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kustomize.go
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kustomize.go
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/*
Copyright 2021 Daisuke Taniwaki.
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 utils
import (
"fmt"
"io/fs"
"os"
"path/filepath"
"regexp"
"github.com/pkg/errors"
)
type ListKustomizeDirsOpts struct {
IncludeRegexp *regexp.Regexp
ExcludeRegexp *regexp.Regexp
}
func ListKustomizeDirs(dirPath string, opts ListKustomizeDirsOpts) ([]string, error) {
targetFiles := make([]string, 0)
err := filepath.WalkDir(dirPath, func(path string, d fs.DirEntry, err error) error {
if err != nil {
return errors.WithStack(err)
}
if !d.IsDir() {
return nil
}
if !KustomizationExists(path) {
return nil
}
included := true
if opts.IncludeRegexp != nil {
m := opts.IncludeRegexp.Match([]byte(path))
if !m {
included = false
}
}
if included {
if opts.ExcludeRegexp != nil {
m := opts.ExcludeRegexp.Match([]byte(path))
if m {
included = false
}
}
}
if included {
relPath, err := filepath.Rel(dirPath, path)
if err != nil {
return errors.WithStack(err)
}
targetFiles = append(targetFiles, relPath)
}
return nil
})
if err != nil {
return nil, err
}
return targetFiles, nil
}
func KustomizationExists(path string) bool {
return Exists(filepath.Join(path, "kustomization.yaml")) || Exists(filepath.Join(path, "kustomization.yml"))
}
func MakeKustomizeDir(dirPath string) error {
err := os.MkdirAll(dirPath, 0700)
if err != nil {
return errors.WithStack(err)
}
kustomizationFilePath := filepath.Join(dirPath, "kustomization.yaml")
if Exists(kustomizationFilePath) {
return fmt.Errorf("File already exists: %s", kustomizationFilePath)
}
f, err := os.Create(kustomizationFilePath)
if err != nil {
return errors.WithStack(err)
}
defer f.Close()
return nil
}