Class: XRT::Transaction

Inherits:
Object
  • Object
show all
Defined in:
lib/xrt/transaction.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Transaction 



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# File 'lib/xrt/transaction.rb', line 4

def initialize
  @files = {}
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/xrt/transaction.rb', line 3

def files
  @files
end

Instance Method Details

#add(path, content) ⇒ Object 



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# File 'lib/xrt/transaction.rb', line 43

def add(path, content)
  @files[path.to_s] = content
end

#commit! ⇒ Object 



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# File 'lib/xrt/transaction.rb', line 35

def commit!
  files.each_pair{|path, content|
    full_path(path).open('w') {|f|
      f.write content
    }
  }
end

#edit(path, content) ⇒ Object 



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# File 'lib/xrt/transaction.rb', line 8

def edit(path, content)
  unless full_path(path).exist?
    raise 'Editing new file'
  end
  if full_path(path).read == content
    return
  end
  add(path, content)
end

#full_path(*fragments) ⇒ Object 



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# File 'lib/xrt/transaction.rb', line 31

def full_path(*fragments)
  Pathname(fragments.shift).join(*fragments)
end

#new_file(path, content) ⇒ Object 



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# File 'lib/xrt/transaction.rb', line 18

def new_file(path, content)
  if full_path(path).exist?
    if full_path(path).read == content
      # nothing will change
      return
    else
      raise "File #{path} already exists"
    end
  end

  add(path, content)
end