Module: Hub::Commands

Extended by:
Commands, Context
Included in:
Commands
Defined in:
lib/hub/commands.rb

Overview

The Commands module houses the git commands that hub lovingly wraps. If a method exists here, it is expected to have a corresponding git command which either gets run before or after the method executes.

The typical flow is as follows:

  1. hub is invoked from the command line: $ hub clone rtomayko/tilt

  2. The Hub class is initialized: >> hub = Hub.new(‘clone’, ‘rtomayko/tilt’)

  3. The method representing the git subcommand is executed with the full args: >> Commands.clone(‘clone’, ‘rtomayko/tilt’)

  4. That method rewrites the args as it sees fit: >> args = “git://github.com/” + args + “.git”

    > “git://github.com/rtomayko/tilt.git”

  5. The new args are used to run ‘git`: >> exec “git”, “clone”, “git://github.com/rtomayko/tilt.git”

An optional ‘after` callback can be set. If so, it is run after step 5 (which then performs a `system` call rather than an `exec`). See `Hub::Args` for more information on the `after` callback.

Constant Summary collapse

NAME_RE = 
/\w[\w.-]*/
OWNER_RE = 
/[a-zA-Z0-9-]+/
NAME_WITH_OWNER_RE = 
/^(?:#{NAME_RE}|#{OWNER_RE}\/#{NAME_RE})$/
CUSTOM_COMMANDS = 
%w[alias create browse compare fork pull-request]

Constants included from Context

Hub::Context::NULL

Instance Method Summary collapse

Methods included from Hub::Context::System

#browser_launcher, #command?, #osx?, #which, #windows?

Methods included from Hub::Context::GitReaderMethods

extended

Instance Method Details

#alias(args) ⇒ Object 



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# File 'lib/hub/commands.rb', line 653

def alias(args)
  shells = %w[bash zsh sh ksh csh fish]

  script = !!args.delete('-s')
  shell = args[1] || ENV['SHELL']
  abort "hub alias: unknown shell" if shell.nil? or shell.empty?
  shell = File.basename shell

  unless shells.include? shell
    $stderr.puts "hub alias: unsupported shell"
    warn "supported shells: #{shells.join(' ')}"
    abort
  end

  if script
    puts "alias git=hub"
    if 'zsh' == shell
      puts "if type compdef >/dev/null; then"
      puts "   compdef hub=git"
      puts "fi"
    end
  else
    profile = case shell
      when 'bash' then '~/.bash_profile'
      when 'zsh'  then '~/.zshrc'
      when 'ksh'  then '~/.profile'
      else
        'your profile'
      end

    puts "# Wrap git automatically by adding the following to #{profile}:"
    puts
    puts 'eval "$(hub alias -s)"'
  end

  exit
end

#am(args) ⇒ Object Also known as: apply

$ hub am github.com/defunkt/hub/pull/55 > curl github.com/defunkt/hub/pull/55.patch -o /tmp/55.patch > git am /tmp/55.patch



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# File 'lib/hub/commands.rb', line 427

def am(args)
  if url = args.find { |a| a =~ %r{^https?://(gist\.)?github\.com/} }
    idx = args.index(url)
    gist = $1 == 'gist.'
    # strip the fragment part of the url
    url = url.sub(/#.+/, '')
    # strip extra path from "pull/42/files", "pull/42/commits"
    url = url.sub(%r{(/pull/\d+)/\w*$}, '\1') unless gist
    ext = gist ? '.txt' : '.patch'
    url += ext unless File.extname(url) == ext
    patch_file = File.join(ENV['TMPDIR'] || '/tmp', "#{gist ? 'gist-' : ''}#{File.basename(url)}")
    args.before 'curl', ['-#LA', "hub #{Hub::Version}", url, '-o', patch_file]
    args[idx] = patch_file
  end
end

#browse(args) ⇒ Object

$ hub browse > open github.com/CURRENT_REPO

$ hub browse – issues > open github.com/CURRENT_REPO/issues

$ hub browse pjhyett/github-services > open github.com/pjhyett/github-services

$ hub browse github-services > open github.com/YOUR_LOGIN/github-services

$ hub browse github-services wiki > open github.com/YOUR_LOGIN/github-services/wiki



