Add --dump-compiledcode option to extract embedded compiledCode.bin from installer

src/cli/extract.cpp

@@ -890,6 +890,42 @@ void create_output_directory(const extract_options & o) {
 
 } // anonymous namespace
 
+void dump_compiledcode(std::istream & is, const loader::offsets & offsets, const setup::info & info, const extract_options & o) {
+	setup::version version;
+	is.seekg(offsets.header_offset);
+	version.load(is);
+
+	std::string filename = "compiledCode.bin";
+
+	if(!o.quiet) {
+		std::cout << "Dumping compiled setup code to \""
+		          << color::white << filename << color::reset << "\"\n";
+	} else if(!o.silent) {
+		std::cout << filename << '\n';
+	}
+
+	fs::path path = o.output_dir / filename;
+	util::ofstream ofs;
+	try {
+		ofs.open(path, std::ios_base::out | std::ios_base::trunc | std::ios_base::binary);
+		if(!ofs.is_open()) {
+			throw std::exception();
+		}
+	} catch(...) {
+		throw std::runtime_error("Could not open output file \"" + path.string() + '"');
+	}
+
+	try {
+		ofs.write(info.header.compiled_code.c_str(), static_cast<std::streamsize>(info.header.compiled_code.length()));
+	} catch(const std::exception & e) {
+		std::ostringstream oss;
+		oss << "Stream error while dumping compiled setup code!\n";
+		oss << " ├─ detected setup version: " << version << '\n';
+		oss << " └─ error reason: " << e.what();
+		throw format_error(oss.str());
+	}
+}
+
 void process_file(const fs::path & installer, const extract_options & o) {
 
 	bool is_directory;
@@ -992,6 +1028,12 @@ void process_file(const fs::path & installer, const extract_options & o) {
 		throw format_error(oss.str());
 	}
 
+	if(o.dump_compiledcode)  {
+		create_output_directory(o);
+		dump_compiledcode(ifs, offsets, info, o);
+		return;
+	}
+
 	if(o.gog_galaxy && (o.list || o.test || o.extract || o.list_languages)) {
 		gog::parse_galaxy_files(info, o.gog);
 	}

src/cli/extract.hpp

@@ -33,7 +33,9 @@
 #include <boost/cstdint.hpp>
 #include <boost/filesystem/path.hpp>
 
+#include "loader/offsets.hpp"
 #include "setup/filename.hpp"
+#include "setup/info.hpp"
 
 struct format_error : public std::runtime_error {
 	explicit format_error(const std::string & reason) : std::runtime_error(reason) { }
@@ -60,6 +62,7 @@ struct extract_options {
 	#ifdef DEBUG
 	bool dump_headers; //!< Dump setup headers
 	#endif
+	bool dump_compiledcode; //!< Dump compiled code
 	bool list; //!< List files
 	bool test; //!< Test files (but don't extract)
 	bool extract; //!< Extract files
@@ -119,4 +122,6 @@ struct extract_options {
 
 void process_file(const boost::filesystem::path & installer, const extract_options & o);
 
+void dump_compiledcode(std::istream & is, const loader::offsets & offsets, const setup::info & info, const extract_options & o);
+
 #endif // INNOEXTRACT_CLI_EXTRACT_HPP

src/cli/main.cpp

@@ -144,6 +144,7 @@ int main(int argc, char * argv[]) {
 		#ifdef DEBUG
 		("dump-headers", "Dump decompressed setup headers")
 		#endif
+		("dump-compiledcode", "Dump decompressed compiled code binary")
 	;
 
 	po::options_description modifiers("Modifiers");
@@ -442,6 +443,14 @@ int main(int argc, char * argv[]) {
 	}
 	#endif
 
+	o.dump_compiledcode = (options.count("dump-compiledcode") != 0);
+	if(o.dump_compiledcode) {
+		if(explicit_action || o.data_version) {
+			log_error << "Combining --dump-compiledcode with other options is not allowed";
+			return ExitUserError;
+		}
+	}
+
 	o.extract_unknown = (options.count("no-extract-unknown") == 0);
 
 	const std::vector<std::string> & files = options["setup-files"]