radio.sh


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#!/bin/sh
# vim: shiftwidth=4 tabstop=4 noexpandtab

# constants
data_repo="${HOME}/.local/share/mydata"
data_rel="tables/radio.tsv"
data_abs="${data_repo}/${data_rel}"

# read station from command line arguments
station="$1"

# set a handler for keyboard interrupts
trap 'exit 0' 2 15

# check dependency and warn user if necessary
if ! command -v mpv > /dev/null 2>&1
then
	echo 'You have to install mpv (e.g. sudo pacman -S mpv mpv-mpris)'
	exit 1
fi

# check if data file exists
if ! [ -f "${data_abs}" ]
then
	echo "Data file '""${data_abs}""' not found."
	exit 1
fi

# translate sender name to URL
address="$(grep "${station}" "${data_abs}" | awk -F '\t' '{print $2}')"
if [ "${address}" = "" ]
then
	echo "Could not translate station ${station} to URL."
	exit 1
fi

# stream from address
echo "Streaming ${station} from ${address}."
mpv "${address}"