Class: Bindep::Context

Inherits:
Object
  • Object
show all
Defined in:
lib/bindep/context.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Context

Create a new Bindep context with its own options and item registry.



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# File 'lib/bindep/context.rb', line 6

def initialize
  @registry = {}

  @no_install = false
  @no_confirm_before_install = false
  @silent_exceptions = false

  unless Helpers.which_test
    error "Command detection does not work on your system. Bindep cannot run on your system!"
  end
end

Instance Attribute Details

#no_confirm_before_install ⇒ Object

Returns the value of attribute no_confirm_before_install.



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# File 'lib/bindep/context.rb', line 3

def no_confirm_before_install
  @no_confirm_before_install
end

#no_install ⇒ Object

Returns the value of attribute no_install.



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# File 'lib/bindep/context.rb', line 3

def no_install
  @no_install
end

#silent_exceptions ⇒ Object

Returns the value of attribute silent_exceptions.



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# File 'lib/bindep/context.rb', line 3

def silent_exceptions
  @silent_exceptions
end

Instance Method Details

#check(id, force_install = false, &block) ⇒ Object

Check if a given item is installed, can also define item beforehand if block is given.



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# File 'lib/bindep/context.rb', line 27

def check(id, force_install = false, &block)
  item = block_given? ? define(id, &block) : get_item(id)

  [ item.depends ].flatten.compact.each { |dep| check dep }
  
  install item if force_install || item.local_command.nil?
end

#define(id) {|item| ... } ⇒ Object

Define a new item.

Yields:

  • (item) 


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# File 'lib/bindep/context.rb', line 19

def define(id, &block)
  item = Item.new(id)
  yield item

  @registry[item.id] = item
end

#get_item(id) ⇒ Object

Gets an item from the registry.



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# File 'lib/bindep/context.rb', line 44

def get_item(id)
  @registry[id.to_sym] || raise(Error, "Cannot find item '#{id.to_sym}' in context!")
end

#run(id, args = [], stdin = nil, raise_on_failure = true) ⇒ Object

Runs the specified command with the given arguments.



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# File 'lib/bindep/context.rb', line 36

def run(id, args = [], stdin = nil, raise_on_failure = true)
  check id

  cmd_string = "#{get_item(id).local_command} #{[ args ].flatten.join(" ")}".strip
  Helpers.cmd cmd_string, stdin, raise_on_failure
end