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package config
import (
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"sync"
flag "github.com/spf13/pflag"
"github.com/tendermint/confer"
)
var app *confer.Config
var appMtx sync.Mutex
func App() *confer.Config {
appMtx.Lock()
defer appMtx.Unlock()
if app == nil {
Init("")
}
return app
}
// NOTE: If you change this, maybe also change initDefaults()
var defaultConfig = `# This is a TOML config file.
# For more information, see https://github.com/toml-lang/toml
Network = "tendermint_testnet0"
ListenAddr = "0.0.0.0:8080"
# First node to connect to. Command-line overridable.
SeedNode = "23.239.22.253:8080"
[DB]
# The only other available backend is "memdb"
Backend = "leveldb"
# Dir = "~/.tendermint/data"
[Log.Stdout]
Level = "info"
[Log.File]
Level = "debug"
# Dir = "~/.tendermint/log"
[RPC.HTTP]
# For the RPC API HTTP server. Port required.
ListenAddr = "127.0.0.1:8081"
[Alert]
# TODO: Document options
[SMTP]
# TODO: Document options
`
var defaultGenesis = `
{
"Accounts": [
{
"Address": "553722287BF1230C081C270908C1F453E7D1C397",
"Amount": 200000000
},
{
"Address": "AC89A6DDF4C309A89A2C4078CE409A5A7B282270",
"Amount": 200000000
}
],
"Validators": [
{
"PubKey": [1, "932A857D334BA5A38DD8E0D9CDE9C84687C21D0E5BEE64A1EDAB9C6C32344F1A"],
"Amount": 100000000,
"UnbondTo": [
{
"Address": "553722287BF1230C081C270908C1F453E7D1C397",
"Amount": 100000000
}
]
}
]
}
`
// NOTE: If you change this, maybe also change defaultConfig
func initDefaults(rootDir string) {
app.SetDefault("Network", "tendermint_testnet0")
app.SetDefault("ListenAddr", "0.0.0.0:8080")
app.SetDefault("DB.Backend", "leveldb")
app.SetDefault("DB.Dir", rootDir+"/data")
app.SetDefault("Log.Stdout.Level", "info")
app.SetDefault("Log.File.Dir", rootDir+"/log")
app.SetDefault("Log.File.Level", "debug")
app.SetDefault("RPC.HTTP.ListenAddr", "0.0.0.0:8081")
app.SetDefault("GenesisFile", rootDir+"/genesis.json")
app.SetDefault("AddrBookFile", rootDir+"/addrbook.json")
app.SetDefault("PrivValidatorfile", rootDir+"/priv_validator.json")
}
func Init(rootDir string) {
// Get RootDir
if rootDir == "" {
rootDir = os.Getenv("TMROOT")
}
if rootDir == "" {
rootDir = os.Getenv("HOME") + "/.tendermint"
}
configFile := path.Join(rootDir, "config.toml")
genesisFile := path.Join(rootDir, "genesis.json")
// Write default config file if missing.
checkWriteFile(configFile, defaultConfig)
checkWriteFile(genesisFile, defaultGenesis)
// Initialize Config
app = confer.NewConfig()
initDefaults(rootDir)
paths := []string{configFile}
if err := app.ReadPaths(paths...); err != nil {
log.Warn("Error reading configuration", "paths", paths, "error", err)
}
// Confused?
// app.Debug()
}
// Check if a file exists; if not, ensure the directory is made and write the file
func checkWriteFile(configFile, contents string) {
if _, err := os.Stat(configFile); os.IsNotExist(err) {
if strings.Index(configFile, "/") != -1 {
err := os.MkdirAll(filepath.Dir(configFile), 0700)
if err != nil {
fmt.Printf("Could not create directory: %v", err)
os.Exit(1)
}
}
err := ioutil.WriteFile(configFile, []byte(contents), 0600)
if err != nil {
fmt.Printf("Could not write config file: %v", err)
os.Exit(1)
}
fmt.Printf("Config file written to %v.\n", configFile)
}
}
func ParseFlags(args []string) {
var flags = flag.NewFlagSet("main", flag.ExitOnError)
var printHelp = false
// Declare flags
flags.BoolVar(&printHelp, "help", false, "Print this help message.")
flags.String("listen_addr", app.GetString("ListenAddr"), "Listen address. (0.0.0.0:0 means any interface, any port)")
flags.String("seed_node", app.GetString("SeedNode"), "Address of seed node")
flags.String("rpc_http_listen_addr", app.GetString("RPC.HTTP.ListenAddr"), "RPC listen address. Port required")
flags.Parse(args)
if printHelp {
flags.PrintDefaults()
os.Exit(0)
}
// Merge parsed flag values onto app.
app.BindPFlag("ListenAddr", flags.Lookup("listen_addr"))
app.BindPFlag("SeedNode", flags.Lookup("seed_node"))
app.BindPFlag("RPC.HTTP.ListenAddr", flags.Lookup("rpc_http_listen_addr"))
// Confused?
//app.Debug()
}