zenity/internal/osa/generator.go

// +build ignore

package main

import (
	"bufio"
	"io/ioutil"
	"log"
	"os"
	"path/filepath"
	"strings"
	"text/template"
)

func main() {
	dir := os.Args[1]

	files, err := ioutil.ReadDir(dir)
	if err != nil {
		log.Fatal(err)
	}

	var str strings.Builder

	for _, file := range files {
		name := file.Name()

		str.WriteString("\n" + `{{define "`)
		str.WriteString(strings.TrimSuffix(name, filepath.Ext(name)))
		str.WriteString(`"}}<script>`)

		func() {
			in, err := os.Open(filepath.Join(dir, name))
			if err != nil {
				log.Fatal(err)
			}
			defer in.Close()

			scanner := bufio.NewScanner(in)
			for scanner.Scan() {
				line := strings.TrimSpace(scanner.Text())
				if line != "" {
					str.WriteString(line)
					str.WriteRune('\n')
				}
			}
			if err := scanner.Err(); err != nil {
				log.Fatal(err)
			}
		}()

		str.WriteString("</script>{{end}}")
	}

	out, err := os.Create("generated.go")
	if err != nil {
		log.Fatal(err)
	}

	err = generator.Execute(out, str.String())
	if err != nil {
		log.Fatal(err)
	}

	err = out.Close()
	if err != nil {
		log.Fatal(err)
	}
}

var generator = template.Must(template.New("").Parse(`// Code generated by zenity; DO NOT EDIT.
// +build darwin

package osa

import "html/template"

var scripts = template.Must(template.New("").Parse(` + "`{{.}}`" + `))
`))