func Pin(b *hb.Bot, actor, path, label string) {
if !strings.HasPrefix(path, "/ipfs") && !strings.HasPrefix(path, "/ipns") {
path = "/ipfs/" + path
}
errs := make(chan error, len(shs))
var wg sync.WaitGroup
b.Msg(actor, fmt.Sprintf("now pinning %s", path))
// pin to every node concurrently.
for i, sh := range shs {
wg.Add(1)
go func(i int, sh *shell.Shell) {
defer wg.Done()
if err := tryPin(path, sh); err != nil {
errs <- fmt.Errorf("[host %d] %s", i, err)
}
}(i, sh)
}
// close the err chan when done.
go func() {
wg.Wait()
close(errs)
}()
// wait on the err chan and print every err we get as we get it.
var failed int
for err := range errs {
b.Msg(actor, err.Error())
failed++
}
successes := len(shs) - failed
b.Msg(actor, fmt.Sprintf("pin %d/%d successes -- %s%s", successes, len(shs), gateway, path))
if err := writePin(path, label); err != nil {
b.Msg(actor, fmt.Sprintf("failed to write log entry for last pin: %s", err))
}
}
