Minor improvements to the Go code

* Don't log.Fatal if there's no .env, there won't be a .env if you run
with ENV variables
* Make the DSN multiline so it's easier to read

.gitignore

@@ -3,3 +3,4 @@ static
 .env
 storage
 ana
+coverage.out

ana.go

@@ -9,10 +9,12 @@ import (
 )
 
 func main() {
+	log.Println("starting...")
+
 	// load .env file
 	err := godotenv.Load()
 	if err != nil {
-		log.Fatal("Error loading .env file")
+		log.Println("no .env file found")
 	}
 
 	// setup database connection

commands/commands.go

@@ -4,15 +4,17 @@ import (
 	"flag"
 )
 
-var runCreateUserCommand bool
-var runDeleteUserCommand bool
-var runStartServerCommand bool
-var runSeedDataCommand bool
-var runArchiveDataCommand bool
-var idArg int
-var emailArg string
-var passwordArg string
-var nArg int
+var (
+	runCreateUserCommand  bool
+	runDeleteUserCommand  bool
+	runStartServerCommand bool
+	runSeedDataCommand    bool
+	runArchiveDataCommand bool
+	idArg                 int
+	emailArg              string
+	passwordArg           string
+	nArg                  int
+)
 
 func Parse() {
 	// parse commands

db/db.go

@@ -3,8 +3,9 @@ package db
 import (
 	"database/sql"
 	"fmt"
-	_ "github.com/go-sql-driver/mysql"
 	"os"
+
+	_ "github.com/go-sql-driver/mysql"
 )
 
 var Conn *sql.DB
@@ -12,9 +13,15 @@ var Conn *sql.DB
 // SetupDatabaseConnection opens up & returns a SQL connection
 func SetupDatabaseConnection() (*sql.DB, error) {
 	var err error
-	var dataSourceName = fmt.Sprintf("%s:%s@%s/%s", os.Getenv("ANA_DATABASE_USER"), os.Getenv("ANA_DATABASE_PASSWORD"), os.Getenv("ANA_DATABASE_HOST"), os.Getenv("ANA_DATABASE_NAME"))
+	var dsn = fmt.Sprintf(
+		"%s:%s@%s/%s",
+		os.Getenv("ANA_DATABASE_USER"),
+		os.Getenv("ANA_DATABASE_PASSWORD"),
+		os.Getenv("ANA_DATABASE_HOST"),
+		os.Getenv("ANA_DATABASE_NAME"),
+	)
 
-	Conn, err = sql.Open("mysql", dataSourceName)
+	Conn, err = sql.Open("mysql", dsn)
 	if err != nil {
 		return nil, err
 	}