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