181 lines
4 KiB
Ruby
181 lines
4 KiB
Ruby
require 'rbconfig'
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require 'bundler/vendored_thor'
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require 'bundler'
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require 'rubygems/command'
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require 'fileutils'
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require 'pathname'
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require 'tmpdir'
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require 'shellwords'
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if defined?(Encoding.default_internal)
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Encoding.default_internal = Encoding::UTF_8
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Encoding.default_external = Encoding::UTF_8
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end
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# Options:
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#
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# type - installation type, either "git" or "path"
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# name - the gem name
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# version - gem version
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# build-flags - build arguments
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#
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# Git-only options:
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#
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# uri - git repo uri
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# repo - path to local checkout
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# ref - the commit hash
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ruby = File.join(ENV["ruby"], "bin", RbConfig::CONFIG['ruby_install_name'])
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out = ENV["out"]
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bin_dir = File.join(ENV["out"], "bin")
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type = ARGV[0]
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name = ARGV[1]
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version = ARGV[2]
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build_flags = Shellwords.split(ARGV[3])
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if type == "git"
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uri = ARGV[4]
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REPO = ARGV[5]
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ref = ARGV[6]
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end
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# options to pass to bundler
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options = {
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"name" => name,
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"version" => version,
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}
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if type == "path"
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options.merge!({
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"path" => Dir.pwd,
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})
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elsif type == "git"
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options.merge!({
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"uri" => uri,
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"ref" => ref,
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})
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end
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# Monkey-patch Bundler to use our local checkout.
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# I wish we didn't have to do this, but bundler does not expose an API to do
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# these kinds of things.
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Bundler.module_eval do
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def self.requires_sudo?
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false
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end
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def self.root
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# we don't have a Gemfile, so it doesn't make sense to try to make paths
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# relative to the (non existent) parent directory thereof, so we give a
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# nonsense path here.
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Pathname.new("/no-root-path")
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end
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def self.bundle_path
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Pathname.new(ENV["GEM_HOME"])
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end
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def self.locked_gems
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nil
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end
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end
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if type == "git"
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Bundler::Source::Git.class_eval do
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def allow_git_ops?
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true
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end
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end
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Bundler::Source::Git::GitProxy.class_eval do
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def checkout
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unless path.exist?
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FileUtils.mkdir_p(path.dirname)
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FileUtils.cp_r(File.join(REPO, ".git"), path)
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system("chmod -R +w #{path}")
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end
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end
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def copy_to(destination, submodules=false)
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unless File.exist?(destination.join(".git"))
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FileUtils.mkdir_p(destination.dirname)
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FileUtils.cp_r(REPO, destination)
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system("chmod -R +w #{destination}")
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end
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end
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end
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end
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# UI
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verbose = false
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no_color = false
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Bundler.ui = Bundler::UI::Shell.new({"no-color" => no_color})
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Bundler.ui.level = "debug" if verbose
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# Install
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if type == "git"
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source = Bundler::Source::Git.new(options)
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else
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source = Bundler::Source::Path.new(options)
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end
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spec = source.specs.search_all(name).first
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source.install(spec, :build_args => build_flags)
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msg = spec.post_install_message
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if msg
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Bundler.ui.confirm "Post-install message from #{name}:"
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Bundler.ui.info msg
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end
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# Write out the binstubs
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if spec.executables.any?
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FileUtils.mkdir_p(bin_dir)
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spec.executables.each do |exe|
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wrapper = File.join(bin_dir, exe)
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File.open(wrapper, "w") do |f|
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f.write(<<-EOF)
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#!#{ruby}
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#
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# This file was generated by Nix.
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#
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# The application '#{exe}' is installed as part of a gem, and
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# this file is here to facilitate running it.
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#
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require 'rubygems'
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require 'bundler/setup'
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load Gem.bin_path(#{spec.name.inspect}, #{exe.inspect})
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EOF
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end
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FileUtils.chmod("+x", wrapper)
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end
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end
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# Write out metadata
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meta = "#{out}/nix-support/gem-meta"
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FileUtils.mkdir_p(meta)
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FileUtils.ln_s(spec.loaded_from.to_s, "#{meta}/spec")
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File.open("#{meta}/name", "w") do |f|
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f.write spec.name
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end
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if type == "git"
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File.open("#{meta}/install-path", "w") do |f|
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f.write source.install_path.to_s
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end
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end
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File.open("#{meta}/require-paths", "w") do |f|
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f.write spec.require_paths.join(" ")
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end
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File.open("#{meta}/executables", "w") do |f|
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f.write spec.executables.join(" ")
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end
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# make the lib available during bundler/git installs
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if type == "git"
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File.open("#{out}/nix-support/setup-hook", "a") do |f|
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spec.require_paths.each do |dir|
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f.puts("addToSearchPath RUBYLIB #{source.install_path}/#{dir}")
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end
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end
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end
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