/usr/share/gocode/src/github.com/spf13/cobra/doc/man_docs.go is in golang-github-dnephin-cobra-dev 1.5+git20161103.0.a3c0924-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 | // Copyright 2015 Red Hat Inc. 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 doc
import (
"bytes"
"fmt"
"io"
"os"
"path/filepath"
"sort"
"strings"
"time"
mangen "github.com/cpuguy83/go-md2man/md2man"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
// GenManTree will generate a man page for this command and all descendants
// in the directory given. The header may be nil. This function may not work
// correctly if your command names have - in them. If you have `cmd` with two
// subcmds, `sub` and `sub-third`. And `sub` has a subcommand called `third`
// it is undefined which help output will be in the file `cmd-sub-third.1`.
func GenManTree(cmd *cobra.Command, header *GenManHeader, dir string) error {
return GenManTreeFromOpts(cmd, GenManTreeOptions{
Header: header,
Path: dir,
CommandSeparator: "_",
})
}
// GenManTreeFromOpts generates a man page for the command and all descendants.
// The pages are written to the opts.Path directory.
func GenManTreeFromOpts(cmd *cobra.Command, opts GenManTreeOptions) error {
header := opts.Header
if header == nil {
header = &GenManHeader{}
}
for _, c := range cmd.Commands() {
if !c.IsAvailableCommand() || c.IsHelpCommand() {
continue
}
if err := GenManTreeFromOpts(c, opts); err != nil {
return err
}
}
section := "1"
if header.Section != "" {
section = header.Section
}
separator := "_"
if opts.CommandSeparator != "" {
separator = opts.CommandSeparator
}
basename := strings.Replace(cmd.CommandPath(), " ", separator, -1)
filename := filepath.Join(opts.Path, basename + "." + section)
f, err := os.Create(filename)
if err != nil {
return err
}
defer f.Close()
headerCopy := *header
return GenMan(cmd, &headerCopy, f)
}
type GenManTreeOptions struct {
Header *GenManHeader
Path string
CommandSeparator string
}
// GenManHeader is a lot like the .TH header at the start of man pages. These
// include the title, section, date, source, and manual. We will use the
// current time if Date if unset and will use "Auto generated by spf13/cobra"
// if the Source is unset.
type GenManHeader struct {
Title string
Section string
Date *time.Time
date string
Source string
Manual string
}
// GenMan will generate a man page for the given command and write it to
// w. The header argument may be nil, however obviously w may not.
func GenMan(cmd *cobra.Command, header *GenManHeader, w io.Writer) error {
if header == nil {
header = &GenManHeader{}
}
fillHeader(header, cmd.CommandPath())
b := genMan(cmd, header)
_, err := w.Write(mangen.Render(b))
return err
}
func fillHeader(header *GenManHeader, name string) {
if header.Title == "" {
header.Title = strings.ToUpper(strings.Replace(name, " ", "\\-", -1))
}
if header.Section == "" {
header.Section = "1"
}
if header.Date == nil {
now := time.Now()
header.Date = &now
}
header.date = (*header.Date).Format("Jan 2006")
if header.Source == "" {
header.Source = "Auto generated by spf13/cobra"
}
}
func manPreamble(out io.Writer, header *GenManHeader, cmd *cobra.Command, dashedName string) {
description := cmd.Long
if len(description) == 0 {
description = cmd.Short
}
fmt.Fprintf(out, `%% %s(%s)%s
%% %s
%% %s
# NAME
`, header.Title, header.Section, header.date, header.Source, header.Manual)
fmt.Fprintf(out, "%s \\- %s\n\n", dashedName, cmd.Short)
fmt.Fprintf(out, "# SYNOPSIS\n")
fmt.Fprintf(out, "**%s**\n\n", cmd.UseLine())
fmt.Fprintf(out, "# DESCRIPTION\n")
fmt.Fprintf(out, "%s\n\n", description)
}
func manPrintFlags(out io.Writer, flags *pflag.FlagSet) {
flags.VisitAll(func(flag *pflag.Flag) {
if len(flag.Deprecated) > 0 || flag.Hidden {
return
}
format := ""
if len(flag.Shorthand) > 0 && len(flag.ShorthandDeprecated) == 0 {
format = fmt.Sprintf("**-%s**, **--%s**", flag.Shorthand, flag.Name)
} else {
format = fmt.Sprintf("**--%s**", flag.Name)
}
if len(flag.NoOptDefVal) > 0 {
format = format + "["
}
if flag.Value.Type() == "string" {
// put quotes on the value
format = format + "=%q"
} else {
format = format + "=%s"
}
if len(flag.NoOptDefVal) > 0 {
format = format + "]"
}
format = format + "\n\t%s\n\n"
fmt.Fprintf(out, format, flag.DefValue, flag.Usage)
})
}
func manPrintOptions(out io.Writer, command *cobra.Command) {
flags := command.NonInheritedFlags()
if flags.HasFlags() {
fmt.Fprintf(out, "# OPTIONS\n")
manPrintFlags(out, flags)
fmt.Fprintf(out, "\n")
}
flags = command.InheritedFlags()
if flags.HasFlags() {
fmt.Fprintf(out, "# OPTIONS INHERITED FROM PARENT COMMANDS\n")
manPrintFlags(out, flags)
fmt.Fprintf(out, "\n")
}
}
func genMan(cmd *cobra.Command, header *GenManHeader) []byte {
// something like `rootcmd-subcmd1-subcmd2`
dashCommandName := strings.Replace(cmd.CommandPath(), " ", "-", -1)
buf := new(bytes.Buffer)
manPreamble(buf, header, cmd, dashCommandName)
manPrintOptions(buf, cmd)
if len(cmd.Example) > 0 {
fmt.Fprintf(buf, "# EXAMPLE\n")
fmt.Fprintf(buf, "```\n%s\n```\n", cmd.Example)
}
if hasSeeAlso(cmd) {
fmt.Fprintf(buf, "# SEE ALSO\n")
seealsos := make([]string, 0)
if cmd.HasParent() {
parentPath := cmd.Parent().CommandPath()
dashParentPath := strings.Replace(parentPath, " ", "-", -1)
seealso := fmt.Sprintf("**%s(%s)**", dashParentPath, header.Section)
seealsos = append(seealsos, seealso)
cmd.VisitParents(func(c *cobra.Command) {
if c.DisableAutoGenTag {
cmd.DisableAutoGenTag = c.DisableAutoGenTag
}
})
}
children := cmd.Commands()
sort.Sort(byName(children))
for _, c := range children {
if !c.IsAvailableCommand() || c.IsHelpCommand() {
continue
}
seealso := fmt.Sprintf("**%s-%s(%s)**", dashCommandName, c.Name(), header.Section)
seealsos = append(seealsos, seealso)
}
fmt.Fprintf(buf, "%s\n", strings.Join(seealsos, ", "))
}
if !cmd.DisableAutoGenTag {
fmt.Fprintf(buf, "# HISTORY\n%s Auto generated by spf13/cobra\n", header.Date.Format("2-Jan-2006"))
}
return buf.Bytes()
}
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