Class: Git::Lib

Inherits:
Object
  • Object
show all
Defined in:
lib/git/lib.rb

Constant Summary collapse

DEFAULT_GIT_BINARY = 
'git'
@@git_binary = 
DEFAULT_GIT_BINARY

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base = nil, logger = nil) ⇒ Lib

Returns a new instance of Lib.



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# File 'lib/git/lib.rb', line 13

def initialize(base = nil, logger = nil)
  @git_dir = nil
  @git_index_file = nil
  @git_work_dir = nil
  @path = nil

  if base.is_a?(Git::Base)
    @git_dir = base.repo.path
    @git_index_file = base.index.path if base.index
    @git_work_dir = base.dir.path if base.dir
  elsif base.is_a?(Hash)
    @git_dir = base[:repository]
    @git_index_file = base[:index]
    @git_work_dir = base[:working_directory]
  end
  @logger = logger
end

Class Method Details

.git_binary ⇒ Object 



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# File 'lib/git/lib.rb', line 35

def self.git_binary
  @@git_binary
end

.git_binary=(new_git_binary) ⇒ Object 



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# File 'lib/git/lib.rb', line 31

def self.git_binary=(new_git_binary)
  @@git_binary = new_git_binary
end

Instance Method Details

#add(paths = '.', options = {}) ⇒ Object

updates the repository index using the workig dorectory content

lib.add('path/to/file')
lib.add(['path/to/file1','path/to/file2'])
lib.add(:all => true)

options:

:all => true
:force => true

Parameters:

  • paths (String, Array) (defaults to: '.') —

    files paths to be added to the repository

  • options (Hash) (defaults to: {}) 


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# File 'lib/git/lib.rb', line 414

def add(paths='.',options={})
  arr_opts = []

  arr_opts << '--all' if options[:all]
  arr_opts << '--force' if options[:force]

  arr_opts << '--'

  arr_opts << paths

  arr_opts.flatten!

  command('add', arr_opts)
end

#apply(patch_file) ⇒ Object 



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# File 'lib/git/lib.rb', line 480

def apply(patch_file)
  arr_opts = []
  arr_opts << '--' << patch_file if patch_file
  command('apply', arr_opts)
end

#apply_mail(patch_file) ⇒ Object 



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# File 'lib/git/lib.rb', line 486

def apply_mail(patch_file)
  arr_opts = []
  arr_opts << '--' << patch_file if patch_file
  command('am', arr_opts)
end

#archive(sha, file = nil, opts = {}) ⇒ Object

creates an archive file

options

:format  (zip, tar)
:prefix
:remote
:path



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# File 'lib/git/lib.rb', line 705

def archive(sha, file = nil, opts = {})
  opts[:format] ||= 'zip'

  if opts[:format] == 'tgz'
    opts[:format] = 'tar'
    opts[:add_gzip] = true
  end

  file ||= Tempfile.new('archive').path

  arr_opts = []
  arr_opts << "--format=#{opts[:format]}" if opts[:format]
  arr_opts << "--prefix=#{opts[:prefix]}" if opts[:prefix]
  arr_opts << "--remote=#{opts[:remote]}" if opts[:remote]
  arr_opts << sha
  arr_opts << '--' << opts[:path] if opts[:path]
  command('archive', arr_opts, true, (opts[:add_gzip] ? '| gzip' : '') + " > #{escape file}")
  return file
end

#branch_current ⇒ Object 



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# File 'lib/git/lib.rb', line 252

def branch_current
  branches_all.select { |b| b[1] }.first[0] rescue nil
end

#branch_delete(branch) ⇒ Object 



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# File 'lib/git/lib.rb', line 529

def branch_delete(branch)
  command('branch', ['-D', branch])
end

#branch_new(branch) ⇒ Object 



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# File 'lib/git/lib.rb', line 525

def branch_new(branch)
  command('branch', branch)
end

#branches_all ⇒ Object 



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# File 'lib/git/lib.rb', line 236

def branches_all
  arr = []
  command_lines('branch', '-a').each do |b|
    current = (b[0, 2] == '* ')
    arr << [b.gsub('* ', '').strip, current]
  end
  arr
end

#change_head_branch(branch_name) ⇒ Object 



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# File 'lib/git/lib.rb', line 232

def change_head_branch(branch_name)
  command('symbolic-ref', ['HEAD', "refs/heads/#{branch_name}"])
end

