Checks for arguments before consuming STDIN. #5

Author: Mariano Gappa

main.go

@@ -22,15 +22,15 @@ type database struct {
 func main() {
 	databases := mustReadDatabasesConfigFile()
 
+	if len(os.Args[1:]) == 0 {
+		usage("Target database unspecified; where should I run the query?")
+	}
+
 	sql := readInput(os.Stdin)
 	if len(sql) <= 3 {
 		usage("No SQL to run. Exiting.")
 	}
 
-	if len(os.Args[1:]) == 0 {
-		usage("Target database unspecified; where should I run the query?")
-	}
-
 	targetDatabases := []string{}
 	for _, k := range os.Args[1:] {
 		if _, ok := databases[k]; k != "all" && !ok {

usage.go

@@ -25,7 +25,7 @@ e.g.
 
   echo "SELECT * FROM users WHERE name = 'John'" | sql all
 
-For more detailed help, please go to: https://github.com/MarianoGappa/sql
+For more detailed help, please go to: https://github.com/marianogappa/sql
 `)
 	os.Exit(1)
 }