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94 lines
2.2 KiB
94 lines
2.2 KiB
package commands
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import (
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"fmt"
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"path"
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"time"
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"github.com/spf13/cobra"
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"github.com/tendermint/tendermint/types"
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cmn "github.com/tendermint/tmlibs/common"
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)
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//flags
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var (
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nValidators int
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dataDir string
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)
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func init() {
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TestnetFilesCmd.Flags().IntVar(&nValidators, "n", 4,
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"Number of validators to initialize the testnet with")
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TestnetFilesCmd.Flags().StringVar(&dataDir, "dir", "mytestnet",
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"Directory to store initialization data for the testnet")
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}
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// TestnetFilesCmd allows initialisation of files for a
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// Tendermint testnet.
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var TestnetFilesCmd = &cobra.Command{
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Use: "testnet",
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Short: "Initialize files for a Tendermint testnet",
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Run: testnetFiles,
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}
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func testnetFiles(cmd *cobra.Command, args []string) {
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genVals := make([]types.GenesisValidator, nValidators)
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// Initialize core dir and priv_validator.json's
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for i := 0; i < nValidators; i++ {
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mach := cmn.Fmt("mach%d", i)
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err := initMachCoreDirectory(dataDir, mach)
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if err != nil {
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cmn.Exit(err.Error())
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}
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// Read priv_validator.json to populate vals
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privValFile := path.Join(dataDir, mach, "priv_validator.json")
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privVal := types.LoadPrivValidatorFS(privValFile)
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genVals[i] = types.GenesisValidator{
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PubKey: privVal.GetPubKey(),
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Power: 1,
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Name: mach,
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}
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}
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// Generate genesis doc from generated validators
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genDoc := &types.GenesisDoc{
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GenesisTime: time.Now(),
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ChainID: "chain-" + cmn.RandStr(6),
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Validators: genVals,
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}
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// Write genesis file.
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for i := 0; i < nValidators; i++ {
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mach := cmn.Fmt("mach%d", i)
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if err := genDoc.SaveAs(path.Join(dataDir, mach, "genesis.json")); err != nil {
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panic(err)
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}
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}
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fmt.Println(cmn.Fmt("Successfully initialized %v node directories", nValidators))
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}
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// Initialize per-machine core directory
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func initMachCoreDirectory(base, mach string) error {
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dir := path.Join(base, mach)
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err := cmn.EnsureDir(dir, 0777)
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if err != nil {
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return err
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}
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// Create priv_validator.json file if not present
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ensurePrivValidator(path.Join(dir, "priv_validator.json"))
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return nil
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}
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func ensurePrivValidator(file string) {
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if cmn.FileExists(file) {
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return
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}
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privValidator := types.GenPrivValidatorFS(file)
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privValidator.Save()
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}
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