get_process_lines in liquidsoap 1.3.0 - liquidsoap

Question

I've just updated Liquidsoap to 1.3.0 and now get_process_lines does not return anything.
def get_request() =
# Get the URI
lines = get_process_lines("curl http://localhost:3000/api/v1/liquidsoap/next/my-radio")
log("liquidsoap curl returns #{lines}")
uri = list.hd(default="",lines)
log("liquidsoap will try and play #{uri}")
# Create a request
request.create(uri)
end
I read on the CHANGELOG
- Moved get_process_lines and get_process_output to utils.liq, added optional env parameter
Does it mean I have to do something to use utils.liq in my script now ?
The full script is as follows
set("log.file",false)
set("log.stdout",true)
set("log.level",3)
def apply_metadata(m) =
title = m["title"]
artist = m["artist"]
log("Now playing: #{title} by #{artist}")
end
# Our custom request function
def get_request() =
# Get the URI
lines = get_process_lines("curl http://localhost:3000/api/v1/liquidsoap/next/my-radio")
log("liquidsoap curl returns #{lines}")
uri = list.hd(default="",lines)
log("liquidsoap will try and play #{uri}")
# Create a request
request.create(uri)
end
def my_safe(s) =
security = sine()
fallback(track_sensitive=false,[s,security])
end
s = request.dynamic(id="s",get_request)
s = on_metadata(apply_metadata,s)
s = crossfade(s)
s = my_safe(s)
# We output the stream to an icecast
# server, in ogg/vorbis format.
log("liquidsoap starting")
output.icecast(
%mp3(id3v2=true,bitrate=128,samplerate=44100),
host = "localhost",
port = 8000,
password = "PASSWORD",
mount = "myradio",
genre="various",
url="http://www.myradio.fr",
description="My Radio",
s
)
Of course the API is working
$ curl http://localhost:3000/api/v1/liquidsoap/next/my-radio
annotate:title="Chamakay",artist="Blood Orange",album="Cupid Deluxe":http://localhost/stream/3.mp3
A more simple example :
lines = get_process_lines("echo hi")
log("lines = #{lines}")
line = list.hd(default="",lines)
log("line = #{line}")
returns the following logs
2017/05/05 15:24:42 [lang:3] lines = []
2017/05/05 15:24:42 [lang:3] line =
Many thanks in advance for your help !
geoffroy

Answer 1

The issue was fixed in liquidsoap 1.3.1
Fixed:
Fixed run_process, get_process_lines, get_process_output when compiling with OCaml <= 4.03 (#437, #439)
https://github.com/savonet/liquidsoap/blob/1.3.1/CHANGES#L12