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How to use _build_egg_using_setup_py method in autotest

Best Python code snippet using autotest_python
external_packages.py
Source:external_packages.py
...142            raise Error('Missing OS requirements for %s.  (see above)' %143                        self.name)144    def _build_and_install_current_dir_setup_py(self, install_dir):145        """For use as a _build_and_install_current_dir implementation."""146        egg_path = self._build_egg_using_setup_py(setup_py='setup.py')147        if not egg_path:148            return False149        return self._install_from_egg(install_dir, egg_path)150    def _build_and_install_current_dir_setupegg_py(self, install_dir):151        """For use as a _build_and_install_current_dir implementation."""152        egg_path = self._build_egg_using_setup_py(setup_py='setupegg.py')153        if not egg_path:154            return False155        return self._install_from_egg(install_dir, egg_path)156    def _build_and_install_current_dir_noegg(self, install_dir):157        if not self._build_using_setup_py():158            return False159        return self._install_using_setup_py_and_rsync(install_dir)160    def _build_and_install_from_package(self, install_dir):161        """162        This method may be used as a _build_and_install() implementation163        for subclasses if they implement _build_and_install_current_dir().164        Extracts the .tar.gz file, chdirs into the extracted directory165        (which is assumed to match the tar filename) and calls166        _build_and_isntall_current_dir from there.167        Afterwards the build (regardless of failure) extracted .tar.gz168        directory is cleaned up.169        :return: True on success, False otherwise.170        :raise OSError If the expected extraction directory does not exist.171        """172        self._extract_compressed_package()173        if self.verified_package.endswith('.tar.gz'):174            extension = '.tar.gz'175        elif self.verified_package.endswith('.tar.bz2'):176            extension = '.tar.bz2'177        elif self.verified_package.endswith('.zip'):178            extension = '.zip'179        else:180            raise Error('Unexpected package file extension on %s' %181                        self.verified_package)182        os.chdir(os.path.dirname(self.verified_package))183        os.chdir(self.local_filename[:-len(extension)])184        extracted_dir = os.getcwd()185        try:186            return self._build_and_install_current_dir(install_dir)187        finally:188            os.chdir(os.path.join(extracted_dir, '..'))189            shutil.rmtree(extracted_dir)190    def _extract_compressed_package(self):191        """Extract the fetched compressed .tar or .zip within its directory."""192        if not self.verified_package:193            raise Error('Package must have been fetched first.')194        os.chdir(os.path.dirname(self.verified_package))195        if self.verified_package.endswith('gz'):196            status = system("tar -xzf '%s'" % self.verified_package)197        elif self.verified_package.endswith('bz2'):198            status = system("tar -xjf '%s'" % self.verified_package)199        elif self.verified_package.endswith('zip'):200            status = system("unzip '%s'" % self.verified_package)201        else:202            raise Error('Unknown compression suffix on %s.' %203                        self.verified_package)204        if status:205            raise Error('tar failed with %s' % (status,))206    def _build_using_setup_py(self, setup_py='setup.py'):207        """208        Assuming the cwd is the extracted python package, execute a simple209        python setup.py build.210        :param setup_py - The name of the setup.py file to execute.211        :return: True on success, False otherwise.212        """213        if not os.path.exists(setup_py):214            raise Error('%s does not exist in %s' % (setup_py, os.getcwd()))215        status = system("'%s' %s build" % (sys.executable, setup_py))216        if status:217            logging.error('%s build failed.' % self.name)218            return False219        return True220    def _build_egg_using_setup_py(self, setup_py='setup.py'):221        """222        Assuming the cwd is the extracted python package, execute a simple223        python setup.py bdist_egg.224        :param setup_py - The name of the setup.py file to execute.225        :return: The relative path to the resulting egg file or '' on failure.226        """227        if not os.path.exists(setup_py):228            raise Error('%s does not exist in %s' % (setup_py, os.getcwd()))229        egg_subdir = 'dist'230        if os.path.isdir(egg_subdir):231            shutil.rmtree(egg_subdir)232        status = system("'%s' %s bdist_egg" % (sys.executable, setup_py))233        if status:234            