Use Action API instead of Gerrit API when getting the URLs of extensions

[lens0021]

docker-mediawiki/extension-installer/install_extensions.rb

Lines 58 to 66 in 84cfc3a

	branch_info_url = "https://gerrit.wikimedia.org/r/projects/mediawiki%2F#{type}s%2F#{name}/branches/#{MEDIAWIKI_BRANCH}"
	puts "Fetching the infomation of #{name} from #{branch_info_url}"
	response = Net::HTTP.get(URI(branch_info_url))
	# Response starts with a magic prefix line ")]}'\n", so strip it.
	# See:
	# https://gerrit-review.googlesource.com/Documentation/rest-api.html#output
	response = response[5..-1]
	sha = JSON.parse(response)['revision']
	"https://extdist.wmflabs.org/dist/#{type}s/#{name}-#{MEDIAWIKI_BRANCH}-#{sha[0..6]}.tar.gz\n out=#{name}.tar.gz\n"

The ExtensionDistributor API can
get you download URLs, e.g. this:
https://www.mediawiki.org/wiki/Special:ApiSandbox#action=query&format=json&list=extdistbranches&formatversion=2&edbexts=WikiEditor

--
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