def write_script(self, script_name, contents, mode="t", *ignored):
        """Write an executable file to the scripts directory"""
        from setuptools.command.easy_install import chmod, current_umask

        log.info("Installing %s script to %s", script_name, self.install_dir)
        target = os.path.join(self.install_dir, script_name)
        self.outfiles.append(target)

        mask = current_umask()
        if not self.dry_run:
            ensure_directory(target)
            f = open(target, "w" + mode)
            f.write(contents)
            f.close()
            chmod(target, 0o777 - mask)
Write an executable file to the scripts directory
product/gradle-plugin/src/main/python/setuptools/command/install_scripts.py