FEATURE: new release_note:generate rake task

lib/tasks/release_note.rake

@@ -0,0 +1,23 @@
+desc "generate a release note from the important commits"
+task "release_note:generate", :tag do |t, args|
+  tag = args[:tag] || `git describe --tags --abbrev=0`.strip
+
+  bug_fixes = []
+  new_features = []
+  ux_changes = []
+
+  `git log --pretty=format:%s #{tag}..HEAD`.each_line do |line|
+    if line =~ /^(FIX|BUG|BUGFIX):/i
+      bug_fixes << line
+    elsif line =~ /^FEATURE:/i
+      new_features << line
+    elsif line =~ /^UX:/i
+      ux_changes << line
+    end
+  end
+
+  puts "NEW FEATURES:", new_features, ""
+  puts "BUG FIXES:", bug_fixes, ""
+  puts "UX CHANGES:", ux_changes, ""
+
+end