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nixpkgs/pkgs/development/ruby-modules/bundled-common/gen-bin-stubs.rb
2020-04-06 15:31:18 +02:00

51 lines
1.2 KiB
Ruby

require 'rbconfig'
require 'rubygems'
require 'rubygems/specification'
require 'fileutils'
# args/settings
out = ENV["out"]
ruby = ARGV[0]
gemfile = ARGV[1]
bundle_path = ARGV[2]
bundler_path = ARGV[3]
paths = ARGV[4].split
groups = ARGV[5].split
# generate binstubs
FileUtils.mkdir_p("#{out}/bin")
paths.each do |path|
next unless File.directory?("#{path}/nix-support/gem-meta")
name = File.read("#{path}/nix-support/gem-meta/name")
executables = File.read("#{path}/nix-support/gem-meta/executables")
.force_encoding('UTF-8').split
executables.each do |exe|
File.open("#{out}/bin/#{exe}", "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.
#
ENV["BUNDLE_GEMFILE"] = #{gemfile.dump}
ENV.delete 'BUNDLE_PATH'
ENV['BUNDLE_FROZEN'] = '1'
Gem.paths = { 'GEM_HOME' => #{bundle_path.dump} }
$LOAD_PATH.unshift #{File.join(bundler_path, "/lib").dump}
require 'bundler'
Bundler.setup(#{groups.map(&:dump).join(', ')})
load Gem.bin_path(#{name.dump}, #{exe.dump})
EOF
FileUtils.chmod("+x", "#{out}/bin/#{exe}")
end
end
end