Liquidsoap 2.1.3

This is the third and, hopefully, last bug fix release for the 2.1.x release branch!

Overall, this release cycle was thankfully pretty calm, hence the more than two months since the previous one. The release contains a couple of new features that may also be useful such as being able to select or list portaudio devices and some enhancements in input.harbor dynamic capabilities.

Anyone on one of the 2.1.x releases should be able to upgrade safely to this version.

2.1.3 (2022-11-04)

New:

• Added time.string.
• Added error.on_error to report any error raised during the
  script's execution. Enhanced reported error positions (#2712)
• Added device_id and latency options to input.portaudio
  and output.portaudio to be able to choose the requested
  device. Use liquidsoap --list-portaudio-devices to see the
  list of devices (#2733)
• Added disconnect method to input.harbor, making it possible
  to disconnect a source client programmatically, including when
  a new client is trying to connect.

Changed:

• Send data in-memory in http.{post,put}.file when input data
  is already in memory. This allows to use plain Content-Length
  instead of chunked transfer encoding in these case, though
  libcurl seems to always prefer chunked encoding for put
  requests.
• Better error message when an encoder is not available on windows
  (#2665)
• Create output directory in HLS outputs when it does not exist
  using newly introduced perms permission argument (#2725)
• Removed restart_on_error argument on output.url and added
  restart_delay which implements a delayed restart. Added
  on_error argument to be notified of errors (#2731)
• Changed default encoding parameter in string.{quote, escape}
  to be null. Fallback to "ascii" encoding when no encoding is
  specified and "utf8" fails. This prevents unexpected script
  failures but might not be backward-compatible if you used a
  custom escape_char or special_char function (#2738)

Fixed:

• Enhanced methods typing support (#2659)
• Add support for song metadata (mapped to title) and url (mapped to
  metadata_url) in input.harbor (#2676)
• Fixed blank.* operator types.
• Fixed request metadata escaping (#2732)
• Fixed input.external.rawadudio mono input (#2742)
• Fixed http response body on redirect (#2758)