[FEATURE] Merge any pre-existing cava configuration into the initial mppcava configuration

[doctorfree]

MusicPlayerPlus includes an enhanced fork of the Cava spectrum visualizer. If the user has previously installed and configured Cava then merge any user customization of Cava into the mppcava configuration, preserving user preferences.

[doctorfree]

One approach with the Cava config would be to use crudini.py to perform a merge as the format of the Cava config file is INI:

/usr/share/musicplayerplus/scripts/crudini.py --merge $HOME/.config/mppcava/config < $HOME/.config/cava/config

Crudini does a very good job with merges. The difficulty with this approach is we do not want to overwrite some of the mppcava configuration. The method and source configuration parameters need to conform to MusicPlayerPlus expectations. For example, if method = fifo then source = $HOME/.config/mpd/mpd.fifo

[doctorfree]

Initial crack at merging previously set cava configuration with mppcava configuration:

#!/bin/bash
#
# set_prev_cava.sh - merge previously configured cava user preferences
#                       with $HOME/.config/mppcava/config

USERCONF="${HOME}/.config"
CAV_USER_CONF="${USERCONF}/cava/config"
MPP_USER_CONF="${USERCONF}/mppcava/config"
SCPTDIR="/usr/share/musicplayerplus/scripts"

if [ -x "${SCPTDIR}/crudini.py" ]
then
  CRUDINI="${SCPTDIR}/crudini.py"
else
  have_crudini=`type -p crudini`
  if [ "${have_crudini}" ]
  then
    CRUDINI=crudini
  else
    CRUDINI=
  fi
fi

[ -f "${CAV_USER_CONF}" ] && [ -f "${MPP_USER_CONF}" ] && [ "${CRUDINI}" ] && {
  mth=`${CRUDINI} --get ${MPP_USER_CONF} input method`
  src=`${CRUDINI} --get ${MPP_USER_CONF} input source`
  ${CRUDINI} --merge ${MPP_USER_CONF} < ${CAV_USER_CONF}
  ${CRUDINI} --set ${MPP_USER_CONF} input method ${mth}
  ${CRUDINI} --set ${MPP_USER_CONF} input source ${src}
}

exit 0

[doctorfree]

This seems to work. Closing.