func parsePackageDefinition(reader *tar.Reader, pkg *Package, details *Details) error {
cin := make(chan int)
cout := make(chan *Token)
cerr := make(chan error)
cdone := make(chan bool)
go parseSimpleSexp(cin, cout, cdone)
go readPackageDefinition(cout, cerr, pkg, details)
bytes := make([]byte, 256)
for {
n, err := reader.Read(bytes)
if err == io.EOF {
cdone <- true
break
}
if err != nil {
cdone <- true
return err
}
for _, b := range bytes[:n] {
select {
case err = <-cerr:
return err
default:
cin <- int(b)
}
}
}
return <-cerr
}
func getTarContent(tr *tar.Reader, name string) []byte {
for {
hdr, err := tr.Next()
if err == io.EOF {
break
} else if err != nil {
panic(err)
}
if hdr.Name == name {
ret := make([]byte, hdr.Size)
n, err := tr.Read(ret)
if int64(n) != hdr.Size {
panic("Size mismatch")
}
if err != nil {
panic(err)
}
return ret
}
}
panic("File not found!")
}