feat(playout): enhance playout logging (#1495)

Some initial work on modernizing the playout app. This replace any custom logger or
logging based logger with the logging tools from libretime_shared.logging and loguru.

Removed all the thread/function assigned logger (self.logger = ...), as this makes it
part of the logic (passing logger though function args) as it should not.

Of a dedicated logger is required for a specific task, it should use
the create_task_logger function.

- refactor: remove dead code
- refactor: remove py2 specific fix
- feat: remove unused test command
- feat: setup shared cli and logging tools
- feat: replace logging with loguru
- feat: setup shared cli and logging tools for notify
- fix: warn method deos not exist
- feat: make cli setup the entrypoint
- fix: install shared modules globally in production
  use extra_requires to load local packages in dev environement
- feat: configure log path in systemd service
- feat: default behavior is to log to console only
- feat: create log dir during install
- chore: add comment
- fix: don't create useless dir in install
- fix: move notify logs to /var/log/libretime dir
- fix: update setup_logger attrs
- style: linting
- fix: replace verbosity flag with log-level flag
- feat: use shared logging tool in liquidsoap
- fix: pass logger down to api client
- feat: allow custom log_filepath in liquidsoap config
- chore: add pylintrc to playout
- refactor: fix pylint errors
- feat: set liquidsoap log filepath in systemd service
- fix: missing setup entrypoint update

BREAKING CHANGE: for playout and liquidsoap the default log file path changed to None
and will only log to the console when developing / testing. Unless you are running the
app as a systemd service (production) the default logs filepaths changed:
from "/var/log/airtime/pypo/pypo.log" to "/var/log/libretime/playout.log" and
from "/var/log/airtime/pypo-liquidsoap/ls_script.log" to "/var/log/libretime/liquidsoap.log"

BREAKING CHANGE: for playout-notify the default log file path changed
from "/var/log/airtime/pypo/notify.log" to "/var/log/libretime/playout-notify.log"

install

@@ -93,6 +93,12 @@ skip_postgres=0
 skip_rabbitmq=0
 default_value="Y"
 
+# <user:group> <path>
+mkdir_and_chown() {
+  mkdir -p "$2"
+  chown -R "$1" "$2"
+}
+
 function verbose() {
   if [[ ${_v} -eq 1 ]]; then
     echo -e "$@"
@@ -1027,12 +1033,17 @@ if [ ! -d /var/log/airtime ]; then
 
   verbose "\n * Creating /var/log/airtime"
   loudCmd "mkdir -p /var/log/airtime"
+  mkdir_and_chown "$web_user:$web_user" "/var/log/libretime"
 
   verbose "\n * Copying logrotate files..."
   loudCmd "cp ${AIRTIMEROOT}/legacy/build/airtime-php.logrotate /etc/logrotate.d/airtime-php"
   loudCmd "cp ${AIRTIMEROOT}/playout/install/logrotate/libretime-liquidsoap.conf /etc/logrotate.d/libretime-liquidsoap"
 fi
 
+verbose "\n * Installing Shared..."
+loudCmd "$pip_cmd install ${AIRTIMEROOT}/shared"
+verbose "...Done"
+
 verbose "\n * Installing API client..."
 loudCmd "$pip_cmd install ${AIRTIMEROOT}/api_client"
 verbose "...Done"