internal/json-to-l10n/main.go

package main

import (
	"code.as/writeas/internal"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"os"
	"strings"
)

func main() {
	if len(os.Args) < 3 {
		internal.ErrQuit("usage: json-to-l10n filename lang")
	}

	file := os.Args[1]
	lang := os.Args[2]

	phrases := parseJSON(file)
	out := `package l10n

var phrases` + strings.ToUpper(lang) + ` = map[string]string{
`
	for t, p := range phrases {
		out += fmt.Sprintf("\t\"%s\": \"%s\",\n", t, p)
	}
	out += "}"

	fmt.Println(out)
}

func parseJSON(filename string) map[string]string {
	raw, err := ioutil.ReadFile(filename)
	if err != nil {
		internal.ErrQuit("unable to read file: %v", err)
	}

	r := map[string]string{}
	var c map[string]map[string]string
	json.Unmarshal(raw, &c)
	for _, obj := range c {
		for k, v := range obj {
			r[k] = v
		}
	}
	return r
}