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nbtnav.go
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nbtnav.go
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package main
import (
"bytes"
"errors"
"fmt"
. "github.com/logrusorgru/aurora"
"github.com/minero/minero-go/proto/nbt"
"io/ioutil"
"os"
"compress/gzip"
"compress/zlib"
)
func main() {
root := getCompoundFromArgs()
startRepl(root)
}
func getCompoundFromArgs() *nbt.Compound {
var root *nbt.Compound
if len(os.Args) == 2 {
if os.Args[1] == "--help" {
fmt.Println()
fmt.Println(Blue("\tnbtnav `filename`").Bold())
fmt.Println(Cyan("\t\tAllows you to navigate an NBT file"))
fmt.Println()
os.Exit(0)
}
fileBytes, err := ioutil.ReadFile(os.Args[1])
checkErr(err)
// Try uncompressed
reader := bytes.NewReader(fileBytes)
root, err = nbt.Read(reader)
if err == nil {
return root
}
// Try gzip
reader = bytes.NewReader(fileBytes)
gReader, err := gzip.NewReader(reader)
if err == nil {
defer gReader.Close()
root, err = nbt.Read(gReader)
if err == nil {
return root
}
}
// Try zlib
reader = bytes.NewReader(fileBytes)
zReader, err := zlib.NewReader(reader)
if err == nil {
defer zReader.Close()
root, err = nbt.Read(zReader)
if err == nil {
return root
}
}
checkErr(err)
} else {
checkErr(errors.New("wrong number of arguments, use --help for help"))
}
return root
}
func checkErr(err error) {
if err != nil {
fmt.Println("Error:", err)
os.Exit(-1)
}
}