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177 lines
5.6 KiB
Bash
177 lines
5.6 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-07-24 19:05:25 +0100 (Fri, 24 Jul 2020)
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#
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# https://github.com/harisekhon/spotify-playlists
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090
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. "$srcdir/lib/spotify.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Deletes Spotify URIs from a given playlist
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Playlist must be specified as the first argument and can be either a Spotify playlist ID or a full playlist name (see spotify_playlists.sh)
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Can take file(s) with URIs as arguments or read from standard input for chaining with other tools
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Input formats can be IDs or any standard Spotify URI format, eg:
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spotify:track:<ID>
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https://open.spotify.com/track/<ID>
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<ID>
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or can be prefixed with track position in the playlist (zero-indexed) if you only want to delete a single instance of the song (useful when removing only duplicates), separated by either space:
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<track_position> spotify:track:<ID>
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<track_position> https://open.spotify.com/track/<ID>
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<track_position> <ID>
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or a colon:
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<track_position>:spotify:track:<ID>
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<track_position>:https://open.spotify.com/track/<ID>
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<track_position>:<ID>
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Useful for chaining with other tools (eg. spotify_playlist_tracks_uri.sh / spotify_search_uri.sh in this repo, or
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tracks_already_in_playlists.sh in the HariSekhon/Spotify-Playlists github repo) or loading from saved spotify format
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playlists (eg. TODO playlists dumped by spotify_backup*.sh / spotify_playlist_tracks_uri.sh)
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$usage_playlist_help
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$usage_auth_help
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="<playlist_name_or_id> [<file1> <file2> ...]"
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help_usage "$@"
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min_args 1 "$@"
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playlist="$1"
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shift || :
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# requires authorized token
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export SPOTIFY_PRIVATE=1
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spotify_token
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# this script returns the ID if it's already in the correct format, otherwise queries and returns the playlist ID for the playlist
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playlist_id="$(SPOTIFY_PLAYLIST_EXACT_MATCH=1 "$srcdir/spotify_playlist_name_to_id.sh" "$playlist")"
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playlist_name="$("$srcdir/spotify_playlist_id_to_name.sh" "$playlist_id")"
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# playlist ID obtained from 'spotify_playlists.sh'
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url_path="/v1/playlists/$playlist_id/tracks"
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count=0
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snapshot_id=""
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# Takes track IDs or track position:ID for more specific deletes
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delete_from_playlist(){
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if [ $# -lt 1 ]; then
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echo "Error: no IDs passed to delete_from_playlist()" >&2
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exit 1
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fi
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local uri_array=""
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local track_position
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local id
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for id in "$@"; do
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if [[ "$id" =~ ^[[:digit:]]+: ]]; then
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# extract first column for track position
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track_position="${id%%:*}"
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# keep zero-indexed for compatability with other tools
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#((track_position-=1)) # convert one-indexed (eg. from grep) to zero-indexed for Spotify API
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id="${id#*:}"
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# requires explicit track URI type since could also be episodes added to playlist
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uri_array+="{\"uri\": \"spotify:track:$id\", \"positions\": [$track_position]}, "
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else
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# requires explicit track URI type since could also be episodes added to playlist
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uri_array+="{\"uri\": \"spotify:track:$id\"}, "
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fi
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done
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uri_array="${uri_array%, }"
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timestamp "removing ${#@} tracks from playlist '$playlist_name'"
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json_payload='{"tracks": '"[$uri_array]"
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#if [ -n "$snapshot_id" ] && [ "$snapshot_id" != null ]; then
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# let it send null and fail as we should never get back null
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if [ -n "$snapshot_id" ]; then
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json_payload+=", \"snapshot_id\": \"$snapshot_id\""
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fi
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json_payload+="}"
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local output
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output="$("$srcdir/spotify_api.sh" "$url_path" -X DELETE -d "$json_payload")"
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die_if_error_field "$output"
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((count+=${#@}))
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snapshot_id="$(jq -r '.snapshot_id' <<< "$output")"
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if is_blank "$snapshot_id"; then
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die "Spotify API returned blank snapshot id, please investigate with DEBUG=1 mode"
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fi
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if [ "$snapshot_id" = null ]; then
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die "Spotify API returned snapshot_id '$snapshot_id', please investigate with DEBUG=1 mode"
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fi
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}
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delete_URIs_from_file(){
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declare -a ids
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ids=()
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while read -r track_uri; do
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track_position=""
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if [[ "$track_uri" =~ ^[[:digit:]]+[:[:space:]]+ ]]; then
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# extract first column for track position
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track_position="${track_uri%%[:[:space:]]*}"
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# remove first column of track position
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track_uri="${track_uri#*[:[:space:]]}"
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# strip any remaining leading whitespace without subshelling to sed
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track_uri="${track_uri#"${track_uri%%[!:[:space:]]*}"}"
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fi
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if is_blank "$track_uri"; then
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continue
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fi
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if is_local_uri "$track_uri"; then
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continue
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fi
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id="$(validate_spotify_uri "$track_uri")"
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if [ -n "$track_position" ]; then
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ids+=("$track_position:$id")
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else
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ids+=("$id")
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fi
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if [ "${#ids[@]}" -ge 100 ]; then
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delete_from_playlist "${ids[@]}"
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ids=()
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fi
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done < "$filename"
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if [ "${#ids[@]}" -gt 0 ]; then
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delete_from_playlist "${ids[@]}"
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fi
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}
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for filename in "${@:-/dev/stdin}"; do
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delete_URIs_from_file "$filename"
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done
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timestamp "$count tracks deleted from playlist '$playlist_name'"
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