Module: Grit::GitRuby

Included in:
Git
Defined in:
lib/grit/git-ruby.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 by 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, GitObject, Repository, Tag, Tree, UserInfo

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#git_file_indexObject

Returns the value of attribute git_file_index



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# File 'lib/grit/git-ruby.rb', line 10

def git_file_index
  @git_file_index
end

#ruby_git_repoObject

Returns the value of attribute ruby_git_repo



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# File 'lib/grit/git-ruby.rb', line 10

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/git_object.rb', line 186

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

#cat_file(options, sha) ⇒ Object



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# File 'lib/grit/git-ruby.rb', line 20

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 32

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 46

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

#file_size(ref) ⇒ Object



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# File 'lib/grit/git-ruby.rb', line 201

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 205

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 12

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 38

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 116

def refs(options, prefix)
  refs = []
  already = {}
  orig_prefix = prefix
  prefix = File.join @git_dir, prefix

  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

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

  refs.join("\n")
end

#rev_list(options, *refs) ⇒ Object



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# File 'lib/grit/git-ruby.rb', line 50

def rev_list(options, *refs)
  refs = ['master'] if refs.empty?
  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) || refs.size > 1
    method_missing('rev-list', options, *refs)
  elsif (options.size == 0)
    # pure rev-list
    ref = refs.first
    begin
      file_index.commits_from(rev_parse({}, ref)).join("\n") + "\n"
    rescue
      method_missing('rev-list', options, *refs)
    end
  else
    ref = refs.first
    aref = rev_parse({:verify => true}, ref)
    if aref.is_a? Array
      method_missing('rev-list', options, *refs)
    else
      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 75

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

  # Split ranges, but don't split when specifying a ref:path.
  # Don't split HEAD:some/path/in/repo..txt
  # Do split sha1..sha2
  if string !~ /:/ && 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_gitObject



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# File 'lib/grit/git-ruby.rb', line 209

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 150

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

  orig_prefix = prefix
  prefix = File.join @git_dir, prefix

  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

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

  refs.join("\n")
end