blob: 54d9a4b5230fc38e72cb7260a977311aa9ef48e1 [file] [log] [blame]
// Copyright 2022 The Wuffs Authors.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//go:build ignore
// +build ignore
package main
// litonlylzma.go converts to and from the Literal Only LZMA compressed file
// format, a subset of the LZMA compressed file format (e.g. as spoken by
// /usr/bin/lzma on a Debian system).
//
// Usage:
// go run litonlylzma.go -encode < foo.txt > foo.txt.litonlylzma
// go run litonlylzma.go -decode < foo.txt.litonlylzma
import (
"flag"
"fmt"
"io"
"os"
"github.com/google/wuffs/lib/litonlylzma"
)
var (
decode = flag.Bool("decode", false, "decode from LZMA")
encode = flag.Bool("encode", false, "encode to LZMA")
)
func main() {
if err := main1(); err != nil {
os.Stderr.WriteString(err.Error() + "\n")
os.Exit(1)
}
}
func main1() error {
flag.Parse()
if *decode == *encode {
return fmt.Errorf("exactly one of -decode and -encode needed")
}
src, err := io.ReadAll(os.Stdin)
if err != nil {
return err
}
dst, err := []byte(nil), error(nil)
if *decode {
dst, _, err = litonlylzma.FileFormatLZMA.Decode(nil, src)
} else {
dst, err = litonlylzma.FileFormatLZMA.Encode(nil, src)
}
if err != nil {
return err
}
_, err = os.Stdout.Write(dst)
return err
}