//Returns the lzma-decompressed bytes
func shortdecompress(shrunk []byte) []byte {
b := bytes.NewBuffer(shrunk)
r := lzma.NewReader(b)
var bb bytes.Buffer
io.Copy(&bb, r)
r.Close()
return bb.Bytes()
}
func ReadInfoFile(file string, out chan<- InfoRecord) error {
if _, err := os.Stat(file); os.IsNotExist(err) {
return nil
}
f, err := os.Open(file)
if err != nil {
return err
}
defer f.Close()
lz := lzma.NewReader(f)
defer lz.Close()
buf, err := ioutil.ReadAll(lz)
if err != nil {
return err
}
var wg sync.WaitGroup
sz := len(buf)
for i := 0; i < sz; i += chankSize {
to := i + chankSize
if to > sz {
to = sz
}
wg.Add(1)
go func(f int, t int) {
defer wg.Done()
err = extractInfo(buf, f, t, out)
}(i, to)
}
wg.Wait()
return nil
}
func Decompress(in io.Reader) io.Reader {
return lzma.NewReader(in)
}