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JGit, the Java implementation of git https://projects.eclipse.org/projects/technology.jgit
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David Ostrovsky 9c8ba9e35c Bazel: Pin jcl-over-slf4j to SLF4J_VERSION 
rules_jvm_external resolved org.slf4j:jcl-over-slf4j to 1.7.36 via
transitive dependencies, while slf4j-api and slf4j-simple are pinned
to 2.0.17.

This resulted in a mixed SLF4J 1.x/2.x setup on the classpath, which
can lead to runtime conflicts.

Add jcl-over-slf4j as an explicit artifact in maven.install to align
the SLF4J bridge with the rest of the logging stack and ensure a
consistent dependency graph.

Test Plan:
  bazel query --output=build @external_deps//:org_slf4j_jcl_over_slf4j

Also pin this artefact to SLF4J_VERSION in the maven build by adding
a corresponding entry under dependencyManagement.

Test Plan:
  $ mvn dependency:tree -Dincludes=org.slf4j:jcl-over-slf4j

Also add this transitive dependency to the target platforms and the
p2 repository.

Change-Id: I1e9e15ac3b2675e624384763dc8c4212a75d656e
2026-02-27 12:41:50 +01:00
.github Remove the option to create 'blank issues' in GitHub 2026-02-23 10:58:24 +01:00
.mvn Remove blank in maven.config 2023-04-15 00:42:22 +02:00
.settings Add resource preferences for top level jgit project 2019-12-16 11:20:12 +01:00
Documentation [cli] Add options --pack-refs and --no-pack-refs to Gc command 2026-02-10 10:21:52 +01:00
lib Bazel: align JGit with shared external_deps repository 2026-02-12 00:29:07 +01:00
org.eclipse.jgit Support diff3 conflict style in merges 2026-02-24 22:45:00 +00:00
org.eclipse.jgit.ant Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.ant.test Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.archive Add missing reference to commons-io 2025-12-08 09:21:24 +01:00
org.eclipse.jgit.benchmarks Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.coverage Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.gpg.bc Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.gpg.bc.test Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.http.apache Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.http.server Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.http.test Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.junit Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.junit.http Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.junit.ssh Update Apache sshd to 2.17.1 2026-01-28 17:09:39 +01:00
org.eclipse.jgit.lfs Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.lfs.server Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.lfs.server.test Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.lfs.test Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.packaging Bazel: Pin jcl-over-slf4j to SLF4J_VERSION 2026-02-27 12:41:50 +01:00
org.eclipse.jgit.pgm DfsMidxWriter: Pass the PackIndexMerger instead of a Map of sources 2026-02-18 13:10:32 -08:00
org.eclipse.jgit.pgm.test Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.ssh.apache Update Apache sshd to 2.17.1 2026-01-28 17:09:39 +01:00
org.eclipse.jgit.ssh.apache.agent Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.ssh.apache.test Update Apache sshd to 2.17.1 2026-01-28 17:09:39 +01:00
org.eclipse.jgit.ssh.jsch Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.ssh.jsch.test Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
org.eclipse.jgit.test Support diff3 conflict style in merges 2026-02-24 22:45:00 +00:00
org.eclipse.jgit.ui Prepare 7.6.0-SNAPSHOT builds 2025-12-02 17:54:27 +01:00
tools Update python dependencies of download_release.py 2026-01-08 09:56:46 +01:00
.bazelrc Bazel: enforce strict MODULE.bazel.lock synchronization 2026-02-06 08:31:11 +01:00
.bazelversion Restore WORKSPACE and Bazel 7.6.1 2025-07-14 17:11:44 +02:00
.gitattributes Configure .gitattributes to manage line endings 2023-12-22 23:20:39 +01:00
.gitignore Migrate deployment to Maven Central to use Central Portal API 2025-10-07 10:05:59 +02:00
.mailmap Update .mailmap 2024-12-08 23:00:00 +01:00
BUILD sshd: add support for ssh-agent 2021-11-03 23:46:54 +01:00
CODE_OF_CONDUCT.md Add Eclipse code of conduct and security policy 2021-06-15 13:44:58 +02:00
CONTRIBUTING.md Update CONTRIBUTING.md to point to GitHub issues 2024-03-10 21:41:33 +01:00
LICENSE Clean up LICENSE file 2010-07-02 14:52:49 -07:00
MODULE.bazel Bazel: Pin jcl-over-slf4j to SLF4J_VERSION 2026-02-27 12:41:50 +01:00
MODULE.bazel.lock Bazel: bump rules_jvm_external to 6.10 2026-02-12 00:29:07 +01:00
pom.xml Bazel: Pin jcl-over-slf4j to SLF4J_VERSION 2026-02-27 12:41:50 +01:00
README.md Improve the README 2025-11-04 13:37:55 +01:00
SECURITY.md Update SECURITY.md 2024-02-28 00:42:12 +01:00
WORKSPACE MODULE.bazel: Move dependencies from WORKSPACE to bazel modules 2025-12-08 09:21:24 +01:00

README.md

Eclipse JGit

An implementation of the Git version control system in pure Java.

License

License
JGit is licensed under the Eclipse Distribution License 1.0 (BSD-3-Clause).

Latest Release

Maven Central javadoc Java

Support

Issues Discussions
Post questions, comments or discussions to the jgit-dev@eclipse.org mailing list. You need to be subscribed to post.

