make current directory as default for scanning IaC

cmd/terrascan/main.go

@@ -37,7 +37,7 @@ func main() {
 		iacType     = flag.String("iac", "", "IaC provider (supported values: terraform)")
 		iacVersion  = flag.String("iac-version", "default", "IaC version (supported values: 'v12' for terraform)")
 		iacFilePath = flag.String("f", "", "IaC file path")
-		iacDirPath  = flag.String("d", "", "IaC directory path")
+		iacDirPath  = flag.String("d", ".", "IaC directory path")
 		policyPath  = flag.String("p", "", "Policy directory path")
 
 		// cloud flags

pkg/runtime/executor.go

@@ -99,10 +99,10 @@ func (e *Executor) Execute() (results policy.EngineOutput, err error) {
 
 	// create results output from Iac
 	var normalized output.AllResourceConfigs
-	if e.dirPath != "" {
-		normalized, err = e.iacProvider.LoadIacDir(e.dirPath)
-	} else {
+	if e.filePath != "" {
 		normalized, err = e.iacProvider.LoadIacFile(e.filePath)
+	} else {
+		normalized, err = e.iacProvider.LoadIacDir(e.dirPath)
 	}
 	if err != nil {
 		return results, err

pkg/runtime/validate.go

@@ -44,25 +44,8 @@ func (e *Executor) ValidateInputs() error {
 		zap.S().Errorf("no IaC path specified; use '-f' for file or '-d' for directory")
 		return errEmptyIacPath
 	}
-	if e.filePath != "" && e.dirPath != "" {
-		zap.S().Errorf("cannot accept both '-f %s' and '-d %s' options together", e.filePath, e.dirPath)
-		return errIncorrectIacPath
-	}
-
-	if e.dirPath != "" {
-		// if directory, check if directory exists
-		e.dirPath, err = utils.GetAbsPath(e.dirPath)
-		if err != nil {
-			return err
-		}
-
-		if _, err := os.Stat(e.dirPath); err != nil {
-			zap.S().Errorf("directory '%s' does not exist", e.dirPath)
-			return errDirNotExists
-		}
-		zap.S().Debugf("directory '%s' exists", e.dirPath)
-	} else {
 
+	if e.filePath != "" {
 		// if file path, check if file exists
 		e.filePath, err = utils.GetAbsPath(e.filePath)
 		if err != nil {
@@ -74,6 +57,18 @@ func (e *Executor) ValidateInputs() error {
 			return errFileNotExists
 		}
 		zap.S().Debugf("file '%s' exists", e.filePath)
+	} else {
+		// if directory, check if directory exists
+		e.dirPath, err = utils.GetAbsPath(e.dirPath)
+		if err != nil {
+			return err
+		}
+
+		if _, err := os.Stat(e.dirPath); err != nil {
+			zap.S().Errorf("directory '%s' does not exist", e.dirPath)
+			return errDirNotExists
+		}
+		zap.S().Debugf("directory '%s' exists", e.dirPath)
 	}
 
 	// check if Iac type is supported