| // 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 |
| } |