Bundler - how to re-install all gems after os update?

Rails
1

I had a working Rails setup using RVM on Ubuntu 11.10 with /home on a
separate partition. I installed Ubuntu 12.04 (Alpha) on the root
partition, leaving the home partition unchanged. I now find that some
things don’t work, I think due to the fact that the system has been
updated and versions of libraries have changed. For example I get:

$ rails c
/home/colinl/.rvm/gems/ruby-1.8.7-p302/gems/mysql2-0.3.10/lib/mysql2/mysql2.so:
libmysqlclient_r.so.16: cannot open shared object file: No such file
or directory -
/home/colinl/.rvm/gems/ruby-1.8.7-p302/gems/mysql2-0.3.10/lib/mysql2/mysql2.so
(LoadError)

I uninstalled gem mysql2 then did bundle install, which re-installed
mysql2 (the same version) with its native extensions and this fixed
the problem. I think (but may be corrected) that I need to re-install
any gems that have native extensions in each of my projects. As I
don’t know which have native extensions what I would like to do is
just to remove them all and then run bundle install to reinstall them.
I can’t find a method of uninstalling them however. Any suggestions?

Colin

2

On Mon, Feb 6, 2012 at 10:18 PM, Colin L. [email protected]
wrote:

or directory -

Hi Colin,

If I understand your request correctly, you are asking for
rvm gemset empty <gemset name> ? Or did I misunderstand?

Below I show a log of bundle install, rvm gemset empty and bundle install

HTH,

Peter

=====================

peterv@ASUS:~/b/github/petervandenabeele$ cd shoes/

peterv@ASUS:~/b/github/petervandenabeele/shoes$ rvm current
ruby-1.9.3-p0@shoes

peterv@ASUS:~/b/github/petervandenabeele/shoes$ gem list

*** LOCAL GEMS ***

bundler (1.0.21)
rake (0.9.2.2)

peterv@ASUS:~/b/github/petervandenabeele/shoes$ bundle install
Fetching source index for http://rubygems.org/
Installing rake (0.9.2)
Installing builder (3.0.0)
Installing diff-lcs (1.1.3)
Installing json (1.6.1) with native extensions
Installing gherkin (2.5.1) with native extensions
Installing term-ansicolor (1.0.6)
Installing cucumber (1.1.0)
Installing net-http-digest_auth (1.1.1)
Installing net-http-persistent (1.9)
Installing nokogiri (1.5.0) with native extensions
Installing webrobots (0.0.11)
Installing mechanize (2.0.1)
Installing rspec-core (2.6.4)
Installing rspec-expectations (2.6.0)
Installing rspec-mocks (2.6.0)
Installing rspec (2.6.0)
Installing shoes-mocks (0.0.2)
Installing shoes-cucumber (0.0.2)
Using bundler (1.0.21)
Your bundle is complete! Use bundle show [gemname] to see where a
bundled
gem is installed.

peterv@ASUS:~/b/github/petervandenabeele/shoes$ rvm current
ruby-1.9.3-p0@shoes

peterv@ASUS:~/b/github/petervandenabeele/shoes$ bundle show rspec
/home/peterv/.rvm/gems/ruby-1.9.3-p0@shoes/gems/rspec-2.6.0

peterv@ASUS:~/b/github/petervandenabeele/shoes$ rvm gemset empty shoes
Are you SURE you wish to remove the installed gems for gemset
‘ruby-1.9.3-p0@shoes’ (/home/peterv/.rvm/gems/ruby-1.9.3-p0@shoes)?
(anything other than ‘yes’ will cancel) > yes

peterv@ASUS:~/b/github/petervandenabeele/shoes$ rvm current
ruby-1.9.3-p0@shoes

peterv@ASUS:~/b/github/petervandenabeele/shoes$ gem list

*** LOCAL GEMS ***

bundler (1.0.21)
rake (0.9.2.2)

peterv@ASUS:~/b/github/petervandenabeele/shoes$ bundle install
Fetching source index for http://rubygems.org/
Installing rake (0.9.2)
Installing builder (3.0.0)
Installing diff-lcs (1.1.3)
Installing json (1.6.1) with native extensions
Installing gherkin (2.5.1) with native extensions
Installing term-ansicolor (1.0.6)
Installing cucumber (1.1.0)
Installing net-http-digest_auth (1.1.1)
Installing net-http-persistent (1.9)
Installing nokogiri (1.5.0) with native extensions
Installing webrobots (0.0.11)
Installing mechanize (2.0.1)
Installing rspec-core (2.6.4)
Installing rspec-expectations (2.6.0)
Installing rspec-mocks (2.6.0)
Installing rspec (2.6.0)
Installing shoes-mocks (0.0.2)
Installing shoes-cucumber (0.0.2)
Using bundler (1.0.21)
Your bundle is complete! Use bundle show [gemname] to see where a
bundled
gem is installed.

3

On 6 February 2012 21:31, Peter V. [email protected]
wrote:

/home/colinl/.rvm/gems/ruby-1.8.7-p302/gems/mysql2-0.3.10/lib/mysql2/mysql2.so:
just to remove them all and then run bundle install to reinstall them.
I can’t find a method of uninstalling them however. Any suggestions?

Hi Colin,

If I understand your request correctly, you are asking for
rvm gemset empty <gemset name> ? Or did I misunderstand?

That’s the one, thanks. I was looking for it as part of bundle but
you are right, emptying the gemset is what I want to do.

Below I show a log of bundle install, rvm gemset empty and bundle install

After the empty I had to “gem install bundler” before “bundle install”
as it took that out too. Otherwise exactly as you show. Many thanks

Colin

4

On Mon, Feb 6, 2012 at 10:45 PM, Colin L. [email protected]
wrote:

Below I show a log of bundle install, rvm gemset empty and bundle install

After the empty I had to “gem install bundler” before “bundle install”
as it took that out too. Otherwise exactly as you show.

That’s because I installed the “bundler” gem in my “global” gemset
(IIRC).
So, when I create a new gemset, the new gemset automatically has
2 gems it reuses from that global gemset. It’s a neat trick :slight_smile:

peterv@ASUS:~$ rvm gemset use global
Using /home/peterv/.rvm/gems/ruby-1.9.3-p0 with gemset global

peterv@ASUS:~$ gem list

*** LOCAL GEMS ***

bundler (1.0.21)
rake (0.9.2.2)

peterv@ASUS:~$ rvm gemset create new_gemset
‘new_gemset’ gemset created
(/home/peterv/.rvm/gems/ruby-1.9.3-p0@new_gemset
).

peterv@ASUS:~$ rvm gemset use new_gemset
Using /home/peterv/.rvm/gems/ruby-1.9.3-p0 with gemset new_gemset

peterv@ASUS:~$ gem list

*** LOCAL GEMS ***

bundler (1.0.21)
rake (0.9.2.2)

Many thanks

You’re very welcome,

Peter