Inconsistent indenting in the project? Brute-force it away!

reindent.rb

#!/usr/bin/env ruby

globs = [
  'src/**/*.js',
  'src/**/*.less',
  'test/**/*.js',
  'test/**/*.json',
  '*.js'
]
paths = globs.map{|glob| Dir[glob] }.reduce(:+)

# If there are any lines that start with _only_ two spaces,
# then the file uses two-space indentation.
is_twospaced = lambda do |text|
  text.lines.any? do |line|
    line.match(/^  [^ ]/)
  end
end

paths.map do |path|
  [path, File.read(path)]
end.reject do |(path, contents)|
  is_twospaced.call(contents)
end.map do |(path, contents)|
  [path, contents.gsub(/ {4}/, '  ')]
end.each do |(path, contents)|
  File.open(path, 'w') {|f| f.write(contents) }
end