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scanpypi: new utility

A utility for creating python package from the python package index.
It fetches packages info from http://pypi.python.org and generates
corresponding packages files.

Signed-off-by: Denis THULIN <denis.thulin@openwide.fr>
Tested-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
[Thomas: minor tweaks.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Denis THULIN 9 years ago
parent
commit
1008ac4406
2 changed files with 699 additions and 0 deletions
  1. 49 0
      docs/manual/adding-packages-python.txt
  2. 650 0
      support/scripts/scanpypi

+ 49 - 0
docs/manual/adding-packages-python.txt

@@ -161,6 +161,55 @@ possible to customize what is done in any particular step:
   default Python one. However, using this method should be restricted
   default Python one. However, using this method should be restricted
   to very specific cases. Do not use it in the general case.
   to very specific cases. Do not use it in the general case.
 
 
+[[scanpypi]]
+
+==== Generating a +python-package+ from a PyPI repository
+
+If the Python package for which you would like to create a Buildroot
+package is available on PyPI, you may want to use the +scanpypi+ tool
+located in +support/scripts+ to automate the process.
+
+You can find the list of existing PyPI packages
+https://pypi.python.org[here].
+
++scanpypi+ requires Python's +setuptools+ package to be installed on
+your host.
+
+When at the root of your buildroot directory just do :
+
+-----------------------
+./support/script/scanpypi foo bar -o package
+-----------------------
+
+This will generate packages +python-foo+ and +python-bar+ in the package
+folder if they exist on https://pypi.python.org.
+
+Find the +external python modules+ menu and insert your package inside.
+Keep in mind that the items inside a menu should be in alphabetical order.
+
+Please keep in mind that you'll most likely have to manually check the
+package for any mistakes as there are things that cannot be guessed by
+the generator (e.g.  dependencies on any of the python core modules
+such as BR2_PACKAGE_PYTHON_ZLIB).  Also, please take note that the
+license and license files are guessed and must be checked. You also
+need to manually add the package to the +package/Config.in+ file.
+
+If your Buildroot package is not in the official Buildroot tree but in
+a +BR2_EXTERNAL+ tree, use the -o flag as follows:
+
+-----------------------
+./support/script/scanpypi foo bar -o other_package_dir
+-----------------------
+
+This will generate packages +python-foo+ and +python-bar+ in the
++other_package_directory+ instead of +package+.
+
+Option +-h+ will list the available options:
+
+-----------------------
+./support/script/scanpypi -h
+-----------------------
+
 [[python-package-cffi-backend]]
 [[python-package-cffi-backend]]
 
 
 ==== +python-package+ CFFI backend
 ==== +python-package+ CFFI backend

+ 650 - 0
support/scripts/scanpypi

@@ -0,0 +1,650 @@
+#!/usr/bin/python2
+"""
+
+Utility for building Buildroot packages for existing PyPI packages
+
+Any package built by scanpypi should be manually checked for
+errors.
+"""
+from __future__ import print_function
+import argparse
+import json
+import urllib2
+import sys
+import os
+import shutil
+import StringIO
+import tarfile
+import zipfile
+import errno
+import hashlib
+import re
+import textwrap
+import tempfile
+import imp
+from functools import wraps
+
+def setup_decorator(func, method):
+    """
+    Decorator for distutils.core.setup and setuptools.setup.
+    Puts the arguments with which setup is called as a dict
+    Add key 'method' which should be either 'setuptools' or 'distutils'.
+
+    Keyword arguments:
+    func -- either setuptools.setup or distutils.core.setup
+    method -- either 'setuptools' or 'distutils'
+    """
+
+    @wraps(func)
+    def closure(*args, **kwargs):
+        # Any python packages calls its setup function to be installed.
