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# frozen_string_literal: true
module DiffViewer
module ServerSide
extend ActiveSupport::Concern
included do
self.collapse_limit = 1.megabyte
self.size_limit = 5.megabytes
end
def prepare!
return if Feature.enabled?(:disable_load_entire_blob_for_diff_viewer, diff_file.repository.project)
# TODO: remove this after resolving #342703
diff_file.old_blob&.load_all_data!
diff_file.new_blob&.load_all_data!
end
def render_error
# Files that are not stored in the repository, like LFS files and
# build artifacts, can only be rendered using a client-side viewer,
# since we do not want to read large amounts of data into memory on the
# server side. Client-side viewers use JS and can fetch the file from
# `diff_file_blob_raw_path` and `diff_file_old_blob_raw_path` using AJAX.
return :server_side_but_stored_externally if diff_file.stored_externally?
super
end
private
def render_error_reason
return super unless render_error == :server_side_but_stored_externally
if diff_file.external_storage == :lfs
_('it is stored in LFS')
else
_('it is stored externally')
end
end
end
end
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