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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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17
app/helpers/jsonld_helper.rb
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@ -48,7 +48,7 @@ module JsonLdHelper
end
def canonicalize(json)
graph = RDF::Graph.new << JSON::LD::API.toRdf(json)
graph = RDF::Graph.new << JSON::LD::API.toRdf(json, documentLoader: method(:load_jsonld_context))
graph.dump(:normalize)
end
@ -90,4 +90,19 @@ module JsonLdHelper
request.add_headers('Accept' => 'application/activity+json, application/ld+json')
request
end
def load_jsonld_context(url, _options = {}, &_block)
json = Rails.cache.fetch("jsonld:context:#{url}", expires_in: 30.days, raw: true) do
request = Request.new(:get, url)
request.add_headers('Accept' => 'application/ld+json')
request.perform do |res|
raise JSON::LD::JsonLdError::LoadingDocumentFailed unless res.code == 200 && res.mime_type == 'application/ld+json'
res.body_with_limit
end
end
doc = JSON::LD::API::RemoteDocument.new(url, json)
block_given? ? yield(doc) : doc
end
end