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如何找到安裝gem文件的位置？

2013-09-28 44 views
175

我可以通過命令gem list找到安裝的寶石，但它並不顯示我安裝寶石的位置。如何找到安裝gem文件的位置？

如何才能找到寶石的位置以及如何在安裝寶石之前知道安裝寶石的位置？

來源

2013-09-28 ironsand

回答

248

使用gem environment，瞭解你的寶石環境：

RubyGems Environment: 
    - RUBYGEMS VERSION: 2.1.5 
    - RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.4.0] 
    - INSTALLATION DIRECTORY: /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0 
    - RUBY EXECUTABLE: /Users/ttm/.rbenv/versions/2.0.0-p247/bin/ruby 
    - EXECUTABLE DIRECTORY: /Users/ttm/.rbenv/versions/2.0.0-p247/bin 
    - SPEC CACHE DIRECTORY: /Users/ttm/.gem/specs 
    - RUBYGEMS PLATFORMS: 
    - ruby 
    - x86_64-darwin-12 
    - GEM PATHS: 
    - /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0 
    - /Users/ttm/.gem/ruby/2.0.0 
    - GEM CONFIGURATION: 
    - :update_sources => true 
    - :verbose => true 
    - :backtrace => false 
    - :bulk_threshold => 1000 
    - REMOTE SOURCES: 
    - https://rubygems.org/ 
    - SHELL PATH: 
    - /Users/ttm/.rbenv/versions/2.0.0-p247/bin 
    - /Users/ttm/.rbenv/libexec 
    - /Users/ttm/.rbenv/plugins/ruby-build/bin 
    - /Users/ttm/perl5/perlbrew/bin 
    - /Users/ttm/perl5/perlbrew/perls/perl-5.18.1/bin 
    - /Users/ttm/.pyenv/shims 
    - /Users/ttm/.pyenv/bin 
    - /Users/ttm/.rbenv/shims 
    - /Users/ttm/.rbenv/bin 
    - /Users/ttm/bin 
    - /usr/local/mysql-5.6.12-osx10.7-x86_64/bin 
    - /Users/ttm/libsmi/bin 
    - /usr/local/bin 
    - /usr/bin 
    - /bin 
    - /usr/sbin 
    - /sbin 
    - /usr/local/bin

注意的兩節適用於：

  • INSTALLATION DIRECTORY件
  • GEM PATHS

來源

2013-09-28 22:04:46

+0

感謝您的信息！在我的環境中，似乎'GEM PATHS'只用於第一個。是對的嗎？ – ironsand

+2

'gem env'簡稱 – zanderwar

20

您可以通過運行gem help commands，然後選擇合適的命令從命令提示符檢查：

[email protected]:~$ gem help commands 
GEM commands are: 

    build     Build a gem from a gemspec 
    cert     Manage RubyGems certificates and signing settings 
    check     Check a gem repository for added or missing files 
    cleanup    Clean up old versions of installed gems in the local 
          repository 
    contents    Display the contents of the installed gems 
    dependency    Show the dependencies of an installed gem 
    environment   Display information about the RubyGems environment 
    fetch     Download a gem and place it in the current directory 
    generate_index   Generates the index files for a gem server directory 
    help     Provide help on the 'gem' command 
    install    Install a gem into the local repository 
    list     Display gems whose name starts with STRING 
    lock     Generate a lockdown list of gems 
    mirror     Mirror all gem files (requires rubygems-mirror) 
    outdated    Display all gems that need updates 
    owner     Manage gem owners on RubyGems.org. 
    pristine    Restores installed gems to pristine condition from 
          files located in the gem cache 
    push     Push a gem up to RubyGems.org 
    query     Query gem information in local or remote repositories 
    rdoc     Generates RDoc for pre-installed gems 
    regenerate_binstubs Re run generation of executable wrappers for gems. 
    search     Display all gems whose name contains STRING 
    server     Documentation and gem repository HTTP server 
    sources    Manage the sources and cache file RubyGems uses to 
          search for gems 
    specification   Display gem specification (in yaml) 
    stale     List gems along with access times 
    uninstall    Uninstall gems from the local repository 
    unpack     Unpack an installed gem to the current directory 
    update     Update installed gems to the latest version 
    which     Find the location of a library file you can require 
    yank     Remove a specific gem version release from 
          RubyGems.org 

For help on a particular command, use 'gem help COMMAND'. 

Commands may be abbreviated, so long as they are unambiguous. 
e.g. 'gem i rake' is short for 'gem install rake'. 
[email protected]:~$

現在從上面可以看我的命令environment是很有幫助的。所以，我會做：

[email protected]:~$ gem help environment 
Usage: gem environment [arg] [options] 


    Common Options: 
    -h, --help      Get help on this command 
    -V, --[no-]verbose    Set the verbose level of output 
    -q, --quiet      Silence commands 
     --config-file FILE   Use this config file instead of default 
     --backtrace     Show stack backtrace on errors 
     --debug      Turn on Ruby debugging 


    Arguments: 
    packageversion display the package version 
    gemdir   display the path where gems are installed 
    gempath   display path used to search for gems 
    version   display the gem format version 
    remotesources display the remote gem servers 
    platform  display the supported gem platforms 
    <omitted>  display everything 

    Summary: 
    Display information about the RubyGems environment 

    Description: 
    The RubyGems environment can be controlled through command line arguments, 
    gemrc files, environment variables and built-in defaults. 

