package config
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import (
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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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// NOTE: If you change this, maybe also change initDefaults()
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var defaultConfig = `# 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_testnet0"
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ListenAddr = "0.0.0.0:8080"
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# First node to connect to. Command-line overridable.
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SeedNode = "23.239.22.253:8080"
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[DB]
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# The only other available backend is "memdb"
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Backend = "leveldb"
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# Dir = "~/.tendermint/data"
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[Log.Stdout]
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Level = "info"
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[Log.File]
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Level = "debug"
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# Dir = "~/.tendermint/log"
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[RPC.HTTP]
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# For the RPC API HTTP server. Port required.
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ListenAddr = "127.0.0.1:8081"
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[Alert]
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# TODO: Document options
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[SMTP]
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# TODO: Document options
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`
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var defaultGenesis = `
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{
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"Accounts": [
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{
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"Address": "553722287BF1230C081C270908C1F453E7D1C397",
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"Amount": 200000000
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},
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{
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"Address": "AC89A6DDF4C309A89A2C4078CE409A5A7B282270",
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"Amount": 200000000
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}
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],
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"Validators": [
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{
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"PubKey": [1, "932A857D334BA5A38DD8E0D9CDE9C84687C21D0E5BEE64A1EDAB9C6C32344F1A"],
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"Amount": 100000000,
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"UnbondTo": [
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{
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"Address": "553722287BF1230C081C270908C1F453E7D1C397",
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"Amount": 100000000
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}
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]
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}
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]
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}
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`
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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("ListenAddr", "0.0.0.0:8080")
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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.Stdout.Level", "info")
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app.SetDefault("Log.File.Dir", rootDir+"/log")
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app.SetDefault("Log.File.Level", "debug")
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app.SetDefault("RPC.HTTP.ListenAddr", "0.0.0.0:8081")
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app.SetDefault("GenesisFile", rootDir+"/genesis.json")
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app.SetDefault("AddrBookFile", rootDir+"/addrbook.json")
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app.SetDefault("PrivValidatorfile", rootDir+"/priv_validator.json")
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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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checkWriteFile(configFile, defaultConfig)
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checkWriteFile(genesisFile, defaultGenesis)
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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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// Check if a file exists; if not, ensure the directory is made and write the file
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func checkWriteFile(configFile, contents string) {
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if _, err := os.Stat(configFile); os.IsNotExist(err) {
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if strings.Index(configFile, "/") != -1 {
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err := os.MkdirAll(filepath.Dir(configFile), 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(configFile, []byte(contents), 0600)
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if err != nil {
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fmt.Printf("Could not write config file: %v", err)
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os.Exit(1)
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}
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fmt.Printf("Config file written to %v.\n", configFile)
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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("listen_addr", app.GetString("ListenAddr"), "Listen address. (0.0.0.0:0 means any interface, any port)")
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flags.String("seed_node", app.GetString("SeedNode"), "Address of seed node")
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flags.String("rpc_http_listen_addr", app.GetString("RPC.HTTP.ListenAddr"), "RPC listen address. Port required")
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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("ListenAddr", flags.Lookup("listen_addr"))
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app.BindPFlag("SeedNode", flags.Lookup("seed_node"))
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app.BindPFlag("RPC.HTTP.ListenAddr", flags.Lookup("rpc_http_listen_addr"))
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// Confused?
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//app.Debug()
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}
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