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Jonathan Nieder 6a94f027b6 Add "jgit archive" tool that writes a tree as a ZIP file 
C Git's "git archive" command represents a tree object using a
standard archival format like tar, zip, or tgz, ready for consumption
by other, git-unaware users or tools.

Add a bare-bones analagous "jgit archive" command to show what is
possible, supporting only ZIP format for now.  It uses java.util.zip
which is not aware of the InfoZIP extensions for representing symlinks
and file permissions, so symlinks, executable files, and submodule
entries are represented as plain text files.

Making this functionality available from the library, improving
handling of special entries, and support for other output formats are
left for later patches.  Ultimately the intent is to offer a
TreeArchiveStream class for use by web frontends like Gitiles to offer
"download as zip/tgz/txz" links and use by, for example, code search
tools to get easy access to the content of git tree objects.

Test with "jgit archive my-favorite-tree >out.zip".

Change-Id: Ib590f173ceff3df4b58493cecccd6b9a1b355e3d
 		2012-11-16 16:21:25 -08:00
org.eclipse.jgit Add support for pull with --rebase and --no-rebase 2012-11-16 12:51:35 -08:00
org.eclipse.jgit.ant Harmonize the JDT settings within JGit 2012-11-16 10:25:45 -08:00
org.eclipse.jgit.ant.test Harmonize the JDT settings within JGit 2012-11-16 10:25:45 -08:00
org.eclipse.jgit.console Make an exception for the formatting rules (turn off) for some files 2012-11-16 10:28:42 -08:00
org.eclipse.jgit.http.server Make an exception for the formatting rules (turn off) for some files 2012-11-16 10:28:42 -08:00
org.eclipse.jgit.http.test Harmonize the JDT settings within JGit 2012-11-16 10:25:45 -08:00
org.eclipse.jgit.iplog Make an exception for the formatting rules (turn off) for some files 2012-11-16 10:28:42 -08:00
org.eclipse.jgit.junit Harmonize the JDT settings within JGit 2012-11-16 10:25:45 -08:00
org.eclipse.jgit.junit.http Harmonize the JDT settings within JGit 2012-11-16 10:25:45 -08:00
org.eclipse.jgit.packaging Update packaging build to use Tycho 0.16 2012-10-19 21:35:13 +02:00
org.eclipse.jgit.pgm Add "jgit archive" tool that writes a tree as a ZIP file 2012-11-16 16:21:25 -08:00
org.eclipse.jgit.pgm.test Add "jgit archive" tool that writes a tree as a ZIP file 2012-11-16 16:21:25 -08:00
org.eclipse.jgit.test Add support for pull with --rebase and --no-rebase 2012-11-16 12:51:35 -08:00
org.eclipse.jgit.ui Make an exception for the formatting rules (turn off) for some files 2012-11-16 10:28:42 -08:00
tools Fix version.sh 2011-12-10 01:03:33 +01:00
.eclipse_iplog Update Eclipse IP log for 1.0 2011-05-25 20:14:35 +02:00
.gitattributes Initial JGit contribution to eclipse.org 2009-09-29 16:47:03 -07:00
.gitignore Ignore /target 2012-03-05 21:11:57 -08:00
LICENSE Clean up LICENSE file 2010-07-02 14:52:49 -07:00
README.md Update README 2012-09-28 23:21:22 +02:00
SUBMITTING_PATCHES Correcting explanation of EDL 2009-10-28 14:12:07 +01:00
pom.xml Update jgit's last release version for API change reports 2012-10-16 11:37:44 +02:00

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).

  • 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.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.test

    Unit tests for org.eclipse.jgit and the same licensing rules.

Warnings/Caveats

  • Symbolic links are not supported because java does not support it. Such links could be damaged.

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

  • Don't try the library with a JDK other than 1.6 (Java 6) unless you are prepared to investigate problems yourself. JDK 1.5.0_11 and later Java 5 versions may work. Earlier versions do not. JDK 1.4 is not supported. Apple's Java 1.5.0_07 is reported to work acceptably. We have no information about other vendors. Please report your findings if you try.

  • 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 the jgit.gitprefix system propety or 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 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.

  • org.eclipse.jgit.pgm/

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

Missing Features

There are some missing features:

  • gitattributes support

  • Recursive merge strategy

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/