func tailFile(filename string, config tail.Config, done chan bool) {
defer func() { done <- true }()
t, err := tail.TailFile(filename, config)
if err != nil {
fmt.Println(err)
return
}
for line := range t.Lines {
fmt.Println(line.Text)
}
err = t.Wait()
if err != nil {
fmt.Println(err)
}
}
ShortDescription: `
'ipfs log tail' is a utility command used to read log output as it is written.
`,
},
Run: func(req cmds.Request, res cmds.Response) {
path := fmt.Sprintf("%s/logs/events.log", req.Context().ConfigRoot)
outChan := make(chan interface{})
go func() {
defer close(outChan)
t, err := tail.TailFile(path, tail.Config{
Location: &tail.SeekInfo{0, 2},
Follow: true,
MustExist: true,
Logger: tail.DiscardingLogger,
})
if err != nil {
fmt.Println(err.Error())
return
}
defer t.Stop()
done := req.Context().Context.Done()
for line := range t.Lines {
// return when context closes
select {
case <-done:
return