98 lines
2.5 KiB
Ruby
98 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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class CodeStatisticsCalculator #:nodoc:
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attr_reader :lines, :code_lines, :classes, :methods
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PATTERNS = {
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rb: {
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line_comment: /^\s*#/,
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begin_block_comment: /^=begin/,
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end_block_comment: /^=end/,
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class: /^\s*class\s+[_A-Z]/,
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method: /^\s*def\s+[_a-z]/,
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},
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erb: {
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line_comment: %r{((^\s*<%#.*%>)|(<!--.*-->))},
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},
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css: {
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line_comment: %r{^\s*/\*.*\*/},
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},
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scss: {
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line_comment: %r{((^\s*/\*.*\*/)|(^\s*//))},
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},
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js: {
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line_comment: %r{^\s*//},
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begin_block_comment: %r{^\s*/\*},
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end_block_comment: %r{\*/},
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method: /function(\s+[_a-zA-Z][\da-zA-Z]*)?\s*\(/,
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},
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coffee: {
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line_comment: /^\s*#/,
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begin_block_comment: /^\s*###/,
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end_block_comment: /^\s*###/,
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class: /^\s*class\s+[_A-Z]/,
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method: /[-=]>/,
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}
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}
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PATTERNS[:minitest] = PATTERNS[:rb].merge method: /^\s*(def|test)\s+['"_a-z]/
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PATTERNS[:rake] = PATTERNS[:rb]
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def initialize(lines = 0, code_lines = 0, classes = 0, methods = 0)
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@lines = lines
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@code_lines = code_lines
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@classes = classes
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@methods = methods
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end
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def add(code_statistics_calculator)
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@lines += code_statistics_calculator.lines
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@code_lines += code_statistics_calculator.code_lines
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@classes += code_statistics_calculator.classes
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@methods += code_statistics_calculator.methods
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end
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def add_by_file_path(file_path)
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File.open(file_path) do |f|
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add_by_io(f, file_type(file_path))
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end
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end
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def add_by_io(io, file_type)
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patterns = PATTERNS[file_type] || {}
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comment_started = false
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while line = io.gets
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@lines += 1
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if comment_started
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if patterns[:end_block_comment] && patterns[:end_block_comment].match?(line)
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comment_started = false
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end
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next
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else
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if patterns[:begin_block_comment] && patterns[:begin_block_comment].match?(line)
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comment_started = true
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next
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end
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end
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@classes += 1 if patterns[:class] && patterns[:class].match?(line)
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@methods += 1 if patterns[:method] && patterns[:method].match?(line)
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if !line.match?(/^\s*$/) && (patterns[:line_comment].nil? || !line.match?(patterns[:line_comment]))
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@code_lines += 1
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end
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end
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end
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private
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def file_type(file_path)
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if file_path.end_with? "_test.rb"
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:minitest
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else
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File.extname(file_path).delete_prefix(".").downcase.to_sym
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end
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end
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end
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