Bug #9004: gem which command should exit with status of '1' if 1 or more gem arguments are not found

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 1.9.3p448 (2013-06-27 revision 41675) [x86_64-darwin12.4.0]
• Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN

[evilensky (Eugene Vilensky)]

=begin
Many unix utilities exit with a code of 1 if any parts of the command fail, in particular ((%rpm%)). I believe its desirable for ((%gem which%)) to behave similar to ((%rpm -q%)) for this use case.

rpm -q man

man-1.6f-32.el6.x86_64

echo $?

0

rpm -q man cheese

man-1.6f-32.el6.x86_64
package cheese is not installed

echo $?

1

$ gem which capistrano
/opt/boxen/rbenv/versions/1.9.3-p448/lib/ruby/gems/1.9.1/gems/capistrano-2.15.5/lib/capistrano.rb
evilensky@Vilensky~/src/puppet/lib/puppet (add-yum-uninstall-to-yum-provider)$ echo $?
0

$ gem which capistrano rails
/opt/boxen/rbenv/versions/1.9.3-p448/lib/ruby/gems/1.9.1/gems/capistrano-2.15.5/lib/capistrano.rb
ERROR: Can't find ruby library file or shared library rails
$ echo $?
0
=end

[evilensky (Eugene Vilensky)]

Apologies for breaking the formatting of Description.

rpm case

rpm -q man

man-1.6f-32.el6.x86_64

echo $?

0

rpm -q man cheese

man-1.6f-32.el6.x86_64
package cheese is not installed

echo $?

1
gem which case

$ gem which capistrano
/opt/boxen/rbenv/versions/1.9.3-p448/lib/ruby/gems/1.9.1/gems/capistrano-2.15.5/lib/capistrano.rb
evilensky@Vilensky~/src/puppet/lib/puppet (add-yum-uninstall-to-yum-provider)$ echo $?
0
$ gem which capistrano rails
/opt/boxen/rbenv/versions/1.9.3-p448/lib/ruby/gems/1.9.1/gems/capistrano-2.15.5/lib/capistrano.rb
ERROR: Can't find ruby library file or shared library rails
$ echo $?
0

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)

[phluid61 (Matthew Kerwin)]

• File gem_which.patch gem_which.patch added

=begin
Patch causes gem which to return 1 if there are no args, or if any of the args is not found.

$ gem which ; echo $?
1
$ gem which rake ; echo $?
/usr/local/lib/ruby/2.1.0/rake.rb
0
$ gem which rake rails ; echo $?
/usr/local/lib/ruby/2.1.0/rake.rb
ERROR: Can't find ruby library file or shared library rails
1

=end

[drbrain (Eric Hodel)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r43714.
Eugene, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

• lib/rubygems: Update to RubyGems master 6a3d9f9. Changes include:

  Compatibly renamed Gem::DependencyResolver to Gem::Resolver.

  Added support for git gems in gem.deps.rb and Gemfile.

  Fixed resolver bugs.

• test/rubygems: ditto.

• lib/rubygems/LICENSE.txt: Updated to license from RubyGems trunk.
  [ruby-trunk - Bug #9086]

• lib/rubygems/commands/which_command.rb: RubyGems now indicates
  failure when any file is missing. [ruby-trunk - Bug #9004]

• lib/rubygems/ext/builder: Extensions are now installed into the
  extension install directory and the first directory in the require
  path from the gem. This allows backwards compatibility with msgpack
  and other gems that calculate full require paths.
  [ruby-trunk - Bug #9106]