package config
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import (
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"bufio"
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"path/filepath"
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"strings"
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"sync"
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flag "github.com/spf13/pflag"
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"github.com/tendermint/confer"
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)
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var app *confer.Config
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var appMtx sync.Mutex
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func App() *confer.Config {
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appMtx.Lock()
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defer appMtx.Unlock()
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if app == nil {
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Init("")
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}
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return app
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}
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func SetApp(a *confer.Config) {
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appMtx.Lock()
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defer appMtx.Unlock()
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app = a
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}
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// NOTE: If you change this, maybe also change initDefaults()
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var defaultConfigTmpl = `# This is a TOML config file.
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# For more information, see https://github.com/toml-lang/toml
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network = "tendermint_testnet_5"
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moniker = "__MONIKER__"
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node_laddr = "0.0.0.0:46656"
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seeds = "goldenalchemist.chaintest.net:46656"
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fast_sync = true
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db_backend = "leveldb"
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log_level = "debug"
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rpc_laddr = "0.0.0.0:46657"
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`
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var DefaultGenesis = `{
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"accounts": [
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{
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"address": "F81CB9ED0A868BD961C4F5BBC0E39B763B89FCB6",
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"amount": 690000000000
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},
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{
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"address": "0000000000000000000000000000000000000002",
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"amount": 565000000000
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},
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{
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"address": "9E54C9ECA9A3FD5D4496696818DA17A9E17F69DA",
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"amount": 525000000000
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},
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{
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"address": "0000000000000000000000000000000000000004",
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"amount": 110000000000
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}
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],
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"validators": [
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{
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"pub_key": [1, "178EC6008A4364508979C70CBF100BD4BCBAA12DDE6251F5F486B4FD09014F06"],
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"amount": 5000000000,
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"unbond_to": [
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{
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"address": "93E243AC8A01F723DE353A4FA1ED911529CCB6E5",
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"amount": 5000000000
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}
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]
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},
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{
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"pub_key": [1, "2A77777CC51467DE42350D4A8F34720D527734189BE64C7A930DD169E1FED3C6"],
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"amount": 5000000000,
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"unbond_to": [
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{
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"address": "93E243AC8A01F723DE353A4FA1ED911529CCB6E5",
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"amount": 5000000000
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}
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]
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},
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{
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"pub_key": [1, "3718E69D09B11B3AD3FA31AEF07EC416D2AEED241CACE7B0F30AE9803FFB0F08"],
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"amount": 5000000000,
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"unbond_to": [
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{
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"address": "93E243AC8A01F723DE353A4FA1ED911529CCB6E5",
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"amount": 5000000000
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}
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]
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},
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{
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"pub_key": [1, "C6B0440DEACD1E4CF1C736CEB8E38E788B700BA2B2045A55CB657A455CF5F889"],
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"amount": 5000000000,
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"unbond_to": [
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{
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"address": "93E243AC8A01F723DE353A4FA1ED911529CCB6E5",
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"amount": 5000000000
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}
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]
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},
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{
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"pub_key": [1, "3BA1190D54F91EFBF8B0125F7EC116AD4BA2894B6EE38564A5D5FD3230D91F7B"],
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"amount": 5000000000,
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"unbond_to": [
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{
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"address": "93E243AC8A01F723DE353A4FA1ED911529CCB6E5",
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"amount": 5000000000
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}
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]
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},
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{
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"pub_key": [1, "E56663353D01C58A1D4CDB4D14B70C2E3335BE1EBB6C3F697AF7882C03837962"],
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"amount": 5000000000,
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"unbond_to": [
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{
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"address": "9E54C9ECA9A3FD5D4496696818DA17A9E17F69DA",
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"amount": 5000000000
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}
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]
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}
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]
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}`
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// If not defined in the process args nor config file, then use these defaults.
