module Hoe::Deveiate

def define_whitespace_checker_tasks
	desc "Check source code for inconsistent whitespace"
	task :check_whitespace => [
		:check_for_trailing_whitespace,
		:check_for_mixed_indentation,
	]
	desc "Check source code for trailing whitespace"
	task :check_for_trailing_whitespace do
		lines = find_matching_source_lines do |line, _|
			line =~ TRAILING_WHITESPACE_RE
		end
		unless lines.empty?
			desc = "Found some trailing whitespace"
			describe_lines_that_need_fixing( desc, lines, TRAILING_WHITESPACE_RE )
			fail
		end
	end
	desc "Check source code for mixed indentation"
	task :check_for_mixed_indentation do
		lines = find_matching_source_lines do |line, _|
			line =~ /(?<!#)([ ]\t)/
		end
		unless lines.empty?
			desc = "Found mixed indentation"
			describe_lines_that_need_fixing( desc, lines, /[ ]\t/ )
			fail
		end
	end
end