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require "fileutils"
require "tmpdir"
require "shellwords"
namespace :compiler do
RUBIES = {
"2.3.0" => "https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.0.tar.gz",
"2.2.4" => "https://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.4.tar.gz",
"2.1.8" => "https://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.8.tar.gz",
}
desc "Install a ruby"
task :install, :version
task install: :environment do |t, args|
url = RUBIES[args[:version]] or raise(ArgumentError, "unknown ruby")
name = url.split("/").last
destdir = Rails.root.join("playground/ruby/#{args[:version]}")
raise ArgumentError, "already installed?" if Dir.exist?(destdir.to_s)
prefix = "/opt"
Dir.mktmpdir { |dir|
FileUtils.chdir(dir) {
system("curl -O #{Shellwords.escape(url)}") or raise("failed to download")
system("tar xf #{Shellwords.escape(name)}") or raise("failed to extract")
FileUtils.chdir(name.split(".tar.gz").first) {
system("./configure --prefix=#{prefix} --enable-shared --disable-install-doc") or raise("failed to configure")
system("make -j6") or raise("failed to make")
system("make install DESTDIR=#{destdir.to_s}") or raise("failed to install")
Compiler.create!(language: "ruby", version: args[:version], command_line: "#{prefix}/bin/ruby PROGRAM")
}
}
}
end
end
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