Ruby 了解$PATH变量：已安装的gem不在PATH中

早上好

我正在研究ruby gem。到目前为止，gem还没有被推到任何服务器上——目前都是本地开发的

我想在构建gem时测试它（使用TTD）。我已经运行了

bundle-exe-rake-build

和

bundle-exe-rake-install

来在本地环境中构建和安装gem。我现在希望，当我在终端中的任何位置键入

gem\u name

时，应该能够识别

gem\u name

。不幸的是，事实并非如此；相反，我得到了以下错误：

    `$ -bash gem_name: command not found`

我能做的唯一一件事可能是我的道路出现了一些问题

下面是我的$PATH的输出：

    echo $PATH
    /Users/throw/.rvm/gems/ruby-2.2.1/bin:
    /Users/throw/.rvm/gems/ruby-2.2.1@global/bin:
    /Users/throw/.rvm/rubies/ruby-2.2.1/bin:
    /usr/local:/usr/local/bin:
   /usr/local/sbin:/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:
   /usr/local/git/bin:/Users/throw/.rvm/bin:/Users/throw/.nvm/nvm.sh:
  /Users/throw/.node/bin:/Applications/Postgres.app/Contents/9.5.0.0/latest/bin

下面是命令的输出

gem env

：

    gem env
    RubyGems Environment:
      - RUBYGEMS VERSION: 2.5.1
      - RUBY VERSION: 2.2.1 (2015-02-26 patchlevel 85) [x86_64-darwin14]
      - INSTALLATION DIRECTORY: /Users/throw/.rvm/gems/ruby-2.2.1
      - USER INSTALLATION DIRECTORY: /Users/throw/.gem/ruby/2.2.0
      - RUBY EXECUTABLE: /Users/throw/.rvm/rubies/ruby-2.2.1/bin/ruby
      - EXECUTABLE DIRECTORY: /Users/throw/.rvm/gems/ruby-2.2.1/bin
      - SPEC CACHE DIRECTORY: /Users/throw/.gem/specs
      - SYSTEM CONFIGURATION DIRECTORY: /Users/throw/.rvm/rubies/ruby-2.2.1/etc
      - RUBYGEMS PLATFORMS:
        - ruby
        - x86_64-darwin-14
      - GEM PATHS:
         - /Users/throw/.rvm/gems/ruby-2.2.1
         - /Users/throw/.rvm/gems/ruby-2.2.1@global
      - GEM CONFIGURATION:
         - :update_sources => true
         - :verbose => true
         - :backtrace => false
         - :bulk_threshold => 1000
      - REMOTE SOURCES:
         - https://rubygems.org/
      - SHELL PATH:
         - /Users/throw/.rvm/gems/ruby-2.2.1/bin
         - /Users/throw/.rvm/gems/ruby-2.2.1@global/bin
         - /Users/throw/.rvm/rubies/ruby-2.2.1/bin
         - /usr/local
         - /usr/local/bin
         - /usr/local/sbin
         - /usr/bin
         - /usr/local/bin
         - /usr/bin
         - /bin
         - /usr/sbin
         - /sbin
         - /usr/local/git/bin
         - /Users/throw/.rvm/bin
         - /Users/throw/.nvm/nvm.sh
         - /Users/throw/.node/bin
         - /Applications/Postgres.app/Contents/9.5.0.0/latest/bin

到目前为止，我认为

gem\u name

path包含在我的

$path

中，但我不知道。。。我错过什么了吗

以下是gem\u name.gempec的内容：

    # coding: utf-8
    lib = File.expand_path('../lib', __FILE__)
    $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
    require 'instructortools/version'

    Gem::Specification.new do |spec|
      spec.name          = "instructortools"
      spec.version       = Instructortools::VERSION
      spec.authors       = ["Throw"]
      spec.email         = ["throw@gmail.com"]

      spec.summary       = %q{The command line interface instructor tools}
      spec.homepage      = "https://github.com/throw/instructortools-gem"
      spec.license       = "MIT"

      # Prevent pushing this gem to RubyGems.org by setting 'allowed_push_host', or
      # delete this section to allow pushing this gem to any host.
      if spec.respond_to?(:metadata)
        spec.metadata['allowed_push_host'] = "TODO: Set to 'http://mygemserver.com'"
      else
        raise "RubyGems 2.0 or newer is required to protect against public gem pushes."
      end

      spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
      spec.bindir        = "exe"
      spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
      spec.require_paths = ["lib"]

      spec.add_development_dependency "bundler", "~> 1.11"
      spec.add_development_dependency "rake", "~> 10.0"
      spec.add_development_dependency "rspec", "~> 3.0"
      spec.add_development_dependency "pry"

      spec.add_runtime_dependency "thor"
    end

我有一个包含以下行的exe目录：

    #!/usr/bin/env ruby

    require "instructortools"

    Instructortools::CLI.start(ARGV)

---

谢谢大家!

您应该在gempec中提到您的可执行文件，如下所示：

spec.bindir "exe"
spec.executables ["your_script_name"]

因此，在安装rubygems时，rubygems会将其复制到

/Users/throw/.rvm/gems/ruby-2.2.1/bin

上的

$PATH

编辑：

---

您的gempec从

git ls files

中获取文件列表，因此在gem构建之前，应提交所有文件，以便将其包含在gem中。

您的意思是gem包含一些应安装在path中的可执行脚本吗？是@Vasfed。我编辑了我的问题以解决您的问题。

git ls files | grep-E“^exe”

显示了什么？@Vasfed:我运行该命令时没有得到任何输出。这个命令应该在我的~/.bash_档案中吗？嗨@Vasfed！编辑我的问题以包含我的

gempec

（它包括

spec.bindir“exe”

和

spec.executables

。感谢你的帮助！感谢：）@userthrow似乎你还没有提交你的可执行文件，所以它不在

git ls文件中，所以提交并构建gem，它可能丢失了更多的文件