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112 lines
2.6 KiB
112 lines
2.6 KiB
//nolint: gosec
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package main
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import (
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"fmt"
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"math"
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"math/rand"
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"os"
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"path/filepath"
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"github.com/spf13/cobra"
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"github.com/tendermint/tendermint/libs/log"
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)
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const (
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randomSeed int64 = 4827085738
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)
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var logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
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func main() {
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NewCLI().Run()
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}
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// CLI is the Cobra-based command-line interface.
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type CLI struct {
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root *cobra.Command
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}
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// NewCLI sets up the CLI.
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func NewCLI() *CLI {
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cli := &CLI{}
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cli.root = &cobra.Command{
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Use: "generator",
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Short: "End-to-end testnet generator",
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SilenceUsage: true,
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SilenceErrors: true, // we'll output them ourselves in Run()
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RunE: func(cmd *cobra.Command, args []string) error {
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dir, err := cmd.Flags().GetString("dir")
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if err != nil {
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return err
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}
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groups, err := cmd.Flags().GetInt("groups")
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if err != nil {
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return err
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}
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p2pMode, err := cmd.Flags().GetString("p2p")
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if err != nil {
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return err
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}
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var opts Options
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switch mode := P2PMode(p2pMode); mode {
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case NewP2PMode, LegacyP2PMode, HybridP2PMode, MixedP2PMode:
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opts = Options{P2P: mode}
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default:
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return fmt.Errorf("p2p mode must be either new, legacy, hybrid or mixed got %s", p2pMode)
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}
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return cli.generate(dir, groups, opts)
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},
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}
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cli.root.PersistentFlags().StringP("dir", "d", "", "Output directory for manifests")
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_ = cli.root.MarkPersistentFlagRequired("dir")
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cli.root.PersistentFlags().IntP("groups", "g", 0, "Number of groups")
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cli.root.PersistentFlags().StringP("p2p", "p", string(MixedP2PMode),
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"P2P typology to be generated [\"new\", \"legacy\", \"hybrid\" or \"mixed\" ]")
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return cli
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}
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// generate generates manifests in a directory.
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func (cli *CLI) generate(dir string, groups int, opts Options) error {
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err := os.MkdirAll(dir, 0755)
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if err != nil {
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return err
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}
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manifests, err := Generate(rand.New(rand.NewSource(randomSeed)), opts)
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if err != nil {
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return err
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}
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if groups <= 0 {
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for i, manifest := range manifests {
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err = manifest.Save(filepath.Join(dir, fmt.Sprintf("gen-%04d.toml", i)))
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if err != nil {
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return err
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}
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}
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} else {
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groupSize := int(math.Ceil(float64(len(manifests)) / float64(groups)))
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for g := 0; g < groups; g++ {
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for i := 0; i < groupSize && g*groupSize+i < len(manifests); i++ {
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manifest := manifests[g*groupSize+i]
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err = manifest.Save(filepath.Join(dir, fmt.Sprintf("gen-group%02d-%04d.toml", g, i)))
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if err != nil {
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return err
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}
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}
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}
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}
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return nil
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}
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// Run runs the CLI.
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func (cli *CLI) Run() {
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if err := cli.root.Execute(); err != nil {
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logger.Error(err.Error())
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os.Exit(1)
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}
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}
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