mpd-state-wrapper.sh

   1 #!/bin/sh
   2 ## Wrapper for mpd-state to make it behave like state-utils.
   3 ## Copyright (c) 2005 by Michal Nazareicz <mina86@mina86.com>
   4 ##
   5 ## This program is free software; you can redistribute it and/or modify
   6 ## it under the terms of the GNU General Public License as published by
   7 ## the Free Software Foundation; either version 3 of the License, or
   8 ## (at your option) any later version.
   9 ##
  10 ## This program is distributed in the hope that it will be useful,
  11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ## GNU General Public License for more details.
  14 ##
  15 ## You should have received a copy of the GNU General Public License
  16 ## along with this program; if not, see <http://www.gnu.org/licenses/>.
  17 ##
  18 ## This is part of Tiny Applications Collection
  19 ##   -> http://tinyapps.sourceforge.net/
  20 ##
  21
  22 #
  23 # To install copy this file to (eg.) /usr/local/bin and make the
  24 # fallowing symlinks: state-save, state-restore, state-sync and
  25 # state-amend all pointing to this wrapper.
  26 #
  27
  28 if [ "$1" = "--help" ]; then
  29         cat<<EOF
  30 usage: state-save    [ <state-name> ]
  31        state-restore [ <state-name> ]
  32        state-sync    [ <mpd-host> [ <mpd-port> ] ]
  33        state-amend   [ <state-name> ]
  34 state-save saves MPD state to a file.
  35 state-restores resotres saved state to MPD.
  36 state-sync tries to sync two MPD servers as close as possible.
  37 state-amend adds playlist from specified state to MPD.
  38 EOF
  39         exit 0;
  40 fi
  41
  42
  43 ARG0=${0##*/}
  44 SHIFTED=
  45 while true; do case "$ARG0" in
  46         (state-save|save)
  47         mkdir -p ~/.mpd_states && mpd-state >~/.mpd_states/"${1-default}"
  48         exit $?
  49         ;;
  50
  51         (state-restore|restore)
  52         if [ -f ~/".mpd_states/${1-default}" ]; then
  53                 mpd-state -r <~/.mpd_sates/"${1-default}"
  54                 exit $?
  55         else
  56                 # shellcheck disable=SC2088
  57                 echo File "~/.mpd_states/${1-default}" does not exist >&2
  58                 exit 1
  59         fi
  60         ;;
  61
  62         (state-sync|sync)
  63         mpd-state | mpd-state -r "${1-localhost}" "${2-6600}"
  64         exit $?
  65         ;;
  66
  67         (state-amend|amend)
  68         if [ -f ~/".mpd_states/${1-default}" ]; then
  69                 mpd-state -raP <~/.mpd_sates/"${1-default}"
  70                 exit $?
  71         else
  72                 # shellcheck disable=SC2088
  73                 echo File "~/.mpd_states/${1-default}" does not exist >&2
  74                 exit 1
  75         fi
  76         ;;
  77
  78         (*)
  79         if [ -z "$SHIFTED" ] && [ $# -ne 0 ]; then
  80                 SHIFTED=y
  81                 ARG0="$1"
  82                 shift
  83         else
  84                 echo 'This script should be run as one of:'
  85                 echo '  state-save, state-restore, state-sync or state-amend'
  86                 echo 'or with one of those strings as firt argument optionaly w/o state- prefix'
  87                 exit 1
  88         fi
  89         ;;
  90 esac; done