Module: Grit::GitRuby

Included in:
Git
Defined in:
lib/grit/git-ruby.rb,
lib/grit/git-ruby/object.rb,
lib/grit/git-ruby/file_index.rb,
lib/grit/git-ruby/git_object.rb,
lib/grit/git-ruby/repository.rb,
lib/grit/git-ruby/internal/pack.rb,
lib/grit/git-ruby/internal/loose.rb,
lib/grit/git-ruby/internal/raw_object.rb,
lib/grit/git-ruby/internal/file_window.rb

Overview

the functions in this module intercept the calls to git binary made buy the grit objects and attempts to run them in pure ruby if it will be faster, or if the git binary is not available (!!TODO!!)

Defined Under Namespace

Modules: Internal Classes: Blob, Commit, DirectoryEntry, FileIndex, GitObject, Object, Repository, Tag, Tree, UserInfo

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#git_file_index ⇒ Object

Returns the value of attribute git_file_index.



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# File 'lib/grit/git-ruby.rb', line 11

def git_file_index
  @git_file_index
end

#ruby_git_repo ⇒ Object

Returns the value of attribute ruby_git_repo.



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# File 'lib/grit/git-ruby.rb', line 11

def ruby_git_repo
  @ruby_git_repo
end

Class Method Details

.read_bytes_until(io, char) ⇒ Object 



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# File 'lib/grit/git-ruby/object.rb', line 164

def self.read_bytes_until(io, char)
  string = ''
  if RUBY_VERSION > '1.9'
    while ((next_char = io.getc) != char) && !io.eof
      string += next_char
    end
  else
    while ((next_char = io.getc.chr) != char) && !io.eof
      string += next_char
    end
  end
  string
end

Instance Method Details

#blame_tree(commit, path = nil) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 200

def blame_tree(commit, path = nil)
  begin
    path = [path].join('/').to_s + '/' if (path && path != '')
    path = '' if !path.is_a? String
    commits = file_index.last_commits(rev_parse({}, commit), looking_for(commit, path))
    clean_paths(commits)
  rescue FileIndex::IndexFileNotFound
    {}
  end
end

#cat_file(options, sha) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 21

def cat_file(options, sha)
  if options[:t]
    file_type(sha)
  elsif options[:s]
    file_size(sha)
  elsif options[:p]
    try_run { ruby_git.cat_file(sha) }
  end
rescue Grit::GitRuby::Repository::NoSuchShaFound
  ''
end

#cat_ref(options, ref) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 33

def cat_ref(options, ref)
  sha = rev_parse({}, ref)
  cat_file(options, sha)
end

#diff(options, sha1, sha2 = nil) ⇒ Object

git diff –full-index ‘ec037431382e83c3e95d4f2b3d145afbac8ea55d’ ‘f1ec1aea10986159456846b8a05615b87828d6c6’



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# File 'lib/grit/git-ruby.rb', line 47

def diff(options, sha1, sha2 = nil)
  try_run { ruby_git.diff(sha1, sha2, options) }
end

#file_index ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 211

def file_index
  @git_file_index ||= FileIndex.new(@git_dir)
end

#file_size(ref) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 192

def file_size(ref)
  try_run { ruby_git.cat_file_size(ref).to_s }
end

#file_type(ref) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 196

def file_type(ref)
  try_run { ruby_git.cat_file_type(ref).to_s }
end

#init(options, *args) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 13

def init(options, *args)
  if options.size == 0
    Grit::GitRuby::Repository.init(@git_dir)
  else
    method_missing('init', options, *args)
  end
end

#ls_tree(options, treeish, *paths) ⇒ Object

lib/grit/tree.rb:16: output = repo.git.ls_tree({}, treeish, *paths)



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# File 'lib/grit/git-ruby.rb', line 39

def ls_tree(options, treeish, *paths)
  sha = rev_parse({}, treeish)
  ruby_git.ls_tree(sha, paths.flatten, options.delete(:r))
rescue Grit::GitRuby::Repository::NoSuchShaFound
  ''
end

