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#!/usr/bin/env ruby
#
# Extensions to Bundler library which allow using it in importers.
#
# Copyright (C) 2014 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
require 'bundler'
class << Bundler
def default_gemfile
# This is a hack to make things not crash when there's no Gemfile
Pathname.new('.')
end
end
module Importer
module BundlerExtensions
def create_bundler_definition_for_gemspec(gem_name)
# Using the real Gemfile doesn't get great results, because people can put
# lots of stuff in there that is handy for developers to have but
# irrelevant if you just want to produce a .gem. Also, there is only one
# Gemfile per repo, but a repo may include multiple .gemspecs that we want
# to process individually. Also, some projects don't use Bundler and may
# not have a Gemfile at all.
#
# Instead of reading the real Gemfile, invent one that simply includes the
# chosen .gemspec. If present, the Gemfile.lock will be honoured.
fake_gemfile = Bundler::Dsl.new
fake_gemfile.source('https://rubygems.org')
begin
fake_gemfile.gemspec({:name => gem_name})
rescue Bundler::InvalidOption
error "Did not find #{gem_name}.gemspec in current directory."
exit 1
end
fake_gemfile.to_definition('Gemfile.lock', true)
end
def get_spec_for_gem(specs, gem_name)
found = specs[gem_name].select {|s| Gem::Platform.match(s.platform)}
if found.empty?
raise "No Gemspecs found matching '#{gem_name}'"
elsif found.length != 1
raise "Unsure which Gem to use for #{gem_name}, got #{found}"
end
found[0]
end
def spec_is_from_current_source_tree(spec, source_dir)
Dir.chdir(source_dir) do
spec.source.instance_of? Bundler::Source::Path and
File.identical?(spec.source.path, '.')
end
end
def validate_spec(spec, source_dir_name, expected_version)
if not spec_is_from_current_source_tree(spec, source_dir_name)
error "Specified gem '#{spec.name}' doesn't live in the source in " \
"'#{source_dir_name}'"
log.debug "SPEC: #{spec.inspect} #{spec.source}"
exit 1
end
if expected_version != nil && spec.version != expected_version
# This check is brought to you by Coderay, which changes its version
# number based on an environment variable. Other Gems may do this too.
error "Source in #{source_dir_name} produces #{spec.full_name}, but " \
"the expected version was #{expected_version}."
exit 1
end
end
end
end
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