#!/bin/sh

post_install() {
  echo ":: The default setup will create a pipe /tmp/snapfifo."
  echo "   Due to recent changes in systemd, pipes in /tmp are by default only"
  echo "   writable by the owning user (here: sysuser snapserver)."
  echo "   This is controlled by systclt fs.protected_fifos."
  echo "   A possible workaround is to disable the sysctl feature by running:"
  echo "     # sysctl fs.protected_fifos=0"
  echo ":: Snapcast now has a built-in snapweb control client which is enabled"
  echo "   by default on a new setup.  This functionality enables a webserver"
  echo "   on port 1780.  This can be controlled by the doc_root variable in"
  echo "   /etc/snapserver.conf."
}

post_upgrade() {
  echo ":: The default setup will create a pipe /tmp/snapfifo."
  echo "   Due to recent changes in systemd, pipes in /tmp are by default only"
  echo "   writable by the owning user (here: sysuser snapserver)."
  echo "   This is controlled by systclt fs.protected_fifos."
  echo "   A possible workaround is to disable the sysctl feature by running:"
  echo "     # sysctl fs.protected_fifos=0"
  echo ":: Snapcast now has a built-in snapweb control client which is enabled"
  echo "   by default on a new setup.  This functionality enables a webserver"
  echo "   on port 1780.  This can be controlled by the doc_root variable in" 
  echo "   /etc/snapserver.conf."

  # return if old package version greater 10.4...
  (( $(vercmp $2 '0.15.0') > 0 )) && return
  
  echo ":: The snapserver configuration layout has changed!"
  echo "   -> Most of the configuration has moved from /etc/default/snapserver"
  echo "      to /etc/snapserver.conf."
}