Eclipse JGit: Java implementation of Git 5.1.0 Release Review

This release will be shipped with the simultaneous release 2018-09

Features

• 434085 Use the same default diff.renameLimit = 400 like native git
• Parse signature of GPG-signed commits
• Replace fetch.useminimalnegotation flag with fetch.maxhaves flag
• Protocol V2
  • FetchV2Request: Rename shallowSince to deepenSince
  • Add fetch support to ProtocolV2Hook
  • #534847 Introduce ProtocolV2Hook
  • Fetch protocol v2: Respond with shallow-info before wanted-refs
  • Support protocol v2 want-ref in UploadPack
• Allow overriding DfsPackDescription comparator for scanning packs
• Make DfsConfig public
• Add ls-files CLI command
• RepoCommand: Support remove-project node in the manifest parser
• RepoCommand: record remote branch, group, shallow bit by default
• SubmoduleAddCommand: Add API to specify the submodule name

Performance Improvements

• Seek references by prefix in reftable
• Fix a GC scalability issue when selecting commit bitmaps
• 485743 Avoid expensive getAllRefsByPeeledObjectId() in PlotWalk constructor

Bug Fixes

• 536318 Fix replacement quoting for replaceAll in filter command
• 537969 Fix atomic lock file creation on NFS configured via option core.supportsAtomicCreateNewFile
• GC: Avoid logging errors when deleting non-empty folders
• 538286 Fix NoSuchFileException in GC.deleteTempPacksIdx()
• 538285 Fix NoSuchFileException during directory cleanup in RefDirectory
• 529400 Fix fetching with duplicate ref updates
• 529314 Fetch(Process): should tolerate duplicate refspecs
• 538068 SubmoduleDeinitTest fails on Windows
• 538068 FilterCommandsTest fails on Windows
• 538068 ReceivePackAdvertiseRefsHookTest.testSuccess() fails on Windows
• 537969 Fix wrong warning message in case of lock failures
• Fix GC run in foreground to not use executor
• Fix unpredictable ordering of entries in .gitmodules.
• 537410 Fix ResolveMerger: rebase with autocrlf=true, direct checkout
• 537790 Ensure that JSch knows HostKeyAlgorithms ssh-rsa and ssh-dss
• 536324 Abort rename detection in a timely manner if cancelled
• RepoCommand: Use project names instead of paths for the submodule name
• Send only 1 flush pkt at the end of v2 fetch
• 499543 Fix NPE in BlameGenerator.getSourceStart()
• 537166 HttpClientConnection.getHeaderFields should support multiple values for same header
• Always send refs' objects despite "filter" in pack
• 536880 ResolveMerger: don't try needlessly to delete directories
• 526111 Ensure RacyGitTests don't raise false negatives
• GC: Trim more EWAHCompressedBitmaps to free unused memory
• Make Reftable seek* and has* method names more consistent
• Add progress monitor step to first phase of GC commit selection
• 536541 Add response message, if any, on HTTP status 404
• Correctly handle initialization of shallow commits
• CleanCommand: don't fire WorkingTreeModifiedEvent on dry run
• DfsPackDescription: Disallow null PackSource

Build and Release Engineering

• Update Orbit 2018-09 to R20180905201904
• Update Photon orbit repository to R20180606145124
• Bazel: Use hyphen instead of underscore in external repository names
• Update bazel dependencies to match maven dependencies
• Update Jetty to 9.4.11.v20180605
• Update org.apache.commons.codec to 1.10.0.v20180409-1845
• Update org.apache.commons.logging to 1.2.0.v20180409-1502
• Update org.apache.httpcomponents.httpclient to 4.5.5.v20180409-1525
• Update org.apache.httpcomponents.httpcore to 4.4.9.v20180409-1525
• Update Maven plugins
  • build-helper-maven-plugin 3.0.0
  • eclipse-jarsigner-plugin 1.1.5
  • jacoco-maven-plugin 0.8.1
  • maven-clean-plugin 3.1.0
  • maven-compiler-plugin 3.8.0
  • maven-jar-plugin 3.1.2
  • maven-pmd-plugin 3.10.0
  • maven-resources-plugin 3.1.0
  • maven-shade-plugin 3.1.1
  • maven-site-plugin 3.7.1
  • maven-surefire-plugin 2.21.0
  • maven-surefire-report-plugin 2.21.0
  • plexus-compiler-javac 2.8.4
  • spotbugs-maven-plugin 3.1.6
  • wagon-ssh 3.1.0
• Upgrade Tycho to 1.2.0