Module: Cached

Defined in:
lib/cached.rb

Class Method Summary collapse

Class Method Details

.exec(*args) ⇒ Object 



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# File 'lib/cached.rb', line 39

def self.exec(*args)
  ttl = 3600
  
  case args.first
  when /^--ttl=([0-9]+)$/
    args.shift
    ttl = $1.to_i
  end
  
  key = Digest::SHA1.hexdigest(Dir.getwd + ":" + args.inspect)
  Entry.get(key) || begin
    value = run(*args)
    Entry.set(key, value, :ttl => ttl)
    value
  end
end

.run(*args) ⇒ Object 



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# File 'lib/cached.rb', line 76

def self.run(*args)
  command = args.join(" ")
  # command = shell_escape args
  `#{command}`
end

.shell_escape(*args) ⇒ Object 



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# File 'lib/cached.rb', line 56

def self.shell_escape(*args)
  args.map do |str|
    if str.empty?
      "''"
    elsif %r{\A[0-9A-Za-z+,./:=@_-]+\z} =~ str
      str
    else
      result = ''
      str.scan(/('+)|[^']+/) {
        if $1
          result << %q{\'} * $1.length
        else
          result << "'#{$&}'"
        end
      }
      result
    end
  end.join(" ")
end