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114 lines
3.4 KiB
114 lines
3.4 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 main
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import (
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"fmt"
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"io"
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"path/filepath"
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"github.com/spf13/cobra"
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"helm.sh/helm/v3/cmd/helm/require"
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"helm.sh/helm/v3/pkg/chart"
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"helm.sh/helm/v3/pkg/chartutil"
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"helm.sh/helm/v3/pkg/helmpath"
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)
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const createDesc = `
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This command creates a chart directory along with the common files and
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directories used in a chart.
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For example, 'helm create foo' will create a directory structure that looks
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something like this:
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foo/
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├── .helmignore # Contains patterns to ignore when packaging Helm charts.
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├── Chart.yaml # Information about your chart
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├── values.yaml # The default values for your templates
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├── charts/ # Charts that this chart depends on
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└── templates/ # The template files
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└── tests/ # The test files
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'helm create' takes a path for an argument. If directories in the given path
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do not exist, Helm will attempt to create them as it goes. If the given
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destination exists and there are files in that directory, conflicting files
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will be overwritten, but other files will be left alone.
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`
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type createOptions struct {
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starter string // --starter
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name string
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starterDir string
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}
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func newCreateCmd(out io.Writer) *cobra.Command {
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o := &createOptions{}
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cmd := &cobra.Command{
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Use: "create NAME",
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Short: "create a new chart with the given name",
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Long: createDesc,
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Args: require.ExactArgs(1),
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ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
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if len(args) == 0 {
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// Allow file completion when completing the argument for the name
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// which could be a path
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return nil, cobra.ShellCompDirectiveDefault
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}
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// No more completions, so disable file completion
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return nil, cobra.ShellCompDirectiveNoFileComp
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},
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RunE: func(cmd *cobra.Command, args []string) error {
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o.name = args[0]
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o.starterDir = helmpath.DataPath("starters")
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return o.run(out)
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},
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}
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cmd.Flags().StringVarP(&o.starter, "starter", "p", "", "the name or absolute path to Helm starter scaffold")
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return cmd
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}
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func (o *createOptions) run(out io.Writer) error {
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fmt.Fprintf(out, "Creating %s\n", o.name)
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chartname := filepath.Base(o.name)
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cfile := &chart.Metadata{
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Name: chartname,
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Description: "A Helm chart for Kubernetes",
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Type: "application",
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Version: "0.1.0",
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AppVersion: "0.1.0",
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APIVersion: chart.APIVersionV2,
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}
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if o.starter != "" {
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// Create from the starter
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lstarter := filepath.Join(o.starterDir, o.starter)
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// If path is absolute, we don't want to prefix it with helm starters folder
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if filepath.IsAbs(o.starter) {
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lstarter = o.starter
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}
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return chartutil.CreateFrom(cfile, filepath.Dir(o.name), lstarter)
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}
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chartutil.Stderr = out
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_, err := chartutil.Create(chartname, filepath.Dir(o.name))
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return err
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}
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