Eclipse JGit: Java implementation of Git 4.2

API

• Add RemoteAddCommand
• Add RemoteListCommand
• Add RemoteRemoveCommand
• Add option to allow empty commits to CommitCommand

Configuration

• Honor some git-core fsck.* configuration settings

JGit command line

• RepoCommand: Add setRecordRemoteBranch option to record upstream branch

• git rev-parse: Add --verify option

• Add remote command to JGit command line

• Reset command support for the -- <paths> parameters

• Improved online help

Transport

• Support more encryption algorithms for Amazon S3 storage of git repositories

• Support atomic push in JGit client

Git attribute support

• Basic support for .gitattribute handling

Support git-lfs extension

• Add support for pre-push hooks

• Add support for smudge filters. If defined in .gitattributes call smudge filter during checkout.
• Add support for clean filters. If defined in .gitattributes call clean filter during add to index.

These enhancements enable JGit and EGit to support the git-lfs extension [1] for versioning of large files

[1] https://git-lfs.github.com/

Performance Improvements

• Improve performance of DirCacheBuilder
• Speed-up creation of DirCacheEntry
• Speed-up garbage collection by improving generation of bitmap index
• Speed-up delta-packing
• Improve bitmap index calculation to speed-up reachability calculations done during transport

Release Engineering and Build

• Use japicmp [1] instead of clirr to detect API changes since clirr doesn't support Java 8
• Use @Nullable annotations to aid detection of NPEs at design time
• Alternative buck build, much faster than Maven, can't build OSGi artefacts yet

[1] https://github.com/siom79/japicmp