Module: Label

Defined in:
lib/label.rb,
lib/label/version.rb

Constant Summary collapse

VERSION = 
"0.1.2"

Class Method Summary collapse

Class Method Details

.describe(gem) ⇒ Object

Describe the given gem.

gem - A String describing the name of a gem.

Returns a String.



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# File 'lib/label.rb', line 68

def describe gem
  Gems.info(gem).fetch "info"
end

.label ⇒ Object 



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# File 'lib/label.rb', line 10

def label
  output = process "Gemfile"

  write "Gemfile", output
end

.process(gemfile) ⇒ Object

Process the given Gemfile.

gemfile - A String describing the path to a Gemfile.



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# File 'lib/label.rb', line 19

def process gemfile
  file = read gemfile

  lines = file.read.split "\n"

  processed_lines = []

  lines.each_with_index do |line, i|
    matches = line.match /^( *)gem ['"](.+?)['"]/

    if matches
      previous_line = lines[i - 1]

      whitespace = matches[1]
      gem        = matches[2]

      unless previous_line.start_with? "#"
        processed_lines << "#{whitespace}# #{describe gem}"
      end
    end

    processed_lines << line
  end

  processed_lines.join("\n") + "\n"
end

.read(file) ⇒ Object

Read the given file.

file - A String describing the path to a file.



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# File 'lib/label.rb', line 49

def read file
  File.open file
end

.write(file, text) ⇒ Object

Write to the given file.

file - A String describing the path to a file. text - A String describing text to be written.



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# File 'lib/label.rb', line 57

def write file, text
  File.open file, "w" do |file|
    file.write text
  end
end