+        # Argument 'name' of this setup function is the package's name
+        BuildrootPackage.setup_args[kwargs['name']] = kwargs
+        BuildrootPackage.setup_args[kwargs['name']]['method'] = method
+    return closure
+
+# monkey patch
+import setuptools
+setuptools.setup = setup_decorator(setuptools.setup, 'setuptools')
+import distutils
+distutils.core.setup = setup_decorator(setuptools.setup, 'distutils')
+
+def find_file_upper_case(filenames, path='./'):
+    """
+    List generator:
+    Recursively find files that matches one of the specified filenames.
+    Returns a relative path starting with path argument.
+
+    Keyword arguments:
+    filenames -- List of filenames to be found
+    path -- Path to the directory to search
+    """
+    for root, dirs, files in os.walk(path):
+        for file in files:
+            if file.upper() in filenames:
+                yield (os.path.join(root, file))
+
+
+def pkg_buildroot_name(pkg_name):
+    """
+    Returns the Buildroot package name for the PyPI package pkg_name.
+    Remove all non alphanumeric characters except -
+    Also lowers the name and adds 'python-' suffix
+
+    Keyword arguments:
+    pkg_name -- String to rename
+    """
+    name = re.sub('[^\w-]', '', pkg_name.lower())
+    prefix = 'python-'
+    pattern = re.compile('^(?!' + prefix + ')(.+?)$')
+    name = pattern.sub(r'python-\1', name)
+    return name
+
+class DownloadFailed(Exception):
+    pass
+
+class BuildrootPackage():
+    """This class's methods are not meant to be used individually please
+    use them in the correct order:
+
+    __init__
+
+    download_package
+
+    extract_package
+
+    load_module
+
+    get_requirements
+
+    create_package_mk
+
+    create_hash_file
+
+    create_config_in
+
+    """
+    setup_args = {}
+
+    def __init__(self, real_name, pkg_folder):
+        self.real_name = real_name
+        self.buildroot_name = pkg_buildroot_name(self.real_name)
+        self.pkg_dir = os.path.join(pkg_folder, self.buildroot_name)
+        self.mk_name = self.buildroot_name.upper().replace('-', '_')
+        self.as_string = None
+        self.md5_sum = None
+        self.metadata = None
+        self.metadata_name = None
+        self.metadata_url = None
+        self.pkg_req = None
+        self.setup_metadata = None
+        self.tmp_extract = None
+        self.used_url = None
+        self.filename = None
+        self.url = None
+        self.version = None
+
+    def fetch_package_info(self):
+        """
+        Fetch a package's metadata from the python package index
+        """
+        self.metadata_url = 'https://pypi.python.org/pypi/{pkg}/json'.format(
+            pkg=self.real_name)
+        try:
+            pkg_json = urllib2.urlopen(self.metadata_url).read().decode()
+        except urllib2.HTTPError as error:
+            print('ERROR:', error.getcode(), error.msg, file=sys.stderr)
+            print('ERROR: Could not find package {pkg}.\n'
+                  'Check syntax inside the python package index:\n'
+                  'https://pypi.python.org/pypi/ '
+                  .format(pkg=self.real_name))
+            raise
+        except urllib2.URLError:
+            print('ERROR: Could not find package {pkg}.\n'
+                  'Check syntax inside the python package index:\n'
+                  'https://pypi.python.org/pypi/ '
+                  .format(pkg=self.real_name))
+            raise
+        self.metadata = json.loads(pkg_json)
+        self.version = self.metadata['info']['version']
+        self.metadata_name = self.metadata['info']['name']
+
+    def download_package(self):
+        """
+        Download a package using metadata from pypi
+        """
+        try:
+            self.metadata['urls'][0]['filename']
+        except IndexError:
+            print(
+                'Non-conventional package, ',
+                'please check carefully after creation')
+            self.metadata['urls'] = [{
+                'packagetype': 'sdist',
+                'url': self.metadata['info']['download_url'],
+                'md5_digest': None}]
+            # In this case, we can't get the name of the downloaded file
+            # from the pypi api, so we need to find it, this should work
+            urlpath = urllib2.urlparse.urlparse(
+                self.metadata['info']['download_url']).path
+            # urlparse().path give something like
+            # /path/to/file-version.tar.gz
