The operations folks at my company would like to have Capistrano and
all its related gems contained in the svn trunk of the Rails app. So
in my local copy, I installed all the gems in vendor/gems using gem
install. (capistrano, echoe, highline, net-scp, net-sftp, net-ssh,
net-ssh-gateway, and rubyforge were installed.)
I copied the cap executable from /usr/pkg/ruby/bin/cap and modified it
to use vendor/gems as the gem path. Using that, I can run cap deploy
just fine from the command line. I can tell it's running the version
in vendor/gems. So far so good!
However, in my Rails app I also have a rake task that does some
parameter munging and then calls Capistrano in code via the
Capistrano::CLI library. When I run that, executing the equivalent of
a cap deploy, it fails to load the deploy recipes. This happens in the
first line of Capfile - it never even gets to my deploy.rb. The error
is:
defining a task named `symlink' would shadow an existing method with that name
I tracked it down to lib/capistrano/configuration/namespaces.rb. While
defining the tasks in the deploy recipe, Capistrano seems to think it
has a method called "symlink" that the symlink task will collide with.
I had a look at self.ancestors inside the call that's throwing the
error - and it's right. One of its ancestors is FileUtils, which has a
symlink method.
Rake seems to be adding this. When I run the same code via a
command-line cap deploy, self.ancestors does not include FileUtils.
Any ideas why (or how?) Rake is adding this stuff to the Capistrano
classes? I may just end up calling the command line from the Rakefile
instead of doing it in code, but that's a little ugly. (Well, not like
what I'm doing now isn't...) Here's how I do it in code:
def cap(*parameters)
require 'rubygems'
Gem.use_paths(Gem.dir, ["#{RAILS_ROOT}/vendor/gems"]) # Point to
frozen cap version
Gem.refresh # picks up path changes
gem 'capistrano', '=2.5.5'
require 'capistrano'
require 'capistrano/cli'
unless ENV['REVISION'] then
raise "Please set REVISION; exiting..."
end
ENV.delete 'REVISION' if ENV['REVISION'].upcase == "HEAD"
parameters << ['-S', "tag=#{ENV['TAG']}"] if ENV['TAG']
parameters << ['-S', "revision=#{ENV['REVISION']}"] if ENV['REVISION']
parameters << ['-S', "target=#{ENV['TARGET']}"] if ENV['TARGET']
parameters << '-q' if ENV['QUIET']
parameters.flatten!
puts "PARAMETERS:"
puts parameters.map{|p| p.to_s}
Capistrano::CLI.parse(parameters.map { |param| param.to_s }).execute!
end
--~--~---------~--~----~------------~-------~--~----~
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at http://groups.google.com/group/capistrano
-~----------~----~----~----~------~----~------~--~---
