list action

Signed-off-by: Luca Stocchi <[email protected]>

cmd/macadam/list.go

@@ -0,0 +1,117 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/cfergeau/macadam/cmd/macadam/registry"
+	macadam "github.com/cfergeau/macadam/pkg/machinedriver"
+	"github.com/containers/common/pkg/completion"
+	"github.com/crc-org/machine/libmachine/state"
+	"github.com/spf13/cobra"
+)
+
+var (
+	lsCmd = &cobra.Command{
+		Use:     "list [options]",
+		Aliases: []string{"ls"},
+		Short:   "List machines",
+		Long:    "List managed virtual machines.",
+		// do not use machinePreRunE, as that pre-sets the provider
+		RunE:              list,
+		Args:              cobra.MaximumNArgs(0),
+		ValidArgsFunction: completion.AutocompleteNone,
+		Example: `macadam list,
+  macadam list --format json
+  macadam ls`,
+	}
+	listFlag = listFlagType{}
+)
+
+type listFlagType struct {
+	format string
+}
+
+type ListReporter struct {
+	Image          string
+	Created        string
+	Running        bool
+	Starting       bool
+	LastUp         string
+	CPUs           uint64
+	Memory         string
+	DiskSize       string
+	Port           int
+	RemoteUsername string
+	IdentityPath   string
+	VMType         string
+}
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Command: lsCmd,
+	})
+
+	flags := lsCmd.Flags()
+	formatFlagName := "format"
+	flags.StringVar(&listFlag.format, formatFlagName, "{{range .}}{{.Name}}\t{{.VMType}}\t{{.Created}}\t{{.LastUp}}\t{{.CPUs}}\t{{.Memory}}\t{{.DiskSize}}\n{{end -}}", "Format volume output using JSON or a Go template")
+}
+
+func list(cmd *cobra.Command, args []string) error {
+	driver, err := macadam.GetDriverByMachineName(defaultMachineName)
+	if err != nil {
+		return nil
+	}
+
+	machineReporter := toMachineFormat(driver)
+	b, err := json.MarshalIndent(machineReporter, "", "    ")
+	if err != nil {
+		return err
+	}
+	os.Stdout.Write(b)
+	return nil
+
+}
+
+func strTime(t time.Time) string {
+	iso, err := t.MarshalText()
+	if err != nil {
+		return ""
+	}
+	return string(iso)
+}
+
+func strUint(u uint64) string {
+	return strconv.FormatUint(u, 10)
+}
+
+func toMachineFormat(d *macadam.Driver) []ListReporter {
+	machineResponses := make([]ListReporter, 0, 1)
+
+	vm := d.GetVmConfig()
+
+	vmState, err := d.GetState()
+	if err != nil {
+		return machineResponses
+	}
+
+	response := new(ListReporter)
+	response.Image = vm.ImagePath.Path
+	response.Running = vmState == state.Running
+	response.LastUp = strTime(vm.LastUp)
+	response.Created = strTime(vm.Created)
+	response.CPUs = vm.Resources.CPUs
+	response.Memory = strUint(uint64(vm.Resources.Memory.ToBytes()))
+	response.DiskSize = strUint(uint64(vm.Resources.DiskSize.ToBytes()))
+	response.Port = vm.SSH.Port
+	response.RemoteUsername = vm.SSH.RemoteUsername
+	response.IdentityPath = vm.SSH.IdentityPath
+	response.Starting = vm.Starting
+	response.VMType = d.GetVMType().String()
+
+	machineResponses = append(machineResponses, *response)
+
+	return machineResponses
+}

pkg/machinedriver/driver.go

@@ -614,3 +614,11 @@ func (d *Driver) UpdateSSHConfig(sshConfig drivers.SSHConfig) error {
 
 	return d.vmConfig.Write()
 }
+
+func (d *Driver) GetVmConfig() *vmconfigs.MachineConfig {
+	return d.vmConfig
+}
+
+func (d *Driver) GetVMType() define.VMType {
+	return d.vmProvider.VMType()
+}