// addCharmViaAPI calls the appropriate client API calls to add the
// given charm URL to state. Also displays the charm URL of the added
// charm on stdout.
func addCharmViaAPI(client *api.Client, ctx *cmd.Context, curl *charm.URL, repo charm.Repository) (*charm.URL, error) {
if curl.Revision < 0 {
latest, err := charm.Latest(repo, curl)
if err != nil {
return nil, err
}
curl = curl.WithRevision(latest)
}
switch curl.Schema {
case "local":
ch, err := repo.Get(curl)
if err != nil {
return nil, err
}
stateCurl, err := client.AddLocalCharm(curl, ch)
if err != nil {
return nil, err
}
curl = stateCurl
case "cs":
err := client.AddCharm(curl)
if err != nil {
return nil, err
}
default:
return nil, fmt.Errorf("unsupported charm URL schema: %q", curl.Schema)
}
ctx.Infof("Added charm %q to the environment.", curl)
return curl, nil
}
