module SnippetsHelper def lifetime_select_options options = [ ['forever', nil], ['1 day', "#{Date.current + 1.day}"], ['1 week', "#{Date.current + 1.week}"], ['1 month', "#{Date.current + 1.month}"] ] options_for_select(options) end def reliable_snippet_path(snippet) if snippet.project_id? namespace_project_snippet_path(snippet.project.namespace, snippet.project, snippet) else snippet_path(snippet) end end # Get an array of line numbers surrounding a matching # line, bounded by min/max. # # @returns Array of line numbers def bounded_line_numbers(line, min, max, surrounding_lines) lower = line - surrounding_lines > min ? line - surrounding_lines : min upper = line + surrounding_lines < max ? line + surrounding_lines : max (lower..upper).to_a end # Returns a sorted set of lines to be included in a snippet preview. # This ensures matching adjacent lines do not display duplicated # surrounding code. # # @returns Array, unique and sorted. def matching_lines(lined_content, surrounding_lines, query) used_lines = [] lined_content.each_with_index do |line, line_number| used_lines.concat bounded_line_numbers( line_number, 0, lined_content.size, surrounding_lines ) if line.include?(query) end used_lines.uniq.sort end # 'Chunkify' entire snippet. Splits the snippet data into matching lines + # surrounding_lines() worth of unmatching lines. # # @returns a hash with {snippet_object, snippet_chunks:{data,start_line}} def chunk_snippet(snippet, query, surrounding_lines = 3) lined_content = snippet.content.split("\n") used_lines = matching_lines(lined_content, surrounding_lines, query) snippet_chunk = [] snippet_chunks = [] snippet_start_line = 0 last_line = -1 # Go through each used line, and add consecutive lines as a single chunk # to the snippet chunk array. used_lines.each do |line_number| if last_line < 0 # Start a new chunk. snippet_start_line = line_number snippet_chunk << lined_content[line_number] elsif last_line == line_number - 1 # Consecutive line, continue chunk. snippet_chunk << lined_content[line_number] else # Non-consecutive line, add chunk to chunk array. snippet_chunks << { data: snippet_chunk.join("\n"), start_line: snippet_start_line + 1 } # Start a new chunk. snippet_chunk = [lined_content[line_number]] snippet_start_line = line_number end last_line = line_number end # Add final chunk to chunk array snippet_chunks << { data: snippet_chunk.join("\n"), start_line: snippet_start_line + 1 } # Return snippet with chunk array { snippet_object: snippet, snippet_chunks: snippet_chunks } end end