Class: Cask::CaskLoader::FromPathLoader Private

Inherits:
FromContentLoader show all
Defined in:
Library/Homebrew/cask/cask_loader.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Loads a cask from a path.

Direct Known Subclasses

FromTapPathLoader, FromURILoader, NullLoader

Instance Attribute Summary collapse

Attributes inherited from FromContentLoader

#content

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ FromPathLoader

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

rubocop:disable Lint/MissingSuper


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# File 'Library/Homebrew/cask/cask_loader.rb', line 56

def initialize(path) # rubocop:disable Lint/MissingSuper
  path = Pathname(path).expand_path

  @token = path.basename(".rb").to_s
  @path = path
end

Instance Attribute Details

#path ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 


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# File 'Library/Homebrew/cask/cask_loader.rb', line 54

def path
  @path
end

#token ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 


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# File 'Library/Homebrew/cask/cask_loader.rb', line 54

def token
  @token
end

Class Method Details

.can_load?(ref) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/cask/cask_loader.rb', line 49

def self.can_load?(ref)
  path = Pathname(ref)
  path.extname == ".rb" && path.expand_path.exist?
end

Instance Method Details

#load(config:) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Raises:


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# File 'Library/Homebrew/cask/cask_loader.rb', line 63

def load(config:)
  raise CaskUnavailableError.new(token, "'#{path}' does not exist.")  unless path.exist?
  raise CaskUnavailableError.new(token, "'#{path}' is not readable.") unless path.readable?
  raise CaskUnavailableError.new(token, "'#{path}' is not a file.")   unless path.file?

  @content = path.read(encoding: "UTF-8")
  @config = config

  begin
    instance_eval(content, path).tap do |cask|
      raise CaskUnreadableError.new(token, "'#{path}' does not contain a cask.") unless cask.is_a?(Cask)
    end
  rescue NameError, ArgumentError, ScriptError => e
    error = CaskUnreadableError.new(token, e.message)
    error.set_backtrace e.backtrace
    raise error
  end
end