logging.error('bdist_egg of setuptools failed.')235            return ''236        # I've never seen a bdist_egg lay multiple .egg files.237        for filename in os.listdir(egg_subdir):238            if filename.endswith('.egg'):239                return os.path.join(egg_subdir, filename)240    def _install_from_egg(self, install_dir, egg_path):241        """242        Install a module from an egg file by unzipping the necessary parts243        into install_dir.244        :param install_dir - The installation directory.245        :param egg_path - The pathname of the egg file.246        """247        status = system("unzip -q -o -d '%s' '%s'" % (install_dir, egg_path))248        if status:249            logging.error('unzip of %s failed', egg_path)250            return False251        egg_info = os.path.join(install_dir, 'EGG-INFO')252        if os.path.isdir(egg_info):253            shutil.rmtree(egg_info)254        return True255    def _get_temp_dir(self):256        return tempfile.mkdtemp(dir='/var/tmp')257    def _site_packages_path(self, temp_dir):258        # This makes assumptions about what python setup.py install259        # does when given a prefix.  Is this always correct?260        python_xy = 'python%s' % sys.version[:3]261        return os.path.join(temp_dir, 'lib', python_xy, 'site-packages')262    def _install_using_setup_py_and_rsync(self, install_dir,263                                          setup_py='setup.py',264                                          temp_dir=None):265        """266        Assuming the cwd is the extracted python package, execute a simple:267          python setup.py install --prefix=BLA268        BLA will be a temporary directory that everything installed will269        be picked out of and rsynced to the appropriate place under270        install_dir afterwards.271        Afterwards, it deconstructs the extra lib/pythonX.Y/site-packages/272        directory tree that setuptools created and moves all installed273        site-packages directly up into install_dir itself.274        :param install_dir the directory for the install to happen under.275        :param setup_py - The name of the setup.py file to execute.276        :return: True on success, False otherwise.277        """278        if not os.path.exists(setup_py):279            raise Error('%s does not exist in %s' % (setup_py, os.getcwd()))280        if temp_dir is None:281            temp_dir = self._get_temp_dir()282        try:283            status = system("'%s' %s install --no-compile --prefix='%s'"284                            % (sys.executable, setup_py, temp_dir))285            if status:286                logging.error('%s install failed.' % self.name)287                return False288            if os.path.isdir(os.path.join(temp_dir, 'lib')):289                # NOTE: This ignores anything outside of the lib/ dir that290                # was installed.291                temp_site_dir = self._site_packages_path(temp_dir)292            else:293                temp_site_dir = temp_dir294            status = system("rsync -r '%s/' '%s/'" %295                            (temp_site_dir, install_dir))296            if status:297                logging.error('%s rsync to install_dir failed.' % self.name)298                return False299            return True300        finally:301            shutil.rmtree(temp_dir)302    def _build_using_make(self, install_dir):303        """Build the current package using configure/make.304        :return: True on success, False otherwise.305        """306        install_prefix = os.path.join(install_dir, 'usr', 'local')307        status = system('./configure --prefix=%s' % install_prefix)308        if status:309            logging.error('./configure failed for %s', self.name)310            return False311        status = system('make')312        if status:313            logging.error('make failed for %s', self.name)314            return False315        status = system('make check')316        if status:317            logging.error('make check failed for %s', self.name)318            return False319        return True320    def _install_using_make(self):321        """Install the current package using make install.322        Assumes the install path was set up while running ./configure (in323        _build_using_make()).324        :return: True on success, False otherwise.325        """326        status = system('make install')327        return status == 0328    def fetch(self, dest_dir):329        """330        Fetch the package from one its URLs and save it in dest_dir.331        If the the package already exists in dest_dir and the checksum332        matches this code will not fetch it again.333        Sets the 'verified_package' attribute with the destination pathname.334        :param dest_dir - The destination directory to save the local file.335            If it does not exist it will be