== Git Library for Ruby

Library for using Git in Ruby.

= Homepage

The Ruby/Git homepage is currently at : 

http://jointheconversation.org/rubygit

Git public hosting of the project source code is at:

http://repo.or.cz/w/rubygit.git

= Roadmap

Right now I'm forking calls to the 'git' binary, 
but eventually I'll replace that with either C bindings
to libgit or libgit-thin, or I'll write pure ruby
handlers for at least some of the Git stuff.


= Examples

Here are a bunch of examples of how to use the Ruby/Git package. 

First you have to remember to require rubygems if it's not.  Then include the 'git' gem.

   require 'rubygems'
   require 'git'

Here are the operations that need read permission only.
      
   g = Git.open (working_dir = '.')
 	  (git_dir, index_file)
   
   g.index
   g.index.readable?
   g.index.writable?
   g.repo
   g.dir
   
   g.log   # returns array of Git::Commit objects
   g.log.since('2 weeks ago')
   g.log.between('v2.5', 'v2.6')
   g.log.each {|l| puts l.sha }
   g.gblob('v2.5:Makefile').log.since('2 weeks ago')
   
   g.object('HEAD^').to_s  # git show / git rev-parse
   g.object('HEAD^').contents
   g.object('v2.5:Makefile').size
   g.object('v2.5:Makefile').sha
   
   g.gtree(treeish)
   g.gblob(treeish)
   g.gcommit(treeish)
   
   
   commit = g.gcommit('1cc8667014381')
    commit.gtree
    commit.parent.sha
    commit.parents.size
    commit.author.name
    commit.author.email
    commit.author.date.strftime("%m-%d-%y")
    commit.committer.name
    commit.date.strftime("%m-%d-%y")
    commit.message
   
  tree = g.gtree("HEAD^{tree}")
    tree.blobs
    tree.subtrees
    tree.children # blobs and subtrees
   
   g.revparse('v2.5:Makefile')
   
   g.branches # returns Git::Branch objects
   g.branches.local
   g.branches.remote
   g.branches[:master].gcommit
   g.branches['origin/master'].gcommit
   
   g.grep('hello')  # implies HEAD
   g.blob('v2.5:Makefile').grep('hello')
   g.tag('v2.5').grep('hello', 'docs/')
   
   g.diff(commit1, commit2).size
   g.diff(commit1, commit2).stats
   g.gtree('v2.5').diff('v2.6').insertions
   g.diff('gitsearch1', 'v2.5').path('lib/')
   g.diff('gitsearch1', @git.gtree('v2.5'))
   g.diff('gitsearch1', 'v2.5').path('docs/').patch
   g.gtree('v2.5').diff('v2.6').patch
   
   g.gtree('v2.5').diff('v2.6').each do |file_diff|
     puts file_diff.path
     puts file_diff.patch
     puts file_diff.blob(:src).contents
   end
   
   g.config('user.name')  # returns 'Scott Chacon'
   g.config # returns whole config hash
   
   g.tag # returns array of Git::Tag objects
   
   
   
And here are the operations that will need to write to your git repository.
   
   
   g = Git.init
     Git.init('project')
     Git.init('/home/schacon/proj', 
	 	  { :git_dir => '/opt/git/proj.git', 
		     :index_file => '/tmp/index'} )
 	  
   g = Git.clone(URI, :name => 'name', :path => '/tmp/checkout')   
   g.config('user.name', 'Scott Chacon')
   g.config('user.email', 'email@email.com')      
   
   g.add('.')
   g.add([file1, file2])
   
   g.remove('file.txt')
   g.remove(['file.txt', 'file2.txt'])
		     
   g.commit('message')
   g.commit_all('message')
   
   g = Git.clone(repo, 'myrepo')
   g.chdir do
    new_file('test-file', 'blahblahblah')
    g.status.changed.each do |file|
     puts file.blob(:index).contents
    end
   end
   
   g.reset # defaults to HEAD
   g.reset_hard(Git::Commit)
   
   g.branch('new_branch') # creates new or fetches existing
   g.branch('new_branch').checkout
   g.branch('new_branch').delete
   g.branch('existing_branch').checkout
   
   g.checkout('new_branch')
   g.checkout(g.branch('new_branch'))
   
   g.branch(name).merge(branch2)
   g.branch(branch2).merge  # merges HEAD with branch2
   
   g.branch(name).in_branch(message) { # add files }  # auto-commits
   g.merge('new_branch')
   g.merge('origin/remote_branch')
   g.merge(b.branch('master'))
   g.merge([branch1, branch2])
   
   r = g.add_remote(name, uri)  # Git::Remote
   r = g.add_remote(name, Git::Base)  # Git::Remote
   
   g.remotes  # array of Git::Remotes
   g.remote(name).fetch
   g.remote(name).remove
   g.remote(name).merge
   g.remote(name).merge(branch)
   
   g.fetch
   g.fetch(g.remotes.first)
   
   g.pull
   g.pull(Git::Repo, Git::Branch) # fetch and a merge
   
   g.add_tag('tag_name') # returns Git::Tag
   
   g.repack

   g.push
   g.push(g.remote('name'))