48 lines
1.5 KiB
Ruby
48 lines
1.5 KiB
Ruby
module Vagrant
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module Plugin
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module V2
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# A base class for a guest OS. A guest OS is responsible for detecting
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# that the guest operating system running within the machine. The guest
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# can then be extended with various "guest capabilities" which are their
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# own form of plugin.
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#
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# The guest class itself is only responsible for detecting itself,
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# and may provide helpers for the capabilities.
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class Guest
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# This method is called when the machine is booted and has communication
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# capabilities in order to detect whether this guest operating system
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# is running within the machine.
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#
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# @return [Boolean]
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def detect?(machine)
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false
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end
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# Returns list of parents for
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# this guest
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#
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# @return [Array<Symbol>]
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def parents
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guests = Vagrant.plugin("2").manager.guests.to_hash
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ancestors = []
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n, entry = guests.detect { |_, v| v.first == self.class }
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while n
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n = nil
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if entry.last
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ancestors << entry.last
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# `guests` might not have the key, if the entry does not exist within
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# the Ruby runtime. For example, if a Ruby plugin has a dependency
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# on a Go plugin.
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if guests.has_key?(entry.last)
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entry = guests[entry.last]
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n = entry.last
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end
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end
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end
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ancestors
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end
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end
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end
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end
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end
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