refactor: Reduce zli binary size (#1805)

Signed-off-by: Alexei Dodon <adodon@cisco.com>

pkg/cli/client/root.go

@@ -0,0 +1,42 @@
+//go:build search
+// +build search
+
+package client
+
+import (
+	distspec "github.com/opencontainers/distribution-spec/specs-go"
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+
+	"zotregistry.io/zot/pkg/api/config"
+	"zotregistry.io/zot/pkg/cli/cmdflags"
+)
+
+// "zli" - client-side cli.
+func NewCliRootCmd() *cobra.Command {
+	showVersion := false
+
+	rootCmd := &cobra.Command{
+		Use:   "zli",
+		Short: "`zli`",
+		Long:  "`zli`",
+		Run: func(cmd *cobra.Command, args []string) {
+			if showVersion {
+				log.Info().Str("distribution-spec", distspec.Version).Str("commit", config.Commit).
+					Str("binary-type", config.BinaryType).Str("go version", config.GoVersion).Msg("version")
+			} else {
+				_ = cmd.Usage()
+				cmd.SilenceErrors = false
+			}
+		},
+	}
+
+	rootCmd.SilenceUsage = true
+
+	// additional cmds
+	enableCli(rootCmd)
+	// "version"
+	rootCmd.Flags().BoolVarP(&showVersion, cmdflags.VersionFlag, "v", false, "show the version and exit")
+
+	return rootCmd
+}