+            # We use basename to remove /path/to
+            self.metadata['urls'][0]['filename'] = os.path.basename(urlpath)
+        for download_url in self.metadata['urls']:
+            if 'bdist' in download_url['packagetype']:
+                continue
+            try:
+                print('Downloading package {pkg} from {url}...'.format(
+                      pkg=self.real_name, url=download_url['url']))
+                download = urllib2.urlopen(download_url['url'])
+            except urllib2.HTTPError as http_error:
+                download = http_error
+            else:
+                self.used_url = download_url
+                self.as_string = download.read()
+                if not download_url['md5_digest']:
+                    break
+                self.md5_sum = hashlib.md5(self.as_string).hexdigest()
+                if self.md5_sum == download_url['md5_digest']:
+                    break
+        else:
+            if download.__class__ == urllib2.HTTPError:
+                raise download
+            raise DownloadFailed('Failed to downloas package {pkg}'
+                                 .format(pkg=self.real_name))
+        self.filename = self.used_url['filename']
+        self.url = self.used_url['url']
+
+    def extract_package(self, tmp_path):
+        """
+        Extract the package contents into a directrory
+
+        Keyword arguments:
+        tmp_path -- directory where you want the package to be extracted
+        """
+        as_file = StringIO.StringIO(self.as_string)
+        if self.filename[-3:] == 'zip':
+            with zipfile.ZipFile(as_file) as as_zipfile:
+                tmp_pkg = os.path.join(tmp_path, self.buildroot_name)
+                try:
+                    os.makedirs(tmp_pkg)
+                except OSError as exception:
+                    if exception.errno != errno.EEXIST:
+                        print("ERROR: ", exception.message, file=sys.stderr)
+                        return None, None
+                    print('WARNING:', exception.message, file=sys.stderr)
+                    print('Removing {pkg}...'.format(pkg=tmp_pkg))
+                    shutil.rmtree(tmp_pkg)
+                    os.makedirs(tmp_pkg)
+                as_zipfile.extractall(tmp_pkg)
+        else:
+            with tarfile.open(fileobj=as_file) as as_tarfile:
+                tmp_pkg = os.path.join(tmp_path, self.buildroot_name)
+                try:
+                    os.makedirs(tmp_pkg)
+                except OSError as exception:
+                    if exception.errno != errno.EEXIST:
+                        print("ERROR: ", exception.message, file=sys.stderr)
+                        return None, None
+                    print('WARNING:', exception.message, file=sys.stderr)
+                    print('Removing {pkg}...'.format(pkg=tmp_pkg))
+                    shutil.rmtree(tmp_pkg)
+                    os.makedirs(tmp_pkg)
+                as_tarfile.extractall(tmp_pkg)
+
+        tmp_extract = '{folder}/{name}-{version}'
+        self.tmp_extract = tmp_extract.format(
+            folder=tmp_pkg,
+            name=self.metadata_name,
+            version=self.version)
+
+    def load_setup(self):
+        """
+        Loads the corresponding setup and store its metadata
+        """
+        current_dir = os.getcwd()
+        os.chdir(self.tmp_extract)
+        sys.path.append(self.tmp_extract)
+        s_file, s_path, s_desc = imp.find_module('setup', [self.tmp_extract])
+        setup = imp.load_module('setup', s_file, s_path, s_desc)
+        try:
+            self.setup_metadata = self.setup_args[self.metadata_name]
+        except KeyError:
+            # This means setup was not called which most likely mean that it is
+            # called through the if __name__ == '__main__' directive.
+            # In this case, we can only pray that it is called through a
+            # function called main() in setup.py.
+            setup.main([]) # Will raise AttributeError if not found
+            self.setup_metadata = self.setup_args[self.metadata_name]
+        # Here we must remove the module the hard way.
+        # We must do this because of a very sepcific case: if a package calls
+        # setup from the __main__ but does not come with a 'main()' function,
+        # for some reason setup.main([]) will successfully call the main
+        # function of a previous package...