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# File 'lib/hub/commands.rb', line 570

def browse(args)
  args.shift
  browse_command(args) do
    dest = args.shift
    dest = nil if dest == '--'

    if dest
      # $ hub browse pjhyett/github-services
      # $ hub browse github-services
      project = github_project dest
      branch = master_branch
    else
      # $ hub browse
      project = current_project
      branch = current_branch && current_branch.upstream || master_branch
    end

    abort "Usage: hub browse [<USER>/]<REPOSITORY>" unless project

    # $ hub browse -- wiki
    path = case subpage = args.shift
    when 'commits'
      "/commits/#{branch.short_name}"
    when 'tree', NilClass
      "/tree/#{branch.short_name}" if branch and !branch.master?
    else
      "/#{subpage}"
    end

    project.web_url(path)
  end
end

#checkout(args) ⇒ Object

$ git checkout github.com/defunkt/hub/pull/73 > git remote add -f -t feature git://github:com/mislav/hub.git > git checkout –track -B mislav-feature mislav/feature



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# File 'lib/hub/commands.rb', line 340

def checkout(args)
  _, url_arg, new_branch_name = args.words
  if url = resolve_github_url(url_arg) and url.project_path =~ /^pull\/(\d+)/
    pull_id = $1
    pull_data = api_client.pullrequest_info(url.project, pull_id)

    args.delete new_branch_name
    user, branch = pull_data['head']['label'].split(':', 2)
    abort "Error: #{user}'s fork is not available anymore" unless pull_data['head']['repo']
    new_branch_name ||= "#{user}-#{branch}"

    if remotes.include? user
      args.before ['remote', 'set-branches', '--add', user, branch]
      args.before ['fetch', user, "+refs/heads/#{branch}:refs/remotes/#{user}/#{branch}"]
    else
      url = github_project(url.project_name, user).git_url(:private => pull_data['head']['repo']['private'],
                                                           :https => https_protocol?)
      args.before ['remote', 'add', '-f', '-t', branch, user, url]
    end
    idx = args.index url_arg
    args.delete_at idx
    args.insert idx, '--track', '-B', new_branch_name, "#{user}/#{branch}"
  end
end

#cherry_pick(args) ⇒ Object

$ git cherry-pick github.com/mislav/hub/commit/a319d88#comments > git remote add -f mislav git://github.com/mislav/hub.git > git cherry-pick a319d88

$ git cherry-pick mislav@a319d88 > git remote add -f mislav git://github.com/mislav/hub.git > git cherry-pick a319d88

$ git cherry-pick mislav@SHA > git fetch mislav > git cherry-pick SHA



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# File 'lib/hub/commands.rb', line 401

def cherry_pick(args)
  unless args.include?('-m') or args.include?('--mainline')
    ref = args.words.last
    if url = resolve_github_url(ref) and url.project_path =~ /^commit\/([a-f0-9]{7,40})/
      sha = $1
      project = url.project
    elsif ref =~ /^(#{OWNER_RE})@([a-f0-9]{7,40})$/
      owner, sha = $1, $2
      project = local_repo.main_project.owned_by(owner)
    end

    if project
      args[args.index(ref)] = sha

      if remote = project.remote and remotes.include? remote
        args.before ['fetch', remote.to_s]
      else
        args.before ['remote', 'add', '-f', project.owner, project.git_url(:https => https_protocol?)]
      end
    end
  end
end

#clone(args) ⇒ Object

$ hub clone rtomayko/tilt > git clone git://github.com/rtomayko/tilt.

$ hub clone -p kneath/hemingway > git clone [email protected]:kneath/hemingway.git

$ hub clone tilt > git clone git://github.com/YOUR_LOGIN/tilt.

