remove --kind flag from the root command and split the package into two separate CLIs.

Each CLI uses the correct concrete client and it avoids mixing help output

update goreleaser config

cmd/x32-cli/snapshot.go

@@ -0,0 +1,75 @@
+package main
+
+import "fmt"
+
+type SnapshotCmdGroup struct {
+	List  ListCmd `help:"List all snapshots."        cmd:"list"`
+	Index struct {
+		Index  int       `arg:"" help:"The index of the snapshot."`
+		Name   NameCmd   `help:"Get or set the name of a snapshot."      cmd:"name"`
+		Save   SaveCmd   `help:"Save the current mixer state to a snapshot." cmd:"save"`
+		Load   LoadCmd   `help:"Load a mixer state from a snapshot."         cmd:"load"`
+		Delete DeleteCmd `help:"Delete a snapshot."                      cmd:"delete"`
+	} `help:"The index of the snapshot."            arg:""`
+}
+
+type ListCmd struct {
+}
+
+func (c *ListCmd) Run(ctx *context) error {
+	for i := range 64 {
+		name, err := ctx.Client.Snapshot.Name(i + 1)
+		if err != nil {
+			break
+		}
+		if name == "" {
+			continue
+		}
+		fmt.Fprintf(ctx.Out, "%d: %s\n", i+1, name)
+	}
+	return nil
+}
+
+type NameCmd struct {
+	Name *string `arg:"" help:"The name of the snapshot." optional:""`
+}
+
+func (c *NameCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	if c.Name == nil {
+		name, err := ctx.Client.Snapshot.Name(snapshot.Index.Index)
+		if err != nil {
+			return err
+		}
+		fmt.Fprintln(ctx.Out, name)
+		return nil
+	}
+
+	return ctx.Client.Snapshot.SetName(snapshot.Index.Index, *c.Name)
+}
+
+type SaveCmd struct {
+	Name string `arg:"" help:"The name of the snapshot."`
+}
+
+func (c *SaveCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	err := ctx.Client.Snapshot.CurrentName(c.Name)
+	if err != nil {
+		return err
+	}
+
+	return ctx.Client.Snapshot.CurrentSave(snapshot.Index.Index)
+}
+
+type LoadCmd struct {
+}
+
+func (c *LoadCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	return ctx.Client.Snapshot.CurrentLoad(snapshot.Index.Index)
+}
+
+type DeleteCmd struct {
+}
+
+func (c *DeleteCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	return ctx.Client.Snapshot.CurrentDelete(snapshot.Index.Index)
+}