This file is indexed.

/usr/lib/ruby/vendor_ruby/bundler/man/bundle-exec.txt is in ruby-bundler 1.13.6-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
BUNDLE-EXEC(1)							BUNDLE-EXEC(1)



NAME
       bundle-exec - Execute a command in the context of the bundle

SYNOPSIS
       bundle exec [--keep-file-descriptors] command

DESCRIPTION
       This  command  executes	the  command, making all gems specified in the
       Gemfile(5) available to require in Ruby programs.

       Essentially, if you  would  normally  have  run	something  like  rspec
       spec/my_spec.rb,  and  you  want  to use the gems specified in the Gem-
       file(5) and installed via bundle install(1) bundle-install.1.html,  you
       should run bundle exec rspec spec/my_spec.rb.

       Note  that bundle exec does not require that an executable is available
       on your shell's $PATH.

OPTIONS
       --keep-file-descriptors
	      Exec in Ruby 2.0 began discarding non-standard file descriptors.
	      When  this flag is passed, exec will revert to the 1.9 behaviour
	      of passing all file descriptors to the new process.

BUNDLE INSTALL --BINSTUBS
       If  you	use  the   --binstubs	flag   in   bundle   install(1)   bun-
       dle-install.1.html,  Bundler  will  automatically  create  a  directory
       (which defaults to app_root/bin)  containing  all  of  the  executables
       available from gems in the bundle.

       After  using --binstubs, bin/rspec spec/my_spec.rb is identical to bun-
       dle exec rspec spec/my_spec.rb.

ENVIRONMENT MODIFICATIONS
       bundle exec makes a number of changes to the  shell  environment,  then
       executes the command you specify in full.

       o   make  sure  that  it's  still  possible to shell out to bundle from
	   inside a command invoked by bundle exec (using $BUNDLE_BIN_PATH)

       o   put	the  directory	containing  executables  (like	rails,	rspec,
	   rackup) for your bundle on $PATH

       o   make  sure  that if bundler is invoked in the subshell, it uses the
	   same Gemfile (by setting BUNDLE_GEMFILE)

       o   add -rbundler/setup to $RUBYOPT, which makes sure  that  Ruby  pro-
	   grams invoked in the subshell can see the gems in the bundle



       It also modifies Rubygems:

       o   disallow loading additional gems not in the bundle

       o   modify  the gem method to be a no-op if a gem matching the require-
	   ments is in the bundle, and to raise a Gem::LoadError if it's not

       o   Define Gem.refresh to be a no-op, since the source index is	always
	   frozen  when  using	bundler,  and  to prevent gems from the system
	   leaking into the environment

       o   Override Gem.bin_path to use the gems in the bundle, making	system
	   executables work

       o   Add all gems in the bundle into Gem.loaded_specs



   Loading
       By  default,  when attempting to bundle exec to a file with a ruby she-
       bang, Bundler will Kernel.load that file instead of using  Kernel.exec.
       For the vast majority of cases, this is a performance improvement. In a
       rare few cases, this could cause  some  subtle  side-effects  (such  as
       dependence  on  the exact contents of $0 or __FILE__) and the optimiza-
       tion can be disabled by enabling the disable_exec_load setting.

   Shelling out
       Any Ruby code that opens a subshell (like system, backticks,  or  %x{})
       will  automatically use the current Bundler environment. If you need to
       shell out to a Ruby command that is not part of	your  current  bundle,
       use  the  with_clean_env  method  with  a  block. Any subshells created
       inside the block will be given the environment present  before  Bundler
       was  activated. For example, Homebrew commands run Ruby, but don't work
       inside a bundle:



	   Bundler.with_clean_env do
	     `brew install wget`
	   end



       Using with_clean_env is also necessary if you are  shelling  out  to  a
       different  bundle.  Any Bundler commands run in a subshell will inherit
       the current Gemfile, so commands that need to run in the context  of  a
       different bundle also need to use with_clean_env.



	   Bundler.with_clean_env do
	     Dir.chdir "/other/bundler/project" do
	       `bundle exec ./script`
	     end
	   end



       Bundler	provides  convenience  helpers	that wrap system and exec, and
       they can be used like this:



	   Bundler.clean_system('brew install wget')
	   Bundler.clean_exec('brew install wget')



RUBYGEMS PLUGINS
       At present,  the  Rubygems  plugin  system  requires  all  files  named
       rubygems_plugin.rb  on the load path of any installed gem when any Ruby
       code requires rubygems.rb. This includes executables installed into the
       system, like rails, rackup, and rspec.

       Since  Rubygems	plugins can contain arbitrary Ruby code, they commonly
       end up activating themselves or their dependencies.

       For instance, the gemcutter 0.5 gem depended on json_pure. If  you  had
       that  version of gemcutter installed (even if you also had a newer ver-
       sion without this problem), Rubygems would activate gemcutter  0.5  and
       json_pure <latest>.

       If your Gemfile(5) also contained json_pure (or a gem with a dependency
       on json_pure), the latest version on your system  might	conflict  with
       the  version  in  your Gemfile(5), or the snapshot version in your Gem-
       file.lock.

       If this happens, bundler will say:



	   You have already activated json_pure 1.4.6 but your Gemfile
	   requires json_pure 1.4.3. Consider using bundle exec.



       In this situation, you almost certainly want to remove  the  underlying
       gem  with  the problematic gem plugin. In general, the authors of these
       plugins (in this case, the gemcutter gem) have released newer  versions
       that are more careful in their plugins.

       You can find a list of all the gems containing gem plugins by running



	   ruby -rubygems -e "puts Gem.find_files('rubygems_plugin.rb')"



       At the very least, you should remove all but the newest version of each
       gem plugin, and also remove all gem plugins that you aren't using  (gem
       uninstall gem_name).



				 December 2016			BUNDLE-EXEC(1)