Sha256: 39a13926bb038b0616b056e242a329c11f232a9a430438ca48540a0bf2ff0162
Contents?: true
Size: 1.32 KB
Versions: 8
Compression:
Stored size: 1.32 KB
Contents
require "semantic_range"
namespace :shakapacker do
desc "Verifies if Yarn is installed"
task :check_yarn do
begin
which_command = Gem.win_platform? ? "where" : "which"
raise Errno::ENOENT if `#{which_command} yarn`.strip.empty?
yarn_version = `yarn --version`.strip
raise Errno::ENOENT if yarn_version.blank?
pkg_path = Pathname.new("#{__dir__}/../../../package.json").realpath
yarn_range = JSON.parse(pkg_path.read)["engines"]["yarn"]
is_valid = SemanticRange.satisfies?(yarn_version, yarn_range) rescue false
is_unsupported = SemanticRange.satisfies?(yarn_version, ">=4.0.0") rescue false
unless is_valid
$stderr.puts "Shakapacker requires Yarn \"#{yarn_range}\" and you are using #{yarn_version}"
if is_unsupported
$stderr.puts "This version of Shakapacker does not support Yarn #{yarn_version}. Please downgrade to a supported version of Yarn https://yarnpkg.com/lang/en/docs/install/"
else
$stderr.puts "Please upgrade Yarn https://yarnpkg.com/lang/en/docs/install/"
end
$stderr.puts "Exiting!"
exit!
end
rescue Errno::ENOENT
$stderr.puts "Yarn not installed. Please download and install Yarn from https://yarnpkg.com/lang/en/docs/install/"
$stderr.puts "Exiting!"
exit!
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems