179 lines
4.7 KiB
Bash
Executable File
179 lines
4.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Download audio using youtube-dl, passing
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# a specific set of options specified by the user
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#
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# Copyright (C) 2018 Eric Torres
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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printHelp() {
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cat << EOF
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Usage: dlaudio [options] [URLs]
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Options:
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-b, --batch-dl provide the links from a text file
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-f, --format the format to use (default: flac)
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-h, --help print this help page
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-n, --filename the name of the downloaded file (without the extension)
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EOF
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}
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declare -a opts
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batchfile=
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filename=
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format=
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# error messages
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readonly nobatchfile_error="Error: no batch file entered"
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readonly nofilename_error="Error: no filename entered"
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readonly noformat_error="Error: no format entered"
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while true; do
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case "${1}" in
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"-b"|"--batch-dl")
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batchfile="${2}"
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case "${batchfile}" in
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"")
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echo "${nobatchfile_error}" >&2
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exit 1
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;;
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-*)
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echo "Not a file: ${batchfile}"
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exit 1
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;;
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*)
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[[ ! -f "${batchfile}" ]] && echo "Not a file: ${batchfile}" >&2 && exit 1
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;;
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esac
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shift 2
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continue
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;;
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--batchfile=*)
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batchfile="${2#*=}"
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case "${batchfile}" in
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"")
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echo "${nobatchfile_error}" >&2
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exit 1
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;;
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-*)
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echo "Not a file: ${batchfile}" >&2
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exit 1
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;;
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*)
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[[ ! -f "${batchfile}" ]] && echo "Not a file: ${batchfile}" && exit 1
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;;
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esac
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shift
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continue
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;;
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"-f"|"--format")
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format="${2}"
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case "${format}" in
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"")
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echo "No format entered" >&2
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exit 1
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;;
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-*)
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echo "Not a format: ${format}"
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exit 1
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;;
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esac
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shift 2
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continue
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;;
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--format=*)
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format="${1#*=}"
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case "${format}" in
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"")
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echo "${noformat_error}" >&2
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exit 1
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;;
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-*)
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echo "Not a format: ${format}" >&2
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exit 1
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;;
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esac
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shift
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continue
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;;
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"-h"|"--help")
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# print help page and exit
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printHelp
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exit
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;;
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"-n"|"--filename")
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filename="${2}"
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case "${filename}" in
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"")
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echo "${nofilename_error}" >&2
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exit 1
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;;
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-*)
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echo "Not a filename: ${filename}" >&2
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exit 1
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;;
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esac
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shift 2
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continue
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;;
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--filename=*)
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filename="${2#*=}"
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case "${filename}" in
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"")
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echo "${nofilename_error}" >&2
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exit 1
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;;
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-*)
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echo "Not a filename: ${filename}" >&2
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exit 1
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;;
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esac
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shift
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continue
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;;
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"--")
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shift
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break
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;;
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-?*)
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echo "Error, not an option: ${1}" >&2
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exit 1
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;;
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*)
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break
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esac
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done
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[[ -z "${*}" ]] && echo "No input given" >&2 && exit 1
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# default options
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opts+=("--no-part")
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opts+=("--no-continue")
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opts+=("--extract-audio")
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opts+=("--audio-format=${format:-flac}")
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# set filename to either what the user set or its original title
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if [[ "${filename}" ]]; then
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opts+=("--output=${HOME}/Music/${filename}.%(ext)s")
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else
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opts+=("--output=${HOME}/Music/%(title)s.%(ext)s")
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fi
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if [[ "${batchfile}" ]]; then
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youtube-dl "${opts[@]}" --batch-file="${batchfile}"
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else
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youtube-dl "${opts[@]}" "${@}"
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fi
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