-
Notifications
You must be signed in to change notification settings - Fork 9
/
fieldvalidator.go
51 lines (42 loc) · 1.28 KB
/
fieldvalidator.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package cuefrontend
import (
"fmt"
"math"
"github.com/agext/levenshtein"
"k8s.io/utils/strings/slices"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/internal/frontend/fncue"
"namespacelabs.dev/foundation/std/pkggraph"
)
func ValidateNoExtraFields(loc pkggraph.Location, messagePrefix string, v *fncue.CueV, allowedFields []string) error {
it, err := v.Val.Fields()
if err != nil {
return err
}
for it.Next() {
fieldName := it.Label()
if !slices.Contains(allowedFields, fieldName) {
return fnerrors.NewWithLocation(loc, "%s field %q is not supported. %sPrefix it with \"_\" if it is intentional.",
messagePrefix, fieldName, didYouMean(fieldName, allowedFields))
}
}
return nil
}
func didYouMean(given string, allowed []string) string {
suggestion := ""
lowest := math.MaxInt
for _, word := range allowed {
dist := levenshtein.Distance(given, word, nil)
if dist < 3 && dist < lowest {
suggestion = word
lowest = dist
}
}
if suggestion != "" {
return fmt.Sprintf("\n\n Did you mean %q?\n\n", suggestion)
}
return suggestion
}