$ hub clone -p github > git clone [email protected]:YOUR_LOGIN/hemingway.git



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# File 'lib/hub/commands.rb', line 203

def clone(args)
  ssh = args.delete('-p')
  has_values = /^(--(upload-pack|template|depth|origin|branch|reference)|-[ubo])$/

  idx = 1
  while idx < args.length
    arg = args[idx]
    if arg.index('-') == 0
      idx += 1 if arg =~ has_values
    else
      # $ hub clone rtomayko/tilt
      # $ hub clone tilt
      if arg =~ NAME_WITH_OWNER_RE and !File.directory?(arg)
        name, owner = arg, nil
        owner, name = name.split('/', 2) if name.index('/')
        project = github_project(name, owner || github_user)
        ssh ||= args[0] != 'submodule' && project.owner == github_user(project.host) { }
        args[idx] = project.git_url(:private => ssh, :https => https_protocol?)
      end
      break
    end
    idx += 1
  end
end

#compare(args) ⇒ Object

$ hub compare 1.0..fix > open github.com/CURRENT_REPO/compare/1.0…fix $ hub compare refactor > open github.com/CURRENT_REPO/compare/refactor $ hub compare myfork feature > open github.com/myfork/REPO/compare/feature $ hub compare -u 1.0…2.0 “github.com/CURRENT_REPO/compare/1.0…2.0”



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# File 'lib/hub/commands.rb', line 611

def compare(args)
  args.shift
  browse_command(args) do
    if args.empty?
      branch = current_branch.upstream
      if branch and not branch.master?
        range = branch.short_name
        project = current_project
      else
        abort "Usage: hub compare [USER] [<START>...]<END>"
      end
    else
      sha_or_tag = /(\w{1,2}|\w[\w.-]+\w)/
      # replaces two dots with three: "sha1...sha2"
      range = args.pop.sub(/^#{sha_or_tag}\.\.#{sha_or_tag}$/, '\1...\2')
      project = if owner = args.pop then github_project(nil, owner)
                else current_project
                end
    end

    project.web_url "/compare/#{range}"
  end
end

#create(args) ⇒ Object

$ hub create … create repo on github … > git remote add -f origin [email protected]:YOUR_USER/CURRENT_REPO.git



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# File 'lib/hub/commands.rb', line 490

def create(args)
  if !is_repo?
    abort "'create' must be run from inside a git repository"
  else
    owner = github_user
    args.shift
    options = {}
    options[:private] = true if args.delete('-p')
    new_repo_name = nil

    until args.empty?
      case arg = args.shift
      when '-d'
        options[:description] = args.shift
      when '-h'
        options[:homepage] = args.shift
      else
        if arg =~ /^[^-]/ and new_repo_name.nil?
          new_repo_name = arg
          owner, new_repo_name = new_repo_name.split('/', 2) if new_repo_name.index('/')
        else
          abort "invalid argument: #{arg}"
        end
      end
    end
    new_repo_name ||= repo_name
    new_project = github_project(new_repo_name, owner)

    if api_client.repo_exists?(new_project)
      warn "#{new_project.name_with_owner} already exists on #{new_project.host}"
      action = "set remote origin"
    else
      action = "created repository"
      api_client.create_repo(new_project, options) unless args.noop?
    end

    url = new_project.git_url(:private => true, :https => https_protocol?)

    if remotes.first != 'origin'
      args.replace %W"remote add -f origin #{url}"
    else
      args.replace %W"remote -v"
    end

    args.after 'echo', ["#{action}:", new_project.name_with_owner]
  end
rescue GitHubAPI::Exceptions
  display_api_exception("creating repository", $!.response)
  exit 1
end

#fetch(args) ⇒ Object

$ hub fetch mislav > git remote add mislav git://github.com/mislav/REPO.git > git fetch mislav

$ hub fetch –multiple mislav xoebus > git remote add mislav … > git remote add xoebus … > git fetch –multiple mislav xoebus



