Class: DmSvn::Svn::Changeset

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/dm-svn/svn/changeset.rb

Overview

Store information about a particular changeset, and runs the actual updates for that changeset. Aside from handling the list of changes, it can be passed to methods that need the revision, date and author.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(changes, revision, author, date, sync) ⇒ Changeset

Returns a new instance of Changeset.



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# File 'lib/dm-svn/svn/changeset.rb', line 13

def initialize(changes, revision, author, date, sync)
  @changes, @revision, @author, @date = changes, revision, author, date
  @model, @config, @repos, @sync = sync.model, sync.config, sync.repos, sync
end

Instance Attribute Details

#author ⇒ Object (readonly)

Returns the value of attribute author.



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# File 'lib/dm-svn/svn/changeset.rb', line 11

def author
  @author
end

#changes ⇒ Object (readonly)

Returns the value of attribute changes.



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# File 'lib/dm-svn/svn/changeset.rb', line 11

def changes
  @changes
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/dm-svn/svn/changeset.rb', line 11

def config
  @config
end

#date ⇒ Object (readonly)

Returns the value of attribute date.



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# File 'lib/dm-svn/svn/changeset.rb', line 11

def date
  @date
end

#repos ⇒ Object (readonly)

Returns the value of attribute repos.



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# File 'lib/dm-svn/svn/changeset.rb', line 11

def repos
  @repos
end

#revision ⇒ Object (readonly)

Returns the value of attribute revision.



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# File 'lib/dm-svn/svn/changeset.rb', line 11

def revision
  @revision
end

Instance Method Details

#<=>(other) ⇒ Object

Changesets are sorted by revision number, ascending.



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# File 'lib/dm-svn/svn/changeset.rb', line 19

def <=>(other)
  self.revision <=> other.revision
end

#fs_path(path) ⇒ Object

Path used to communicate with svn repos.



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# File 'lib/dm-svn/svn/changeset.rb', line 92

def fs_path(path)
  path = path[@config.path_from_root.length..-1].to_s
  path = path[1..-1] if path[0] == ?/
  path
end

#process ⇒ Object

Process this changeset. This doesn’t account for possible move/replace conflicts (A node is moved, then the old node is replaced by a new one). I assume those are rare enough that I won’t code around them, for now.



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# File 'lib/dm-svn/svn/changeset.rb', line 27

def process
  return if changes.nil?
  
  modified, deleted, copied = [], [], []
  
  changes.each_pair do |path, change|
    next if short_path(path).blank? || !path_in_root?(path)
    
    case change.action
    when "M", "A", "R" # Modified, Added or Replaced
      modified << path
    when "D"
      deleted << path
    end
    copied << [path, change.copyfrom_path] if change.copyfrom_path
  end
        
  # Perform moves
  copied.each do |copy|
    del = deleted.find { |d| d == copy[1] }
    if del
      # Change the path. No need to perform other updates, as this is an
      # "A" or "R" and thus is in the +modified+ Array.
      record = get(del)
      record.move_to(short_path(copy[0])) if record
    end
  end
  
  # Perform deletes
  deleted.each do |path|
    record = get(path)
    record.destroy if record # May have been moved or refer to a directory
  end
  
  # Perform modifies and adds
  modified.each do |path|
    node = Node.new(self, path)
    
    if @config.extension && 
        node.file? &&
        path !~ /\.#{@config.extension}\Z/ 
      if path =~ /\.yml\Z/ && @model.svn_category_model
        # Update parent directory, if applicable
        path = path.split("/")[0..-2].join("/")
        node = Node.new(self, path)
      else
        next
      end
    end
    
    record = get(path) || new_record(node)
  
    # update record
    record.update_from_svn(node)
  end
end

#short_path(path) ⇒ Object

Get the relative path from config.uri



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# File 'lib/dm-svn/svn/changeset.rb', line 85

def short_path(path)
  path = fs_path(path)
  path = path.sub(/\.#{@config.extension}\Z/, '') if @config.extension
  path
end