View Source Changelog

1.2.1 (2023-10-23)

  • use https (ssl) API endpoint to download scrobbles

1.2.0 (2023-09-27)

  • FacetsTransformer and facet (unique artists, albums, tracks) option in transform/2 for facets archiving
  • refactor: utils modules, dataframe and transformer config macros
  • Livebook:

1.1.1 (2023-09-15)

  • fix: Lastfm client bug that fetches page 1 instead of page 2 (for scrobbles > 200 per-day/on the day)
  • test: use ExMachina test data factories, update tests and replace static test fixtures

1.1.0 (2023-09-06)

  • year, date, overwrite options for LastfmArchive.sync/2
  • refactor: .cache hidden directory hosting cache files
  • refactor: split LastfmArchive.Cache into behaviour, client, server modules
  • refactor: extract date time logic from LastfmArchive.Utils into a separate module

1.0.0 (2023-09-01)

  • faceted archive: deriving multiple facets (archives) from the same file archive in support of analytics use cases
  • transforms data on a year-by-year basis by default, instead of loading the entire dataset
  • refactor: .metadata and derived directories hosting various metadata files and derived archives
  • analytics features migrated to coda

0.11.1 (2023-08-21)

  • most-frequent, play-once samples analytics for on-this-day Livebook page
  • fine-grained Transformer behaviour with default implementation and base transformer
  • DateTime, Date typed columns (instead of string) in transformed columnar archive
  • refactor: rename name column (of songs) in columnar storage to track

0.11.0 (2023-08-11)

  • new Analytics (generated callbacks) and LivebookAnalytics behaviours, with default implementations to separate the concerns of data frame analytics and Livebook rendering
  • analyics improvement:
    • includes various artists albums
    • more overall stats
    • stats per facet, e.g. number of albums, tracks per artist
  • resolve on-this-day analytics ranking issue
  • fix issue that caused subsequent columnar data transforms to stuck at previous (first) date of transform

0.10.4 (2023-08-03)

  • new Livebook to present analytics of all music played "on this day"

0.10.3 (2023-07-26)

  • additional data storage formats (Apache Arrow IPC) via Explorer.DataFrame i/o functions
  • read/2 all scrobbles, i.e. entire dataset into a lazy data frame by default
  • update and create new Livebook guides for archiving and columnar data transformation

0.10.2 (2023-07-18)

  • overwrite option for file archive transformer and transform/2
  • read/2 CSV and Parquet data (deprecate read_csv, read_parquet)
  • columns option to load only required CSV, Parquet columns into data frames
  • use Explorer DataFrame I/O functions to compress Parquet data
  • refactor: DataFrame I/O macro, generate tests for transform formats

0.10.1 (2023-07-07)

  • read/2 callback and implementation to return data in Explorer data frame
  • after_archive callback and implementation to transform data into TSV and Apache Parquet files
  • refactor Archive, FileArchive and new Scrobble and Metadata structs

0.10.0 (2023-06-07)

  • first interactive notebook - Livebook support
  • provide an archiving Livebook to initiate archiving jobs
  • playcounts heatmap and table for visualising archiving progress

0.9.3 (2023-06-02)

  • refactor: FileArchive - raw Lastfm scrobbles JSON format and better logging
  • default runtime configuration to better support Livebook usage

0.9.2 (2023-05-24)

  • info/0 returns total play count and first date of scrobble for default user
  • update Lastfm client to use Livebook system env vars (LB_LFM_USER and LB_LFM_API_KEY) along with config values
  • rename modules and tests in idiomatic namespaces
  • bump dependencies, Elixir / Erlang versions
  • Github Actions CI

0.9.1 (2021-05-05)

  • sync/2 handles request errors from API
  • caches errors during sync so that subsequent syncs or API requests can be made to archive the missing scrobbles
  • do not cache sync results of today's scrobbles as it's a always partial sync

0.9.0 (2021-04-14)

  • Create an Archive behaviour with FileArchive implementation
  • Extract and store scrobbles in daily chunks
  • Extensive refactoring: simpler LastfmArchive functions core, deprecate archive functions
  • Rewrite tests with mocks, eliminate file writes during tests
  • Implement a GenServer simple tick-based (auto) cache memoization to prevent repetitive API calls to

0.8.0 (2021-01-04)

  • Update Elixir/Erlang versions and dependencies
  • Replace HTTP client (HTTPoison) with Erlang's built-in httpc client
  • Replace Poison with Jason for JSON decoding/encoding
  • Apply mix formatting to the entire codebase
  • Refactor and abstract LastfmArchive.Extract functions into a new module based on Lastfm.Client behaviour
  • Implement explicit behaviour and contract-based unit testing (Hammox/Mox)
  • Refactor and enable concurrent testing

0.7.2 (2019-02-25)

  • Fix the issue of changing the date/count data type in JSON back and forth (string <-> integer).

0.7.1 (2019-01-14)

  • Patches as per API JSON data format changes: uts timestamp, play counts info are now returned as integers instead of strings.

0.7.0 (2019-01-11)

  • sync/0, sync/1: sync and keep tracks of scrobbles for a default and users, via delta archiving (download latest scrobbles)

0.6.0 (2018-11-10)

  • Support for Solr: load all transformed (TSV) data from the archive into Solr, load_archive/2
  • Underpinning functions to read, parse, load data into Solr

0.5.0 (2018-11-05)

  • transform_archive/2: transform downloaded raw archive and create a TSV file archive
  • Underpinning functions to read, parse and transform raw Lastfm JSON data into TSV files

0.4.1 (2018-11-01)

  • fix single year archiving (bug): daily: true option

0.4.0 (2018-10-31)

  • archive/3: archiving data subset based on date ranges: single day/year, past week/month, arbitrary date range using Date, Date.Range structs
  • daily: true option for finer-grained batch archiving cf. the default year-level granularity

0.3.2 (2018-10-27)

  • overwrite archiving option to also re-fetch any existing downloaded data, for refreshing file archive

0.3.1 (2018-10-27)

  • Keyword list archiving options (per_page, interval) for archive/2 which can also be configured

0.3.0 (2018-10-26)

  • archive latest tracks (current year) on a daily basis to better ensure data immutability and updatability (new scrobbles)
  • archive older tracks on a yearly basis

0.2.0 (2018-10-23)

  • archive/0: downloads scrobbled tracks, creates a file archive for a default user according to configuration settings
  • archive/2: downloads scrobbled tracks, creates a file archive for any Lastfm user
  • write/3: outputs data for multiple Lastfm users (no longer hardwired to the default user)

0.1.0 (2018-10-22)

  • Download scrobbled tracks raw data, create an archive on local filesystem for a default user in configuration - archive/1
  • extract/5 and write/2 functions for Lastfm API requests and file output