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restic/cmd/restic/cmd_generate.go
Jason Cox 2447f3f110 Update usage strings to put flags before args
The standard UNIX-style ordering of command-line arguments places
optional flags before other positional arguments. All of restic's
commands support this ordering, but some of the usage strings showed the
flags after the positional arguments (which restic also parses just
fine). This change updates the doc strings to reflect the standard
ordering.

Because the `restic help` command comes directly from Cobra, there does
not appear to be a way to update the argument ordering in its usage
string, so it maintains the non-standard ordering (positional arguments
before optional flags).
2020-08-28 02:16:22 +00:00

100 lines
2.3 KiB
Go

package main
import (
"time"
"github.com/restic/restic/internal/errors"
"github.com/spf13/cobra"
"github.com/spf13/cobra/doc"
)
var cmdGenerate = &cobra.Command{
Use: "generate [flags]",
Short: "Generate manual pages and auto-completion files (bash, zsh)",
Long: `
The "generate" command writes automatically generated files (like the man pages
and the auto-completion files for bash and zsh).
EXIT STATUS
===========
Exit status is 0 if the command was successful, and non-zero if there was any error.
`,
DisableAutoGenTag: true,
RunE: runGenerate,
}
type generateOptions struct {
ManDir string
BashCompletionFile string
ZSHCompletionFile string
}
var genOpts generateOptions
func init() {
cmdRoot.AddCommand(cmdGenerate)
fs := cmdGenerate.Flags()
fs.StringVar(&genOpts.ManDir, "man", "", "write man pages to `directory`")
fs.StringVar(&genOpts.BashCompletionFile, "bash-completion", "", "write bash completion `file`")
fs.StringVar(&genOpts.ZSHCompletionFile, "zsh-completion", "", "write zsh completion `file`")
}
func writeManpages(dir string) error {
// use a fixed date for the man pages so that generating them is deterministic
date, err := time.Parse("Jan 2006", "Jan 2017")
if err != nil {
return err
}
header := &doc.GenManHeader{
Title: "restic backup",
Section: "1",
Source: "generated by `restic generate`",
Date: &date,
}
Verbosef("writing man pages to directory %v\n", dir)
return doc.GenManTree(cmdRoot, header, dir)
}
func writeBashCompletion(file string) error {
Verbosef("writing bash completion file to %v\n", file)
return cmdRoot.GenBashCompletionFile(file)
}
func writeZSHCompletion(file string) error {
Verbosef("writing zsh completion file to %v\n", file)
return cmdRoot.GenZshCompletionFile(file)
}
func runGenerate(cmd *cobra.Command, args []string) error {
if genOpts.ManDir != "" {
err := writeManpages(genOpts.ManDir)
if err != nil {
return err
}
}
if genOpts.BashCompletionFile != "" {
err := writeBashCompletion(genOpts.BashCompletionFile)
if err != nil {
return err
}
}
if genOpts.ZSHCompletionFile != "" {
err := writeZSHCompletion(genOpts.ZSHCompletionFile)
if err != nil {
return err
}
}
var empty generateOptions
if genOpts == empty {
return errors.Fatal("nothing to do, please specify at least one output file/dir")
}
return nil
}