add cmdline tool for macadam

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

.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch Package",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "buildFlags": [
+                "-tags",
+                "containers_image_openpgp exclude_graphdriver_btrfs btrfs_noversion",
+            ],
+            "program": "${workspaceFolder}/cmd/macadam",
+            "args": ["init", "mac1"],
+        }
+    ]
+}

cmd/macadam/init.go

@@ -0,0 +1,183 @@
+//go:build amd64 || arm64
+
+package main
+
+import (
+	"fmt"
+
+	"github.com/cfergeau/macadam/cmd/macadam/registry"
+	macadam "github.com/cfergeau/macadam/pkg/machinedriver"
+	"github.com/containers/common/pkg/completion"
+	ldefine "github.com/containers/podman/v5/libpod/define"
+	"github.com/containers/podman/v5/pkg/machine/define"
+	"github.com/containers/podman/v5/pkg/machine/env"
+	provider2 "github.com/containers/podman/v5/pkg/machine/provider"
+	"github.com/spf13/cobra"
+)
+
+var (
+	initCmd = &cobra.Command{
+		Use:               "init [options] [NAME]",
+		Short:             "Initialize a virtual machine",
+		Long:              "Initialize a virtual machine",
+		RunE:              initMachine,
+		Args:              cobra.MaximumNArgs(1),
+		Example:           `macadam init podman-machine-default`,
+		ValidArgsFunction: completion.AutocompleteNone,
+	}
+
+	initOpts           = define.InitOptions{}
+	initOptionalFlags  = InitOptionalFlags{}
+	defaultMachineName = define.DefaultMachineName
+	now                bool
+)
+
+// Flags which have a meaning when unspecified that differs from the flag default
+type InitOptionalFlags struct {
+	UserModeNetworking bool
+}
+
+// maxMachineNameSize is set to thirty to limit huge machine names primarily
+// because macOS has a much smaller file size limit.
+const maxMachineNameSize = 30
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Command: initCmd,
+	})
+	/* flags := initCmd.Flags()
+	cfg := registry.PodmanConfig()
+
+	cpusFlagName := "cpus"
+	flags.Uint64Var(
+		&initOpts.CPUS,
+		cpusFlagName, cfg.ContainersConfDefaultsRO.Machine.CPUs,
+		"Number of CPUs",
+	)
+	_ = initCmd.RegisterFlagCompletionFunc(cpusFlagName, completion.AutocompleteNone)
+
+	diskSizeFlagName := "disk-size"
+	flags.Uint64Var(
+		&initOpts.DiskSize,
+		diskSizeFlagName, cfg.ContainersConfDefaultsRO.Machine.DiskSize,
+		"Disk size in GiB",
+	)
+
+	_ = initCmd.RegisterFlagCompletionFunc(diskSizeFlagName, completion.AutocompleteNone)
+
+	memoryFlagName := "memory"
+	flags.Uint64VarP(
+		&initOpts.Memory,
+		memoryFlagName, "m", cfg.ContainersConfDefaultsRO.Machine.Memory,
+		"Memory in MiB",
+	)
+	_ = initCmd.RegisterFlagCompletionFunc(memoryFlagName, completion.AutocompleteNone)
+
+	flags.BoolVar(
+		&now,
+		"now", false,
+		"Start machine now",
+	)
+	timezoneFlagName := "timezone"
+	defaultTz := cfg.ContainersConfDefaultsRO.TZ()
+	if len(defaultTz) < 1 {
+		defaultTz = "local"
+	}
+	flags.StringVar(&initOpts.TimeZone, timezoneFlagName, defaultTz, "Set timezone")
+	_ = initCmd.RegisterFlagCompletionFunc(timezoneFlagName, completion.AutocompleteDefault)
+
+	flags.BoolVar(
+		&initOpts.ReExec,
+		"reexec", false,
+		"process was rexeced",
+	)
+	_ = flags.MarkHidden("reexec")
+
+	UsernameFlagName := "username"
+	flags.StringVar(&initOpts.Username, UsernameFlagName, cfg.ContainersConfDefaultsRO.Machine.User, "Username used in image")
