github.com/canthefason/helm@v2.2.1-0.20170221172616-16b043b8d505+incompatible/cmd/helm/dependency_build.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 main
    17  
    18  import (
    19  	"io"
    20  
    21  	"github.com/spf13/cobra"
    22  
    23  	"k8s.io/helm/cmd/helm/helmpath"
    24  	"k8s.io/helm/pkg/downloader"
    25  )
    26  
    27  const dependencyBuildDesc = `
    28  Build out the charts/ directory from the requirements.lock file.
    29  
    30  Build is used to reconstruct a chart's dependencies to the state specified in
    31  the lock file. This will not re-negotiate dependencies, as 'helm dependency update'
    32  does.
    33  
    34  If no lock file is found, 'helm dependency build' will mirror the behavior
    35  of 'helm dependency update'.
    36  `
    37  
    38  type dependencyBuildCmd struct {
    39  	out       io.Writer
    40  	chartpath string
    41  	verify    bool
    42  	keyring   string
    43  	helmhome  helmpath.Home
    44  }
    45  
    46  func newDependencyBuildCmd(out io.Writer) *cobra.Command {
    47  	dbc := &dependencyBuildCmd{
    48  		out: out,
    49  	}
    50  
    51  	cmd := &cobra.Command{
    52  		Use:   "build [flags] CHART",
    53  		Short: "rebuild the charts/ directory based on the requirements.lock file",
    54  		Long:  dependencyBuildDesc,
    55  		RunE: func(cmd *cobra.Command, args []string) error {
    56  			dbc.helmhome = helmpath.Home(homePath())
    57  			dbc.chartpath = "."
    58  
    59  			if len(args) > 0 {
    60  				dbc.chartpath = args[0]
    61  			}
    62  			return dbc.run()
    63  		},
    64  	}
    65  
    66  	f := cmd.Flags()
    67  	f.BoolVar(&dbc.verify, "verify", false, "verify the packages against signatures")
    68  	f.StringVar(&dbc.keyring, "keyring", defaultKeyring(), "keyring containing public keys")
    69  
    70  	return cmd
    71  }
    72  
    73  func (d *dependencyBuildCmd) run() error {
    74  	man := &downloader.Manager{
    75  		Out:       d.out,
    76  		ChartPath: d.chartpath,
    77  		HelmHome:  d.helmhome,
    78  		Keyring:   d.keyring,
    79  	}
    80  	if d.verify {
    81  		man.Verify = downloader.VerifyIfPossible
    82  	}
    83  
    84  	return man.Build()
    85  }