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# File 'lib/hub/commands.rb', line 299

def fetch(args)
  # $ hub fetch --multiple <name1>, <name2>, ...
  if args.include?('--multiple')
    names = args.words[1..-1]
  # $ hub fetch <name>
  elsif remote_name = args.words[1]
    # $ hub fetch <name1>,<name2>,...
    if remote_name =~ /^\w+(,\w+)+$/
      index = args.index(remote_name)
      args.delete(remote_name)
      names = remote_name.split(',')
      args.insert(index, *names)
      args.insert(index, '--multiple')
    else
      names = [remote_name]
    end
  else
    names = []
  end

  projects = names.map { |name|
    unless name =~ /\W/ or remotes.include?(name) or remotes_group(name)
      project = github_project(nil, name)
      repo_info = api_client.repo_info(project)
      if repo_info.success?
        project.repo_data = repo_info.data
        project
      end
    end
  }.compact

  if projects.any?
    projects.each do |project|
      args.before ['remote', 'add', project.owner, project.git_url(:https => https_protocol?)]
    end
  end
end

#fork(args) ⇒ Object

$ hub fork … hardcore forking action … > git remote add -f YOUR_USER [email protected]:YOUR_USER/CURRENT_REPO.git



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# File 'lib/hub/commands.rb', line 462

def fork(args)
  unless project = local_repo.main_project
    abort "Error: repository under 'origin' remote is not a GitHub project"
  end
  forked_project = project.owned_by(github_user(project.host))

  if api_client.repo_exists?(forked_project)
    abort "Error creating fork: %s already exists on %s" %
      [ forked_project.name_with_owner, forked_project.host ]
  else
    api_client.fork_repo(project) unless args.noop?
  end

  if args.include?('--no-remote')
    exit
  else
    url = forked_project.git_url(:private => true, :https => https_protocol?)
    args.replace %W"remote add -f #{forked_project.owner} #{url}"
    args.after 'echo', ['new remote:', forked_project.owner]
  end
rescue GitHubAPI::Exceptions
  display_api_exception("creating fork", $!.response)
  exit 1
end

#help(args) ⇒ Object Also known as: --help

$ hub help (print improved help text)



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# File 'lib/hub/commands.rb', line 701

def help(args)
  command = args.words[1]

  if command == 'hub'
    puts hub_manpage
    exit
  elsif command.nil? && !args.has_flag?('-a', '--all')
    ENV['GIT_PAGER'] = '' unless args.has_flag?('-p', '--paginate') # Use `cat`.
    puts improved_help_text
    exit
  end
end

#hub(args) ⇒ Object

$ hub hub standalone Prints the “standalone” version of hub for an easy, memorable installation sequence:

$ gem install hub $ hub hub standalone > ~/bin/hub && chmod 755 ~/bin/hub $ gem uninstall hub



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# File 'lib/hub/commands.rb', line 642

def hub(args)
  return help(args) unless args[1] == 'standalone'
  require 'hub/standalone'
  Hub::Standalone.build $stdout
  exit
rescue LoadError
  abort "hub is already running in standalone mode."
rescue Errno::EPIPE
  exit # ignore broken pipe
end

#init(args) ⇒ Object

$ hub init -g > git init > git remote add origin [email protected]:USER/REPO.git



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# File 'lib/hub/commands.rb', line 451

def init(args)
  if args.delete('-g')
    project = github_project(File.basename(current_dir))
    url = project.git_url(:private => true, :https => https_protocol?)
    args.after ['remote', 'add', 'origin', url]
  end
end

#merge(args) ⇒ Object

$ git merge github.com/defunkt/hub/pull/73 > git fetch git://github.com/mislav/hub.git +refs/heads/feature:refs/remotes/mislav/feature > git merge mislav/feature –no-ff -m ‘Merge pull request #73 from mislav/feature…’



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# File 'lib/hub/commands.rb', line 368

def merge(args)
  _, url_arg = args.words
  if url = resolve_github_url(url_arg) and url.project_path =~ /^pull\/(\d+)/
    pull_id = $1
    pull_data = api_client.pullrequest_info(url.project, pull_id)

    user, branch = pull_data['head']['label'].split(':', 2)
    abort "Error: #{user}'s fork is not available anymore" unless pull_data['head']['repo']

    url = github_project(url.project_name, user).git_url(:private => pull_data['head']['repo']['private'],
                                                         :https => https_protocol?)

