55 lines
1.6 KiB
Ruby
55 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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return if Rails.env.production?
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require 'png_quantizator'
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require 'parallel'
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require_relative '../../tooling/lib/tooling/images'
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# The amount of variance (in bytes) allowed in
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# file size when testing for compression size
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namespace :pngquant do
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# Returns an array of all images eligible for compression
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def doc_images
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Dir.glob('doc/**/*.png', File::FNM_CASEFOLD)
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end
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desc 'GitLab | Pngquant | Compress all documentation PNG images using pngquant'
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task :compress do
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files = doc_images
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puts "Compressing #{files.size} PNG files in doc/**"
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Parallel.each(files) do |file|
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was_uncompressed, savings = Tooling::Image.compress_image(file)
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if was_uncompressed
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puts "#{file} was reduced by #{savings} bytes"
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end
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end
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end
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desc 'GitLab | Pngquant | Checks that all documentation PNG images have been compressed with pngquant'
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task :lint do
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files = doc_images
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puts "Checking #{files.size} PNG files in doc/**"
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uncompressed_files = Parallel.map(files) do |file|
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is_uncompressed, _ = Tooling::Image.compress_image(file, true)
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if is_uncompressed
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puts "Uncompressed file detected: ".color(:red) + file
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file
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end
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end.compact
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if uncompressed_files.empty?
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puts "All documentation images are optimally compressed!".color(:green)
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else
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warn(
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"The #{uncompressed_files.size} image(s) above have not been optimally compressed using pngquant.".color(:red),
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'Please run "bin/rake pngquant:compress" and commit the result.'
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)
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abort
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end
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end
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end
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