Class: Build::Files::State

Inherits:
Object
  • Object
show all
Defined in:
lib/build/files/state.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(files) ⇒ State

Returns a new instance of State.

Raises:

  • (ArgumentError) 


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# File 'lib/build/files/state.rb', line 45

def initialize(files)
  raise ArgumentError.new("Invalid files list: #{files}") unless Files::List === files

  @files = files
    
  @times = {}

  update!
end

Instance Attribute Details

#added ⇒ Object (readonly)

Returns the value of attribute added.



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# File 'lib/build/files/state.rb', line 57

def added
  @added
end

#changed ⇒ Object (readonly)

Returns the value of attribute changed.



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# File 'lib/build/files/state.rb', line 59

def changed
  @changed
end

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/build/files/state.rb', line 55

def files
  @files
end

#missing ⇒ Object (readonly)

Returns the value of attribute missing.



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# File 'lib/build/files/state.rb', line 60

def missing
  @missing
end

#newest_time ⇒ Object (readonly)

Returns the value of attribute newest_time.



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# File 'lib/build/files/state.rb', line 118

def newest_time
  @newest_time
end

#oldest_time ⇒ Object (readonly)

Returns the value of attribute oldest_time.



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# File 'lib/build/files/state.rb', line 117

def oldest_time
  @oldest_time
end

#removed ⇒ Object (readonly)

Returns the value of attribute removed.



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# File 'lib/build/files/state.rb', line 58

def removed
  @removed
end

#times ⇒ Object (readonly)

Returns the value of attribute times.



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# File 'lib/build/files/state.rb', line 62

def times
  @times
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/build/files/state.rb', line 131

def empty?
  @files.to_a.empty?
end

#inspect ⇒ Object 



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# File 'lib/build/files/state.rb', line 135

def inspect
  "<State Added:#{@added} Removed:#{@removed} Changed:#{@changed} Missing:#{@missing}>"
end

#intersects?(outputs) ⇒ Boolean

Outputs is a list of full paths and must not include any patterns/globs.

Returns:

  • (Boolean) 


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# File 'lib/build/files/state.rb', line 127

def intersects?(outputs)
  @files.intersects?(outputs)
end

#missing? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/build/files/state.rb', line 122

def missing?
  !@missing.empty?
end

#update! ⇒ Object 



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# File 'lib/build/files/state.rb', line 64

def update!
  last_times = @times
  @times = {}

  @added = []
  @removed = []
  @changed = []
  @missing = []

  file_times = []
  
  @files.each do |path|
    # When processing the same path twice (perhaps by accident), we should skip it otherwise it might cause issues when being deleted from last_times multuple times.
    next if @times.include? path
    
    if File.exist?(path)
      modified_time = File.mtime(path)
    
      if last_time = last_times.delete(path)
        # Path was valid last update:
        if modified_time != last_time
          @changed << path
          
          # puts "Changed: #{path}"
        end
      else
        # Path didn't exist before:
        @added << path
        
        # puts "Added: #{path}"
      end
    
      @times[path] = modified_time
    
      unless File.directory?(path)
        file_times << FileTime.new(path, modified_time)
      end
    else
      @missing << path
      
      # puts "Missing: #{path}"
    end
  end
  
  @removed = last_times.keys
  # puts "Removed: #{@removed.inspect}" if @removed.size > 0
  
  @oldest_time = file_times.min
  @newest_time = file_times.max
  
  return @added.size > 0 || @changed.size > 0 || @removed.size > 0 || @missing.size > 0
end