Class: Fig::WorkingDirectoryMaintainer

Inherits:
Object
  • Object
show all
Defined in:
lib/fig/workingdirectorymaintainer.rb

Overview

Copies files from the project directories in FIG_HOME to the user’s working directory. It keeps track of which files have already been copied, and which package/versions they came from, and deletes files as necessary to ensure that we never have files from two different versions of the same package in the user’s working directory.

Instance Method Summary collapse

Constructor Details

#initialize(base_dir) ⇒ WorkingDirectoryMaintainer

Returns a new instance of WorkingDirectoryMaintainer.



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# File 'lib/fig/workingdirectorymaintainer.rb', line 16

def initialize(base_dir)
  @base_dir = base_dir
  @package_metadata_by_name = {}
  @local_fig_data_directory = File.join(@base_dir, '.fig')
  @metadata_file = File.join(@local_fig_data_directory, 'retrieve')

  if File.exist?(@metadata_file)
    load_metadata()
  end
end

Instance Method Details

#prepare_for_shutdown(purged_unused_packages) ⇒ Object 



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# File 'lib/fig/workingdirectorymaintainer.rb', line 46

def prepare_for_shutdown(purged_unused_packages)
  if purged_unused_packages
    clean_up_unused_packages()
  end

  save_metadata()

  return
end

#retrieve(source, relpath) ⇒ Object 



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# File 'lib/fig/workingdirectorymaintainer.rb', line 40

def retrieve(source, relpath)
  copy(source, relpath)

  return
end

#switch_to_package_version(name, version) ⇒ Object 



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# File 'lib/fig/workingdirectorymaintainer.rb', line 27

def switch_to_package_version(name, version)
  @package_meta = @package_metadata_by_name[name]
  if @package_meta && @package_meta.current_version != version
    clean_up_package_files()
    @package_meta = nil
  end
  if not @package_meta
    @package_meta = reset_package_metadata_with_version(name, version)
  end

  return
end