// Stop tries to start all associated VMs
func Stop(
buffer *bytes.Buffer,
vmrun vmware.VmrunWrapper,
config *util.LCMConfiguration) error {
// Get all existing clones
clones, err := getClones(vmrun, config)
if err != nil {
return err
}
util.TryWrite2Columns(buffer, 20, "Clones", fmt.Sprint(len(clones)))
util.TryWriteln(buffer, "")
for _, clone := range clones {
if !clone.running {
continue
}
err := vmrun.Stop(clone.path, true)
if err != nil {
return err
}
vmName := tryVMNameExtraction(clone.path)
util.TryWrite2Columns(buffer, 20, " Stopped Clone", vmName)
}
util.TryWriteln(buffer, "")
return nil
}
// Use ensures that <<use>> number of clones exist
// Attention buffer may be nil
func Use(
buffer *bytes.Buffer,
vmrun vmware.VmrunWrapper,
config *util.LCMConfiguration,
use int) error {
// Check use parameter
if use < 0 {
return fmt.Errorf("Parameter must be >= zero")
}
// First check mac addresses
if len(config.Addresses) < use {
return fmt.Errorf("Tried to use %d clones with only %d mac addresses",
use, len(config.Addresses))
}
// Then check the number of clones
// Get all existing clones
clones, err := getClones(vmrun, config)
if err != nil {
return err
}
util.TryWrite2Columns(buffer, 20, "Old clones", fmt.Sprint(len(clones)))
util.TryWrite2Columns(buffer, 20, "New clones", fmt.Sprint(use))
// Check if number of existing clones equals the parameter (== noop)
if len(clones) == use {
util.TryWriteln(buffer, "")
util.TryWrite2Columns(buffer, 20, " Nothing to do...", ":'(")
util.TryWriteln(buffer, "")
return nil
}
// Check if clones need to be created
if len(clones) < use {
createdClones, err := cloneUpTo(vmrun, config, clones, use)
if err != nil {
return err
}
util.TryWriteln(buffer, "")
for _, createdClone := range createdClones {
util.TryWrite2Columns(buffer, 20, " Created Clone", createdClone)
}
util.TryWriteln(buffer, "")
}
// Check if clones need to be deleted
if len(clones) > use {
deletedClones, err := deleteUpTo(vmrun, config, clones, use)
if err != nil {
return err
}
util.TryWriteln(buffer, "")
for _, deletedClone := range deletedClones {
util.TryWrite2Columns(buffer, 20, " Deleted Clone", deletedClone)
}
util.TryWriteln(buffer, "")
}
return nil
}