New multimedia player controller script

Expect to be able to manage audio and video player.
Start mpd if no music player is running
Send command to MPV player (if running with IPC socket)
Send command to kodi player
Send command to mpd
This commit is contained in:
Jeremy Gardais 2022-05-22 17:07:24 +02:00
parent 2b1316d275
commit d08a4e2bcf
Signed by: jegardai
GPG Key ID: E759BAA22501AF32
1 changed files with 250 additions and 0 deletions

250
multimedia.controller.sh Executable file
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#!/bin/sh
#
# Purpose {{{
# This script will try to send multimedia controls to correct player
# 1. Send selected command to MPV if running
# 2. Send selected command to Kodi if running
# 3. Send selected command to MPD if running
# 4. Start mpd if nothing runs
# …
#
# 2022-05-22
# }}}
# Vars {{{
readonly PROGNAME=$(basename "${0}")
readonly PROGDIR=$(readlink -m $(dirname "${0}"))
readonly ARGS="${*}"
readonly NBARGS="${#}"
[ -z "${DEBUG}" ] && DEBUG=1
## Export DEBUG for sub-script
export DEBUG
## Default values for some vars
readonly MPV_PROC_REGEXP="mpv.*--input-ipc-server"
readonly KODI_PROC_REGEXP="kodi.bin"
readonly MPD_PROC_REGEXP="mpd.*systemd"
readonly MULTIMEDIA_COMMAND_DEFAULT="toggle"
## Colors
readonly PURPLE='\033[1;35m'
readonly RED='\033[0;31m'
readonly RESET='\033[0m'
readonly COLOR_DEBUG="${PURPLE}"
# }}}
usage() { # {{{
cat <<- HELP
usage: $PROGNAME [-c|-d|-h]
This script will try to send multimedia controls to correct player
1. Send selected command to MPV if running
* Latest instance only with an IPC socket.
2. Send selected command to Kodi if running
3. Send selected command to MPD if running
4. Start mpd if nothing runs
EXAMPLES:
- Send TOGGLE command to the first media player running
${PROGNAME} --command toggle
OPTIONS:
-c,--command
Send some command to running media player (MPV, Kodi, MPD,…).
-d,--debug
Enable debug messages.
-h,--help
Print this help message.
HELP
}
# }}}
debug_message() { # {{{
local_debug_message="${1}"
## Print message if DEBUG is enable (=0)
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG ${PROGNAME}: ${local_debug_message}"
unset local_debug_message
return 0
}
# }}}
error_message() { # {{{
local_error_message="${1}"
local_error_code="${2}"
## Print message
printf '%b\n' "ERROR ${PROGNAME}: ${RED}${local_error_message}${RESET}"
exit "${local_error_code:=66}"
}
# }}}
define_vars() { # {{{
## If MULTIMEDIA_COMMAND wasn't defined (argument) {{{
if [ -z "${MULTIMEDIA_COMMAND}" ]; then
## Use default value
readonly MULTIMEDIA_COMMAND="${MULTIMEDIA_COMMAND_DEFAULT}"
fi
## }}}
}
# }}}
is_proc_absent() { # {{{
local_proc_pattern="${1}"
## Proc is absent by default
return_proc_absent="0"
local_count_proc_pattern="$(pgrep -f -- "${local_proc_pattern}" | wc -l)"
case "${local_count_proc_pattern}" in
0 ) ## No procs related to this pattern are running
return_proc_absent="0"
;;
* ) ## At least one proc seems running
return_proc_absent="1"
;;
esac
## Simple debug message to valid current variables
debug_message "is_proc_absent \
procs running (with the pattern: ${RED}${local_proc_pattern}${COLOR_DEBUG}) on the current host: ${RED}${local_count_proc_pattern}${COLOR_DEBUG}."
return "${return_proc_absent}"
}
# }}}
is_proc_running() { # {{{
local_proc_pattern="${1}"
local_count_proc_pattern="$(pgrep -f -- "${local_proc_pattern}" | wc -l)"
case "${local_count_proc_pattern}" in
0 ) ## No procs related to this pattern are running
return_proc_running="1"
;;
* ) ## At least one proc seems running
return_proc_running="0"
;;
esac
## Simple debug message to valid current variables
debug_message "is_proc_running \
procs running (with the pattern: ${RED}${local_proc_pattern}${COLOR_DEBUG}) on the current host: ${RED}${local_count_proc_pattern}${COLOR_DEBUG}."
return "${return_proc_running}"
}
# }}}
main() { # {{{
## Define all vars
define_vars
## If MPV with an IPS-socket is running {{{
### AND Send multimedia command to MPV sub-script
### AND exit 0
is_proc_running "${MPV_PROC_REGEXP}" \
&& debug_message "Try to send ${RED}${MULTIMEDIA_COMMAND}${COLOR_DEBUG} to ${RED}MPV${COLOR_DEBUG}." \
&& mpv.controller.sh --command "${MULTIMEDIA_COMMAND}" \
&& exit 0
## }}}
## If kodi is running {{{
### AND Send multimedia command to Kodi sub-script
### AND exit 0
is_proc_running "${KODI_PROC_REGEXP}" \
&& debug_message "Try to send ${RED}${MULTIMEDIA_COMMAND}${COLOR_DEBUG} to ${RED}Kodi${COLOR_DEBUG}." \
&& kodi.controller.sh --command "${MULTIMEDIA_COMMAND}" \
&& exit 0
## }}}
## If mpd is running {{{
### AND Send multimedia command to MPD sub-script
### AND exit 0
is_proc_running "${MPD_PROC_REGEXP}" \
&& debug_message "Try to send ${RED}${MULTIMEDIA_COMMAND}${COLOR_DEBUG} to ${RED}MPD${COLOR_DEBUG}." \
&& mpd.controller.sh --command "${MULTIMEDIA_COMMAND}" \
&& exit 0
## }}}
## If mpd is not running {{{
### AND Start it with user's systemd
### AND exit 0
is_proc_absent "${MPD_PROC_REGEXP}" \
&& debug_message "Start default player ${RED}mpd with systemd${COLOR_DEBUG}." \
&& systemctl --user start mpd.service \
&& exit 0
## }}}
}
# }}}
# Manage arguments # {{{
# This code can't be in a function due to argument management
if [ ! "${NBARGS}" -eq "0" ]; then
manage_arg="0"
## If the first argument is not an option
if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
then
## Use it as default multimedia command
MULTIMEDIA_COMMAND="${1}"
fi
# Parse all options (start with a "-") one by one
while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
case "${1}" in
-c|--command ) ## Define MULTIMEDIA_COMMAND
## Move to the next argument
shift
## Define var
readonly MULTIMEDIA_COMMAND="${1}"
;;
-d|--debug ) ## debug
DEBUG=0
;;
-h|--help ) ## help
usage
## Exit after help informations
exit 0
;;
* ) ## unknow option
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
printf '%b\n' "---"
usage
exit 1
;;
esac
debug_message "Arguments management \
${RED}${1}${COLOR_DEBUG} option|command managed."
## Move to the next argument
shift
manage_arg=$((manage_arg+1))
done
debug_message "Arguments management \
${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
else
debug_message "Arguments management \
No arguments/options to manage."
fi
# }}}
main
exit 255