mirror of https://github.com/helm/helm.git
126 lines
2.9 KiB
Go
126 lines
2.9 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 repo // import "helm.sh/helm/v3/pkg/repo"
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import (
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"os"
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"path/filepath"
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"time"
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"github.com/pkg/errors"
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"sigs.k8s.io/yaml"
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)
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// File represents the repositories.yaml file
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type File struct {
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APIVersion string `json:"apiVersion"`
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Generated time.Time `json:"generated"`
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Repositories []*Entry `json:"repositories"`
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}
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// NewFile generates an empty repositories file.
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//
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// Generated and APIVersion are automatically set.
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func NewFile() *File {
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return &File{
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APIVersion: APIVersionV1,
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Generated: time.Now(),
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Repositories: []*Entry{},
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}
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}
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// LoadFile takes a file at the given path and returns a File object
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func LoadFile(path string) (*File, error) {
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r := new(File)
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b, err := os.ReadFile(path)
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if err != nil {
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return r, errors.Wrapf(err, "couldn't load repositories file (%s)", path)
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}
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err = yaml.Unmarshal(b, r)
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return r, err
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}
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// Add adds one or more repo entries to a repo file.
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func (r *File) Add(re ...*Entry) {
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r.Repositories = append(r.Repositories, re...)
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}
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// Update attempts to replace one or more repo entries in a repo file. If an
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// entry with the same name doesn't exist in the repo file it will add it.
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func (r *File) Update(re ...*Entry) {
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for _, target := range re {
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r.update(target)
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}
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}
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func (r *File) update(e *Entry) {
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for j, repo := range r.Repositories {
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if repo.Name == e.Name {
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r.Repositories[j] = e
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return
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}
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}
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r.Add(e)
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}
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// Has returns true if the given name is already a repository name.
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func (r *File) Has(name string) bool {
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entry := r.Get(name)
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return entry != nil
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}
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// Get returns an entry with the given name if it exists, otherwise returns nil
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func (r *File) Get(name string) *Entry {
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for _, entry := range r.Repositories {
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if entry.Name == name {
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return entry
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}
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}
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return nil
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}
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// Remove removes the entry from the list of repositories.
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func (r *File) Remove(name string) bool {
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cp := []*Entry{}
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found := false
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for _, rf := range r.Repositories {
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if rf == nil {
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continue
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}
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if rf.Name == name {
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found = true
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continue
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}
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cp = append(cp, rf)
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}
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r.Repositories = cp
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return found
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}
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// WriteFile writes a repositories file to the given path.
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func (r *File) WriteFile(path string, perm os.FileMode) error {
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data, err := yaml.Marshal(r)
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if err != nil {
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return err
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}
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if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
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return err
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}
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return os.WriteFile(path, data, perm)
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}
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