Improve repos file not found error (#75)

warden/cmd/audit.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"log"
 	"os"
 	"strings"
 
@@ -53,12 +52,12 @@ var (
 
 			repoFile, _, err := loadRepositoriesFile(repositoriesFileFl)
 			if err != nil {
-				log.Fatal(err)
+				return err
 			}
 
 			policy, _, err := loadPolicyFile(policyFileFl)
 			if err != nil {
-				log.Fatal(err)
+				return err
 			}
 
 			ghToken := viper.GetString("githubToken")

warden/cmd/util.go

@@ -43,7 +43,7 @@ func loadRepositoriesFile(customPath string) (*RepositoriesFile, []byte, error)
 
 	yamlContent, err = loadYAMLFile("repositories.yml", customPath)
 	if err != nil {
-		return nil, nil, fmt.Errorf("A Repositories file was not found. Either './repositories.yml' needs to be used or the '--repositoriesFile' flag set.")
+		return nil, nil, fmt.Errorf("./repositories.yml' was not found. The file either doesn't exist, you're in the wrong directory, or the '--repositoriesFile' flag needs to be set.")
 	}
 
 	err = yaml.Unmarshal(yamlContent, &repositoriesFile)