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// Generates flags.go.
package main
import (
"log"
"os"
"path/filepath"
"strings"
"text/template"
"github.com/posener/script"
)
const tmplGlob = "gen/*.go.gotmpl"
type flag struct {
Name string
Type string
IsBool bool
CustomPredict bool
}
func (f flag) NewInternalTypeFuncName() string {
return "new" + strings.Title(f.InternalTypeName())
}
func (f flag) InternalTypeName() string {
return strings.ToLower(f.Name[:1]) + f.Name[1:] + "Value"
}
var flags = []flag{
{Name: "String", Type: "string"},
{Name: "Bool", Type: "bool", IsBool: true, CustomPredict: true},
{Name: "Int", Type: "int"},
{Name: "Duration", Type: "time.Duration"},
}
var tmpl = template.Must(template.ParseGlob(tmplGlob))
func main() {
for _, t := range tmpl.Templates() {
fileName := outFileName(t.Name())
f, err := os.Create(fileName)
if err != nil {
panic(err)
}
defer f.Close()
log.Printf("Writing %s", fileName)
err = t.Execute(f, flags)
if err != nil {
panic(err)
}
// Format the file.
err = script.ExecHandleStderr(os.Stderr, "goimports", "-w", fileName).ToStdout()
if err != nil {
panic(err)
}
}
}
func outFileName(templateName string) string {
name := filepath.Base(templateName)
// Remove .gotmpl suffix.
return name[:strings.LastIndex(name, ".")]
}
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