#checkout(branch, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 533

def checkout(branch, opts = {})
  arr_opts = []
  arr_opts << '-f' if opts[:force]
  arr_opts << '-b' << opts[:new_branch] if opts[:new_branch]
  arr_opts << branch

  command('checkout', arr_opts)
end

#checkout_file(version, file) ⇒ Object 



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# File 'lib/git/lib.rb', line 542

def checkout_file(version, file)
  arr_opts = []
  arr_opts << version
  arr_opts << file
  command('checkout', arr_opts)
end

#checkout_index(opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 688

def checkout_index(opts = {})
  arr_opts = []
  arr_opts << "--prefix=#{opts[:prefix]}" if opts[:prefix]
  arr_opts << "--force" if opts[:force]
  arr_opts << "--all" if opts[:all]
  arr_opts << '--' << opts[:path_limiter] if opts[:path_limiter].is_a? String

  command('checkout-index', arr_opts)
end

#clean(opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 460

def clean(opts = {})
  arr_opts = []
  arr_opts << '--force' if opts[:force]
  arr_opts << '-d' if opts[:d]
  arr_opts << '-x' if opts[:x]

  command('clean', arr_opts)
end

#clone(repository, name, opts = {}) ⇒ Object

tries to clone the given repo

returns :repository (if bare)

{:working_directory} otherwise

accepts options:

:remote::    name of remote (rather than 'origin')
:bare::      no working directory
:recursive:: after the clone is created, initialize all submodules within, using their default settings.
:depth::     the number of commits back to pull

TODO - make this work with SSH password or auth_key



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# File 'lib/git/lib.rb', line 65

def clone(repository, name, opts = {})
  @path = opts[:path] || '.'
  clone_dir = opts[:path] ? File.join(@path, name) : name

  arr_opts = []
  arr_opts << "--bare" if opts[:bare]
  arr_opts << "--recursive" if opts[:recursive]
  arr_opts << "-o" << opts[:remote] if opts[:remote]
  arr_opts << "--depth" << opts[:depth].to_i if opts[:depth] && opts[:depth].to_i > 0
  arr_opts << "--config" << opts[:config] if opts[:config]

  arr_opts << '--'
  arr_opts << repository
  arr_opts << clone_dir

  command('clone', arr_opts)

  opts[:bare] ? {:repository => clone_dir} : {:working_directory => clone_dir}
end

#commit(message, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 442

def commit(message, opts = {})
  arr_opts = []
  arr_opts << "--message=#{message}" if message
  arr_opts << '--amend' << '--no-edit' if opts[:amend]
  arr_opts << '--all' if opts[:add_all] || opts[:all]
  arr_opts << '--allow-empty' if opts[:allow_empty]
  arr_opts << "--author=#{opts[:author]}" if opts[:author]

  command('commit', arr_opts)
end

#commit_data(sha) ⇒ Object

returns useful array of raw commit object data



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# File 'lib/git/lib.rb', line 135

def commit_data(sha)
  sha = sha.to_s
  cdata = command_lines('cat-file', ['commit', sha])
  process_commit_data(cdata, sha, 0)
end

#commit_tree(tree, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 671

def commit_tree(tree, opts = {})
  opts[:message] ||= "commit tree #{tree}"
  t = Tempfile.new('commit-message')
  t.write(opts[:message])
  t.close

  arr_opts = []
  arr_opts << tree
  arr_opts << '-p' << opts[:parent] if opts[:parent]
  arr_opts += [opts[:parents]].map { |p| ['-p', p] }.flatten if opts[:parents]
  command('commit-tree', arr_opts, true, "< #{escape t.path}")
end

#config_get(name) ⇒ Object 



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# File 'lib/git/lib.rb', line 347

def config_get(name)
  do_get = lambda do |path|
    command('config', ['--get', name])
  end

  if @git_dir
    Dir.chdir(@git_dir, &do_get)
  else
    build_list.call
  end
end

#config_list ⇒ Object 



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# File 'lib/git/lib.rb', line 363

def config_list
  build_list = lambda do |path|
    parse_config_list command_lines('config', ['--list'])
  end

  if @git_dir
    Dir.chdir(@git_dir, &build_list)
  else
    build_list.call
  end
end

