51 lines
1.5 KiB
Ruby
51 lines
1.5 KiB
Ruby
# based on https://distresssignal.org/busting-css-cache-with-jekyll-md5-hash
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# https://gist.github.com/BryanSchuetz/2ee8c115096d7dd98f294362f6a667db
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module Jekyll
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module CacheBust
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class CacheDigester
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require 'digest/md5'
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require 'pathname'
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attr_accessor :file_name, :directory
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def initialize(file_name:, directory: nil)
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self.file_name = file_name
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self.directory = directory
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end
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def digest!
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[file_name, '?', Digest::MD5.hexdigest(file_contents)].join
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end
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private
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def directory_files_content
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target_path = File.join(directory, '**', '*')
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Dir[target_path].map{|f| File.read(f) unless File.directory?(f) }.join
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end
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def file_content
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local_file_name = file_name.slice((file_name.index('assets/')..-1))
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File.read(local_file_name)
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end
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def file_contents
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is_directory? ? file_content : directory_files_content
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end
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def is_directory?
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directory.nil?
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end
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end
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def bust_file_cache(file_name)
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CacheDigester.new(file_name: file_name, directory: nil).digest!
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end
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def bust_css_cache(file_name)
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CacheDigester.new(file_name: file_name, directory: 'assets/_sass').digest!
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end
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end
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end
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Liquid::Template.register_filter(Jekyll::CacheBust) |