 +258,12 @@ func Serve() {
 
 func connectToDatabase(app *app) {
 	log.Info("Connecting to database...")
-	db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=true", app.cfg.Database.User, app.cfg.Database.Password, app.cfg.Database.Host, app.cfg.Database.Port, app.cfg.Database.Database))
+
+	if app.cfg.Database.Type != "sqlite3" {
+		log.Error("This fork of writefreely only supports sqlite3 databases")
+		os.Exit(1)
+	}
+	db, err := sql.Open("sqlite3", app.cfg.Database.Database)
 	if err != nil {
 		log.Error("%s", err)
 		os.Exit(1)