#refs(options, prefix) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 111

def refs(options, prefix)
  refs = []
  already = {}
  Dir.chdir(@git_dir) do
    files = Dir.glob(prefix + '/**/*')
    files.each do |ref|
      next if !File.file?(ref)
      id = File.read(ref).chomp
      name = ref.sub("#{prefix}/", '')
      if !already[name]
        refs << "#{name} #{id}"
        already[name] = true
      end
    end

    if File.file?('packed-refs')
      File.readlines('packed-refs').each do |line|
        if m = /^(\w{40}) (.*?)$/.match(line)
          next if !Regexp.new('^' + prefix).match(m[2])
          name = m[2].sub("#{prefix}/", '')
          if !already[name]
            refs << "#{name} #{m[1]}"
            already[name] = true
          end
        end
      end
    end
  end

  refs.join("\n")
end

#rev_list(options, ref = 'master') ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 51

def rev_list(options, ref = 'master')
  options.delete(:skip) if options[:skip].to_i == 0
  allowed_options = [:max_count, :since, :until, :pretty]  # this is all I can do right now
  if ((options.keys - allowed_options).size > 0)
    return method_missing('rev-list', options, ref)
  elsif (options.size == 0)
    # pure rev-list
    begin
      return file_index.commits_from(rev_parse({}, ref)).join("\n") + "\n"
    rescue
      return method_missing('rev-list', options, ref)
    end
  else
    aref = rev_parse({}, ref)
    if aref.is_a? Array
      return method_missing('rev-list', options, ref)
    else
      return try_run { ruby_git.rev_list(aref, options) }
    end
  end
end

#rev_parse(options, string) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/grit/git-ruby.rb', line 73

def rev_parse(options, string)
  raise RuntimeError, "invalid string: #{string}" unless string.is_a?(String)

  if string =~ /\.\./
    (sha1, sha2) = string.split('..')
    return [rev_parse({}, sha1), rev_parse({}, sha2)]
  end

  if /^[0-9a-f]{40}$/.match(string)  # passing in a sha - just no-op it
    return string.chomp
  end

  head = File.join(@git_dir, 'refs', 'heads', string)
  return File.read(head).chomp if File.file?(head)

  head = File.join(@git_dir, 'refs', 'remotes', string)
  return File.read(head).chomp if File.file?(head)

  head = File.join(@git_dir, 'refs', 'tags', string)
  return File.read(head).chomp if File.file?(head)

  ## check packed-refs file, too
  packref = File.join(@git_dir, 'packed-refs')
  if File.file?(packref)
    File.readlines(packref).each do |line|
      if m = /^(\w{40}) refs\/.+?\/(.*?)$/.match(line)
        next if !Regexp.new(Regexp.escape(string) + '$').match(m[3])
        return m[1].chomp
      end
    end
  end

  ## !! more - partials and such !!

  # revert to calling git - grr
  return method_missing('rev-parse', options, string).chomp
end

#ruby_git ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 215

def ruby_git
  @ruby_git_repo ||= Repository.new(@git_dir)
end

#tags(options, prefix) ⇒ Object 



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# File 'lib/grit/git-ruby.rb', line 143

def tags(options, prefix)
  refs = []
  already = {}

  Dir.chdir(repo.path) do
    files = Dir.glob(prefix + '/**/*')

    files.each do |ref|
      next if !File.file?(ref)

      id = File.read(ref).chomp
      name = ref.sub("#{prefix}/", '')

      if !already[name]
        refs << "#{name} #{id}"
        already[name] = true
      end
    end

    if File.file?('packed-refs')
      lines = File.readlines('packed-refs')
      lines.each_with_index do |line, i|
        if m = /^(\w{40}) (.*?)$/.match(line)
          next if !Regexp.new('^' + prefix).match(m[2])
          name = m[2].sub("#{prefix}/", '')

          # Annotated tags in packed-refs include a reference
          # to the commit object on the following line.
          next_line = lines[i + 1]

          id =
          if next_line && next_line[0] == ?^
            next_line[1..-1].chomp
          else
            m[1]
          end

          if !already[name]
            refs << "#{name} #{id}"
            already[name] = true
          end
        end
      end
    end
  end

  refs.join("\n")
end