Change Log

All notable changes to this project will be documented in this file, which follows the conventions of keepachangelog.com. This project adheres to Semantic Versioning.

Unreleased

...

1.2.0 - 2019-05-21

Added

• Backport the blocks.meter namespace and logic from the 2.x series.

1.1.0 - 2017-12-24

This release upgrades the library to Clojure 1.9.0.

1.0.0 - 2017-11-05

Finally seems like time for a 1.0 release. One very minor breaking change.

Added

• New predicate blocks.core/lazy?.

Changed

• BREAKING: the :stored-at metadata on blocks is now returned as a java.time.Instant instead of a java.util.Date.
• MemoryBlockStore uses a ref internally instead of an atom.
• Minor dependency version upgrades.
• Generative block store tests are now based on test.carly.

Removed

• BREAKING: Blocks no longer implement IDeref as a way to get their internal content.

0.9.1 - 2017-05-17

Added

• PersistentBytes has a toByteArray method to return a copy of the byte data as a raw array.

0.9.0 - 2017-03-31

This release has a couple of breaking changes, detailed below.

Added

• PersistentBytes values support comparison using lexical sorting rules.
• blocks.core/->store initializer function to create block stores from URI configuration strings.
• blocks.core/scan function to produce a summary of the blocks contained in the store.
• Summary data functions which provide a count, total size, size histogram, and bloom filter for block id membership.
• blocks.core/sync! function to copy blocks between stores.
• ErasableStore protocol for block stores which support efficient or atomic data removal. There's a matching blocks.core/erase!! function using it, which falls back to deleting the blocks in the store individually.
• Buffer store supports a maximum block size limit. Storing blocks larger than the limit will write directly to the backing store, skipping the buffer.

Changed

• blocks.store.util namespace merged into blocks.store. This mainly impacts store implementers.
• Replica store construction changed to make them better components. They now take a vector of keys, rather than stores.

Removed

• Dropped EnumerableStore protocol and enumerate method. No usages have come up requiring it and it's easy to replace in the non-optimized case.

0.8.0 - 2016-08-14

Changed

• All block stores were renamed to consistently end with BlockStore.
• All block store constructors are similarly renamed, e.g. file-block-store.
• Store constructors all follow a component pattern with variadic options.
• Blocks no longer implement IPending, because it is not appropriate to treat immutable values as asynchronous references.

Added

• Multimethod blocks.store/initialize for constructing block stores from a URI string. The method is dispatched by URI scheme.

Removed

• Problematic namespace blocks.data.conversions, which defined conversion paths for the byte-streams library.

0.7.1 - 2016-07-25

Fixed

• Small number of reflection warnings in blocks.data/clean-block.
• Improved generative store tests.

0.7.0 - 2016-04-27

Changed

• Upgrade mvxcvi/multihash to 2.0.0.
• Small efficiency improvements to block construction.
• Memory stores strip metadata and extra attributes from blocks put! in them.
• Integration tests in blocks.store.tests now build generative sequences of operations and apply them to the store under test.

Fixed

• Reading an empty content source returns nil instead of an empty block.
• Check that the argument to block/put! is actually a block.
• Handle block merging in block/put! instead of requiring stores to do it.
• File stores correctly return false when deleting a block which is not contained in the store.

0.6.1 - 2016-01-25

Added

• Expand PersistentBytes equality to include primitive byte arrays and ByteBuffer objects which have identical content.

Fixed

• block/store! will no longer try to store empty files.

0.6.0 - 2016-01-10

Added

• Add logical 'replica' and 'buffer' stores. #2
• Add a second arity to block/open to read a sub-range of the content in a block by specifying starting and ending bytes. #3
• Add protocol for batch block operations. #5
• Add protocol for efficient block enumeration. #8

Changed

• Remove extra 'Block' from many store record names, for example FileBlockStore to FileStore.
• Change file store to match IPFS file repo behavior by restricting it to a single intermediate directory level.
• Move block store protocols to blocks.store namespace, with wrappers in blocks.core.

Fixed

• validate! now checks the size of lazy blocks by using a counting input stream wrapper.

0.5.0 - 2015-11-14

Added

• blocks.store.cache namespace with logical caching block store implementation.

Changed

• random-bytes and random-hex now generate fixed-width data.

0.4.2 - 2015-11-13

Changed

• File store now locks itself during put!, delete!, and erase! to prevent concurrent modifications.
• select-stats moved from core to util namespace.

Fixed

• File store skips over malformed files instead of throwing an exception.

0.4.1 - 2015-11-12

Changed

• Rename :origin block stat to :source.
• Switch argument order in read-block for consistency.

Fixed

• put! retains extra attributes and metadata on the block argument in the returned block.
• Expanded integration test suite to cover stat and get on non-existent blocks and put! merging.

0.4.0 - 2015-11-10

Lots of high-level library changes! blocks.data.Block is now a custom type to protect immutable fields like :id and :size and support the IPending interface.

Added

• Blocks can be either literal or lazy to support larger block sizes.
• A standard set of BlockStore integration tests are available in the blocks.store.tests namespace.

Changed

• BlockStore methods enumerate and get* changed to -list and -get, respectively.
• list now returns a sequence of block stats, rather than just multihashes.
• Blocks returned by get and put! add stat information as metadata.
• File stores now keep blocks in a manner compatible with IPFS.

0.3.0 - 2015-11-03

Initial project release.