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Slightly reduce RAM usage (#7301)

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* No need to re-require sidekiq plugins, they are required via Gemfile

* Add derailed_benchmarks tool, no need to require TTY gems in Gemfile

* Replace ruby-oembed with FetchOEmbedService

Reduce startup by 45382 allocated objects

* Remove preloaded JSON-LD in favour of caching HTTP responses

Reduce boot RAM by about 6 MiB

* Fix tests

* Fix test suite by stubbing out JSON-LD contexts
This commit is contained in:
Eugen Rochko 2018-05-02 18:58:48 +02:00 • committed by GitHub
parent 71a7cea73f
commit cb5b5cb5f7
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76 changed files with 784 additions and 471 deletions
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47
app/lib/provider_discovery.rb
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@ -1,47 +0,0 @@
# frozen_string_literal: true
class ProviderDiscovery < OEmbed::ProviderDiscovery
class << self
def get(url, **options)
provider = discover_provider(url, options)
options.delete(:html)
provider.get(url, options)
end
def discover_provider(url, **options)
format = options[:format]
html = if options[:html]
Nokogiri::HTML(options[:html])
else
Request.new(:get, url).perform do |res|
raise OEmbed::NotFound, url if res.code != 200 || res.mime_type != 'text/html'
Nokogiri::HTML(res.body_with_limit)
end
end
if format.nil? || format == :json
provider_endpoint ||= html.at_xpath('//link[@type="application/json+oembed"]')&.attribute('href')&.value
format ||= :json if provider_endpoint
end
if format.nil? || format == :xml
provider_endpoint ||= html.at_xpath('//link[@type="text/xml+oembed"]')&.attribute('href')&.value
format ||= :xml if provider_endpoint
end
raise OEmbed::NotFound, url if provider_endpoint.nil?
begin
provider_endpoint = Addressable::URI.parse(provider_endpoint)
provider_endpoint.query = nil
provider_endpoint = provider_endpoint.to_s
rescue Addressable::URI::InvalidURIError
raise OEmbed::NotFound, url
end
OEmbed::Provider.new(provider_endpoint, format)
end
end
end