require "http" require "yaml" require "digest/sha1" require "option_parser" require "colorize" # Taken from https://crystal-lang.org/api/1.1.1/OptionParser.html minified = false OptionParser.parse do |parser| parser.banner = "Usage: Fetch VideoJS dependencies [arguments]" parser.on("-m", "--minified", "Use minified versions of VideoJS dependencies (performance and bandwidth benefit)") { minified = true } parser.on("-h", "--help", "Show this help") do puts parser exit end parser.invalid_option do |flag| STDERR.puts "ERROR: #{flag} is not a valid option." STDERR.puts parser exit(1) end end required_dependencies = File.open("videojs-dependencies.yml") do |file| YAML.parse(file).as_h end def update_versions_yaml(required_dependencies, minified, dep_name) File.open("assets/videojs/#{dep_name}/versions.yml", "w") do |io| YAML.build(io) do |builder| builder.mapping do # Versions builder.scalar "version" builder.scalar "#{required_dependencies[dep_name]["version"]}" builder.scalar "minified" builder.scalar minified end end end end # The first step is to check which dependencies we'll need to install. # If the version we have requested in `videojs-dependencies.yml` is the # same as what we've installed, we shouldn't do anything. Likewise, if it's # different or the requested dependency just isn't present, then it needs to be # installed. # Since we can't know when videojs-youtube-annotations is updated, we'll just always fetch # a new copy each time. dependencies_to_install = [] of String required_dependencies.keys.each do |dep| dep = dep.to_s path = "assets/videojs/#{dep}" # Check for missing dependencies if !Dir.exists?(path) Dir.mkdir(path) update_versions_yaml(required_dependencies, minified, dep) dependencies_to_install << dep else config = File.open("#{path}/versions.yml") do |file| YAML.parse(file).as_h end if config["version"].as_s != required_dependencies[dep]["version"].as_s || config["minified"].as_bool != minified `rm -rf #{path}/*` dependencies_to_install << dep update_versions_yaml(required_dependencies, minified, dep) end end end # Now we begin the fun part of installing the dependencies. # But first we'll setup a temp directory to store the plugins tmp_dir_path = "#{Dir.tempdir}/invidious-videojs-dep-install" Dir.mkdir(tmp_dir_path) if !Dir.exists? tmp_dir_path channel = Channel(String).new dependencies_to_install.each do |dep| spawn do dep_name = dep download_path = "#{tmp_dir_path}/#{dep}" dest_path = "assets/videojs/#{dep}" HTTP::Client.get("https://registry.npmjs.org/#{dep}/-/#{dep}-#{required_dependencies[dep]["version"]}.tgz") do |response| Dir.mkdir(download_path) data = response.body_io.gets_to_end File.write("#{download_path}/package.tgz", data) if Digest::SHA1.hexdigest(data) != required_dependencies[dep]["shasum"] raise Exception.new("Checksum for '#{dep}' failed") end end # Unless we install an external dependency, crystal provides no way of extracting a tarball. # Thus we'll go ahead and call a system command. args = Process.parse_arguments("-zxvf '#{download_path}/package.tgz' -C '#{download_path}'") process = Process.new("tar", args: args) process.wait.success? # => true # Would use File.rename in the following steps but for some reason it just doesn't work here. # Video.js itself is structured slightly differently dep = "video" if dep == "video.js" # This dep nests everything under an additional JS or CSS folder if dep == "silvermine-videojs-quality-selector" js_path = "js/" # It also stores their quality selector as `quality-selector.css` `mv #{download_path}/package/dist/css/quality-selector.css #{dest_path}/quality-selector.css` else js_path = "" end # Would use File.rename but for some reason it just doesn't work here. if minified && File.exists?("#{download_path}/package/dist/#{dep}.min.js") `mv #{download_path}/package/dist/#{js_path}#{dep}.min.js #{dest_path}/#{dep}.js` else `mv #{download_path}/package/dist/#{js_path}#{dep}.js #{dest_path}/#{dep}.js` end # Fetch CSS which isn't guaranteed to exist # # Also, video JS changes structure here once again... dep = "video-js" if dep == "video" # VideoJS marker uses a dot on the CSS files. dep = "videojs.markers" if dep == "videojs-markers" if File.exists?("#{download_path}/package/dist/#{dep}.css") if minified && File.exists?("#{tmp_dir_path}/#{dep}/package/dist/#{dep}.min.css") `mv #{download_path}/package/dist/#{dep}.min.css #{dest_path}/#{dep}.css` else `mv #{download_path}/package/dist/#{dep}.css #{dest_path}/#{dep}.css` end end channel.send(dep_name) end end puts "#{"Resolving".colorize(:green)} #{"VideoJS".colorize(:blue)} dependencies" dependencies_to_install.size.times do result = channel.receive puts "#{"Fetched".colorize(:green)} #{result.colorize(:blue)}" end # Cleanup `rm -rf #{tmp_dir_path}`