96 lines
2.5 KiB
Go
96 lines
2.5 KiB
Go
/*
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Copyright 2018 The Kubernetes 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 commands
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import (
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"errors"
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"fmt"
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"path"
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"strings"
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"github.com/ghodss/yaml"
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"k8s.io/kubectl/pkg/kustomize/constants"
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interror "k8s.io/kubectl/pkg/kustomize/internal/error"
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"k8s.io/kubectl/pkg/kustomize/types"
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"k8s.io/kubectl/pkg/kustomize/util/fs"
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)
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type manifestFile struct {
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mPath string
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fsys fs.FileSystem
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}
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func newManifestFile(mPath string, fsys fs.FileSystem) (*manifestFile, error) {
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mf := &manifestFile{mPath: mPath, fsys: fsys}
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err := mf.validate()
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if err != nil {
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return nil, err
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}
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return mf, nil
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}
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func (mf *manifestFile) validate() error {
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f, err := mf.fsys.Stat(mf.mPath)
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if err != nil {
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errorMsg := fmt.Sprintf("Missing kustomize config file '%s'.\n", mf.mPath)
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merr := interror.ManifestError{ManifestFilepath: mf.mPath, ErrorMsg: errorMsg}
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return merr
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}
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if f.IsDir() {
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mf.mPath = path.Join(mf.mPath, constants.KustomizeFileName)
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_, err = mf.fsys.Stat(mf.mPath)
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if err != nil {
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errorMsg := fmt.Sprintf("Missing kustomize config file '%s'.\n", mf.mPath)
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merr := interror.ManifestError{ManifestFilepath: mf.mPath, ErrorMsg: errorMsg}
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return merr
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}
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} else {
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if !strings.HasSuffix(mf.mPath, constants.KustomizeFileName) {
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errorMsg := fmt.Sprintf("Kustomize config file path (%s) should have %s suffix\n", mf.mPath, constants.KustomizeSuffix)
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merr := interror.ManifestError{ManifestFilepath: mf.mPath, ErrorMsg: errorMsg}
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return merr
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}
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}
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return nil
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}
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func (mf *manifestFile) read() (*types.Manifest, error) {
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bytes, err := mf.fsys.ReadFile(mf.mPath)
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if err != nil {
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return nil, err
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}
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var manifest types.Manifest
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err = yaml.Unmarshal(bytes, &manifest)
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if err != nil {
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return nil, err
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}
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return &manifest, err
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}
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func (mf *manifestFile) write(manifest *types.Manifest) error {
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if manifest == nil {
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return errors.New("util: kustomize config file arg is nil.")
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}
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bytes, err := yaml.Marshal(manifest)
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if err != nil {
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return err
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}
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return mf.fsys.WriteFile(mf.mPath, bytes)
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}
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