60 lines
1.8 KiB
Ruby
60 lines
1.8 KiB
Ruby
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#! /usr/bin/env ruby
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# frozen_string_literal: true
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# It's important that our JS asset builds are reproducible so that users aren't forced to re-download
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# assets after every deploy. This script runs two builds and compares the output to ensure that they
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# are identical.
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require "digest"
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DIST_DIR = File.expand_path("#{__dir__}/../app/assets/javascripts/discourse/dist")
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def collect_asset_info
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files =
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Dir.glob("**/*", base: DIST_DIR).reject { |path| File.directory? "#{DIST_DIR}/#{path}" }.sort
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puts "Found #{files.length} files"
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raise "No files found" if files.empty?
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digests = files.map { |file| Digest::MD5.file("#{DIST_DIR}/#{file}").hexdigest }
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{ files: files, digests: digests }
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end
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puts "Running first build..."
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system "#{__dir__}/../bin/yarn-app ember build -prod", exception: true
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first_build_info = collect_asset_info
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puts "Running second build..."
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system "#{__dir__}/../bin/yarn-app ember build -prod", exception: true
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second_build_info = collect_asset_info
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puts nil, nil, "Comparing builds...", nil, nil
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if first_build_info[:files] != second_build_info[:files]
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puts "Set of files is different"
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new_assets = first_build_info[:files].difference(second_build_info[:files])
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puts "Second build had additional assets: #{new_assets.inspect}"
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missing_assets = second_build_info[:files].difference(first_build_info[:files])
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puts "Second build was missing assets: #{missing_assets.inspect}"
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exit 1
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else
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puts "Both builds produced the same file names"
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end
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if first_build_info[:digests] != second_build_info[:digests]
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puts "File digests are different"
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first_build_info[:files].each_with_index do |file, index|
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if first_build_info[:digests][index] != second_build_info[:digests][index]
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puts "File #{file} has different digest"
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end
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end
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exit 1
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else
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puts "Files in both builds had identical digests"
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end
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puts nil, "Success!"
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