#config_remote(name) ⇒ Object 



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# File 'lib/git/lib.rb', line 337

def config_remote(name)
  hsh = {}
  config_list.each do |key, value|
    if /remote.#{name}/.match(key)
      hsh[key.gsub("remote.#{name}.", '')] = value
    end
  end
  hsh
end

#config_set(name, value) ⇒ Object

WRITE COMMANDS ##



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# File 'lib/git/lib.rb', line 394

def config_set(name, value)
  command('config', [name, value])
end

#conflicts ⇒ Object

:yields: file, your, their



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# File 'lib/git/lib.rb', line 564

def conflicts # :yields: file, your, their
  self.unmerged.each do |f|
    your = Tempfile.new("YOUR-#{File.basename(f)}").path
    command('show', ":2:#{f}", true, "> #{escape your}")

    their = Tempfile.new("THEIR-#{File.basename(f)}").path
    command('show', ":3:#{f}", true, "> #{escape their}")
    yield(f, your, their)
  end
end

#current_command_version ⇒ Object

returns the current version of git, as an Array of Fixnums.



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# File 'lib/git/lib.rb', line 726

def current_command_version
  output = command('version', [], false)
  version = output[/\d+\.\d+(\.\d+)+/]
  version.split('.').collect {|i| i.to_i}
end

#diff_files ⇒ Object

compares the index and the working directory



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# File 'lib/git/lib.rb', line 311

def diff_files
  diff_as_hash('diff-files')
end

#diff_full(obj1 = 'HEAD', obj2 = nil, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 281

def diff_full(obj1 = 'HEAD', obj2 = nil, opts = {})
  diff_opts = ['-p']
  diff_opts << obj1
  diff_opts << obj2 if obj2.is_a?(String)
  diff_opts << '--' << opts[:path_limiter] if opts[:path_limiter].is_a? String

  command('diff', diff_opts)
end

#diff_index(treeish) ⇒ Object

compares the index and the repository



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# File 'lib/git/lib.rb', line 316

def diff_index(treeish)
  diff_as_hash('diff-index', treeish)
end

#diff_stats(obj1 = 'HEAD', obj2 = nil, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 290

def diff_stats(obj1 = 'HEAD', obj2 = nil, opts = {})
  diff_opts = ['--numstat']
  diff_opts << obj1
  diff_opts << obj2 if obj2.is_a?(String)
  diff_opts << '--' << opts[:path_limiter] if opts[:path_limiter].is_a? String

  hsh = {:total => {:insertions => 0, :deletions => 0, :lines => 0, :files => 0}, :files => {}}

  command_lines('diff', diff_opts).each do |file|
    (insertions, deletions, filename) = file.split("\t")
    hsh[:total][:insertions] += insertions.to_i
    hsh[:total][:deletions] += deletions.to_i
    hsh[:total][:lines] = (hsh[:total][:deletions] + hsh[:total][:insertions])
    hsh[:total][:files] += 1
    hsh[:files][filename] = {:insertions => insertions.to_i, :deletions => deletions.to_i}
  end

  hsh
end

#fetch(remote, opts) ⇒ Object 



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# File 'lib/git/lib.rb', line 621

def fetch(remote, opts)
  arr_opts = [remote]
  arr_opts << '--tags' if opts[:t] || opts[:tags]

  command('fetch', arr_opts)
end

#full_log_commits(opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 98

def full_log_commits(opts={})
  arr_opts = log_common_options(opts)

  arr_opts << '--pretty=raw'
  arr_opts << "--skip=#{opts[:skip]}" if opts[:skip]

  arr_opts += log_path_options(opts)

  full_log = command_lines('log', arr_opts, true)

  process_commit_log_data(full_log)
end

#full_tree(sha) ⇒ Object 



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# File 'lib/git/lib.rb', line 224

def full_tree(sha)
  command_lines('ls-tree', ['-r', sha])
end

#gc ⇒ Object 



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# File 'lib/git/lib.rb', line 655

def gc
  command('gc', ['--prune', '--aggressive', '--auto'])
end

#global_config_get(name) ⇒ Object 



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# File 'lib/git/lib.rb', line 359

def global_config_get(name)
  command('config', ['--global', '--get', name], false)
end

#global_config_list ⇒ Object 



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# File 'lib/git/lib.rb', line 375

def global_config_list
  parse_config_list command_lines('config', ['--global', '--list'], false)
end