created.336        :return: A boolean indicating if we the package is now in dest_dir.337        :raise FetchError - When something unexpected happens.338        """339        if not os.path.exists(dest_dir):340            os.makedirs(dest_dir)341        local_path = os.path.join(dest_dir, self.local_filename)342        # If the package exists, verify its checksum and be happy if it is good.343        if os.path.exists(local_path):344            actual_hex_sum = _checksum_file(local_path)345            if self.hex_sum == actual_hex_sum:346                logging.info('Good checksum for existing %s package.',347                             self.name)348                self.verified_package = local_path349                return True350            logging.warning('Bad checksum for existing %s package.  '351                            'Re-downloading', self.name)352            os.rename(local_path, local_path + '.wrong-checksum')353        # Download the package from one of its urls, rejecting any if the354        # checksum does not match.355        for url in self.urls:356            logging.info('Fetching %s', url)357            try:358                url_file = urllib2.urlopen(url)359            except (urllib2.URLError, EnvironmentError):360                logging.warning('Could not fetch %s package from %s.',361                                self.name, url)362                continue363            data_length = int(url_file.info().get('Content-Length',364                                                  _MAX_PACKAGE_SIZE))365            if data_length <= 0 or data_length > _MAX_PACKAGE_SIZE:366                raise FetchError('%s from %s fails Content-Length %d '367                                 'sanity check.' % (self.name, url,368                                                    data_length))369            checksum = utils.hash('sha1')370            total_read = 0371            output = open(local_path, 'wb')372            try:373                while total_read < data_length:374                    data = url_file.read(_READ_SIZE)375                    if not data:376                        break377                    output.write(data)378                    checksum.update(data)379                    total_read += len(data)380            finally:381                output.close()382            if self.hex_sum != checksum.hexdigest():383                logging.warning('Bad checksum for %s fetched from %s.',384                                self.name, url)385                logging.warning('Got %s', checksum.hexdigest())386                logging.warning('Expected %s', self.hex_sum)387                os.unlink(local_path)388                continue389            logging.info('Good checksum.')390            self.verified_package = local_path391            return True392        else:393            return False394# NOTE: This class definition must come -before- all other ExternalPackage395# classes that need to use this version of setuptools so that is is inserted396# into the ExternalPackage.subclasses list before them.397class SetuptoolsPackage(ExternalPackage):398    # For all known setuptools releases a string compare works for the399    # version string.  Hopefully they never release a 0.10.  (Their own400    # version comparison code would break if they did.)401    # Any system with setuptools > 0.6 is fine. If none installed, then402    # try to install the latest found on the upstream.403    minimum_version = '0.6'404    version = '0.6c11'405    urls = ('http://pypi.python.org/packages/source/s/setuptools/'406            'setuptools-%s.tar.gz' % (version,),)407    local_filename = 'setuptools-%s.tar.gz' % version408    hex_sum = '8d1ad6384d358c547c50c60f1bfdb3362c6c4a7d'409    SUDO_SLEEP_DELAY = 15410    def _build_and_install(self, install_dir):411        """Install setuptools on the system."""412        logging.info('NOTE: setuptools install does not use install_dir.')413        return self._build_and_install_from_package(install_dir)414    def _build_and_install_current_dir(self, install_dir):415        egg_path = self._build_egg_using_setup_py()416        if not egg_path:417            return False418        print '!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n'419        print 'About to run sudo to install setuptools', self.version420        print 'on your system for use by', sys.executable, '\n'421        print '!! ^C within', self.SUDO_SLEEP_DELAY, 'seconds to abort.\n'422        time.sleep(self.SUDO_SLEEP_DELAY)423        # Copy the egg to the local filesystem /var/tmp so that root can424        # access it properly (avoid NFS squashroot issues).425        temp_dir = self._get_temp_dir()426        try:427            shutil.copy(egg_path, temp_dir)428            egg_name = os.path.split(egg_path)[1]429            temp_egg = os.path.join(temp_dir, egg_name)...
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