Class: Covered::Persist

Inherits:
Wrapper show all
Defined in:
lib/covered/persist.rb

Constant Summary collapse

DEFAULT_PATH = 
".covered.db"

Instance Attribute Summary

Attributes inherited from Wrapper

#output

Instance Method Summary collapse

Methods inherited from Wrapper

#accept?, #add, #clear, #expand_path, #mark, #relative_path, #start, #to_h

Methods inherited from Base

#accept?, #add, #clear, #expand_path, #mark, #relative_path, #start

Constructor Details

#initialize(output, path = DEFAULT_PATH) ⇒ Persist

Returns a new instance of Persist.



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# File 'lib/covered/persist.rb', line 16

def initialize(output, path = DEFAULT_PATH)
  super(output)
  
  @path = self.expand_path(path)
end

Instance Method Details

#apply(record, ignore_mtime: false) ⇒ Object 



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# File 'lib/covered/persist.rb', line 22

def apply(record, ignore_mtime: false)
  if coverage = record[:coverage]
    if path = record[:path]
      path = self.expand_path(path)
      coverage.path = path
    end
    
    if ignore_mtime || coverage.fresh?
      add(coverage)
      return true
    end
  end
  
  return false
end

#each(&block) ⇒ Object 



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# File 'lib/covered/persist.rb', line 86

def each(&block)
  return to_enum unless block_given?
  
  @output.clear
  self.load!
  
  super
end

#finish ⇒ Object 



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# File 'lib/covered/persist.rb', line 80

def finish
  super
  
  self.save!
end

#load!(**options) ⇒ Object 



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# File 'lib/covered/persist.rb', line 48

def load!(**options)
  return unless File.exist?(@path)
  
  # Load existing coverage information and mark all files:
  File.open(@path, "rb") do |file|
    file.flock(File::LOCK_SH)
    
    make_unpacker(file).each do |record|
      # pp load: record
      self.apply(record, **options)
    end
  end
rescue
  raise LoadError, "Failed to load coverage from #{@path}, maybe old format or corrupt!"
end

#make_factory ⇒ Object 



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# File 'lib/covered/persist.rb', line 95

def make_factory
  factory = MessagePack::Factory.new
  
  factory.register_type(0x00, Symbol)
  
  factory.register_type(0x01, Time,
    packer: MessagePack::Time::Packer,
    unpacker: MessagePack::Time::Unpacker
  )
  
  factory.register_type(0x20, Source,
    recursive: true,
    packer: :serialize,
    unpacker: :deserialize,
  )
  
  factory.register_type(0x21, Coverage,
    recursive: true,
    packer: :serialize,
    unpacker: :deserialize,
  )
  
  return factory
end

#make_packer(io) ⇒ Object 



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# File 'lib/covered/persist.rb', line 120

def make_packer(io)
  return make_factory.packer(io)
end

#make_unpacker(io) ⇒ Object 



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# File 'lib/covered/persist.rb', line 124

def make_unpacker(io)
  return make_factory.unpacker(io)
end

#save! ⇒ Object 



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# File 'lib/covered/persist.rb', line 64

def save!
  # Dump all coverage:
  File.open(@path, "ab") do |file|
    file.flock(File::LOCK_EX)
    
    packer = make_packer(file)
    
    @output.each do |coverage|
      # pp save: coverage
      packer.write(serialize(coverage))
    end
    
    packer.flush
  end
end

#serialize(coverage) ⇒ Object 



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# File 'lib/covered/persist.rb', line 38

def serialize(coverage)
  {
    # We want to use relative paths so that moving the repo won't break everything:
    pid: Process.pid,
    path: relative_path(coverage.path),
    # relative_path: relative_path(coverage.path),
    coverage: coverage,
  }
end