// Gives control of chan to caller
func (mr *ModRunner) runOnChan(modchan chan *moddwatch.Mod, readyCallback func()) error {
dworld, err := NewDaemonWorld(mr.Config, mr.Log)
if err != nil {
return err
}
defer dworld.Shutdown(os.Kill)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, os.Kill)
defer signal.Reset(os.Interrupt, os.Kill)
go func() {
dworld.Shutdown(<-c)
os.Exit(0)
}()
watchpaths := mr.Config.WatchPatterns()
if mr.ConfReload {
watchpaths = append(watchpaths, filepath.Dir(mr.ConfPath))
}
// FIXME: This takes a long time. We could start it in parallel with the
// first process run in a goroutine
watcher, err := moddwatch.Watch(watchpaths, lullTime, modchan)
if err != nil {
return fmt.Errorf("Error watching: %s", err)
}
defer watcher.Stop()
mr.trigger(nil, dworld)
go readyCallback()
for mod := range modchan {
if mod == nil {
break
}
if mr.ConfReload && mod.Has(mr.ConfPath) {
mr.Log.Notice("Reloading config %s", mr.ConfPath)
err := mr.ReadConfig()
if err != nil {
mr.Log.Warn("%s", err)
continue
} else {
return nil
}
}
mr.Log.SayAs("debug", "Delta: \n%s", mod.String())
mr.trigger(mod, dworld)
}
return nil
}
// WatchPaths watches a set of paths, and broadcasts changes through reloader.
func WatchPaths(paths, excludePatterns []string, reloader livereload.Reloader, log termlog.Logger) error {
ch := make(chan []string, 1)
for _, path := range paths {
modchan := make(chan *moddwatch.Mod, 1)
_, err := moddwatch.Watch([]string{path}, batchTime, modchan)
if err != nil {
return err
}
go func() {
for mod := range modchan {
filteredMod, err := mod.Filter([]string{"**/*"}, excludePatterns)
if err != nil {
log.Shout("Error filtering watches: %s", err)
}
if !filteredMod.Empty() {
ch <- filteredMod.All()
}
}
}()
}
go reloader.Watch(ch)
return nil
}
// Watch watches an endpoint for changes, if it supports them.
func (r Route) Watch(ch chan []string, excludePatterns []string, log termlog.Logger) error {
switch r.Endpoint.(type) {
case *filesystemEndpoint:
ep := *r.Endpoint.(*filesystemEndpoint)
modchan := make(chan *moddwatch.Mod, 1)
_, err := moddwatch.Watch([]string{ep.Root + "/..."}, batchTime, modchan)
if err != nil {
return err
}
go func() {
for mod := range modchan {
filteredMod, err := mod.Filter([]string{"**/*"}, excludePatterns)
if err != nil {
log.Shout("Error filtering watches: %s", err)
}
if !filteredMod.Empty() {
ch <- filteredMod.All()
}
}
}()
}
return nil
}