func (h *Handlers) download(v *vagrantutil.Vagrant, box, filePath string, queue <-chan chan error) {
h.log().Debug("downloading %q box...", box)
var listeners []chan error
done := make(chan error)
go func() {
err := vagrantutil.Wait(v.BoxAdd(&vagrantutil.Box{Name: box}))
if err == vagrantutil.ErrBoxAlreadyExists {
// Ignore the above error.
err = nil
}
done <- err
}()
for {
select {
case l := <-queue:
listeners = append(listeners, l)
case err := <-done:
// Remove the box from in progress.
h.boxMu.Lock()
delete(h.boxNames, box)
delete(h.boxPaths, filePath)
h.boxMu.Unlock()
// Defensive channel drain: try to collect listeners
// that may have registered after receiving from done
// but before taking boxMu lock.
listeners = append(listeners, drain(queue)...)
// Notify all listeners.
for _, l := range listeners {
l <- err
}
h.log().Debug("downloading %q box finished: err=%v", box, err)
return
}
}
}
func (h *Handlers) create(r *kite.Request, v *vagrantutil.Vagrant) (interface{}, error) {
if r.Args == nil {
return nil, errors.New("missing arguments")
}
var params VagrantCreateOptions
if err := r.Args.One().Unmarshal(¶ms); err != nil {
return nil, err
}
params.FilePath = h.absolute(params.FilePath)
if params.Box == "" {
params.Box = "ubuntu/trusty64"
}
if params.Hostname == "" {
params.Hostname = r.LocalKite.Config.Username
}
if params.Memory == 0 {
params.Memory = 1024
}
if params.Cpus == 0 {
params.Cpus = 1
}
if params.TLSProxyHostname == "" {
params.TLSProxyHostname = pem.Hostname
}
switch {
case !params.Dirty:
// Ensure vagrant working dir has no machine provisioned.
err := vagrantutil.Wait(v.Destroy())
if err != nil {
h.log().Error("unable to destroy before create: %s", err)
break
}
status, err := v.Status()
if err != nil {
h.log().Error("unable to check status: %s", err)
break
}
if status != vagrantutil.NotCreated {
h.log().Error("dirty Vagrant directory: want status to be %v, was %v", vagrantutil.NotCreated, status)
}
}
h.boxAdd(v, params.Box, params.FilePath)
vagrantFile, err := createTemplate(¶ms)
if err != nil {
return nil, err
}
if err := v.Create(vagrantFile); err != nil {
return nil, err
}
return params, nil
}