Contributing

Contributors Last commit Commit activity the past week, 4 weeks Commits since
See the JGit and EGit Contributor Guide.

Build

JGit can be imported straight into Eclipse and built and tested from there. It can be built from the command line using Maven or Bazel. The CI builds use Maven and run on Jenkins.

Modules

  • org.eclipse.jgit

    A pure Java library capable of being run standalone, with no additional support libraries. It provides classes to read and write a Git repository and operate on a working directory.

    All portions of JGit are covered by the EDL. Absolutely no GPL, LGPL or EPL contributions are accepted within this package.

  • org.eclipse.jgit.ant

    Ant tasks based on JGit.

  • org.eclipse.jgit.archive

    Support for exporting to various archive formats (zip etc).

  • org.eclipse.jgit.http.apache

    Apache httpclient support.

  • org.eclipse.jgit.http.server

    Server for the smart and dumb Git HTTP protocol.

  • org.eclipse.jgit.lfs

    Support for LFS (Large File Storage).

  • org.eclipse.jgit.lfs.server

    Basic LFS server support.

  • org.eclipse.jgit.packaging

    Production of Eclipse features and p2 repository for JGit. See the JGit Wiki on why and how to use this module.

  • org.eclipse.jgit.pgm

    Command-line interface Git commands implemented using JGit ("pgm" stands for program).

  • org.eclipse.jgit.ssh.apache

    Client support for the SSH protocol based on Apache Mina sshd.

  • org.eclipse.jgit.ssh.apache.agent

    Optional support for SSH agents for org.eclipse.jgit.ssh.apache.

  • org.eclipse.jgit.ui

    Simple UI for displaying git log.

Tests

  • org.eclipse.jgit.junit, org.eclipse.jgit.junit.http, org.eclipse.jgit.junit.ssh: Helpers for unit testing
  • org.eclipse.jgit.ant.test: Unit tests for org.eclipse.jgit.ant
  • org.eclipse.jgit.http.test: Unit tests for org.eclipse.jgit.http.server
  • org.eclipse.jgit.lfs.server.test: Unit tests for org.eclipse.jgit.lfs.server
  • org.eclipse.jgit.lfs.test: Unit tests for org.eclipse.jgit.lfs
  • org.eclipse.jgit.pgm.test: Unit tests for org.eclipse.jgit.pgm
  • org.eclipse.jgit.ssh.apache.test: Unit tests for org.eclipse.jgit.ssh.apache
  • org.eclipse.jgit.test: Unit tests for org.eclipse.jgit

Warnings/Caveats

  • Native symbolic links are supported, provided the file system supports them. For Windows you must use a non-administrator account and have the SeCreateSymbolicLinkPrivilege.

  • Only the timestamp of the index is used by JGit if the index is dirty.

  • JGit 6.0 and newer requires at least Java 11. Older versions require at least Java 1.8.

  • CRLF conversion is performed depending on the core.autocrlf setting, however Git for Windows by default stores that setting during installation in the "system wide" configuration file. If Git is not installed, use the global or repository configuration for the core.autocrlf setting.

  • The system wide configuration file is located relative to where C Git is installed. Make sure Git can be found via the PATH environment variable. When installing Git for Windows check the "Run Git from the Windows Command Prompt" option. There are other options like Eclipse settings that can be used for pointing out where C Git is installed. Modifying PATH is the recommended option if C Git is installed.

  • We try to use the same notation of $HOME as C Git does. On Windows this is often not the same value as the user.home system property.

Features

  • org.eclipse.jgit

    • Read loose and packed commits, trees, blobs, including deltafied objects.

    • Read objects from shared repositories

    • Write loose commits, trees, blobs.

    • Write blobs from local files or Java InputStreams.

    • Read blobs as Java InputStreams.

    • Copy trees to local directory, or local directory to a tree.

    • Lazily loads objects as necessary.

    • Read and write .git/config files.

    • Create a new repository.

    • Read and write refs, including walking through symrefs.

    • Read, update and write the Git index.

    • Checkout in dirty working directory if trivial.

    • Walk the history from a given set of commits looking for commits introducing changes in files under a specified path.

    • Object transport

      Fetch via ssh, git, http, Amazon S3 and bundles. Push via ssh, git, http, and Amazon S3. JGit does not yet deltify the pushed packs so they may be a lot larger than C Git packs.

    • Garbage collection

    • Merge

    • Rebase

    • And much more

  • org.eclipse.jgit.pgm

    • Assorted set of command line utilities. Mostly for ad-hoc testing of jgit log, glog, fetch etc.

  • org.eclipse.jgit.ant

    • Ant tasks

  • org.eclipse.jgit.archive

    • Support for Zip/Tar and other formats

  • org.eclipse.http

    • HTTP client and server support

Missing Features

There are some missing features:

  • signing push
  • shallow and partial cloning
  • support for remote helpers
  • support for credential helpers
  • support for multiple working trees (git-worktree)
  • using external diff tools
  • support for HTTPS client certificates
  • SHA-256 object IDs
  • git protocol V2 (client side): packfile-uris
  • multi-pack index
  • split index

About Git

More information about Git, its repository format, and the canonical C based implementation can be obtained from the Git website.