templates.go

func readTemplateFile(abspath string) (*template.Template, error) {
    relpath, err := filepath.Rel(TemplateRoot, abspath)
    if err != nil {
        return nil, fmt.Errorf(`core: unable to resolve template file path %v`, abspath)
    }

    t := template.New(relpath).Funcs(template.FuncMap{
        "jsonblob": func(v interface{}) (template.JS, error) {
            b, err := json.Marshal(v)
            if err != nil {
                return "", err
            }
            return template.JS(b), nil
        },
    })

    b, err := ioutil.ReadFile(abspath)
    if err != nil {
        return nil, err
    }
    s := string(b)

    t, err = t.Parse(s)
    if err != nil {
        return nil, fmt.Errorf(`core: unable to read template file at path %v: %v`,     abspath, err)
    }

    fi, err := os.Stat(abspath)
    if err != nil {
        return nil, fmt.Errorf(`core: unable to stat (2) template at path %v: %v`,      abspath, err)
    }

    templateCache[relpath] = cachedTemplate{t, fi}
    return t, nil
}