Class: Berkshelf::BaseLocation

Inherits:
Object
  • Object
show all
Defined in:
lib/berkshelf/locations/base.rb

Direct Known Subclasses

GitLocation, PathLocation

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dependency, options = {}) ⇒ BaseLocation

Returns a new instance of BaseLocation.



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# File 'lib/berkshelf/locations/base.rb', line 6

def initialize(dependency, options = {})
  @dependency = dependency
  @options    = options
end

Instance Attribute Details

#dependency ⇒ Object (readonly)

Returns the value of attribute dependency.



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# File 'lib/berkshelf/locations/base.rb', line 3

def dependency
  @dependency
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/berkshelf/locations/base.rb', line 4

def options
  @options
end

Instance Method Details

#cached_cookbook ⇒ CachedCookbook

The cached cookbook for this location.

Returns:

Raises:



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# File 'lib/berkshelf/locations/base.rb', line 31

def cached_cookbook
  raise AbstractFunction,
    "#cached_cookbook must be implemented on #{self.class.name}!"
end

#install ⇒ void

This method returns an undefined value.

Install the given cookbook. Subclasses that implement this method should perform all the installation and validation steps required.

Raises:



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# File 'lib/berkshelf/locations/base.rb', line 23

def install
  raise AbstractFunction,
    "#install must be implemented on #{self.class.name}!"
end

#installed? ⇒ Boolean

Determine if this revision is installed.

Returns:

  • (Boolean)

Raises:



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# File 'lib/berkshelf/locations/base.rb', line 14

def installed?
  raise AbstractFunction,
    "#installed? must be implemented on #{self.class.name}!"
end

#to_lock ⇒ string

The lockfile representation of this location.

Returns:

  • (string)

Raises:



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# File 'lib/berkshelf/locations/base.rb', line 39

def to_lock
  raise AbstractFunction,
    "#to_lock must be implemented on #{self.class.name}!"
end

#validate_cached!(path) ⇒ true

Ensure the given CachedCookbook is valid

Parameters:

  • path (String) —

    the path to the possible cookbook

Returns:

  • (true)

Raises:

  • (NotACookbook) —

    if the cookbook at the path does not have a metadata

  • (CookbookValidationFailure) —

    if given CachedCookbook does not satisfy the constraint of the location

  • (MismatcheCookboookName) —

    if the cookbook does not have a name or if the name is different



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# File 'lib/berkshelf/locations/base.rb', line 57

def validate_cached!(path)
  unless File.cookbook?(path)
    raise NotACookbook.new(path)
  end

  begin
    cookbook = CachedCookbook.from_path(path)
  rescue Ridley::Errors::RidleyError => e
    raise InternalError, "The following error occurred while reading the " \
      "cookbook `#{dependency.name}':\n#{e.class}: #{e.message}"
  end

  unless @dependency.version_constraint.satisfies?(cookbook.version)
    raise CookbookValidationFailure.new(dependency, cookbook)
  end

  unless @dependency.name == cookbook.cookbook_name
    raise MismatchedCookbookName.new(dependency, cookbook)
  end

  true
end