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-rwxr-xr-xbin/pngquant64
1 files changed, 64 insertions, 0 deletions
diff --git a/bin/pngquant b/bin/pngquant
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index 00000000000..8434e9d3ec9
--- /dev/null
+++ b/bin/pngquant
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+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'rails'
+require 'png_quantizator'
+require 'parallel'
+require 'rainbow/ext/string'
+require_relative '../tooling/lib/tooling/images'
+
+return if Rails.env.production?
+
+def usage
+ puts <<~EOF
+ Usage: #{$0} [compress|lint] [PATH..]
+
+ compress Compress all documentation PNG images using pngquant.
+ lint Checks that all documentation PNG images have been compressed with pngquant.
+
+ PATH One or more files or directories. If empty, `doc/**/*.png` is used.
+
+ EOF
+end
+
+command = ARGV.shift
+paths = ARGV.presence || ['doc']
+
+files = paths.flat_map do |path|
+ File.directory?(path) ? Dir.glob(File.join(path, '/**/*.png')) : path
+end
+
+case command
+when 'compress'
+ puts "Compressing #{files.size} PNG files"
+
+ Parallel.each(files) do |file|
+ was_uncompressed, savings = Tooling::Image.compress_image(file)
+
+ if was_uncompressed
+ puts "#{file} was reduced by #{savings} bytes"
+ end
+ end
+when 'lint'
+ puts "Checking #{files.size} PNG files"
+
+ uncompressed_files = Parallel.map(files) do |file|
+ is_uncompressed, _ = Tooling::Image.compress_image(file, true)
+ if is_uncompressed
+ puts "Uncompressed file detected: ".color(:red) + file
+ file
+ end
+ end.compact
+
+ if uncompressed_files.empty?
+ puts "All documentation images are optimally compressed!".color(:green)
+ else
+ warn(
+ "The #{uncompressed_files.size} image(s) above have not been optimally compressed using pngquant.".color(:red),
+ 'Please run "bin/pngquant compress" and commit the result.'
+ )
+ abort
+ end
+else
+ usage
+end