// clean removes old cache files from cache root.
func clean() (err error) {
// Get a list of all pages.
pages, err := ini.ReadPages(settings.PagesPath)
if err != nil {
return errutil.Err(err)
}
// Get a list of all cached pages.
caches, err := ioutil.ReadDir(settings.CacheRoot)
if err != nil {
return errutil.Err(err)
}
for _, cache := range caches {
remove := true
for _, p := range pages {
pageName, err := filename.Encode(p.UrlAsFilename())
if err != nil {
return errutil.Err(err)
}
if cache.Name() == pageName+".htm" {
remove = false
break
}
}
if remove {
err = os.Remove(settings.CacheRoot + cache.Name())
if err != nil {
return err
}
}
}
return nil
}
// Wait for input and send output to client.
func takeInput(conn net.Conn) (err error) {
for {
query, err := bufioutil.NewReader(conn).ReadLine()
if err != nil {
if err.Error() == "EOF" {
break
}
return errutil.Err(err)
}
// Do something with the query
switch query {
case settings.QueryUpdates:
// Encode (send) the value.
err = gob.NewEncoder(conn).Encode(settings.Updates)
case settings.QueryClearAll:
settings.Updates = make(map[string]bool)
err = settings.SaveUpdates()
case settings.QueryForceRecheck:
pages, err := ini.ReadPages(settings.PagesPath)
if err != nil {
return errutil.Err(err)
}
err = page.ForceUpdate(pages)
}
if err != nil {
return errutil.Err(err)
}
}
return nil
}
func watchConfig(watcher *fsnotify.Watcher) (err error) {
for {
select {
case ev := <-watcher.Event:
if ev != nil {
if ev.Name == settings.ConfigPath {
// Read settings from config file.
err = ini.ReadSettings(settings.ConfigPath)
if err != nil {
return errutil.Err(err)
}
}
// Retrieve an array of pages from INI file.
pages, err := ini.ReadPages(settings.PagesPath)
if err != nil {
return errutil.Err(err)
}
err = page.ForceUpdate(pages)
if err != nil {
return errutil.Err(err)
}
}
case err = <-watcher.Error:
if err != nil {
return errutil.Err(err)
}
}
}
}