+        sys.modules.pop('setup',None)
+        del setup
+        os.chdir(current_dir)
+        sys.path.remove(self.tmp_extract)
+
+    def get_requirements(self, pkg_folder):
+        """
+        Retrieve dependencies from the metadata found in the setup.py script of
+        a pypi package.
+
+        Keyword Arguments:
+        pkg_folder -- location of the already created packages
+        """
+        if 'install_requires' not in self.setup_metadata:
+            self.pkg_req = None
+            return set()
+        self.pkg_req = self.setup_metadata['install_requires']
+        self.pkg_req = [re.sub('([-.\w]+).*', r'\1', req)
+                        for req in self.pkg_req]
+        req_not_found = self.pkg_req
+        self.pkg_req = map(pkg_buildroot_name, self.pkg_req)
+        pkg_tuples = zip(req_not_found, self.pkg_req)
+        # pkg_tuples is a list of tuples that looks like
+        # ('werkzeug','python-werkzeug') because I need both when checking if
+        # dependencies already exist or are already in the download list
+        req_not_found = set(
+            pkg[0] for pkg in pkg_tuples
+            if not os.path.isdir(pkg[1])
+            )
+        return req_not_found
+
+    def __create_mk_header(self):
+        """
+        Create the header of the <package_name>.mk file
+        """
+        header = ['#' * 80 + '\n']
+        header.append('#\n')
+        header.append('# {name}\n'.format(name=self.buildroot_name))
+        header.append('#\n')
+        header.append('#' * 80 + '\n')
+        header.append('\n')
+        return header
+
+    def __create_mk_download_info(self):
+        """
+        Create the lines refering to the download information of the
+        <package_name>.mk file
+        """
+        lines = []
+        version_line = '{name}_VERSION = {version}\n'.format(
+            name=self.mk_name,
+            version=self.version)
+        lines.append(version_line)
+
+        targz = self.filename.replace(
+            self.version,
+            '$({name}_VERSION)'.format(name=self.mk_name))
+        targz_line = '{name}_SOURCE = {filename}\n'.format(
+            name=self.mk_name,
+            filename=targz)
+        lines.append(targz_line)
+
+        if self.filename not in self.url:
+            # Sometimes the filename is in the url, sometimes it's not
+            site_url = self.url
+        else:
+            site_url = self.url[:self.url.find(self.filename)]
+        site_line = '{name}_SITE = {url}'.format(name=self.mk_name,
+                                                 url=site_url)
+        site_line = site_line.rstrip('/') + '\n'
+        lines.append(site_line)
+        return lines
+
+    def __create_mk_setup(self):
+        """
+        Create the line refering to the setup method of the package of the
+        <package_name>.mk file
+
+        There are two things you can use to make an installer
+        for a python package: distutils or setuptools
+        distutils comes with python but does not support dependencies.
+        distutils is mostly still there for backward support.
+        setuptools is what smart people use,
+        but it is not shipped with python :(
+        """
+        lines = []
+        setup_type_line = '{name}_SETUP_TYPE = {method}\n'.format(
+            name=self.mk_name,
+            method=self.setup_metadata['method'])
+        lines.append(setup_type_line)
+        return lines
+
+    def __create_mk_license(self):
+        """
+        Create the lines referring to the package's license informations of the
+        <package_name>.mk file
+
+        The license is found using the metadata from pypi.
+        In the metadata, the license can be found either with standard names in
+        the classifiers part or with naming from the packager in the "License"
+        part.
+
+        From the classifiers, the license is "translated" according to
+        buildroot standards if need be (i.e. from Apache Software License to
+        Apache-2.0).
+
+        From the License part, we cannot guess what formatting the packager
+        used. Hence, it is likely to be incorrect. (i.e. Apache License 2.0
+        instead of Apache-2.0).
+
+        The license's files are found by searching the package for files named
+        license or license.txt (case insensitive).
+        If more than one license file is found, the user is asked to select
+        which ones he wants to use.
