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# The Cache Buster extension
class Middleman::Extensions::CacheBuster < ::Middleman::Extension
def initialize(app, options_hash={}, &block)
super
# After compass is setup, make it use the registered cache buster
app.compass_config do |config|
config.asset_cache_buster do |path, real_path|
real_path = real_path.path if real_path.is_a? File
real_path = real_path.gsub(File.join(root, build_dir), source)
if File.readable?(real_path)
File.mtime(real_path).strftime("%s")
else
logger.warn "WARNING: '#{File.basename(path)}' was not found (or cannot be read) in #{File.dirname(real_path)}"
end
end
end if app.respond_to?(:compass_config)
end
helpers do
# asset_url override if we're using cache busting
# @param [String] path
# @param [String] prefix
def asset_url(path, prefix="")
http_path = super
if http_path.include?("://") || !%w(.css .png .jpg .jpeg .svg .svgz .js .gif).include?(File.extname(http_path))
http_path
else
if respond_to?(:http_images_path) && prefix == http_images_path
prefix = images_dir
end
real_path_static = File.join(prefix, path)
if build?
real_path_dynamic = File.join(build_dir, prefix, path)
real_path_dynamic = File.expand_path(real_path_dynamic, root)
http_path << "?" + File.mtime(real_path_dynamic).strftime("%s") if File.readable?(real_path_dynamic)
elsif resource = sitemap.find_resource_by_path(real_path_static)
if !resource.template?
http_path << "?" + File.mtime(resource.source_file).strftime("%s")
else
# It's a template, possible with partials. We can't really
# know when it's updated, so generate fresh cache buster every
# time during developement
http_path << "?" + Time.now.strftime("%s")
end
end
http_path
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems