Class: XMigra::SubversionSpecifics::VersionComparator

Inherits:
Object
  • Object
show all
Defined in:
lib/xmigra/vcs_support/svn.rb

Instance Method Summary collapse

Constructor Details

#initialize(vcs_object, options = {}) ⇒ VersionComparator

vcs_object.kind_of?(SubversionSpecifics)



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# File 'lib/xmigra/vcs_support/svn.rb', line 237

def initialize(vcs_object, options={})
  @object = vcs_object
  @expected_content_method = options[:expected_content_method]
  @path_status = Hash.new do |h, file_path|
    file_path = Pathname(file_path).expand_path
    next h[file_path] if h.has_key?(file_path)
    h[file_path] = @object.subversion_retrieve_status(file_path)
  end
end

Instance Method Details

#relative_version(file_path) ⇒ Object 



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# File 'lib/xmigra/vcs_support/svn.rb', line 247

def relative_version(file_path)
  # Comparing @object.file_path (a) to file_path (b)
  #
  # returns: :newer, :equal, :older, or :missing
  
  b_status = @path_status[file_path].elements['entry/wc-status']
  
  return :missing if b_status.nil? || ['deleted', 'missing'].include?(b_status.attributes['item'])
  
  a_status = @path_status[@object.file_path].elements['entry/wc-status']
  
  if ['unversioned', 'added'].include? a_status.attributes['item']
    if ['unversioned', 'added', 'modified'].include? b_status.attributes['item']
      return relative_version_by_content(file_path)
    end
    
    return :older
  elsif a_status.attributes['item'] == 'normal'
    # Look for re-introduction of a declarative that was previously destroyed or renounced
    if (['unversioned', 'added'].include? b_status.attributes['item']) && [:renunciation, :destruction].include?(@object.goal)
      return :unimplemented
    end
    
    return :newer unless b_status.attributes['item'] == 'normal'
    
    return begin
      a_revision = a_status.elements['commit'].attributes['revision'].to_i
      b_revision = b_status.elements['commit'].attributes['revision'].to_i
      
      if a_revision < b_revision
        :newer
      elsif b_revision < a_revision
        :older
      else
        :equal
      end
    end
  elsif b_status.attributes['item'] == 'normal'
    return :older
  else
    return relative_version_by_content(file_path)
  end
end

#relative_version_by_content(file_path) ⇒ Object 



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# File 'lib/xmigra/vcs_support/svn.rb', line 291

def relative_version_by_content(file_path)
  ec_method = @expected_content_method
  if !ec_method || @object.send(ec_method, file_path)
    return :equal
  else
    return :newer
  end
end