--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rake/verifytask.rb	Wed May 07 18:22:04 2008 +0000
@@ -0,0 +1,64 @@
+#####################################################################
+###	S U B V E R S I O N   T A S K S   A N D   H E L P E R S
+#####################################################################
+
+require 'rake/tasklib'
+
+#
+# Work around the inexplicable behaviour of the original RDoc::VerifyTask, which 
+# errors if your coverage isn't *exactly* the threshold.
+# 
+
+# A task that can verify that the RCov coverage doesn't
+# drop below a certain threshold. It should be run after
+# running Spec::Rake::SpecTask.
+class VerifyTask < Rake::TaskLib
+	
+	COVERAGE_PERCENTAGE_PATTERN = 
+		%r{<tt class='coverage_code'>(\d+\.\d+)%</tt>}
+	
+	# Name of the task. Defaults to :verify_rcov
+	attr_accessor :name
+
+	# Path to the index.html file generated by RCov, which
+	# is the file containing the total coverage.
+	# Defaults to 'coverage/index.html'
+	attr_accessor :index_html
+
+	# Whether or not to output details. Defaults to true.
+	attr_accessor :verbose
+
+	# The threshold value (in percent) for coverage. If the 
+	# actual coverage is not equal to this value, the task will raise an 
+	# exception. 
+	attr_accessor :threshold
+
+	def initialize( name=:verify )
+		@name = name
+		@index_html = 'coverage/index.html'
+		@verbose = true
+		yield self if block_given?
+		raise "Threshold must be set" if @threshold.nil?
+		define
+	end
+
+	def define
+		desc "Verify that rcov coverage is at least #{threshold}%"
+
+		task @name do
+			total_coverage = nil
+			if match = File.read( index_html ).match( COVERAGE_PERCENTAGE_PATTERN )
+				total_coverage = Float( match[1] )
+			else
+				raise "Couldn't find the coverage percentage in #{index_html}"
+			end
+
+			puts "Coverage: #{total_coverage}% (threshold: #{threshold}%)" if verbose
+			if total_coverage < threshold
+				raise "Coverage must be at least #{threshold}% but was #{total_coverage}%"
+			end
+		end
+	end
+end
+
+# vim: set nosta noet ts=4 sw=4: