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ec440d446d
This commit replaces usage of github.com/ghodss/yaml with it's forked version maintained by SIG community. The replaced library has low-to-none support activity unlike the latter. We believe the new Helm branch could benefit from using the community-supported version on a long-term run as yaml parser is a key component of Helm chart rendering engine. This commit locks sigs.k8s.io/yaml dependency version on 1.1.0 which is backwards compatible with ghodss/yaml 1.0.0. This change also resolves the outdated dependency version lock for ghodss/yaml (currently 1.0.0) and makes it possible to port changes from https://github.com/helm/helm/pull/6010 to dev-v3. Signed-off-by: Oleg Sidorov <oleg.sidorov@booking.com>
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package chartutil
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import (
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"bytes"
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"fmt"
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"strings"
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"github.com/pkg/errors"
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"github.com/xeipuuv/gojsonschema"
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"sigs.k8s.io/yaml"
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"helm.sh/helm/pkg/chart"
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)
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// ValidateAgainstSchema checks that values does not violate the structure laid out in schema
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func ValidateAgainstSchema(chrt *chart.Chart, values map[string]interface{}) error {
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var sb strings.Builder
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if chrt.Schema != nil {
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err := ValidateAgainstSingleSchema(values, chrt.Schema)
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if err != nil {
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sb.WriteString(fmt.Sprintf("%s:\n", chrt.Name()))
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sb.WriteString(err.Error())
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}
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}
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// For each dependency, recurively call this function with the coalesced values
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for _, subchrt := range chrt.Dependencies() {
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subchrtValues := values[subchrt.Name()].(map[string]interface{})
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if err := ValidateAgainstSchema(subchrt, subchrtValues); err != nil {
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sb.WriteString(err.Error())
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}
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}
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if sb.Len() > 0 {
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return errors.New(sb.String())
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}
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return nil
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}
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// ValidateAgainstSingleSchema checks that values does not violate the structure laid out in this schema
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func ValidateAgainstSingleSchema(values Values, schemaJSON []byte) error {
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valuesData, err := yaml.Marshal(values)
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if err != nil {
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return err
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}
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valuesJSON, err := yaml.YAMLToJSON(valuesData)
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if err != nil {
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return err
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}
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if bytes.Equal(valuesJSON, []byte("null")) {
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valuesJSON = []byte("{}")
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}
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schemaLoader := gojsonschema.NewBytesLoader(schemaJSON)
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valuesLoader := gojsonschema.NewBytesLoader(valuesJSON)
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result, err := gojsonschema.Validate(schemaLoader, valuesLoader)
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if err != nil {
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return err
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}
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if !result.Valid() {
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var sb strings.Builder
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for _, desc := range result.Errors() {
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sb.WriteString(fmt.Sprintf("- %s\n", desc))
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}
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return errors.New(sb.String())
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}
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return nil
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}
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