从gem运行可执行文件时出错，因为另一个gem不包含在包中

Question

我正在创建一个将ruby-git（ https://github.com/schacon/ruby-git ）作为依赖项的gem（请参阅https://github.com/hamchapman/rewinder ）。

我的gem的一部分具有可执行文件https://github.com/hamchapman/rewinder/blob/master/bin/rewinder

它基本上只需要主库文件https://github.com/hamchapman/rewinder/blob/master/lib/rewinder.rb

然后在此处运行该方法（此刻一切都很混乱-现在暂时忽略该方法）。

当我在本地安装gem并将其在另一个仓库中使用时，出现以下错误：

/Users/Hami/.rvm/gems/ruby-2.1.2/gems/git-1.2.7/lib/git/lib.rb:764:in `command': git checkout '6eef72baf24bed761f753267cce16402e4a947f8'  2>&1:Note: checking out '6eef72baf24bed761f753267cce16402e4a947f8'. (Git::GitExecuteError)

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b new_branch_name

HEAD is now at 6eef72b... Trying another bg-color change for homeboy
/Users/Hami/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.6.2/lib/bundler/rubygems_integration.rb:252:in `block in replace_gem': hookup is not part of the bundle. Add it to Gemfile. (Gem::LoadError)
    from /Users/Hami/.rvm/gems/ruby-2.1.2/bin/hookup:22:in `<main>'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `eval'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `<main>'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/gems/git-1.2.7/lib/git/lib.rb:528:in `checkout'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/gems/git-1.2.7/lib/git/base.rb:325:in `checkout'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/gems/rewinder-0.0.1/lib/rewinder.rb:11:in `block in heloo'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/gems/rewinder-0.0.1/lib/rewinder.rb:10:in `each'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/gems/rewinder-0.0.1/lib/rewinder.rb:10:in `each_with_index'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/gems/rewinder-0.0.1/lib/rewinder.rb:10:in `heloo'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/gems/rewinder-0.0.1/bin/rewinder:4:in `<top (required)>'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/bin/rewinder:23:in `load'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/bin/rewinder:23:in `<main>'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `eval'
    from /Users/Hami/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `<main>'

我真的不理解的错误看到，因为既不是我的宝石，也不是红宝石git的宝石已经hookup作为一个依赖。 如果我加载文件/Users/Hami/.rvm/gems/ruby-2.1.2/bin/hookup

然后像这样注释掉下面两行：

#!/usr/bin/env ruby_executable_hooks
#
# This file was generated by RubyGems.
#
# The application 'hookup' is installed as part of a gem, and
# this file is here to facilitate running it.
#

require 'rubygems'

version = ">= 0"

if ARGV.first
  str = ARGV.first
  str = str.dup.force_encoding("BINARY") if str.respond_to? :force_encoding
  if str =~ /\A_(.*)_\z/ and Gem::Version.correct?($1) then
    version = $1
    ARGV.shift
  end
end

#gem 'hookup', version
#load Gem.bin_path('hookup', 'hookup', version)

那么就不会发生错误。

从我阅读的内容来看，似乎与oh-my-zsh如何包装某些命令有关-也许是在包装git命令？

有什么建议么？

Answer 1

从连接文档中 ：

每次您当前的HEAD更改时，连接都会检查您的Gemfile ， Gemfile.lock或gem规范是否已更改。 如果是这样，它将运行捆绑软件检查，并且如果这表明不满足任何依赖性，它将运行捆绑软件安装。

由此我可以得知，gem监听了git checkout事件。 由于您在代码中执行了此操作，因此连接挂钩变得栩栩如生，并且变得混乱（无论它是否是您的ruby应用程序的一部分）。

尝试卸载gem，然后重试。

如果这样可以解决您的问题，则可以考虑向gem的作者提出问题以解决此问题。