Module: Act::Helper

Defined in:
lib/act/helper.rb

Class Method Summary collapse

Class Method Details

.add_line_numbers(string, start_line, highlight_line = nil) ⇒ String

Returns:

  • (String) 


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# File 'lib/act/helper.rb', line 52

def self.add_line_numbers(string, start_line, highlight_line = nil)
  start_line ||= 1
  line_count = start_line
  numbered_lines = string.lines.map do |line|
    number = line_count.to_s.ljust(3)
    if highlight_line && highlight_line == line_count
      number = number.yellow
    end
    line_count += 1
    "#{number}  #{line}"
  end
  numbered_lines.join
end

.end_line(string, line, context_lines) ⇒ Fixnum

Returns:

  • (Fixnum) 


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# File 'lib/act/helper.rb', line 29

def self.end_line(string, line, context_lines)
  end_line = line + context_lines - 1
end

.lexer(file_name) ⇒ Object 



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# File 'lib/act/helper.rb', line 66

def self.lexer(file_name)
  case file_name
  when 'Gemfile', 'Rakefile', 'Podfile'
    'rb'
  when 'Podfile.lock', 'Gemfile.lock'
    'yaml'
  else
    if file_name
      `pygmentize -N #{file_name}`.chomp
    else
      'text'
    end
  end
end

.open_in_editor_command(path, line) ⇒ String

Returns:

  • (String) 


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# File 'lib/act/helper.rb', line 9

def self.open_in_editor_command(path, line)
  editor = ENV['EDITOR']
  result = "#{editor} #{path}"
  if line
    case editor
    when 'vim', 'mvim'
      result = "#{editor} #{path} +#{line}"
    end
  end
  result
end

.prettify(string, lexer) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/act/helper.rb', line 81

def self.prettify(string, lexer)
  raise ArgumentError unless string
  raise ArgumentError unless lexer
  case lexer
  when 'json'
    require 'json'
    JSON.pretty_generate(JSON.parse(string))
  else
    string
  end
end

.select_lines(string, start_line, end_line) ⇒ String, Nil

Returns:

  • (String, Nil) 


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# File 'lib/act/helper.rb', line 35

def self.select_lines(string, start_line, end_line)
  start_line = start_line - 1
  end_line = end_line - 1
  start_line = 0 if start_line < 0
  end_line = 0 if end_line < 0
  components = string.lines[start_line..end_line]
  components.join if components && !components.empty?
end

.start_line(string, line, context_lines) ⇒ Fixnum

Returns:

  • (Fixnum) 


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# File 'lib/act/helper.rb', line 23

def self.start_line(string, line, context_lines)
  start_line = line - context_lines - 1
end

.strip_indentation(string) ⇒ String

Returns:

  • (String) 


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# File 'lib/act/helper.rb', line 46

def self.strip_indentation(string)
  string.strip_heredoc
end

.syntax_highlith(string, lexer) ⇒ String

Returns:

  • (String)

Raises:

  • (ArgumentError) 


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# File 'lib/act/helper.rb', line 95

def self.syntax_highlith(string, lexer)
  raise ArgumentError unless string
  raise ArgumentError unless lexer
  return string if `which pygmentize`.strip.empty?
  result = nil
  Open3.popen3("pygmentize -l #{lexer}") do |stdin, stdout, stderr|
    stdin.write(string)
    stdin.close_write
    result = stdout.read
  end
  result
end