    merge_head = "#{user}/#{branch}"
    args.before ['fetch', url, "+refs/heads/#{branch}:refs/remotes/#{merge_head}"]

    idx = args.index url_arg
    args.delete_at idx
    args.insert idx, merge_head, '--no-ff', '-m',
                "Merge pull request ##{pull_id} from #{merge_head}\n\n#{pull_data['title']}"
  end
end

#pull_request(args) ⇒ Object

$ hub pull-request $ hub pull-request “My humble contribution” $ hub pull-request -i 92 $ hub pull-request github.com/rtomayko/tilt/issues/92



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# File 'lib/hub/commands.rb', line 77

def pull_request(args)
  args.shift
  options = { }
  force = explicit_owner = false
  base_project = local_repo.main_project
  head_project = local_repo.current_project

  unless base_project
    abort "Aborted: the origin remote doesn't point to a GitHub repository."
  end

  from_github_ref = lambda do |ref, context_project|
    if ref.index(':')
      owner, ref = ref.split(':', 2)
      project = github_project(context_project.name, owner)
    end
    [project || context_project, ref]
  end

  while arg = args.shift
    case arg
    when '-f'
      force = true
    when '-b'
      base_project, options[:base] = from_github_ref.call(args.shift, base_project)
    when '-h'
      head = args.shift
      explicit_owner = !!head.index(':')
      head_project, options[:head] = from_github_ref.call(head, head_project)
    when '-i'
      options[:issue] = args.shift
    else
      if url = resolve_github_url(arg) and url.project_path =~ /^issues\/(\d+)/
        options[:issue] = $1
        base_project = url.project
      elsif !options[:title] then options[:title] = arg
      else
        abort "invalid argument: #{arg}"
      end
    end
  end

  options[:project] = base_project
  options[:base] ||= master_branch.short_name

  if tracked_branch = options[:head].nil? && current_branch.upstream
    if !tracked_branch.remote?
      # The current branch is tracking another local branch. Pretend there is
      # no upstream configuration at all.
      tracked_branch = nil
    elsif base_project == head_project and tracked_branch.short_name == options[:base]
      $stderr.puts "Aborted: head branch is the same as base (#{options[:base].inspect})"
      warn "(use `-h <branch>` to specify an explicit pull request head)"
      abort
    end
  end
  options[:head] ||= (tracked_branch || current_branch).short_name

  # when no tracking, assume remote branch is published under active user's fork
  user = github_user(head_project.host)
  if head_project.owner != user and !tracked_branch and !explicit_owner
    head_project = head_project.owned_by(user)
  end

  remote_branch = "#{head_project.remote}/#{options[:head]}"
  options[:head] = "#{head_project.owner}:#{options[:head]}"

  if !force and tracked_branch and local_commits = rev_list(remote_branch, nil)
    $stderr.puts "Aborted: #{local_commits.split("\n").size} commits are not yet pushed to #{remote_branch}"
    warn "(use `-f` to force submit a pull request anyway)"
    abort
  end

  if args.noop?
    puts "Would request a pull to #{base_project.owner}:#{options[:base]} from #{options[:head]}"
    exit
  end

  unless options[:title] or options[:issue]
    base_branch = "#{base_project.remote}/#{options[:base]}"
    commits = rev_list(base_branch, remote_branch).to_s.split("\n")

    case commits.size
    when 0
      default_message = commit_summary = nil
    when 1
      format = '%w(78,0,0)%s%n%+b'
      default_message = git_command "show -s --format='#{format}' #{commits.first}"
      commit_summary = nil
    else
      format = '%h (%aN, %ar)%n%w(78,3,3)%s%n%+b'
      default_message = nil
      commit_summary = git_command "log --no-color --format='%s' --cherry %s...%s" %
        [format, base_branch, remote_branch]
    end

    options[:title], options[:body] = pullrequest_editmsg(commit_summary) { |msg|
      msg.puts default_message if default_message
      msg.puts ""
      msg.puts "# Requesting a pull to #{base_project.owner}:#{options[:base]} from #{options[:head]}"
      msg.puts "#"
      msg.puts "# Write a message for this pull request. The first block"
      msg.puts "# of text is the title and the rest is description."
    }
  end

  pull = api_client.create_pullrequest(options)

  args.executable = 'echo'
  args.replace [pull['html_url']]
rescue GitHubAPI::Exceptions
  display_api_exception("creating pull request", $!.response)
  exit 1
end

