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Latest commit adff322 Apr 25, 2016 @dborowitz dborowitz Expose the ObjectInserter that created an ObjectReader
We've found in Gerrit Code Review that it is common to pass around
both an ObjectReader (or more commonly a RevWalk wrapping one) and an
ObjectInserter. These code paths often assume that the ObjectReader
can read back any objects created by the ObjectInserter without
flushing. However, we previously had no way to enforce that constraint
programmatically, leading to hard-to-spot problems.

Provide a solution by exposing the ObjectInserter that created an
ObjectReader, when known. Callers can either continue passing both
objects and check:
  reader.getCreatedFromInserter() == inserter
or they can just pass around ObjectReader and extract the inserter
when it's needed (checking that it's not null at usage time).

Change-Id: Ibbf5d1968b506f6b47030ab1b046ffccb47352ea
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lib Support LFS protocol and a file system based LFS storage Feb 4, 2016
org.eclipse.jgit.ant.test Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.ant Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.archive Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.http.apache Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.http.server Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.http.test Fix RefsUnreadableInMemoryRepository Apr 16, 2016
org.eclipse.jgit.junit.http Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.junit Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.lfs.server.test Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.lfs.server Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.lfs.test Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.lfs Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.packaging Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.pgm.test Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.pgm Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit.test Expose the ObjectInserter that created an ObjectReader Apr 26, 2016
org.eclipse.jgit.ui Prepare 4.4.0-SNAPSHOT builds Apr 8, 2016
org.eclipse.jgit Expose the ObjectInserter that created an ObjectReader Apr 26, 2016
tools Add lfs libraries to scripts for upload to Maven central Apr 8, 2016
.buckconfig Buck: Simplify root build file Feb 14, 2016
.buckversion Update buck to e64a2e2ada022f81e42be750b774024469551398 Apr 21, 2016
.gitattributes Initial JGit contribution to eclipse.org Sep 29, 2009
.gitignore Add .buckd to .gitignore Apr 19, 2016
.mailmap Update .mailmap Feb 12, 2016
BUCK Buck: Simplify root build file Feb 14, 2016
CONTRIBUTING.md Update SUBMITTING_PATCHES Jul 20, 2014
LICENSE Clean up LICENSE file Jul 2, 2010
README.md FS: Remove the gitprefix logic May 22, 2015
pom.xml Fix Buck build broken by 4812fda. Apr 14, 2016

README.md

Java Git

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

This package is licensed under the EDL (Eclipse Distribution License).

JGit can be imported straight into Eclipse, built and tested from there, but the automated builds use Maven.

  • 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.java7

    Extensions for users of Java 7.

  • 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.pgm

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

  • 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.

Tests

  • org.eclipse.jgit.junit

    Helpers for unit testing

  • org.eclipse.jgit.test

    Unit tests for org.eclipse.jgit

  • org.eclipse.jgit.java7.test

    Unit tests for Java 7 specific features

  • org.eclipse.jgit.ant.test

  • org.eclipse.jgit.pgm.test
  • org.eclipse.jgit.http.test
  • org.eclipse.jgit.junit.test

    No further description needed

Warnings/Caveats

  • Native smbolic links are supported, but only if you are using Java 7 or newer and include the org.eclipse.jgit.java7 jar/bundle in the classpath, provided the file system supports them. For Windows you must have Windows Vista/Windows 2008 or newer, 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 requires at least a Java 7 JDK.

  • 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.

Package 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 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.java7/

    • Support for symbolic links.

    • Optimizations for reading file system attributes

  • 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:

  • gitattributes support

Support

Post question, comments or patches to the jgit-dev@eclipse.org mailing list. You need to be subscribed to post, see here:

https://dev.eclipse.org/mailman/listinfo/jgit-dev

Contributing

See the EGit Contributor Guide:

http://wiki.eclipse.org/EGit/Contributor_Guide

About Git

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

http://git-scm.com/

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