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docs.go
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docs.go
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/*
Copyright 2016 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"fmt"
"io"
"path/filepath"
"github.com/spf13/cobra"
"github.com/spf13/cobra/doc"
)
const docsDesc = `
Generate documentation files for Helm.
This command can generate documentation for Helm in the following formats:
- Markdown
- Man pages
It can also generate bash autocompletions.
$ helm docs markdown -dir mydocs/
`
type docsCmd struct {
out io.Writer
dest string
docTypeString string
topCmd *cobra.Command
}
func newDocsCmd(out io.Writer) *cobra.Command {
dc := &docsCmd{out: out}
cmd := &cobra.Command{
Use: "docs",
Short: "Generate documentation as markdown or man pages",
Long: docsDesc,
Hidden: true,
RunE: func(cmd *cobra.Command, args []string) error {
dc.topCmd = cmd.Root()
return dc.run()
},
}
f := cmd.Flags()
f.StringVar(&dc.dest, "dir", "./", "directory to which documentation is written")
f.StringVar(&dc.docTypeString, "type", "markdown", "the type of documentation to generate (markdown, man, bash)")
return cmd
}
func (d *docsCmd) run() error {
switch d.docTypeString {
case "markdown", "mdown", "md":
return doc.GenMarkdownTree(d.topCmd, d.dest)
case "man":
manHdr := &doc.GenManHeader{Title: "HELM", Section: "1"}
return doc.GenManTree(d.topCmd, manHdr, d.dest)
case "bash":
return d.topCmd.GenBashCompletionFile(filepath.Join(d.dest, "completions.bash"))
default:
return fmt.Errorf("unknown doc type %q. Try 'markdown' or 'man'", d.docTypeString)
}
}