#push(args) ⇒ Object

$ hub push origin,staging cool-feature > git push origin cool-feature > git push staging cool-feature



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# File 'lib/hub/commands.rb', line 544

def push(args)
  return if args[1].nil? || !args[1].index(',')

  branch  = (args[2] ||= current_branch.short_name)
  remotes = args[1].split(',')
  args[1] = remotes.shift

  remotes.each do |name|
    args.after ['push', name, branch]
  end
end

#remote(args) ⇒ Object

$ hub remote add pjhyett > git remote add pjhyett git://github.com/pjhyett/THIS_REPO.git

$ hub remote add -p mojombo > git remote add mojombo [email protected]:mojombo/THIS_REPO.git

$ hub remote add origin > git remote add origin git://github.com/YOUR_LOGIN/THIS_REPO.git



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# File 'lib/hub/commands.rb', line 262

def remote(args)
  if %w[add set-url].include?(args[1])
    name = args.last
    if name =~ /^(#{OWNER_RE})$/ || name =~ /^(#{OWNER_RE})\/(#{NAME_RE})$/
      user, repo = $1, $2 || repo_name
    end
  end
  return unless user # do not touch arguments

  ssh = args.delete('-p')

  if args.words[2] == 'origin' && args.words[3].nil?
    # Origin special case triggers default user/repo
    user, repo = github_user, repo_name
  elsif args.words[-2] == args.words[1]
    # rtomayko/tilt => rtomayko
    # Make sure you dance around flags.
    idx = args.index( args.words[-1] )
    args[idx] = user
  else
    # They're specifying the remote name manually (e.g.
    # git remote add blah rtomayko/tilt), so just drop the last
    # argument.
    args.pop
  end

  args << git_url(user, repo, :private => ssh)
end

#run(args) ⇒ Object 



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# File 'lib/hub/commands.rb', line 43

def run(args)
  slurp_global_flags(args)

  # Hack to emulate git-style
  args.unshift 'help' if args.empty?

  cmd = args[0]
  if expanded_args = expand_alias(cmd)
    cmd = expanded_args[0]
    expanded_args.concat args[1..-1]
  end

  respect_help_flags(expanded_args || args) if custom_command? cmd

  # git commands can have dashes
  cmd = cmd.gsub(/(\w)-/, '\1_')
  if method_defined?(cmd) and cmd != 'run'
    args.replace expanded_args if expanded_args
    send(cmd, args)
  end
rescue Errno::ENOENT
  if $!.message.include? "No such file or directory - git"
    abort "Error: `git` command not found"
  else
    raise
  end
rescue Context::FatalError => err
  abort "fatal: #{err.message}"
end

#submodule(args) ⇒ Object

$ hub submodule add wycats/bundler vendor/bundler > git submodule add git://github.com/wycats/bundler.git vendor/bundler

$ hub submodule add -p wycats/bundler vendor/bundler > git submodule add [email protected]:wycats/bundler.git vendor/bundler

$ hub submodule add -b ryppl ryppl/pip vendor/bundler > git submodule add -b ryppl git://github.com/ryppl/pip.git vendor/pip



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# File 'lib/hub/commands.rb', line 236

def submodule(args)
  return unless index = args.index('add')
  args.delete_at index

  branch = args.index('-b') || args.index('--branch')
  if branch
    args.delete_at branch
    branch_name = args.delete_at branch
  end

  clone(args)

  if branch_name
    args.insert branch, '-b', branch_name
  end
  args.insert index, 'add'
end

#version(args) ⇒ Object Also known as: --version

$ hub version > git version (print hub version)



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# File 'lib/hub/commands.rb', line 694

def version(args)
  args.after 'echo', ['hub version', Version]
end