68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
/*
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Copyright 2020 The Flux 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 util
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import (
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"crypto/sha1"
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"fmt"
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"helm.sh/helm/v3/pkg/chartutil"
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"helm.sh/helm/v3/pkg/release"
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)
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// MergeMaps merges map b into given map a and returns the result.
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// It allows overwrites of map values with flat values, and vice versa.
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// This is copied from https://github.com/helm/helm/blob/v3.3.0/pkg/cli/values/options.go#L88,
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// as the public chartutil.CoalesceTables function does not allow
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// overwriting maps with flat values.
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func MergeMaps(a, b map[string]interface{}) map[string]interface{} {
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out := make(map[string]interface{}, len(a))
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for k, v := range a {
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out[k] = v
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}
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for k, v := range b {
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if v, ok := v.(map[string]interface{}); ok {
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if bv, ok := out[k]; ok {
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if bv, ok := bv.(map[string]interface{}); ok {
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out[k] = MergeMaps(bv, v)
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continue
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}
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}
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}
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out[k] = v
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}
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return out
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}
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// ValuesChecksum calculates and returns the SHA1 checksum for the
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// given chartutil.Values.
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func ValuesChecksum(values chartutil.Values) string {
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var s string
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if len(values) != 0 {
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s, _ = values.YAML()
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}
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return fmt.Sprintf("%x", sha1.Sum([]byte(s)))
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}
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// ReleaseRevision returns the revision of the given release.Release.
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func ReleaseRevision(rel *release.Release) int {
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if rel == nil {
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return 0
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}
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return rel.Version
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}
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