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//nolint: gosec
package main
import (
"fmt"
"math"
"math/rand"
"os"
"path/filepath"
"github.com/spf13/cobra"
"github.com/tendermint/tendermint/libs/log"
)
const (
randomSeed int64 = 4827085738
)
var logger = log.NewTMLogger(log.NewSyncWriter(os.Stdout))
func main() {
NewCLI().Run()
}
// CLI is the Cobra-based command-line interface.
type CLI struct {
root *cobra.Command
}
// NewCLI sets up the CLI.
func NewCLI() *CLI {
cli := &CLI{}
cli.root = &cobra.Command{
Use: "generator",
Short: "End-to-end testnet generator",
SilenceUsage: true,
SilenceErrors: true, // we'll output them ourselves in Run()
RunE: func(cmd *cobra.Command, args []string) error {
dir, err := cmd.Flags().GetString("dir")
if err != nil {
return err
}
groups, err := cmd.Flags().GetInt("groups")
if err != nil {
return err
}
return cli.generate(dir, groups)
},
}
cli.root.PersistentFlags().StringP("dir", "d", "", "Output directory for manifests")
_ = cli.root.MarkPersistentFlagRequired("dir")
cli.root.PersistentFlags().IntP("groups", "g", 0, "Number of groups")
return cli
}
// generate generates manifests in a directory.
func (cli *CLI) generate(dir string, groups int) error {
err := os.MkdirAll(dir, 0755)
if err != nil {
return err
}
manifests, err := Generate(rand.New(rand.NewSource(randomSeed)))
if err != nil {
return err
}
if groups <= 0 {
for i, manifest := range manifests {
err = manifest.Save(filepath.Join(dir, fmt.Sprintf("gen-%04d.toml", i)))
if err != nil {
return err
}
}
} else {
groupSize := int(math.Ceil(float64(len(manifests)) / float64(groups)))
for g := 0; g < groups; g++ {
for i := 0; i < groupSize && g*groupSize+i < len(manifests); i++ {
manifest := manifests[g*groupSize+i]
err = manifest.Save(filepath.Join(dir, fmt.Sprintf("gen-group%02d-%04d.toml", g, i)))
if err != nil {
return err
}
}
}
}
return nil
}
// Run runs the CLI.
func (cli *CLI) Run() {
if err := cli.root.Execute(); err != nil {
logger.Error(err.Error())
os.Exit(1)
}
}