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# frozen_string_literal: true
require File.expand_path("../compact_index", __FILE__)
Artifice.deactivate
class CompactIndexPartialUpdate < CompactIndexAPI
# Stub the server to never return 304s. This simulates the behaviour of
# Fastly / Rubygems ignoring ETag headers.
def not_modified?(_checksum)
false
end
get "/versions" do
cached_versions_path = File.join(
Bundler.rubygems.user_home, ".bundle", "cache", "compact_index",
"localgemserver.test.80.dd34752a738ee965a2a4298dc16db6c5", "versions"
)
# Verify a cached copy of the versions file exists
unless File.read(cached_versions_path).start_with?("created_at: ")
raise("Cached versions file should be present and have content")
end
# Verify that a partial request is made, starting from the index of the
# final byte of the cached file.
unless env["HTTP_RANGE"] == "bytes=#{File.read(cached_versions_path).bytesize - 1}-"
raise("Range header should be present, and start from the index of the final byte of the cache.")
end
etag_response do
# Return the exact contents of the cache.
File.read(cached_versions_path)
end
end
end
Artifice.activate_with(CompactIndexPartialUpdate)
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