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69 lines
1.7 KiB
69 lines
1.7 KiB
/*
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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 installer // import "helm.sh/helm/v3/pkg/plugin/installer"
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import (
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"os"
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"path/filepath"
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"github.com/pkg/errors"
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)
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// ErrPluginNotAFolder indicates that the plugin path is not a folder.
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var ErrPluginNotAFolder = errors.New("expected plugin to be a folder")
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// LocalInstaller installs plugins from the filesystem.
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type LocalInstaller struct {
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base
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}
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// NewLocalInstaller creates a new LocalInstaller.
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func NewLocalInstaller(source string) (*LocalInstaller, error) {
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src, err := filepath.Abs(source)
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if err != nil {
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return nil, errors.Wrap(err, "unable to get absolute path to plugin")
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}
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i := &LocalInstaller{
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base: newBase(src),
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}
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return i, nil
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}
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// Install creates a symlink to the plugin directory.
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//
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// Implements Installer.
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func (i *LocalInstaller) Install() error {
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stat, err := os.Stat(i.Source)
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if err != nil {
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return err
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}
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if !stat.IsDir() {
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return ErrPluginNotAFolder
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}
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if !isPlugin(i.Source) {
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return ErrMissingMetadata
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}
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debug("symlinking %s to %s", i.Source, i.Path())
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return os.Symlink(i.Source, i.Path())
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}
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// Update updates a local repository
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func (i *LocalInstaller) Update() error {
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debug("local repository is auto-updated")
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return nil
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}
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