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scanner.rb
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scanner.rb
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# frozen_string_literal: true
module DockerfileRails
module Scanner
def scan_rails_app
### ruby gems ###
@gemfile = []
@git = false
if File.exist? "Gemfile.lock"
parser = Bundler::LockfileParser.new(Bundler.read_file("Gemfile.lock"))
@gemfile += parser.specs.map { |spec, version| spec.name }
@git ||= ENV["RAILS_ENV"] != "test" && parser.specs.any? do |spec|
spec.source.instance_of? Bundler::Source::Git
end
# determine if the application is affected by the net-pop bug
# https://github.com/ruby/ruby/pull/11006#issuecomment-2176562332
if RUBY_VERSION == "3.3.3" && @gemfile.include?("net-pop")
@netpopbug = parser.specs.find { |spec| spec.name == "net-pop" }.dependencies.empty?
end
end
if File.exist? "Gemfile"
begin
gemfile_definition = Bundler::Definition.build("Gemfile", nil, [])
@gemfile += gemfile_definition.dependencies.map(&:name)
unless ENV["RAILS_ENV"] == "test"
@git = !gemfile_definition.spec_git_paths.empty?
end
rescue => error
STDERR.puts error.message
end
end
@anycable = @gemfile.include? "anycable-rails"
@vips = @gemfile.include? "ruby-vips"
@bootstrap = @gemfile.include? "bootstrap"
@puppeteer = @gemfile.include? "puppeteer"
@bootsnap = @gemfile.include? "bootsnap"
### database ###
database = YAML.load_file("config/database.yml", aliases: true).
dig("production", "adapter") rescue nil
if database == "sqlite3"
@sqlite3 = true
elsif database == "postgresql"
@postgresql = true
elsif (database == "mysql") || (database == "mysql2") || (database == "trilogy")
@mysql = true
elsif database == "sqlserver"
@sqlserver = true
end
@sqlite3 = true if @gemfile.include? "sqlite3"
@postgresql = true if @gemfile.include? "pg"
@mysql = true if @gemfile.include?("mysql2") || using_trilogy?
@sqlserver = true if @gemfile.include?("activerecord-sqlserver-adapter")
### node modules ###
@package_json = []
if File.exist? "package.json"
@package_json += JSON.load_file("package.json")["dependencies"].keys rescue []
end
@puppeteer ||= @package_json.include? "puppeteer"
### cable/redis ###
@cable = ! Dir["app/channels/*.rb"].empty?
if @cable
@redis_cable = true
if (YAML.load_file("config/cable.yml").dig("production", "adapter") rescue "").include? "any_cable"
@anycable = true
end
end
if (IO.read("config/environments/production.rb") =~ /redis/i rescue false)
@redis_cache = true
end
@redis = @redis_cable || @redis_cache
end
def using_trilogy?
@gemfile.include?("trilogy") || @gemfile.include?("activerecord-trilogy-adapter")
end
### patches ###
if RUBY_VERSION == "3.3.3"
Bundler::LockfileParser.new(Bundler.read_file("Gemfile.lock"))
end
end
end