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// Command goi18n manages message files used by the i18n package.
//
// go get -u github.com/nicksnyder/go-i18n/v2/goi18n
// goi18n -help
//
// Use `goi18n extract` to create a message file that contains the messages defined in your Go source files.
// # en.toml
// [PersonCats]
// description = "The number of cats a person has"
// one = "{{.Name}} has {{.Count}} cat."
// other = "{{.Name}} has {{.Count}} cats."
//
// Use `goi18n merge` to create message files for translation.
// # translate.es.toml
// [PersonCats]
// description = "The number of cats a person has"
// hash = "sha1-f937a0e05e19bfe6cd70937c980eaf1f9832f091"
// one = "{{.Name}} has {{.Count}} cat."
// other = "{{.Name}} has {{.Count}} cats."
//
// Use `goi18n merge` to merge translated message files with your existing message files.
// # active.es.toml
// [PersonCats]
// description = "The number of cats a person has"
// hash = "sha1-f937a0e05e19bfe6cd70937c980eaf1f9832f091"
// one = "{{.Name}} tiene {{.Count}} gato."
// other = "{{.Name}} tiene {{.Count}} gatos."
//
// Load the active messages into your bundle.
// bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
// bundle.MustLoadMessageFile("active.es.toml")
package main
import (
"flag"
"fmt"
"os"
"golang.org/x/text/language"
)
func mainUsage() {
fmt.Fprintf(os.Stderr, `goi18n (v2) is a tool for managing message translations.
Usage:
goi18n command [arguments]
The commands are:
merge merge message files
extract extract messages from Go files
Workflow:
Use 'goi18n extract' to create a message file that contains the messages defined in your Go source files.
# en.toml
[PersonCats]
description = "The number of cats a person has"
one = "{{.Name}} has {{.Count}} cat."
other = "{{.Name}} has {{.Count}} cats."
Use 'goi18n merge' to create message files for translation.
# translate.es.toml
[PersonCats]
description = "The number of cats a person has"
hash = "sha1-f937a0e05e19bfe6cd70937c980eaf1f9832f091"
one = "{{.Name}} has {{.Count}} cat."
other = "{{.Name}} has {{.Count}} cats."
Use 'goi18n merge' to merge translated message files with your existing message files.
# active.es.toml
[PersonCats]
description = "The number of cats a person has"
hash = "sha1-f937a0e05e19bfe6cd70937c980eaf1f9832f091"
one = "{{.Name}} tiene {{.Count}} gato."
other = "{{.Name}} tiene {{.Count}} gatos."
Load the active messages into your bundle.
bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
bundle.MustLoadMessageFile("active.es.toml")
`)
}
type command interface {
name() string
parse(arguments []string) error
execute() error
}
func main() {
os.Exit(testableMain(os.Args[1:]))
}
func testableMain(args []string) int {
flags := flag.NewFlagSet("goi18n", flag.ContinueOnError)
flags.Usage = mainUsage
if err := flags.Parse(args); err != nil {
if err == flag.ErrHelp {
return 2
}
return 1
}
if flags.NArg() == 0 {
mainUsage()
return 2
}
commands := []command{
&mergeCommand{},
&extractCommand{},
}
cmdName := flags.Arg(0)
for _, cmd := range commands {
if cmd.name() == cmdName {
if err := cmd.parse(flags.Args()[1:]); err != nil {
fmt.Fprintln(os.Stderr, err)
return 1
}
if err := cmd.execute(); err != nil {
fmt.Fprintln(os.Stderr, err)
return 1
}
return 0
}
}
fmt.Fprintf(os.Stderr, "goi18n: unknown subcommand %s\n", cmdName)
return 1
}
type languageTag language.Tag
func (lt languageTag) String() string {
return lt.Tag().String()
}
func (lt *languageTag) Set(value string) error {
t, err := language.Parse(value)
if err != nil {
return err
}
*lt = languageTag(t)
return nil
}
func (lt languageTag) Tag() language.Tag {
tag := language.Tag(lt)
if tag.IsRoot() {
return language.English
}
return tag
}
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