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Bandcamp collection downloader

A command-line tool written in Kotlin to automatically download all albums of a Bandcamp collection.

Usage: <main class> [-h] [-c=<pathToCookiesFile>] [-d=<pathToDownloadFolder>] [-f=<audioFormat>] <bandcampUser>
      <bandcampUser>   The bandcamp user account from which all albums must be downloaded.
  -c, --cookies-file=<pathToCookiesFile>
                       A JSON file with valid bandcamp credential cookies.
                       "Cookie Quick Manager" can be used to obtain this file after logging into bandcamp.
                       (visit https://addons.mozilla.org/en-US/firefox/addon/cookie-quick-manager/).
                       If no cookies file is provided, cookies from the local Firefox installation are used (Linux only).
  -d, --download-folder=<pathToDownloadFolder>
                       The folder in which downloaded albums must be extracted.
                       The following structure is considered: <pathToDownloadFolder>/<artist>/<year> - <album>.
                       (default: current folder)
  -f, --audio-format=<audioFormat>
                       The chosen audio format of the files to download (default: vorbis).
                       Possible values: flac, wav, aac-hi, mp3-320, aiff-lossless, vorbis, mp3-v0, alac.
  -h, --help           Display this help message.

Bandcamp authentication

This tool does not manage authentication with Bandcamp servers, as they require a valid token from Google Captcha. Hence, authentication must first be achieved using Firefox, then Bandcamp cookies must be exported in JSON using the Firefox Addon Cookie Quick Manager. This JSON file can then be used using the mandatory parameter --cookies-file:

Installation

After each commit, the continuous integration (CI) builds a new standalone (ie. that includes all dependencies) executable jar that can be used as is. The last produced jar can always be found at this link.

Usage

Example of command:

$ java -jar bandcamp-collection-downloader.jar --cookies-file=cookies.json --download-folder=~/Music myBandcampIdentifier

This will download all albums ever bought by the Bandcamp account myBandcampIdentifier, and extract the music in the folder ~/Music, The tool always creates one folder per artist, each containing one folder per album (with the format <year> - <album name>).

Compiling

Compilation is handled by Gradle. A task fatJar is available to build a standalone executable jar with all dependencies:

$ git clone https://framagit.org/Gwendal/bandcamp-collection-downloader.git
$ cd bandcamp-collection-downloader
$ gradle fatjar

The resulting binary can then be found in build/libs/bandcamp-collection-downloader.jar.

Dependencies

This tool relies on the following libraries:

jsoup to get and parse HTML,
zt-zip to unzip downloaded albums,
picocli to provide a fancy CLI,
Gson to parse JSON.

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