[#369] Request reproducer

Signed-off-by: Nikita Zinkevich <n.zinkevich@yadro.com>

cmd/s3-playback/modules/root.go

@@ -0,0 +1,67 @@
+package modules
+
+import (
+	"context"
+	"os"
+	"strings"
+	"time"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
+)
+
+const (
+	defaultPrintResponseLimit = 1024
+	cfgConfigPath             = "config"
+	cfgHTTPTimeoutFlag        = "http-timeout"
+	cfgSkipVerifyTLS          = "skip-verify-tls"
+)
+
+var (
+	cfgFile string
+	rootCmd = &cobra.Command{
+		Use:     "frostfs-s3-playback",
+		Version: version.Version,
+		Short:   "FrostFS S3 Traffic Playback",
+		Long:    "Helps to reproduce s3 commands from log files",
+		Example: "frostfs-s3-playback [--skip-verify-tls] [--http-timeout <timeout>] " +
+			"[--version] --config <config_path> <command>",
+		SilenceUsage:  true,
+		SilenceErrors: true,
+		PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
+			return viper.BindPFlags(cmd.Flags())
+		},
+		RunE: func(cmd *cobra.Command, _ []string) error {
+			return cmd.Help()
+		},
+	}
+)
+
+func Execute(ctx context.Context) (*cobra.Command, error) {
+	return rootCmd.ExecuteContextC(ctx)
+}
+
+func initConfig() {
+	viper.SetConfigFile(cfgFile)
+	_ = viper.ReadInConfig()
+}
+
+func init() {
+	cobra.OnInitialize(initConfig)
+	cobra.EnableTraverseRunHooks = true
+	rootCmd.SetGlobalNormalizationFunc(func(_ *pflag.FlagSet, name string) pflag.NormalizedName {
+		return pflag.NormalizedName(strings.ReplaceAll(name, "_", "-"))
+	})
+
+	rootCmd.PersistentFlags().StringVar(&cfgFile, cfgConfigPath, "", "configuration filepath")
+	_ = rootCmd.MarkPersistentFlagRequired(cfgConfigPath)
+	_ = rootCmd.MarkPersistentFlagFilename(cfgConfigPath)
+	rootCmd.PersistentFlags().Duration(cfgHTTPTimeoutFlag, time.Minute, "http request timeout")
+	rootCmd.PersistentFlags().Bool(cfgSkipVerifyTLS, false, "skip TLS certificate verification")
+	rootCmd.SetOut(os.Stdout)
+
+	initRunCmd()
+	rootCmd.AddCommand(runCmd)
+}