+	_ = initCmd.RegisterFlagCompletionFunc(UsernameFlagName, completion.AutocompleteDefault)
+
+	ImageFlagName := "image"
+	flags.StringVar(&initOpts.Image, ImageFlagName, cfg.ContainersConfDefaultsRO.Machine.Image, "Bootable image for machine")
+	_ = initCmd.RegisterFlagCompletionFunc(ImageFlagName, completion.AutocompleteDefault)
+
+	// Deprecate image-path option, use --image instead
+	ImagePathFlagName := "image-path"
+	flags.StringVar(&initOpts.Image, ImagePathFlagName, cfg.ContainersConfDefaultsRO.Machine.Image, "Bootable image for machine")
+	_ = initCmd.RegisterFlagCompletionFunc(ImagePathFlagName, completion.AutocompleteDefault)
+	if err := flags.MarkDeprecated(ImagePathFlagName, "use --image instead"); err != nil {
+		logrus.Error("unable to mark image-path flag deprecated")
+	}
+
+	VolumeFlagName := "volume"
+	flags.StringArrayVarP(&initOpts.Volumes, VolumeFlagName, "v", cfg.ContainersConfDefaultsRO.Machine.Volumes.Get(), "Volumes to mount, source:target")
+	_ = initCmd.RegisterFlagCompletionFunc(VolumeFlagName, completion.AutocompleteDefault)
+
+	USBFlagName := "usb"
+	flags.StringArrayVarP(&initOpts.USBs, USBFlagName, "", []string{},
+		"USB Host passthrough: bus=$1,devnum=$2 or vendor=$1,product=$2")
+	_ = initCmd.RegisterFlagCompletionFunc(USBFlagName, completion.AutocompleteDefault)
+
+	VolumeDriverFlagName := "volume-driver"
+	flags.String(VolumeDriverFlagName, "", "Optional volume driver")
+	_ = initCmd.RegisterFlagCompletionFunc(VolumeDriverFlagName, completion.AutocompleteDefault)
+	if err := flags.MarkDeprecated(VolumeDriverFlagName, "will be ignored"); err != nil {
+		logrus.Error("unable to mark volume-driver flag deprecated")
+	}
+
+	IgnitionPathFlagName := "ignition-path"
+	flags.StringVar(&initOpts.IgnitionPath, IgnitionPathFlagName, "", "Path to ignition file")
+	_ = initCmd.RegisterFlagCompletionFunc(IgnitionPathFlagName, completion.AutocompleteDefault)
+
+	rootfulFlagName := "rootful"
+	flags.BoolVar(&initOpts.Rootful, rootfulFlagName, false, "Whether this machine should prefer rootful container execution")
+
+	userModeNetFlagName := "user-mode-networking"
+	flags.BoolVar(&initOptionalFlags.UserModeNetworking, userModeNetFlagName, false,
+		"Whether this machine should use user-mode networking, routing traffic through a host user-space process") */
+}
+
+func initMachine(cmd *cobra.Command, args []string) error {
+	provider, err := provider2.Get()
+	if err != nil {
+		return err
+	}
+
+	dirs, err := env.GetMachineDirs(provider.VMType())
+	if err != nil {
+		return err
+	}
+
+	machineName := defaultMachineName
+	if len(args) > 0 {
+		if len(args[0]) > maxMachineNameSize {
+			return fmt.Errorf("machine name %q must be %d characters or less", args[0], maxMachineNameSize)
+		}
+		machineName = args[0]
+
+		if !ldefine.NameRegex.MatchString(machineName) {
+			return fmt.Errorf("invalid name %q: %w", machineName, ldefine.RegexError)
+		}
+	}
+
+	sshIdentityPath, err := env.GetSSHIdentityPath(define.DefaultIdentityName)
+	if err != nil {
+		return err
+	}
+
+	driver := macadam.NewDriver(machineName, dirs.ConfigDir.Path, sshIdentityPath)
+
+	/* 	sshPort, err := ports.AllocateMachinePort()
+	   	if err != nil {
+	   		return err
+	   	}
+
+	   	sshConfig := drivers.SSHConfig{
+	   		IdentityPath:   sshIdentityPath,
+	   		Port:           sshPort,
+	   		RemoteUsername: "username", //todo user can provide it
+	   	}
+	   	driver.UpdateSSHConfig(sshConfig) */
+
+	return driver.Create()
+}