Problem using "rake gems:*" with mongrel_cluster, ruby-oci8, and sqlite3-ruby

Rails
1

I’m having trouble using the environment.rb file to manage my gem
dependencies for certain gems. For example, I added “config.gem
mongrel_cluster” to my environment.rb file, and then installed it
through “rake gems install”, and it seemed to work fine:

  • sudo rake gems:install
    Password:
    (in /home/mdelaurentis/src/longview-web)
    gem install mongrel_cluster
    Bulk updating Gem source index for: http://gems.rubyforge.org/
    Successfully installed mongrel_cluster-1.0.5
    1 gem installed

But then when I use “rake gems” to list the gems, I get this “no such
file to load error”, and the list of gems shows mongrel_cluster as not
being installed:

[mdelaurentis-lin:~/src/longview-web]

  • sudo rake gems
    (in /home/mdelaurentis/src/longview-web)
    no such file to load – mongrel_cluster
    /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
    gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in require’

---- Snip ----

[I] rcov
[I] ar-extensions
[I] json
[I] daemons
[I] mongrel
[I] capistrano
[I] gem_plugin
[ ] mongrel_cluster

As you can see, some of the gems work just fine. I’ve only seen this
problem with mongrel_cluster, sqlite3, and ruby-oci8. I’m using Ruby
1.8.6 and Rails 2.1.1.

Has anyone else encountered this?

2

I figured it out. It’s because the configuration was trying to load
the mongrel_cluster, ruby-oci8, and sqlite3-ruby libraries through
‘require “”’. I needed to specify the name for the library
in the environment.rb file, like this:

config.gem “mongrel_cluster”, :lib => “mongrel_cluster/init”
config.gem “ruby-oci8”, :lib => “oci8”
config.gem “sqlite3-ruby”, :lib => “sqlite3”

All my other gems had a *.rb file with the same name as the gem, but
these three don’t, so the :lib option must be used.

3

Mike, thank you!!, you saved me some complicated workaround around
this:

config.gem “flickr-fu”
$ rake gems
These gems that this application depends on are missing:

  • flickr-fu
    Run “rake gems:install” to install them.

BUT:

config.gem “flickr-fu”, :lib => ‘flickr_fu’
$ rake gems
[F] flickr-fu

I don’t get why this isn’t stated in the environment.rb examples more
clearly.

Thanks again, hopefully someone searching this group for something
“config.gem problem load gem installed” will find it :slight_smile:

Karel