gem.rb in new-0.0.7

- old
+ new

@@ -1,13 +1,15 @@
+require 'bundler'
 require 'rake'
 require 'yaml'
 
 class New::Task::Gem < New::Task
   include New::Interpolate
   include New::Version
 
   GLOB_ATTRIBUTES = [:files, :test_files, :extra_rdoc_files]
+  GEMFILE = File.expand_path(File.join(Dir.pwd, 'Gemfile'))
   OPTIONS = {
     gemspec: {
       summary: "A short summary of this gem's description. Displayed in `gem list -d`",
       files: ['**/*','**/.*']
     }
@@ -25,20 +27,19 @@
   end
 
 private
 
   def set_version
-    # set version
-    self.version = project_options[:version]
-
     # bump version
-    bump_version get_part
+    version = bump_version(project_options[:version], get_part).to_s
 
     # set new version to config
-    project_options[:version] = version.to_s
+    project_options[:version] = version
   end
 
+  # Check that any glob pattern attributes match existing files
+  #
   def validate_files
     GLOB_ATTRIBUTES.each do |file_attr|
       next if @gemspec[file_attr].nil?
 
       files = []
@@ -58,11 +59,11 @@
       @gemspec[file_attr] = files.flatten
     end
   end
 
   def render_gemspec_options
-    string = []
+    array = []
 
     # set defaults
     @gemspec[:date]    = Date.today.to_s
     @gemspec[:name]    = project_options[:project_name]
     @gemspec[:version] = project_options[:version]
@@ -84,13 +85,48 @@
       val = case v
       when String then "'#{v}'"
       else v
       end
 
-      string << "  s.#{k} = #{val}"
+      array << "  s.#{k} = #{val}"
     end
 
-    project_options[:gemspec_string] = string.join("\n")
+    array += extract_gem_dependencies
+
+    project_options[:gemspec_string] = array.join("\n")
+  end
+
+  # Extract dependencies based on the Gemfile to be used in the gemspec
+  #
+  def extract_gem_dependencies
+    b = Bundler::Dsl.new
+    b.eval_gemfile(GEMFILE)
+
+    array = []
+    runtime = []
+    development = []
+
+    # loop through the required gems and find default and development gems
+    b.dependencies.each do |g|
+      groups = g.groups
+      data = {
+        name: g.name,
+        requirements: g.requirements_list.map{ |r| "'#{r}'" }.join(',')
+      }
+
+      runtime <<  data if groups.include? :default
+      development <<  data if groups.include? :development
+    end
+
+    # create .gemspec friendly string of requirements
+    runtime.each do |r|
+      array << "  s.add_runtime_dependency '#{r[:name]}', #{r[:requirements]}"
+    end
+    development.each do |r|
+      array << "  s.add_development_dependency '#{r[:name]}', #{r[:requirements]}"
+    end
+
+    return array
   end
 
   def write_gemspec
     # process gemspec
     interpolate File.join(File.dirname(__FILE__), '.gemspec.erb'), project_options