forked from cerc-io/plugeth
66 lines
1.3 KiB
Go
66 lines
1.3 KiB
Go
//go:generate go run defaults.go default.json defs.go
|
|
|
|
package main //build !none
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"strings"
|
|
)
|
|
|
|
func fatal(str string, v ...interface{}) {
|
|
fmt.Fprintf(os.Stderr, str, v...)
|
|
os.Exit(1)
|
|
}
|
|
|
|
type setting struct {
|
|
Value int64 `json:"v"`
|
|
Comment string `json:"d"`
|
|
}
|
|
|
|
func main() {
|
|
if len(os.Args) < 3 {
|
|
fatal("usage %s <input> <output>\n", os.Args[0])
|
|
}
|
|
|
|
content, err := ioutil.ReadFile(os.Args[1])
|
|
if err != nil {
|
|
fatal("error reading file %v\n", err)
|
|
}
|
|
|
|
m := make(map[string]setting)
|
|
json.Unmarshal(content, &m)
|
|
|
|
filepath := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "params", os.Args[2])
|
|
output, err := os.OpenFile(filepath, os.O_RDWR|os.O_CREATE, os.ModePerm /*0777*/)
|
|
if err != nil {
|
|
fatal("error opening file for writing %v\n", err)
|
|
}
|
|
|
|
output.WriteString(`// DO NOT EDIT!!!
|
|
// AUTOGENERATED FROM generators/defaults.go
|
|
|
|
package params
|
|
|
|
import "math/big"
|
|
|
|
var (
|
|
`)
|
|
|
|
for name, setting := range m {
|
|
output.WriteString(fmt.Sprintf("%s=big.NewInt(%d) // %s\n", strings.Title(name), setting.Value, setting.Comment))
|
|
}
|
|
|
|
output.WriteString(")\n")
|
|
output.Close()
|
|
|
|
cmd := exec.Command("gofmt", "-w", filepath)
|
|
if err := cmd.Run(); err != nil {
|
|
fatal("gofmt failed: %v\n", err)
|
|
}
|
|
}
|