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// NOTE: If you change this, maybe also change defaultConfig
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func initDefaults(rootDir string) {
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app.SetDefault("network", "tendermint_testnet0")
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app.SetDefault("version", "0.2.1")
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app.SetDefault("genesis_file", rootDir+"/genesis.json")
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app.SetDefault("moniker", "anonymous")
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app.SetDefault("node_laddr", "0.0.0.0:46656")
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app.SetDefault("seeds", "goldenalchemist.chaintest.net:46656")
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app.SetDefault("fast_sync", true)
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app.SetDefault("addrbook_file", rootDir+"/addrbook.json")
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app.SetDefault("priv_validator_file", rootDir+"/priv_validator.json")
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app.SetDefault("db_backend", "leveldb")
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app.SetDefault("db_dir", rootDir+"/data")
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app.SetDefault("log_level", "info")
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app.SetDefault("rpc_laddr", "0.0.0.0:46657")
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}
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func Init(rootDir string) {
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// Get rootdir
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if rootDir == "" {
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rootDir = os.Getenv("TMROOT")
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}
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if rootDir == "" {
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rootDir = os.Getenv("HOME") + "/.tendermint"
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}
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configFile := path.Join(rootDir, "config.toml")
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genesisFile := path.Join(rootDir, "genesis.json")
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// Write default config file if missing.
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if !fileExists(configFile) {
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// Ask user for moniker
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moniker := getInput("Type hostname: ", "anonymous")
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defaultConfig := strings.Replace(defaultConfigTmpl, "__MONIKER__", moniker, -1)
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writeFile(configFile, defaultConfig)
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}
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if !fileExists(genesisFile) {
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writeFile(genesisFile, DefaultGenesis)
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}
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// Initialize Config
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app = confer.NewConfig()
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initDefaults(rootDir)
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paths := []string{configFile}
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if err := app.ReadPaths(paths...); err != nil {
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log.Warn("Error reading configuration", "paths", paths, "error", err)
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}
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// Confused?
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//app.Debug()
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}
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func getInput(prompt string, defaultValue string) string {
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fmt.Print(prompt)
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reader := bufio.NewReader(os.Stdin)
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line, err := reader.ReadString('\n')
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if err != nil {
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log.Warn("Error reading stdin", "err", err)
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return defaultValue
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} else {
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line = strings.TrimSpace(line)
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if line == "" {
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return defaultValue
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}
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return line
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}
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}
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func fileExists(file string) bool {
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_, err := os.Stat(file)
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return !os.IsNotExist(err)
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}
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func writeFile(file, contents string) {
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if _, err := os.Stat(file); os.IsNotExist(err) {
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if strings.Index(file, "/") != -1 {
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err := os.MkdirAll(filepath.Dir(file), 0700)
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if err != nil {
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fmt.Printf("Could not create directory: %v", err)
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os.Exit(1)
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}
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}
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err := ioutil.WriteFile(file, []byte(contents), 0600)
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if err != nil {
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fmt.Printf("Could not write file: %v", err)
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os.Exit(1)
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}
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fmt.Printf("File written to %v.\n", file)
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}
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}
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func ParseFlags(args []string) {
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var flags = flag.NewFlagSet("main", flag.ExitOnError)
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var printHelp = false
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// Declare flags
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flags.BoolVar(&printHelp, "help", false, "Print this help message.")
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flags.String("moniker", app.GetString("moniker"), "Node Name")
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flags.String("node_laddr", app.GetString("node_laddr"), "Node listen address. (0.0.0.0:0 means any interface, any port)")
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flags.String("seeds", app.GetString("seeds"), "Comma delimited seed nodes")
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flags.Bool("fast_sync", app.GetBool("fast_sync"), "Fast blockchain syncing")
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flags.String("rpc_laddr", app.GetString("rpc_laddr"), "RPC listen address. Port required")
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flags.String("log_level", app.GetString("log_level"), "Log level")
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flags.Parse(args)
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if printHelp {
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flags.PrintDefaults()
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os.Exit(0)
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}
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// Merge parsed flag values onto app.
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app.BindPFlag("moniker", flags.Lookup("moniker"))
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app.BindPFlag("node_laddr", flags.Lookup("node_laddr"))
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app.BindPFlag("seeds", flags.Lookup("seeds"))
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app.BindPFlag("fast_sync", flags.Lookup("fast_sync"))
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app.BindPFlag("rpc_laddr", flags.Lookup("rpc_laddr"))
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app.BindPFlag("log_level", flags.Lookup("log_level"))
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// Confused?
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//app.Debug()
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}
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