#global_config_set(name, value) ⇒ Object 



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# File 'lib/git/lib.rb', line 398

def global_config_set(name, value)
  command('config', ['--global', name, value], false)
end

#grep(string, opts = {}) ⇒ Object

returns hash

tree-ish

[[line_no, match], [line_no, match2]]

tree-ish

[[line_no, match], [line_no, match2]]



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# File 'lib/git/lib.rb', line 260

def grep(string, opts = {})
  opts[:object] ||= 'HEAD'

  grep_opts = ['-n']
  grep_opts << '-i' if opts[:ignore_case]
  grep_opts << '-v' if opts[:invert_match]
  grep_opts << '-e'
  grep_opts << string
  grep_opts << opts[:object] if opts[:object].is_a?(String)
  grep_opts << '--' << opts[:path_limiter] if opts[:path_limiter].is_a? String

  hsh = {}
  command_lines('grep', grep_opts).each do |line|
    if m = /(.*)\:(\d+)\:(.*)/.match(line)
      hsh[m[1]] ||= []
      hsh[m[1]] << [m[2].to_i, m[3]]
    end
  end
  hsh
end

#ignored_files ⇒ Object 



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# File 'lib/git/lib.rb', line 332

def ignored_files
  command_lines('ls-files', ['--others', '-i', '--exclude-standard'])
end

#init(opts = {}) ⇒ Object

creates or reinitializes the repository

options:

:bare
:working_directory



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# File 'lib/git/lib.rb', line 45

def init(opts={})
  arr_opts = []
  arr_opts << '--bare' if opts[:bare]

  command('init', arr_opts, false)
end

#list_files(ref_dir) ⇒ Object 



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# File 'lib/git/lib.rb', line 245

def list_files(ref_dir)
  dir = File.join(@git_dir, 'refs', ref_dir)
  files = []
  Dir.chdir(dir) { files = Dir.glob('**/*').select { |f| File.file?(f) } } rescue nil
  files
end

#log_commits(opts = {}) ⇒ Object

READ COMMANDS ##



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# File 'lib/git/lib.rb', line 88

def log_commits(opts={})
  arr_opts = log_common_options(opts)

  arr_opts << '--pretty=oneline'

  arr_opts += log_path_options(opts)

  command_lines('log', arr_opts, true).map { |l| l.split.first }
end

#ls_files(location = nil) ⇒ Object 



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# File 'lib/git/lib.rb', line 320

def ls_files(location=nil)
  hsh = {}
  command_lines('ls-files', ['--stage', location]).each do |line|
    (info, file) = line.split("\t")
    (mode, sha, stage) = info.split
    file = eval(file) if file =~ /^\".*\"$/ # This takes care of quoted strings returned from git
    hsh[file] = {:path => file, :mode_index => mode, :sha_index => sha, :stage => stage}
  end
  hsh
end

#ls_tree(sha) ⇒ Object 



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# File 'lib/git/lib.rb', line 208

def ls_tree(sha)
  data = {'blob' => {}, 'tree' => {}}

  command_lines('ls-tree', sha).each do |line|
    (info, filenm) = line.split("\t")
    (mode, type, sha) = info.split
    data[type][filenm] = {:mode => mode, :sha => sha}
  end

  data
end

#meets_required_version? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/git/lib.rb', line 736

def meets_required_version?
  (self.current_command_version <=>  self.required_command_version) >= 0
end

#merge(branch, message = nil) ⇒ Object 



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# File 'lib/git/lib.rb', line 549

def merge(branch, message = nil)
  arr_opts = []
  arr_opts << '-m' << message if message
  arr_opts += [branch]
  command('merge', arr_opts)
end

#mv(file1, file2) ⇒ Object 



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# File 'lib/git/lib.rb', line 220

def mv(file1, file2)
  command_lines('mv', ['--', file1, file2])
end

#namerev(string) ⇒ Object 



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# File 'lib/git/lib.rb', line 122

def namerev(string)
  command('name-rev', string).split[1]
end

#object_contents(sha, &block) ⇒ Object 



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# File 'lib/git/lib.rb', line 204

def object_contents(sha, &block)
  command('cat-file', ['-p', sha], &block)
end

#object_size(sha) ⇒ Object 



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# File 'lib/git/lib.rb', line 130

def object_size(sha)
  command('cat-file', ['-s', sha]).to_i
end

#object_type(sha) ⇒ Object 



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# File 'lib/git/lib.rb', line 126

def object_type(sha)
  command('cat-file', ['-t', sha])
end

#parse_config(file) ⇒ Object 



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# File 'lib/git/lib.rb', line 388

def parse_config(file)
  parse_config_list command_lines('config', ['--list', '--file', file], false)
end

