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updatefile.go
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updatefile.go
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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sync
import (
"io/ioutil"
"github.com/GoogleContainerTools/kpt/internal/util/update"
"github.com/GoogleContainerTools/kpt/pkg/kptfile"
"gopkg.in/yaml.v3"
"sigs.k8s.io/kustomize/kyaml/errors"
)
func SetDependency(dependency kptfile.Dependency) error {
b, err := ioutil.ReadFile(kptfile.KptFileName)
if err != nil {
return errors.WrapPrefixf(err, "failed to read Kptfile -- create one with `kpt pkg init .`")
}
k := &kptfile.KptFile{}
if err := yaml.Unmarshal(b, k); err != nil {
return errors.WrapPrefixf(err, "failed to unmarshal Kptfile")
}
// validate dependencies are well formed
found := false
for i := range k.Dependencies {
d := &k.Dependencies[i]
if d.Name != dependency.Name {
continue
}
// update the existing dependency
if dependency.Strategy != "" {
d.Strategy = dependency.Strategy
}
d.Git.Ref = dependency.Git.Ref
found = true
break
}
// add the dependency
if !found {
if dependency.Strategy == "" {
dependency.Strategy = string(update.FastForward)
}
k.Dependencies = append(k.Dependencies, dependency)
}
b, err = yaml.Marshal(k)
if err != nil {
return err
}
return ioutil.WriteFile(kptfile.KptFileName, b, 0600)
}