1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/github.com/hashicorp/vault/helper/hclutil/hcl.go b/vendor/github.com/hashicorp/vault/helper/hclutil/hcl.go
new file mode 100644
index 0000000..0b12036
--- /dev/null
+++ b/vendor/github.com/hashicorp/vault/helper/hclutil/hcl.go
@@ -0,0 +1,36 @@
+package hclutil
+
+import (
+	"fmt"
+
+	multierror "github.com/hashicorp/go-multierror"
+	"github.com/hashicorp/hcl/hcl/ast"
+)
+
+// CheckHCLKeys checks whether the keys in the AST list contains any of the valid keys provided.
+func CheckHCLKeys(node ast.Node, valid []string) error {
+	var list *ast.ObjectList
+	switch n := node.(type) {
+	case *ast.ObjectList:
+		list = n
+	case *ast.ObjectType:
+		list = n.List
+	default:
+		return fmt.Errorf("cannot check HCL keys of type %T", n)
+	}
+
+	validMap := make(map[string]struct{}, len(valid))
+	for _, v := range valid {
+		validMap[v] = struct{}{}
+	}
+
+	var result error
+	for _, item := range list.Items {
+		key := item.Keys[0].Token.Value().(string)
+		if _, ok := validMap[key]; !ok {
+			result = multierror.Append(result, fmt.Errorf("invalid key %q on line %d", key, item.Assign.Line))
+		}
+	}
+
+	return result
+}