ruby/tool/expand-config.rb

33 строки
843 B
Ruby
Executable File

#!./miniruby -s
config = File.read(conffile = $config)
config.sub!(/^(\s*)RUBY_VERSION\b.*(\sor\s*)$/, '\1true\2')
rbconfig = Module.new {module_eval(config, conffile)}::RbConfig
config = $expand ? rbconfig::CONFIG : rbconfig::MAKEFILE_CONFIG
config["RUBY_RELEASE_DATE"] ||=
File.read(File.expand_path("../../version.h", __FILE__))[/^\s*#\s*define\s+RUBY_RELEASE_DATE\s+"(.*)"/, 1]
while /\A(\w+)=(.*)/ =~ ARGV[0]
config[$1] = $2
ARGV.shift
end
re = /@(#{config.keys.map {|k| Regexp.quote(k)}.join('|')})@/
if $output
output = open($output, "wb", $mode &&= $mode.oct)
output.chmod($mode) if $mode
else
output = STDOUT
output.binmode
end
ARGF.each do |line|
line.gsub!(/@([a-z_]\w*)@/i) {
s = config.fetch($1, $expand ? $& : "")
s = s.gsub(/\$\((.+?)\)/, %Q[${\\1}]) unless $expand
s
}
output.puts line
end