Class: Derelict::Box::Manager

Inherits:
Object
  • Object
show all
Extended by:
Memoist
Includes:
Utils::Logger
Defined in:
lib/derelict/box/manager.rb

Overview

A class that handles managing boxes for a Vagrant instance

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Utils::Logger

#logger

Constructor Details

#initialize(instance) ⇒ Manager

Initializes a Manager for use with a particular instance

* instance: The Derelict::Instance which will have its
            boxes managed by this Manager



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# File 'lib/derelict/box/manager.rb', line 17

def initialize(instance)
  @instance = instance
  logger.debug "Successfully initialized #{description}"
end

Instance Attribute Details

#instance ⇒ Object (readonly)

Returns the value of attribute instance.



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# File 'lib/derelict/box/manager.rb', line 11

def instance
  @instance
end

Instance Method Details

#add(box_name, source, options = {}) ⇒ Object

Adds a box from a file or URL

The provider will be automatically determined from the box file’s manifest.

* box_name: The name of the box to add (e.g. "precise64")
* source:   The URL or path to the box file
* options:  Hash of options. Valid keys:
   * log:   Whether to log the output (optional, defaults to
            false)



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# File 'lib/derelict/box/manager.rb', line 50

def add(box_name, source, options = {})
  options = {:log => false}.merge(options)
  logger.info <<-END.gsub(/ {10}|\n\Z/, '')
    Adding box '#{box_name}' from '#{source}' using #{description}
  END

  command = [:box, "add", box_name, source]

  log_block = options[:log] ? shell_log_block : nil
  instance.execute!(*command, &log_block).tap do
    flush_cache # flush memoized method return values
  end
end

#description ⇒ Object

Provides a description of this Connection

Mainly used for log messages.



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# File 'lib/derelict/box/manager.rb', line 105

def description
  "Derelict::Box::Manager for #{instance.description}"
end

#fetch(box_name, provider) ⇒ Object

Retrieves a box with a particular name

* box_name: Name of the box to look for (as a string)



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# File 'lib/derelict/box/manager.rb', line 93

def fetch(box_name, provider)
  box = list.find do |box|
    box.name == box_name && box.provider == provider
  end

  raise Box::NotFound.new box_name, provider if box.nil?
  box
end

#list ⇒ Object

Retrieves the Set of currently installed boxes



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# File 'lib/derelict/box/manager.rb', line 23

def list
  logger.info "Retrieving Vagrant box list for #{description}"
  output = instance.execute!(:box, "list").stdout
  Derelict::Parser::BoxList.new(output).boxes
end

#present?(box_name, provider) ⇒ Boolean

Determines whether a particular box is installed

* box_name: Name of the box to look for (as a string)

Returns:

  • (Boolean) 


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# File 'lib/derelict/box/manager.rb', line 33

def present?(box_name, provider)
  fetch(box_name, provider)
  true
rescue Box::NotFound
  false
end

#remove(box_name, options = {}) ⇒ Object

Removes an installed box for a particular provider

* box_name:    Name of the box to remove (e.g. "precise64")
* options:     Hash of options. Valid keys:
   * log:      Whether to log the output (optional, defaults
               to false)
   * provider: If specified, only the box for a particular
               provider is removed; otherwise (by default),
               the box is removed for all providers



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# File 'lib/derelict/box/manager.rb', line 73

def remove(box_name, options = {})
  options = {:log => false, :provider => nil}.merge(options)

  provider = options[:provider]
  command = [:box, "remove", box_name]
  command << provider unless provider.nil?

  logger.info <<-END.gsub(/ {10}|\n\Z/, '')
    Removing box '#{box_name}' for '#{provider}' using #{description}
  END

  log_block = options[:log] ? shell_log_block : nil
  instance.execute!(*command, &log_block).tap do
    flush_cache # flush memoized method return values
  end
end