// ParseIfAddrsTemplate parses input as template input using the IfAddrs inputs,
// then returns the string output if there are no errors.
func ParseIfAddrsTemplate(input string, ifAddrs sockaddr.IfAddrs, tmplIn *template.Template) (string, error) {
// Create a template, add the function map, and parse the text.
tmpl, err := tmplIn.Option("missingkey=error").
Funcs(SourceFuncs).
Funcs(SortFuncs).
Funcs(FilterFuncs).
Funcs(HelperFuncs).
Parse(input)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("unable to parse template %+q: {{err}}", input), err)
}
var outWriter bytes.Buffer
err = tmpl.Execute(&outWriter, ifAddrs)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("unable to execute sockaddr input %+q: {{err}}", input), err)
}
return outWriter.String(), nil
}
func (pkg *Package) processTemplateFile(configDirectory string, name string, value string, funcMap GoTemplate.FuncMap) error {
var tmpl *GoTemplate.Template
// Template files can be absolute or live locally under the
// configuration directory in /tpl
if filepath.IsAbs(value) {
if _, err := os.Stat(value); err != nil {
return err
}
tmpl = GoTemplate.Must(GoTemplate.New(name).Funcs(funcMap).ParseFiles(value))
} else {
value = configDirectory + "/tpl/" + value
if _, err := os.Stat(value); err != nil {
return err
}
tmpl = GoTemplate.Must(GoTemplate.New(name).Funcs(funcMap).ParseFiles(value))
}
// See above
tmpl.Option("missingkey=error")
pkg.ProcessedTemplates[name] = tmpl
return nil
}