I came across an issue with the following piece of code. I want to simply generate the md5 of a file. I want to use the Unix utility md5sum to spit out the hash so I can capture it.

The problem I'm having is that occasionally, maybe 1 in 10 times I run this script, I get an empty string from the buffer. There's some race condition here, but I don't know if it's from using the process or the buffer, or if it's a bug on Fan's side.

class Test
{
  Void main()
  {
    p := Process(["md5sum", "Test.fan"])
    buf := Buf()
    p.out = buf.out
    echo("Return code: " + p.run.join)
    buf.seek(0)
    str := buf.readAllStr
    echo(str)
    echo(str.size)
  }
}

@tatics

thanks for reporting that

can you try out this patch and see if that fixes your problem?

Off topic, but just in case you aren't aware of this: You can generate MD5 with sys::Buf#hmac.

You can also use sys::Buf.toDigest

fansh> "text".toBuf.toDigest("MD5").toHex
1cb251ec0d568de6a929b520c4aed8d1