Class: Brown::ACLLoader

Inherits:
Object
  • Object
show all
Extended by:
Logger
Defined in:
lib/brown/acl_loader.rb

Class Method Summary collapse

Methods included from Logger

backtrace, log_level, logger

Class Method Details

.load_all(*dirs) ⇒ Object 



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# File 'lib/brown/acl_loader.rb', line 11

def self.load_all(*dirs)
	dirs.flatten!
	pfiles = dirs.each_with_object([]) do |dir, list|
		list << Dir["#{dir}/*.proto"]
	end.flatten

	load_proto_files(pfiles, dirs)
end

.load_proto_files(pfiles, dirs) ⇒ Object 



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# File 'lib/brown/acl_loader.rb', line 20

def self.load_proto_files(pfiles, dirs)
	orig_load_path = $LOAD_PATH

	Dir.mktmpdir do |tmpdir|
		dirs = pfiles.map { |f| File.dirname(f) }.uniq + [tmpdir]
		dirs.each { |d| $LOAD_PATH.unshift(d) }

		compiles = []

		pfiles.each do |f|
			pbrbfile = f.gsub(/\.proto$/, ".pb.rb")
			unless File.exists?(pbrbfile) and File.stat(pfile).mtime <= File.stat(pbrbfile).mtime
				compiles << f
			end
		end

		includes = dirs.map { |d| "-I '#{d}'" }.join(" ")

		unless compiles.empty?
			cmd = "protoc --ruby_out='#{tmpdir}' #{includes} #{compiles.map { |f| "'#{f}'" }.join(' ')} 2>&1"
			output = nil

			IO.popen(cmd) { |fd| output = fd.read }

			if $?.exitstatus != 0
				logger.fatal { "protoc failed: #{output}" }
				raise RuntimeError, output
			end
		end

		pfiles.each do |f|
			require "#{File.basename(f, '.proto')}.pb"
		end
	end
ensure
	$LOAD_PATH.replace(orig_load_path)
end