Class: FastCov::TestMap::Reader

Inherits:
Object
  • Object
show all
Defined in:
lib/fast_cov/test_map/reader.rb

Overview

Reads a single sorted fragment file (gzipped or plain text). Merges consecutive entries with the same file path, which occur when multiple fragments are concatenated and sorted into an intermediate.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ Reader

Returns a new instance of Reader.



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# File 'lib/fast_cov/test_map/reader.rb', line 13

def initialize(path)
  @io = path.to_s.end_with?(".gz") ? Zlib::GzipReader.open(path) : File.open(path)
  @exhausted = false
  @next_file_path = nil
  @next_dependencies = nil
  read_line
  advance
end

Instance Attribute Details

#dependencies ⇒ Object (readonly)

Returns the value of attribute dependencies.



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# File 'lib/fast_cov/test_map/reader.rb', line 11

def dependencies
  @dependencies
end

#file_path ⇒ Object (readonly)

Returns the value of attribute file_path.



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# File 'lib/fast_cov/test_map/reader.rb', line 11

def file_path
  @file_path
end

Instance Method Details

#advance ⇒ Object 



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# File 'lib/fast_cov/test_map/reader.rb', line 26

def advance
  if @next_file_path.nil?
    @exhausted = true
    @file_path = nil
    @dependencies = []
    return
  end

  @file_path = @next_file_path
  @dependencies = @next_dependencies
  read_line

  # Merge consecutive lines with the same file path
  while @next_file_path == @file_path
    @dependencies.concat(@next_dependencies)
    read_line
  end
end

#close ⇒ Object 



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# File 'lib/fast_cov/test_map/reader.rb', line 45

def close
  @io.close
end

#exhausted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fast_cov/test_map/reader.rb', line 22

def exhausted?
  @exhausted
end