#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++
require 'thread'
class Gem::Ext::Builder
##
# The builder shells-out to run various commands after changing the
# directory. This means multiple installations cannot be allowed to build
# extensions in parallel as they may change each other's directories leading
# to broken extensions or failed installations.
CHDIR_MUTEX = Mutex.new # :nodoc:
def self.class_name
name =~ /Ext::(.*)Builder/
$1.downcase
end
def self.make(dest_path, results)
unless File.exist? 'Makefile' then
raise Gem::InstallError, "Makefile not found:\n\n#{results.join "\n"}"
end
# try to find make program from Ruby configure arguments first
RbConfig::CONFIG['configure_args'] =~ /with-make-prog\=(\w+)/
make_program = $1 || ENV['make']
unless make_program then
make_program = (/mswin/ =~ RUBY_PLATFORM) ? 'nmake' : 'make'
end
destdir = '"DESTDIR=%s"' % ENV['DESTDIR'] if RUBY_VERSION > '2.0'
['', 'install'].each do |target|
# Pass DESTDIR via command line to override what's in MAKEFLAGS
cmd = [
make_program,
destdir,
target
].join(' ').rstrip
run(cmd, results, "make #{target}".rstrip)
end
end
def self.redirector
'2>&1'
end
def self.run(command, results, command_name = nil)
results << command
results << `#{command} #{redirector}`
unless $?.success? then
raise Gem::InstallError, "#{command_name || class_name} failed:\n\n#{results.join "\n"}"
end
end
end
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