discourse/lib/onebox/engine/github_gist_onebox.rb

82 lines
1.6 KiB
Ruby

# frozen_string_literal: true
module Onebox
module Engine
class GithubGistOnebox
include Engine
include LayoutSupport
include JSON
MAX_FILES = 3
matches_regexp(/^http(?:s)?:\/\/gist\.(?:(?:\w)+\.)?(github)\.com(?:\/)?/)
always_https
def url
"https://api.github.com/gists/#{match[:sha]}"
end
private
def data
@data ||= {
title: 'gist.github.com',
link: link,
gist_files: gist_files.take(MAX_FILES),
truncated_files?: truncated_files?
}
end
def truncated_files?
gist_files.size > MAX_FILES
end
def gist_files
return [] unless gist_api
@gist_files ||= gist_api["files"].values.map do |file_json|
GistFile.new(file_json)
end
end
def gist_api
@raw ||= raw.clone
rescue OpenURI::HTTPError
# The Gist API rate limit of 60 requests per hour was reached.
nil
end
def match
@match ||= @url.match(%r{gist\.github\.com/([^/]+/)?(?<sha>[0-9a-f]+)})
end
class GistFile
attr_reader :filename
attr_reader :language
MAX_LINES = 10
def initialize(json)
@json = json
@filename = @json["filename"]
@language = @json["language"]
end
def content
lines.take(MAX_LINES).join("\n")
end
def truncated?
lines.size > MAX_LINES
end
private
def lines
@lines ||= @json["content"].split("\n")
end
end
end
end
end