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/*
* Copyright 2011 Branimir Karadzic. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"os"
"runtime/pprof"
lz4 "github.com/bkaradzic/go-lz4"
)
var (
decompress = flag.Bool("d", false, "decompress")
)
func main() {
var optCPUProfile = flag.String("cpuprofile", "", "profile")
flag.Parse()
if *optCPUProfile != "" {
f, err := os.Create(*optCPUProfile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
args := flag.Args()
var data []byte
if len(args) < 2 {
fmt.Print("Usage: lz4 [-d] <input> <output>\n")
os.Exit(1)
}
input, err := os.OpenFile(args[0], os.O_RDONLY, 0644)
if err != nil {
fmt.Printf("Failed to open input file %s\n", args[0])
os.Exit(1)
}
defer input.Close()
if *decompress {
data, _ = ioutil.ReadAll(input)
data, err = lz4.Decode(nil, data)
if err != nil {
fmt.Println("Failed to decode:", err)
return
}
} else {
data, _ = ioutil.ReadAll(input)
data, err = lz4.Encode(nil, data)
if err != nil {
fmt.Println("Failed to encode:", err)
return
}
}
err = ioutil.WriteFile(args[1], data, 0644)
if err != nil {
fmt.Printf("Failed to open output file %s\n", args[1])
os.Exit(1)
}
}
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