+        """
+        license_dict = {
+            'Apache Software License': 'Apache-2.0',
+            'BSD License': 'BSD',
+            'European Union Public Licence 1.0': 'EUPLv1.0',
+            'European Union Public Licence 1.1': 'EUPLv1.1',
+            "GNU General Public License": "GPL",
+            "GNU General Public License v2": "GPLv2",
+            "GNU General Public License v2 or later": "GPLv2+",
+            "GNU General Public License v3": "GPLv3",
+            "GNU General Public License v3 or later": "GPLv3+",
+            "GNU Lesser General Public License v2": "LGPLv2.1",
+            "GNU Lesser General Public License v2 or later": "LGPLv2.1+",
+            "GNU Lesser General Public License v3": "LGPLv3",
+            "GNU Lesser General Public License v3 or later": "LGPLv3+",
+            "GNU Library or Lesser General Public License": "LGPLv2",
+            "ISC License": "ISC",
+            "MIT License": "MIT",
+            "Mozilla Public License 1.0": "MPL-1.0",
+            "Mozilla Public License 1.1": "MPL-1.1",
+            "Mozilla Public License 2.0": "MPL-2.0",
+            "Zope Public License": "ZPL"
+            }
+        regexp = re.compile('^License :* *.* *:+ (.*)( \(.*\))?$')
+        classifiers_licenses = [regexp.sub(r"\1", lic)
+                                for lic in self.metadata['info']['classifiers']
+                                if regexp.match(lic)]
+        licenses = map(lambda x: license_dict[x] if x in license_dict else x,
+                       classifiers_licenses)
+        lines = []
+        if not len(licenses):
+            print('WARNING: License has been set to "{license}". It is most'
+                  ' likely wrong, please change it if need be'.format(
+                      license=', '.join(licenses)))
+            licenses = [self.metadata['info']['license']]
+        license_line = '{name}_LICENSE = {license}\n'.format(
+            name=self.mk_name,
+            license=', '.join(licenses))
+        lines.append(license_line)
+
+        filenames = ['LICENSE', 'LICENSE.TXT', 'COPYING', 'COPYING.TXT']
+        license_files = list(find_file_upper_case(filenames, self.tmp_extract))
+        license_files = [license.replace(self.tmp_extract, '')[1:]
+                         for license in license_files]
+        if len(license_files) > 0:
+            if len(license_files) > 1:
+                print('More than one file found for license:',
+                      ', '.join(license_files))
+            license_files = [filename
+                             for index, filename in enumerate(license_files)]
+            license_file_line = ('{name}_LICENSE_FILES ='
+                                 ' {files}\n'.format(
+                                     name=self.mk_name,
+                                     files=' '.join(license_files)))
+            lines.append(license_file_line)
+        else:
+            print('WARNING: No license file found,'
+                  ' please specify it manually afterwards')
+            license_file_line = '# No license file found\n'
+
+        return lines
+
+    def __create_mk_requirements(self):
+        """
+        Create the lines referring to the dependencies of the of the
+        <package_name>.mk file
+
+        Keyword Arguments:
+        pkg_name -- name of the package
+        pkg_req -- dependencies of the package
+        """
+        lines = []
+        dependencies_line = ('{name}_DEPENDENCIES ='
+                             ' {reqs}\n'.format(
+                                 name=self.mk_name,
+                                 reqs=' '.join(self.pkg_req)))
+        lines.append(dependencies_line)
+        return lines
+
+    def create_package_mk(self):
+        """
+        Create the lines corresponding to the <package_name>.mk file
+        """
+        pkg_mk = '{name}.mk'.format(name=self.buildroot_name)
+        path_to_mk = os.path.join(self.pkg_dir, pkg_mk)
+        print('Creating {file}...'.format(file=path_to_mk))
+        lines = self.__create_mk_header()
+        lines += self.__create_mk_download_info()
+        lines += self.__create_mk_setup()
+        lines += self.__create_mk_license()
+        if self.pkg_req:
