open-vault/helper/hclutil/hcl.go

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2018-06-12 16:38:08 +00:00
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
}