github.com/darkowlzz/helm@v2.5.1-0.20171213183701-6707fe0468d4+incompatible/pkg/plugin/installer/local_installer.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors All rights reserved.
     3  Licensed under the Apache License, Version 2.0 (the "License");
     4  you may not use this file except in compliance with the License.
     5  You may obtain a copy of the License at
     6  
     7  http://www.apache.org/licenses/LICENSE-2.0
     8  
     9  Unless required by applicable law or agreed to in writing, software
    10  distributed under the License is distributed on an "AS IS" BASIS,
    11  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  See the License for the specific language governing permissions and
    13  limitations under the License.
    14  */
    15  
    16  package installer // import "k8s.io/helm/pkg/plugin/installer"
    17  
    18  import (
    19  	"path/filepath"
    20  
    21  	"k8s.io/helm/pkg/helm/helmpath"
    22  )
    23  
    24  // LocalInstaller installs plugins from the filesystem.
    25  type LocalInstaller struct {
    26  	base
    27  }
    28  
    29  // NewLocalInstaller creates a new LocalInstaller.
    30  func NewLocalInstaller(source string, home helmpath.Home) (*LocalInstaller, error) {
    31  	i := &LocalInstaller{
    32  		base: newBase(source, home),
    33  	}
    34  	return i, nil
    35  }
    36  
    37  // Install creates a symlink to the plugin directory in $HELM_HOME.
    38  //
    39  // Implements Installer.
    40  func (i *LocalInstaller) Install() error {
    41  	if !isPlugin(i.Source) {
    42  		return ErrMissingMetadata
    43  	}
    44  	src, err := filepath.Abs(i.Source)
    45  	if err != nil {
    46  		return err
    47  	}
    48  	return i.link(src)
    49  }
    50  
    51  // Update updates a local repository
    52  func (i *LocalInstaller) Update() error {
    53  	debug("local repository is auto-updated")
    54  	return nil
    55  }