Eclipse JGit: Java implementation of Git 4.8.0

4.8.0

Description

Allow DfsReader to be subclassed
Track read IO statistics for DfsReader
Support pulling remote branches to apply them on detached HEAD (Bug 485396).
Reset ObjectWalker when it starts a new walk
Clone: add --recurse-submodules option
Add parseCommit(AnyObjectId) method to Repository.
RepoCommand: Add linkfile support.
BundleWriter: Allow constructing from only an ObjectReader
Support creating Mergers without a Repository using an ObjectInserter and a config that declares a diff algorithm.
Run auto GC in the background. Execute gc at maximum once per day if number of loose unreachable objects which didn't expire yet exceeds gc.auto limit.
Allow to use an external ExecutorService for background auto-gc
Use a dedicated executor to run auto-gc in command line interface
Fetch: Add --recurse-submodules and --no-recurse-submodules options

Exclude refs/tags from bitmap commit selection to reduce the number of bitmaps created and reduce the memory pressure on the GC task.
Reduce fetch bandwidth cost when objects described by the client are missing on the server

Checkout should not use too long filenames (Bug 508823)
Clean up the disk when cloning fails (Bug 516303)
Add shutdown hook to cleanup unfinished clone when JVM is killed (Bug 516303)
Fix stack overflow in MergeBaseGenerator
DfsGarbageCollector: Delete expired garbage even when there is no GC pack present.
When looping through alternates, prevent visiting the same object directory twice.
Fix RepoCommand to allow for relative URLs
PackWriterBitmapWalker: only throw MissingObjectException when necessary
Archive TarFormat: Use commit time as timestamp for entries
Make diff locations more consistent fixing incorrectly removed or duplicated lines in 3-way merge (Bug 514095).
Fix out-of-bounds exception in RepoCommand#relative
Fix null return from FS.readPipe when command fails to launch

This release is part of Eclipse Oxygen