Files
RubyMotion/bin/android/gen_bridge_metadata
2014-05-15 20:04:17 +02:00

81 lines
2.3 KiB
Ruby
Executable File

#!/usr/bin/ruby
# encoding: utf-8
require 'fileutils'
if ARGV.size != 2
$stderr.puts "Usage: #{__FILE__} <jar-file> <output-file>"
exit 1
end
jar_path = File.expand_path(ARGV[0])
bs_path = File.expand_path(ARGV[1])
tmp_path = File.join(ENV['TMPDIR'], '__android_bridgesupport__', File.basename(jar_path))
FileUtils.rm_rf tmp_path
FileUtils.mkdir_p tmp_path
Dir.chdir(tmp_path) do
# Unzip the .jar archive.
exit 1 unless system "/usr/bin/unzip -q \"#{jar_path}\""
# Decompile classes.
classes = Dir.glob("**/*.class").map { |x| x.gsub('/', '.').gsub('$', '.').sub(/\.class$/, '') }
javap_tmp_path = File.join(File.dirname(tmp_path), 'classes.txt')
system "/usr/bin/javap -s #{classes.join(' ')} > \"#{javap_tmp_path}\""
# Create the BridgeSupport text.
bs_data = ''
bs_data << <<EOS
<?xml version='1.0'?>
<signatures version='1.0'>
EOS
txt = File.read(javap_tmp_path)
res = txt.scan(/(class)\s+([^\s]+)\s+extends\s+[^{]+\s*\{([^}]+)\}/)
res += txt.scan(/(class)\s([^\s{]+)\s*\{([^}]+)\}/) # Also grab classes without superclasses (ex. java.lang.Object)
res += txt.scan(/(interface)\s([^\s{]+)\s*\{([^}]+)\}/) # Also grab interfaces
res.each do |type, elem, body_txt|
elem_path = elem.gsub(/\./, '/')
bs_data << <<EOS
<#{type} name=\"#{elem_path}\">
EOS
body_txt.strip.split(/\n/).each_cons(2) do |elem_line, signature_line|
signature_line = signature_line.strip
md = signature_line.match(/^Signature:\s+(.+)$/)
next unless md
signature = md[1]
elem_line = elem_line.strip
if md = elem_line.match(/\s([^(\s]+)\(/)
# A method.
method = md[1]
if method == elem
# An initializer.
method = '&lt;init&gt;'
end
class_method = elem_line.include?('static')
bs_data << <<EOS
<method name=\"#{method}\" type=\"#{signature}\"#{class_method ? ' class_method="true"' : ''}/>
EOS
elsif md = elem_line.match(/\s([^;\s]+);$/)
=begin
# A constant.
constant = md[1]
bs_data << <<EOS
<const name=\"#{constant}\" type=\"#{signature}\"/>
EOS
=end
end
end
bs_data << <<EOS
</#{type}>
EOS
end
bs_data << <<EOS
</signatures>
EOS
# Write the BridgeSupport data down.
File.open(bs_path, 'w') { |io| io.write(bs_data) }
end