class Covered::PartialSummary

Generates a report containing only lines near missing coverage.

def call(wrapper, output = $stdout, **options)

@parameter options [Hash] Options forwarded to {print_coverage}.
@parameter output [IO] The output stream.
@parameter wrapper [Covered::Base] The coverage wrapper to report.
Print the partial coverage report. 
def call(wrapper, output = $stdout, **options)
	terminal = self.terminal(output)
	complete_files = []
	partial_files_count = 0
	
	statistics = self.each(wrapper) do |coverage|
		partial_files_count += 1
		
		path = wrapper.relative_path(coverage.path)
		terminal.puts ""
		terminal.puts path, style: :path
		
		begin
			print_coverage(terminal, coverage, **options)
		rescue => error
			print_error(terminal, error)
		end
		
		coverage.print(output)
	end
	
	# Collect files with 100% coverage that were not shown:
	wrapper.each do |coverage|
		if coverage.ratio >= 1.0
			complete_files << wrapper.relative_path(coverage.path)
		end
	end
	
	terminal.puts
	statistics.print(output)
	
	# Only show information about files with 100% coverage if there were files with partial coverage shown above:
	if complete_files.any? && partial_files_count > 0
		terminal.puts ""
		if complete_files.size == 1
			terminal.puts "1 file has 100% coverage and is not shown above:"
		else
			terminal.puts "#{complete_files.size} files have 100% coverage and are not shown above:"
		end
		
		complete_files.sort.each do |path|
			terminal.write "  - ", style: :covered_prefix
			terminal.puts path, style: :brief_path
		end
	end
end

def print_coverage(terminal, coverage, before: 4, after: 4)

@parameter after [Integer] The number of lines after an uncovered line to show.
@parameter before [Integer] The number of lines before an uncovered line to show.
@parameter coverage [Covered::Coverage] The coverage to render.
@parameter terminal [Console::Terminal] The terminal to write to.
Print coverage snippets around uncovered lines. 
def print_coverage(terminal, coverage, before: 4, after: 4)
	return if coverage.zero?
	
	line_offset = 1
	counts = coverage.counts
	last_line = nil
	
	coverage.read do |file|
		print_line_header(terminal)
		
		file.each_line do |line|
			range = Range.new([line_offset - before, 0].max, line_offset+after)
			
			if counts[range]&.include?(0)
				count = counts[line_offset]
				
				if last_line and last_line != line_offset-1
					terminal.puts ":".rjust(16)
				end
				
				print_annotations(terminal, coverage, line, line_offset)
				print_line(terminal, line, line_offset, count)
				
				last_line = line_offset
			end
			
			line_offset += 1
		end
	end
end