Adding tasks for creating and deleting git tags.

lib/bones/helpers.rb

@@ -9,10 +9,8 @@ module Bones::Helpers
   GEM  = "#{RUBY} -S gem"
   HAVE_SVN = (Dir.entries(Dir.pwd).include?('.svn') and
               system("svn --version 2>&1 > #{DEV_NULL}"))
-  HAVE_GIT = (Dir.entries(Dir.pwd).include?('.git') and
-              system("git --version 2>&1 > #{DEV_NULL}"))
 
-  HAVE = Hash.new
+  HAVE = Hash.new(false)
 
   def have?( key, &block )
     return HAVE[key] if block.nil?

lib/bones/plugins/ann.rb

@@ -1,7 +1,4 @@
 
-require 'net/smtp'
-require 'time'
-
 module Bones::Plugins::Ann
   include ::Bones::Helpers
   extend self

lib/bones/plugins/git.rb

@@ -0,0 +1,78 @@
+
+module Bones::Plugins::Git
+  include ::Bones::Helpers
+  extend self
+
+  def post_load
+    have?(:git) {
+      Dir.entries(Dir.pwd).include?('.git') and
+      system("git --version 2>&1 > #{DEV_NULL}")
+    }
+  end
+
+  def define_tasks
+    return unless have? :git
+
+    config = ::Bones.config
+    namespace :git do
+
+      # A prerequisites task that all other tasks depend upon
+      task :prereqs
+
+      desc 'Show tags from the git repository'
+      task :tags => 'git:prereqs' do |t|
+        puts Git.open('.').tags.map {|t| t.name}.reverse
+      end
+
+      desc 'Create a new tag in the git repository'
+      task :create_tag => 'git:prereqs' do |t|
+        v = ENV['VERSION'] or abort 'Must supply VERSION=x.y.z'
+        abort "Versions don't match #{v} vs #{config.version}" if v != config.version
+
+        git = Git.open '.'
+        tag = "%s-%s" % [config.name, config.version]
+        puts "Creating git tag '#{tag}'."
+
+        begin
+          git.add_tag tag
+        rescue Git::GitExecuteError
+          abort "Tag creation failed: tag '#{tag}' already exists."
+        end
+
+        if git.remotes.map {|r| r.name}.include? 'origin'
+          unless system "git push origin #{tag}"
+            abort "Could not push tag to remote git repository."
+          end
+        end
+      end  # task
+
+      desc 'Delete a tag from the git repository'
+      task :delete_tag => 'git:prereqs' do |t|
+        v = ENV['VERSION'] or abort 'Must supply VERSION=x.y.z'
+
+        git = Git.open '.'
+        tag = "%s-%s" % [config.name, v]
+
+        unless git.tags.map {|t| t.name}.include? tag
+          puts "Tag '#{tag}' does not exist."
+          break
+        end
+
+        puts "Deleting git tag '#{tag}'."
+        abort 'Tag deletion failed.' unless system "git tag -d '#{tag}'"
+
+        if git.remotes.map {|r| r.name}.include? 'origin'
+          unless system "git push origin ':refs/tags/#{tag}'"
+            abort "Could not delete tag from remote git repository."
+          end
+        end
+      end  # task
+
+    end  # namespace :git
+
+    task 'gem:release' => 'git:create_tag'
+  end
+
+end  # module Bones::Plugins::Git
+
+# EOF

lib/bones/plugins/test.rb

@@ -27,9 +27,15 @@ def initialize_test
     }
   end
 
+  def post_load
+    have?(:test) {
+      Kernel.test(?e, config.test.file) or not config.test.files.to_a.empty?
+    }
+  end
+
   def define_tasks
     config = ::Bones.config
-    return unless Kernel.test(?e, config.test.file) or not config.test.files.to_a.empty?
+    return unless have? :test
 
     namespace :test do
 

lib/bones/smtp_tls.rb

@@ -9,6 +9,7 @@
 begin
   require "openssl"
   require "net/smtp"
+  require 'time'
 
   Net::SMTP.class_eval do
     private