Class: TDP::Patch

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

Overview

A single patch.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(full_filename) ⇒ Patch

full_filename

full path to .sql file



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# File 'lib/tdp.rb', line 114

def initialize(full_filename)
  @full_filename = full_filename
  _, @name = File.split(full_filename)
  @content = File.read(full_filename)
  @signature = Digest::SHA256.hexdigest(@content)
end

Instance Attribute Details

#content ⇒ Object (readonly)

Content of the patch.



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# File 'lib/tdp.rb', line 100

def content
  @content
end

#full_filename ⇒ Object (readonly)

Full name of the patch file.



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# File 'lib/tdp.rb', line 103

def full_filename
  @full_filename
end

#name ⇒ Object (readonly)

Name of the patch.



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# File 'lib/tdp.rb', line 109

def name
  @name
end

#signature ⇒ Object (readonly)

SHA-256 hash of content.



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# File 'lib/tdp.rb', line 106

def signature
  @signature
end

Instance Method Details

#<=>(other) ⇒ Object

Comparison function. Any permanent patch takes precedence over any volatile one, if both patches are permanent or both are volatile, ordering is based on name.



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# File 'lib/tdp.rb', line 140

def <=>(other)
  return -1 if permanent? && other.volatile?
  return 1 if volatile? && other.permanent?
  @name <=> other.name
end

#permanent? ⇒ Boolean

Returns true if patch is permanent.

Returns:

  • (Boolean) 


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# File 'lib/tdp.rb', line 131

def permanent?
  TDP.permanent_patch_file?(@name)
end

#volatile? ⇒ Boolean

Returns true if patch is volatile.

Returns:

  • (Boolean) 


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# File 'lib/tdp.rb', line 124

def volatile?
  TDP.volatile_patch_file?(@name)
end