#parse_config_list(lines) ⇒ Object 



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# File 'lib/git/lib.rb', line 379

def parse_config_list(lines)
  hsh = {}
  lines.each do |line|
    (key, *values) = line.split('=')
    hsh[key] = values.join('=')
  end
  hsh
end

#process_commit_data(data, sha = nil, indent = 4) ⇒ Object 



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# File 'lib/git/lib.rb', line 141

def process_commit_data(data, sha = nil, indent = 4)
  hsh = {
    'sha'     => sha,
    'message' => '',
    'parent'  => []
  }

  loop do
    key, *value = data.shift.split

    break if key.nil?

    if key == 'parent'
      hsh['parent'] << value.join(' ')
    else
      hsh[key] = value.join(' ')
    end
  end

  hsh['message'] = data.collect {|line| line[indent..-1]}.join("\n") + "\n"

  return hsh
end

#process_commit_log_data(data) ⇒ Object 



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# File 'lib/git/lib.rb', line 165

def process_commit_log_data(data)
  in_message = false

  hsh_array = []

  hsh = nil

  data.each do |line|
    line = line.chomp

    if line[0].nil?
      in_message = !in_message
      next
    end

    if in_message
      hsh['message'] << "#{line[4..-1]}\n"
      next
    end

    key, *value = line.split
    value = value.join(' ')

    case key
      when 'commit'
        hsh_array << hsh if hsh
        hsh = {'sha' => value, 'message' => '', 'parent' => []}
      when 'parent'
        hsh['parent'] << value
      else
        hsh[key] = value
    end
  end

  hsh_array << hsh if hsh

  return hsh_array
end

#pull(remote = 'origin', branch = 'master') ⇒ Object 



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# File 'lib/git/lib.rb', line 640

def pull(remote='origin', branch='master')
  command('pull', [remote, branch])
end

#push(remote, branch = 'master', opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 628

def push(remote, branch = 'master', opts = {})
  # Small hack to keep backwards compatibility with the 'push(remote, branch, tags)' method signature.
  opts = {:tags => opts} if [true, false].include?(opts)

  arr_opts = []
  arr_opts << '--force'  if opts[:force] || opts[:f]
  arr_opts << remote

  command('push', arr_opts + [branch])
  command('push', ['--tags'] + arr_opts) if opts[:tags]
end

#read_tree(treeish, opts = {}) ⇒ Object

reads a tree into the current index file



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# File 'lib/git/lib.rb', line 660

def read_tree(treeish, opts = {})
  arr_opts = []
  arr_opts << "--prefix=#{opts[:prefix]}" if opts[:prefix]
  arr_opts += [treeish]
  command('read-tree', arr_opts)
end

#remote_add(name, url, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 575

def remote_add(name, url, opts = {})
  arr_opts = ['add']
  arr_opts << '-f' if opts[:with_fetch] || opts[:fetch]
  arr_opts << '-t' << opts[:track] if opts[:track]
  arr_opts << '--'
  arr_opts << name
  arr_opts << url

  command('remote', arr_opts)
end

#remote_remove(name) ⇒ Object 



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# File 'lib/git/lib.rb', line 586

def remote_remove(name)
  command('remote', ['rm', name])
end

#remotes ⇒ Object 



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# File 'lib/git/lib.rb', line 590

def remotes
  command_lines('remote')
end

#remove(path = '.', opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 429

def remove(path = '.', opts = {})
  arr_opts = ['-f']  # overrides the up-to-date check by default
  arr_opts << ['-r'] if opts[:recursive]
  arr_opts << '--'
  if path.is_a?(Array)
    arr_opts += path
  else
    arr_opts << path
  end

  command('rm', arr_opts)
end

#repack ⇒ Object 



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# File 'lib/git/lib.rb', line 651

def repack
  command('repack', ['-a', '-d'])
end

#required_command_version ⇒ Object 



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# File 'lib/git/lib.rb', line 732

def required_command_version
  [1, 6]
end

#reset(commit, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 453

def reset(commit, opts = {})
  arr_opts = []
  arr_opts << '--hard' if opts[:hard]
  arr_opts << commit if commit
  command('reset', arr_opts)
end

