A JRuby wrapper around the JGit library for manipulating Git repositories, the Ruby way.
RJGit provides a fully featured library for accessing and manipulating git repositories by wrapping the Java JGit library. It thus provides similiar functionality as e.g. rugged on JRuby.
Install the rjgit gem with the command:
$ gem install rjgit
- JRuby >= 1.7.0
- mime-types >= 1.15
- rake >= 0.9.2.2
- rspec >= 2.0
- simplecov
RJGit's version number is the version of jgit used, plus our own patch level counter. For instance, RJGit 4.0.1.0 uses jgit 4.0.1, patch level 0.
RJGit wraps most (if not all) of JGit's core functionality; it has classes for all important Git objects, i.e., Repo, Blob, Tree, Commit, and Tag. It allows parsing and manipulation of these objects in an intuitive manner, either simulating ordinary git usage (with a working directory on disk) or on a lower level, through creating new git objects manually (also works with 'bare' repositories, without a working directory).
See below for some examples of what you can do with RJGit. Make sure you have JRuby installed.
require "rjgit"
include RJGit
repo = Repo.new("repo.git")
repo = Repo.new("repo.git", :create => true)
repo = Repo.new("repo.git", :create => true, :is_bare => true) # Create a 'bare' git repo.
repo.bare? # Is this a bare repository?
repo.commits('master')
repo.commits('959329025f67539fb82e76b02782322fad032821')
repo.head
commit = repo.commits('master').first # a Commit object; try commit.actor, commit.id, etc.
# Similarly for getting tags, branches, trees (directories), and blobs (files).
repo.find('959329025f67539fb82e76b02782322fad032821')
repo.find('959329025f67539fb82e76b02782322fad032821', :commit) # Find a specific :commit, :blob, :tree, or :tag
repo.git.log # Returns an Array of Commits constituting the log for the default branch
repo.git.log("follow-rename.txt", "HEAD", follow: true, list_renames: true) # Log for a specific path, tracking the pathname over renames. Returns an Array of TrackingCommits, which store the tracked filename: [#<RJGit::TrackingCommit:0x773014d3 @tracked_pathname="follow-rename.txt" ...>]
sha1 = repo.head.id
sha2 = repo.commits.last.id
options = {:old_rev => sha2, :new_rev => sha1, :file_path => "some/path.txt", :patch => true}
Porcelain.diff(repo, options)
tag = repo.tags['example_tag']
tag.id # tag's object id
tag.author.name # Etcetera
some_object = Porcelain.object_for_tag(repo, tag) # Returns the tagged object; e.g. a Commit
blob = repo.blob("example/file.txt") # Retrieve a file by filepath...
blob = repo.find("959329025f67539fb82e76b02782322fad032822", :blob) # ...or by SHA
blob.data # Cat the file; also blob.id, blob.mode, etc.
tree = repo.tree("example") # Retrieve a tree by filepath...
tree = repo.find("959329025f67539fb82e76b02782322fad032000", :tree) #...or by SHA
tree.data # List the tree's contents (blobs and trees). Also tree.id, tree.mode, etc.
tree.each {|entry| puts entry.inspect} # Loop over the Tree's children (Blobs and Trees)
tree.trees # An array of the Tree's child Trees
tree.blobs # An array of the Tree's child Blobs
Porcelain::ls_tree(repo, repo.tree("example"), :print => true, :recursive => true, :ref => 'mybranch') # Outputs the Tree's contents to $stdout. Faster for recursive listing than Tree#each. Passing nil as the second argument lists the entire repository. ref defaults to HEAD.
blob = Blob.new_from_string(repo, "Contents of the new blob.") # Inserts the blob into the repository, returns an RJGit::Blob
tree = Tree.new_from_hashmap(repo, {"newblob" => "contents", "newtree" => { "otherblob" => "this blob is contained in the tree 'newtree'" } } ) # Constructs the tree and its children based on the hashmap and inserts it into the repository, returning an RJGit::Tree. Tree.new_from_hashmap takes an RJGit::Tree as an optional third argument, in which case the new tree will consist of the children of that Tree *plus* the contents of the hashmap.
repo.create_branch('new_branch') # Similarly for deleting, renaming
repo.checkout('new_branch')
repo.add('new_file.txt') # Similarly for removing
repo.commit('My message')
repo.update_ref(commit) # Fast forward HEAD (or another ref) to the commit just created
repo = repo.new("repo.git")
tree = Tree.new_from_hashmap(repo, {"newblob" => "contents"}, repo.head.tree ) # As above, use the current head commit's tree as a starting point and add "newblob"
actor = RJGit::Actor.new("test", "test@repotag.org")
commit = Commit.new_with_tree(repo, tree, "My commit message", actor) # Create a new commit with tree as base tree
pack = RJGitReceivePack.new(repo) # Implement the smart-http protocol with RJGitReceivePack and RJGitUploadPack
pack.receive(client_msg) # Respond to a client's GET request
repo.config['remote origin']['url'] # Retrieve config values
Porcelain::diff(repo, options)
Porcelain::blame(repo, options)
Please let us know by creating a github issue.
- Fork the project
- Create a new branch
- Modify the sources
- Add specs with full coverage for your new code
- Make sure the whole test suite passes by running rake
- Push the branch up to GitHub
- Send us a pull request
- Start the nailgun server
jruby --ng-server &
- Run rake against the nailgun instance
jruby --ng -S rake
RJGit is being developed by Team Repotag:
With special thanks to:
Copyright (c) 2011 - 2015, Team Repotag
(Modified BSD License)
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of the organization nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.