github.com/hydgladiator/helm@v3.0.0-beta.3+incompatible/cmd/helm/create.go (about) 1 /* 2 Copyright The Helm Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package main 18 19 import ( 20 "fmt" 21 "io" 22 "path/filepath" 23 24 "github.com/spf13/cobra" 25 26 "helm.sh/helm/cmd/helm/require" 27 "helm.sh/helm/pkg/chart" 28 "helm.sh/helm/pkg/chartutil" 29 "helm.sh/helm/pkg/helmpath" 30 ) 31 32 const createDesc = ` 33 This command creates a chart directory along with the common files and 34 directories used in a chart. 35 36 For example, 'helm create foo' will create a directory structure that looks 37 something like this: 38 39 foo/ 40 ├── .helmignore # Contains patterns to ignore when packaging Helm charts. 41 ├── Chart.yaml # Information about your chart 42 ├── values.yaml # The default values for your templates 43 ├── charts/ # Charts that this chart depends on 44 └── templates/ # The template files 45 46 'helm create' takes a path for an argument. If directories in the given path 47 do not exist, Helm will attempt to create them as it goes. If the given 48 destination exists and there are files in that directory, conflicting files 49 will be overwritten, but other files will be left alone. 50 ` 51 52 type createOptions struct { 53 starter string // --starter 54 name string 55 starterDir string 56 } 57 58 func newCreateCmd(out io.Writer) *cobra.Command { 59 o := &createOptions{} 60 61 cmd := &cobra.Command{ 62 Use: "create NAME", 63 Short: "create a new chart with the given name", 64 Long: createDesc, 65 Args: require.ExactArgs(1), 66 RunE: func(cmd *cobra.Command, args []string) error { 67 o.name = args[0] 68 o.starterDir = helmpath.DataPath("starters") 69 return o.run(out) 70 }, 71 } 72 73 cmd.Flags().StringVarP(&o.starter, "starter", "p", "", "The name or absolute path to Helm starter scaffold") 74 return cmd 75 } 76 77 func (o *createOptions) run(out io.Writer) error { 78 fmt.Fprintf(out, "Creating %s\n", o.name) 79 80 chartname := filepath.Base(o.name) 81 cfile := &chart.Metadata{ 82 Name: chartname, 83 Description: "A Helm chart for Kubernetes", 84 Type: "application", 85 Version: "0.1.0", 86 AppVersion: "0.1.0", 87 APIVersion: chart.APIVersionV2, 88 } 89 90 if o.starter != "" { 91 // Create from the starter 92 lstarter := filepath.Join(o.starterDir, o.starter) 93 // If path is absolute, we dont want to prefix it with helm starters folder 94 if filepath.IsAbs(o.starter) { 95 lstarter = o.starter 96 } 97 return chartutil.CreateFrom(cfile, filepath.Dir(o.name), lstarter) 98 } 99 100 _, err := chartutil.Create(chartname, filepath.Dir(o.name)) 101 return err 102 }