morning-coffee/templates.go

48 lines
946 B
Go

package main
import (
"fmt"
"io"
"path/filepath"
"text/template"
"time"
)
func getRenderDuration(start time.Time) time.Duration {
return time.Now().Sub(start)
}
func Render(w io.Writer, templateName string, data interface{}) error {
asTemplatePath := func(templateName string) string {
return filepath.Join("templates", fmt.Sprintf("%s.html.tmpl", templateName))
}
templatePartials := []string{
asTemplatePath(templateName),
asTemplatePath("base"),
asTemplatePath("footer"),
}
start := time.Now()
tmpl := template.New(templateName).Funcs(template.FuncMap{
"getRenderDuration": getRenderDuration,
})
tmpl, err := tmpl.ParseFiles(templatePartials...)
if err != nil {
return err
}
type RenderMeta struct {
RenderStart time.Time
}
type RenderContext struct {
Data interface{}
Meta RenderMeta
}
return tmpl.ExecuteTemplate(w, "base", RenderContext{Data: data, Meta: RenderMeta{RenderStart: start}})
}