Spiked support for checking dependencies.

Rakefile

@@ -96,31 +96,6 @@ else
   task :default => :test
 end
 
-namespace :development_dependencies do
-  task :check do
-    missing_dependencies = Rake.application.jeweler.gemspec.development_dependencies.select do |dependency|
-      begin
-        Gem.activate dependency.name, dependency.version_requirements.to_s
-        false
-      rescue LoadError => e
-        true
-      end
-    end
-
-    #require 'ruby-debug'; breakpoint
-
-    if missing_dependencies.empty?
-      puts "Development dependencies seem to be installed."
-    else
-      puts "Missing some dependencies. Install them with the following commands:"
-      missing_dependencies.each do |dependency|
-        puts %Q{\tgem install #{dependency.name} --version "#{dependency.version_requirements}"}
-      end
-      abort "Run the specified gem commands before trying to run this again: #{$0} #{ARGV.join(' ')}"
-    end
-
-  end
-end
 
-task :test => 'development_dependencies:check'
-task :features => 'development_dependencies:check'
+task :test => :check_dependencies
+task :features => :check_dependencies

lib/jeweler.rb

@@ -129,6 +129,12 @@ def setup_rubyforge
     Jeweler::Commands::SetupRubyforge.build_for(self).run
   end
 
+  def check_dependencies(type = nil)
+    command = Jeweler::Commands::CheckDependencies.build_for(self)
+    command.type = type
+
+    command.run
+  end
 
   def in_git_repo?
     File.exists?(File.join(self.base_dir, '.git'))

lib/jeweler/commands.rb

@@ -1,5 +1,6 @@
 require 'jeweler/commands/build_gem'
 require 'jeweler/commands/install_gem'
+require 'jeweler/commands/check_dependencies'
 require 'jeweler/commands/release'
 require 'jeweler/commands/release_to_rubyforge'
 require 'jeweler/commands/setup_rubyforge'

lib/jeweler/commands/check_dependencies.rb

@@ -0,0 +1,52 @@
+class Jeweler
+  module Commands
+    class CheckDependencies
+      class MissingDependenciesError < RuntimeError
+        attr_accessor :dependencies, :type
+      end
+
+      attr_accessor :gemspec, :type
+
+      def run
+        missing_dependencies = dependencies.select do |dependency|
+          begin
+            Gem.activate dependency.name, dependency.version_requirements.to_s
+            false
+          rescue LoadError => e
+            true
+          end
+        end
+
+        if missing_dependencies.empty?
+          puts "#{type || 'All'} dependencies seem to be installed."
+        else
+          puts "Missing some dependencies. Install them with the following commands:"
+          missing_dependencies.each do |dependency|
+            puts %Q{\tgem install #{dependency.name} --version "#{dependency.version_requirements}"}
+          end
+
+          abort "Run the specified gem commands before trying to run this again: #{$0} #{ARGV.join(' ')}"
+        end
+
+      end
+
+      def dependencies
+        case type
+        when :runtime, :development
+          gemspec.send("#{type}_dependencies")
+        else
+          gemspec.dependencies
+        end
+
+      end
+
+      def self.build_for(jeweler)
+        command = new
+
+        command.gemspec = jeweler.gemspec
+
+        command
+      end
+    end
+  end
+end

lib/jeweler/tasks.rb

@@ -111,6 +111,24 @@ def define
       task :release do
         jeweler.release
       end
+
+      desc "Check that runtime and development dependencies are installed" 
+      task :check_dependencies do
+        jeweler.check_dependencies
+      end
+
+      namespace :check_dependencies do
+        desc "Check that runtime dependencies are installed"
+        task :runtime  do
+          jeweler.check_dependencies(:runtime)
+        end
+
+        desc"Check that development dependencies are installed"
+        task :development do
+          jeweler.check_dependencies(:development)
+        end
+
+      end
 
     end
   end

lib/jeweler/templates/Rakefile

@@ -75,10 +75,14 @@ rescue LoadError
 end
 <% end %>
 
+task :<%= test_task %> => :check_dependencies
+
 <% if should_use_cucumber %>
 begin
   require 'cucumber/rake/task'
   Cucumber::Rake::Task.new(:features)
+
+  task :features => :check_dependencies
 rescue LoadError
   task :features do
     abort "Cucumber is not available. In order to run features, you must: sudo gem install cucumber"