#revert(commitish, opts = {}) ⇒ Object 



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# File 'lib/git/lib.rb', line 469

def revert(commitish, opts = {})
  # Forcing --no-edit as default since it's not an interactive session.
  opts = {:no_edit => true}.merge(opts)

  arr_opts = []
  arr_opts << '--no-edit' if opts[:no_edit]
  arr_opts << commitish

  command('revert', arr_opts)
end

#revparse(string) ⇒ Object 



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# File 'lib/git/lib.rb', line 111

def revparse(string)
  return string if string =~ /[A-Fa-f0-9]{40}/  # passing in a sha - just no-op it
  rev = ['head', 'remotes', 'tags'].map do |d|
    File.join(@git_dir, 'refs', d, string)
  end.find do |path|
    File.file?(path)
  end
  return File.read(rev).chomp if rev
  command('rev-parse', string)
end

#stash_apply(id = nil) ⇒ Object 



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# File 'lib/git/lib.rb', line 509

def stash_apply(id = nil)
  if id
    command('stash apply', [id])
  else
    command('stash apply')
  end
end

#stash_clear ⇒ Object 



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# File 'lib/git/lib.rb', line 517

def stash_clear
  command('stash clear')
end

#stash_list ⇒ Object 



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# File 'lib/git/lib.rb', line 521

def stash_list
  command('stash list')
end

#stash_save(message) ⇒ Object 



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# File 'lib/git/lib.rb', line 504

def stash_save(message)
  output = command('stash save', ['--', message])
  output =~ /HEAD is now at/
end

#stashes_all ⇒ Object 



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# File 'lib/git/lib.rb', line 492

def stashes_all
  arr = []
  filename = File.join(@git_dir, 'logs/refs/stash')
  if File.exist?(filename)
    File.open(filename).each_with_index { |line, i|
      m = line.match(/:(.*)$/)
      arr << [i, m[1].strip]
    }
  end
  arr
end

#tag(name, *opts) ⇒ Object 



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# File 'lib/git/lib.rb', line 598

def tag(name, *opts)
  target = opts[0].instance_of?(String) ? opts[0] : nil

  opts = opts.last.instance_of?(Hash) ? opts.last : {}

  if (opts[:a] || opts[:annotate]) && !(opts[:m] || opts[:message])
    raise  "Can not create an [:a|:annotate] tag without the precense of [:m|:message]."
  end

  arr_opts = []

  arr_opts << '-f' if opts[:force] || opts[:f]
  arr_opts << '-a' if opts[:a] || opts[:annotate]
  arr_opts << '-s' if opts[:s] || opts[:sign]
  arr_opts << '-d' if opts[:d] || opts[:delete]
  arr_opts << name
  arr_opts << target if target
  arr_opts << "-m #{opts[:m] || opts[:message]}" if opts[:m] || opts[:message]

  command('tag', arr_opts)
end

#tag_sha(tag_name) ⇒ Object 



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# File 'lib/git/lib.rb', line 644

def tag_sha(tag_name)
  head = File.join(@git_dir, 'refs', 'tags', tag_name)
  return File.read(head).chomp if File.exists?(head)

  command('show-ref',  ['--tags', '-s', tag_name])
end

#tags ⇒ Object 



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# File 'lib/git/lib.rb', line 594

def tags
  command_lines('tag')
end

#tree_depth(sha) ⇒ Object 



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# File 'lib/git/lib.rb', line 228

def tree_depth(sha)
  full_tree(sha).size
end

#unmerged ⇒ Object 



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# File 'lib/git/lib.rb', line 556

def unmerged
  unmerged = []
  command_lines('diff', ["--cached"]).each do |line|
    unmerged << $1 if line =~ /^\* Unmerged path (.*)/
  end
  unmerged
end

#update_ref(branch, commit) ⇒ Object 



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# File 'lib/git/lib.rb', line 684

def update_ref(branch, commit)
  command('update-ref', [branch, commit])
end

#write_tree ⇒ Object 



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# File 'lib/git/lib.rb', line 667

def write_tree
  command('write-tree')
end