postmodern / chgems Goto Github PK

Thanks to an IRC chat with you, I am opening this ticket to remind you about this issue. I am using Chruby and have autoswitching enabled. I am using a .ruby-version folder in my project. Apparently this is preventing chgems from working properly.

To remind you, you said the following:
• auto.sh is resetting GEM_HOME/GEM_PATH
• So if you set the variables, then cd into the project directory the cd causes auto.sh to trigger and overrides those variables.

For now I removed the .ruby-version folder from my project and the autoswitch entry from my .bashrc file. I manually declare my version of Ruby when I go into the project and from this point, chgems will work as expected.

Like chruby_gemsets would be great

Passing an argument to chgems in Mac OS X results in the following error:

$ chgems .
readlink: illegal option -f
usage: readlink [-n] [file ...]
chgems: cannot use  as a gem dir: No such directory

This seems to happen because the -f switch on readlink in Mac OS X is missing. Is there maybe an alternative?

• chgems . ruby --version gives the correct version 1.9.3p286
• chgems . and ruby --version gives 1.8.7

When I invoke chgems the environment is not changed :(. .zshrc and console output on this gist: https://gist.github.com/janogonzalez/6043430

Software:

• Mac OS X 10.8.4
• zsh 4.3.11
• chruby 0.3.6
• chgems 0.3.2

Sometimes I don't want to keep reinstalling a gem that I will use on every project (e.g. Bundler, Pry) but I don't want to have a system-wide Ruby either. With rbenv, I did this by installing those gems into a gemset called "global".

Then, in each project, I had a .rbenv-gemsets that said global that-project -- this tells it to look for the gem in a gemset named "global" first, then in a gemset named "that-project".

Is it possible to get equivalent functionality in chgems -- where I get one .gem folder that's shared amongst everything, and then a project-specific .gem folder?

It's a useful GitHub feature. It'd also make clear this is not usable.

In Ubuntu, /bin/sh points to dash and this seems to be the cause of the ff. errors encountered:

/usr/local/bin/chgems: 10: /usr/local/bin/chgems: [[: not found
/usr/local/bin/chgems: 18: /usr/local/bin/chgems: [[: not found
/usr/local/bin/chgems: 38: /usr/local/bin/chgems: Bad substitution

After issuing the chgems command, this error shows up:

chgems:shift:9: shift count must be <= $#

README.md

The URL to the PGP signature does not resolve.

https://github.com/downloads/postmodern/chgem/chgems-0.3.0.tar.gz.asc

Thanks for chruby and chgems.

I could not get chgems to properly set my gem related environment variables (PATH, GEM_HOME, GEM_PATH). I am using Linux Mint 15, and it appears that my .bashrc file was being run when chgems opened a sub-shell. When that happened,

source /usr/local/share/chruby/chruby.sh

was executed (from .bashrc) and overwrote the environment variables.
I was able to fix this by changing line 42 from

    $SHELL

to

    $SHELL -norc

This prevents the .bashrc file from being executed in the sub-shell.
Now it works flawlessly. Perhaps you could add this to your documentation.

(In my home directory & chgems executable installed by cloning the git repo)

$ mkdir test
$ cd test
$ ruby -v   # => ruby 1.8.7
$ chruby 2.0
$ ruby -v   # => ruby 2.0.0-p247
$ chgems
# Entering /Users/<username>/Documents/github_clones/codetriage with gems in .gem/ruby/2.0.0/ ...
$ ruby -v # => ruby 1.8.7
$ gem env
# RubyGems Environment:
#  - RUBYGEMS VERSION: 1.3.6
#  - RUBY VERSION: 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin12.0]
#  - INSTALLATION DIRECTORY: /Users/<username>/test/.gem/ruby/2.0.0
#  - RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
#  - EXECUTABLE DIRECTORY: /Users/<username>/test/.gem/ruby/2.0.0/bin
#  - RUBYGEMS PLATFORMS:
#    - ruby
#    - universal-darwin-12
#  - GEM PATHS:
#     - /Users/<username>/test/.gem/ruby/2.0.0
#     - /Users/<username>/.gem/ruby/2.0.0
#     - /Users/<username>/.rubies/ruby-2.0.0-p247/lib/ruby/gems/2.0.0
#  - GEM CONFIGURATION:
#     - :update_sources => true
#     - :verbose => true
#     - :benchmark => false
#     - :backtrace => false
#     - :bulk_threshold => 1000
#     - "gem" => "--no-rdoc"
#  - REMOTE SOURCES:
#     - http://rubygems.org/

As an extension, if I set the default ruby in my shell profile, the gem_path doesn't get set at all. So, if I add the line chruby 2.0 to my zshrc, this is the behaviour:

$ mkdir test
$ cd test
$ ruby -v   # ruby 2.0.0-p247
$ chgems
# Entering /Users/<username>/Documents/github_clones/codetriage with gems in .gem/ruby/2.0.0/ ...
$ ruby -v   # ruby 2.0.0-p247
$ gem env
# RubyGems Environment:
#  - RUBYGEMS VERSION: 2.0.3
#  - RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.4.0]
#  - INSTALLATION DIRECTORY: /Users/<username>/.gem/ruby/2.0.0
#  - RUBY EXECUTABLE: /Users/<username>/.rubies/ruby-2.0.0-p247/bin/ruby
#  - EXECUTABLE DIRECTORY: /Users/<username>/.gem/ruby/2.0.0/bin
#  - RUBYGEMS PLATFORMS:
#    - ruby
#    - x86_64-darwin-12
#  - GEM PATHS:
#     - /Users/<username>/.gem/ruby/2.0.0
#     - /Users/<username>/.rubies/ruby-2.0.0-p247/lib/ruby/gems/2.0.0
#  - GEM CONFIGURATION:
#     - :update_sources => true
#     - :verbose => true
#     - :backtrace => false
#     - :bulk_threshold => 1000
#     - "gem" => "--no-rdoc"
#  - REMOTE SOURCES:
#     - https://rubygems.org/

I thought this was a problem with zsh, but I just tried it on a box with bash, and it's not working there either.

I'm using chruby with auto changing from .ruby-version

You'll see, i've added an echo $GEM_HOME after the exports:

$ echo $SHELL
/bin/bash
$ echo $GEM_HOME
/home/vagrant/.gem/ruby/2.0.0
$ echo $PWD
/vagrant/projects/fog
$ chgems .
/vagrant/projects/fog/.gem/ruby/2.0.0
Entering /vagrant/projects/fog with gems in .gem/ruby/2.0.0/ ...
$ echo $GEM_HOME
/home/vagrant/.gem/ruby/2.0.0
$ 

dev :: ~ » echo $SHELL
/bin/zsh
dev :: ~ » cd fog
dev :: ~/fog » echo $PWD
/home/ichilton/fog
dev :: ~/fog » echo $GEM_HOME
/home/ichilton/.gem/ruby/2.0.0
dev :: ~/fog » chruby  
   ruby-1.9.3-p545
 * ruby-2.0.0-p481
   ruby-2.1.2
dev :: ~/fog » chgems .
Entering /home/ichilton/fog with gems in .gem/ruby/2.0.0/ ...
dev :: ~/fog » echo $GEM_HOME
/home/ichilton/.gem/ruby/2.0.0
dev :: ~/fog » 

Any ideas?

Thanks,

Ian

... or at least provide an option (ENVVAR?) that makes chgems leave it alone.

I already use a PS1 that has my current directory in, so chgems adding it too just makes for noise.