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