    Command line argument defaults and some RubyGems defaults can be set in a 
    ~/.gemrc file for individual users and a /etc/gemrc for all users. These 
    files are YAML files with the following YAML keys: 

     :sources: A YAML array of remote gem repositories to install gems from 
     :verbose: Verbosity of the gem command. false, true, and :really are the 
       levels 
     :update_sources: Enable/disable automatic updating of repository metadata 
     :backtrace: Print backtrace when RubyGems encounters an error 
     :gempath: The paths in which to look for gems 
     :disable_default_gem_server: Force specification of gem server host on 
    push 
     <gem_command>: A string containing arguments for the specified gem command 

    Example: 

     :verbose: false 
     install: --no-wrappers 
     update: --no-wrappers 
     :disable_default_gem_server: true 

    RubyGems' default local repository can be overridden with the GEM_PATH and 
    GEM_HOME environment variables. GEM_HOME sets the default repository to 
    install into. GEM_PATH allows multiple local repositories to be searched for 
    gems. 

    If you are behind a proxy server, RubyGems uses the HTTP_PROXY, 
    HTTP_PROXY_USER and HTTP_PROXY_PASS environment variables to discover the 
    proxy server. 

    If you would like to push gems to a private gem server the RUBYGEMS_HOST 
    environment variable can be set to the URI for that server. 

    If you are packaging RubyGems all of RubyGems' defaults are in 
    lib/rubygems/defaults.rb. You may override these in 
    lib/rubygems/defaults/operating_system.rb 
[email protected]:~$

最後向你展示你的要求，我會做：

[email protected]:~$ gem environment gemdir 
/home/kirti/.rvm/gems/ruby-2.0.0-p0 
[email protected]:~$ gem environment gempath 
/home/kirti/.rvm/gems/ruby-2.0.0-p0:/home/kirti/.rvm/gems/[email protected] 
[email protected]:~$

來源

2013-09-28 21:57:03

+1

謝謝！我不知道'gem help命令'。我應該寫我正在使用rbenv。 – ironsand

9

gem env作品就像gem environment。保存一些輸入。

# gem env 
RubyGems Environment: 
    - RUBYGEMS VERSION: 2.0.14 
    - RUBY VERSION: 2.0.0 (2014-02-24 patchlevel 451) [i686-linux] 
    - INSTALLATION DIRECTORY: /usr/local/lib/ruby/gems/2.0.0 
    - RUBY EXECUTABLE: /usr/local/bin/ruby 
    - EXECUTABLE DIRECTORY: /usr/local/bin 
    - RUBYGEMS PLATFORMS: 
    - ruby 
    - x86-linux 
    - GEM PATHS: 
    - /usr/local/lib/ruby/gems/2.0.0 
    - /root/.gem/ruby/2.0.0 
    - GEM CONFIGURATION: 
    - :update_sources => true 
    - :verbose => true 
    - :backtrace => false 
    - :bulk_threshold => 1000 
    - REMOTE SOURCES: 
    - https://rubygems.org/

來源

2014-04-23 04:50:51 slayedbylucifer

46

安裝寶石後，如果你想知道某個特定寶石的位置。嘗試輸入：

gem list

您將能夠看到已安裝的寶石列表。現在使用bundle show和名字，你想知道該路徑的寶石，如：

bundle show <gemName>

來源

2015-01-11 13:24:43 ishanbakshi

+1

我不確定這是否適用於所有目錄。我運行這個命令並得到'找不到Gemfile或.bundle /目錄。 –

+1

這是最好的方式，因爲它顯示完整路徑，（而'gem env'）只顯示'gems'文件夾的父文件夾：'/home/test/.rbenv/versions/2.5.0/lib/ruby/寶石/ 2.5.0'。裏面有很多文件夾，你的寶石可能位於幾乎任何一個文件夾中 - 這就是'bundle show '精確地顯示（和'gem env'）不顯示的內容。 – prograils

42

要完成其他的答案中，gem-path寶石可以找到一個特定的寶石的安裝路徑。

安裝：

gem install gem-path

用法：

gem path rails 
=> /home/cbliard/.rvm/gems/ruby-2.1.5/gems/rails-4.0.13 
gem path rails '< 4' 
=> /home/cbliard/.rvm/gems/ruby-2.1.5/gems/rails-3.2.21

這是非常方便的，你可以用它來用grep或編輯文件：

grep -R 'Internal server error' "$(gem path thin)" 
subl "$(gem path thin)"

來源

2015-02-27 09:16:18 cbliard

83

我認爲應該得到庫文件的位置：

gem which *gemname*

來源

2015-07-21 13:39:53

+3

這是一個非常好的簡單方法，不需要捆綁器（儘管我喜歡捆綁器:-)。 – antinome

+3

這是我認爲最有用的答案，謝謝！ – jmm

+1

最簡單的答案，不需要導軌或捆綁器！好一個！ – lacostenycoder

-1

在MAC OS，屬於寶石Ruby文件存在於

/Library/Ruby/Gems/<Ruby_Version>/gems

目錄。

您可以通過使用命令獲得對應於寶石的文件的位置：

gem contents <gem_name>

來源

2015-08-26 09:07:18 yottabytt

0

我想這RVM（和rbenv）保存路徑寶石的家變成一個環境變量。如果我運行

env | grep GEM_

我得到

我認爲$ GEM_HOME是你有興趣

的位置G EMS將被安裝到$ GEM_HOME 「/寶石」

來源

2017-05-11 16:27:18 Hirurg103

0

你就可以欺騙gem open到顯示創業板路徑：

VISUAL=echo gem open gem-name

例子：

VISUAL=echo gem open rails 
=> /usr/local/opt/asdf/installs/ruby/2.4.3/lib/ruby/gems/2.4.0/gems/rails-5.1.4

來源

2018-02-25 20:32:57

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