54 lines
1.1 KiB
Ruby
54 lines
1.1 KiB
Ruby
require 'yaml'
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class FSSM::State
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def initialize(path, preload=true)
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@path = path
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@cache = FSSM::Cache.new
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snapshot(@path.to_pathname) if preload
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end
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def refresh(base=nil)
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previous, current = recache(base || @path.to_pathname)
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deleted(previous, current)
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created(previous, current)
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modified(previous, current)
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end
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private
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def created(previous, current)
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(current.keys - previous.keys).each {|created| @path.create(created)}
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end
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def deleted(previous, current)
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(previous.keys - current.keys).each {|deleted| @path.delete(deleted)}
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end
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def modified(previous, current)
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(current.keys & previous.keys).each do |file|
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@path.update(file) if (current[file] <=> previous[file]) != 0
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end
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end
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def recache(base)
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base = Pathname.for(base)
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previous = @cache.files
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snapshot(base)
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current = @cache.files
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[previous, current]
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end
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def snapshot(base)
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base = Pathname.for(base)
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@cache.unset(base)
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@path.glob.each {|glob| add_glob(base, glob)}
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end
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def add_glob(base, glob)
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Pathname.glob(base.join(glob)).each do |fn|
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@cache.set(fn)
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end
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end
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end
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