+            lines += self.__create_mk_requirements()
+
+        lines.append('\n')
+        lines.append('$(eval $(python-package))')
+        lines.append('\n')
+        with open(path_to_mk, 'w') as mk_file:
+            mk_file.writelines(lines)
+
+    def create_hash_file(self):
+        """
+        Create the lines corresponding to the <package_name>.hash files
+        """
+        pkg_hash = '{name}.hash'.format(name=self.buildroot_name)
+        path_to_hash = os.path.join(self.pkg_dir, pkg_hash)
+        print('Creating {filename}...'.format(filename=path_to_hash))
+        lines = []
+        if self.used_url['md5_digest']:
+            md5_comment = '# md5 from {url}\n'.format(url=self.metadata_url)
+            lines.append(md5_comment)
+            hash_line = '{method}\t{digest}  {filename}\n'.format(
+                method='md5',
+                digest=self.used_url['md5_digest'],
+                filename=self.filename)
+            lines.append(hash_line)
+        sha256_comment = '# sha256 calculated by scanpypi\n'
+        lines.append(sha256_comment)
+        digest = hashlib.sha256(self.as_string).hexdigest()
+        hash_line = '{method}\t{digest}  {filename}\n'.format(
+            method='sha256',
+            digest=digest,
+            filename=self.filename)
+        lines.append(hash_line)
+
+        with open(path_to_hash, 'w') as hash_file:
+            hash_file.writelines(lines)
+
+    def create_config_in(self):
+        """
+        Creates the Config.in file of a package
+        """
+        path_to_config = os.path.join(self.pkg_dir, 'Config.in')
+        print('Creating {file}...'.format(file=path_to_config))
+        lines = []
+        config_line = 'config BR2_PACKAGE_{name}\n'.format(
+            name=self.mk_name)
+        lines.append(config_line)
+
+        bool_line = '\tbool "{name}"\n'.format(name=self.buildroot_name)
+        lines.append(bool_line)
+        if self.pkg_req:
+            for dep in self.pkg_req:
+                dep_line = '\tselect BR2_PACKAGE_{req}\n'.format(
+                    req=dep.upper().replace('-', '_'))
+                lines.append(dep_line)
+
+        lines.append('\thelp\n')
+
+        help_lines = textwrap.wrap(self.metadata['info']['summary'],
+                                   initial_indent='\t  ',
+                                   subsequent_indent='\t  ')
+        # \t + two spaces is 3 char long
+        help_lines.append('')
+        help_lines.append('\t  ' + self.metadata['info']['home_page'])
+        help_lines = map(lambda x: x + '\n', help_lines)
+        lines += help_lines
+
+        with open(path_to_config, 'w') as config_file:
+            config_file.writelines(lines)
+
+
+def main():
+    # Building the parser
+    parser = argparse.ArgumentParser(
+        description="Creates buildroot packages from the metadata of "
+                    "an existing PyPI packages and include it "
+                    "in menuconfig")
+    parser.add_argument("packages",
+                        help="list of packages to be created",
+                        nargs='+')
+    parser.add_argument("-o", "--output",
+                        help="""
+                        Output directory for packages.
+                        Default is ./package
+                        """,
+                        default='./package')
+
+    args = parser.parse_args()
+    packages = list(set(args.packages))
+
+    # tmp_path is where we'll extract the files later
+    tmp_prefix = 'scanpypi-'
+    pkg_folder = args.output
+    tmp_path = tempfile.mkdtemp(prefix=tmp_prefix)
+    try:
+        for real_pkg_name in packages:
+            package = BuildrootPackage(real_pkg_name, pkg_folder)
+            print('buildroot package name for {}:'.format(package.real_name),
+                  package.buildroot_name)
+            # First we download the package
+            # Most of the info we need can only be found inside the package
+            print('Package:', package.buildroot_name)
+            print('Fetching package', package.real_name)
+            try:
+                package.fetch_package_info()
+            except (urllib2.URLError, urllib2.HTTPError):
+                continue
+            if package.metadata_name.lower() == 'setuptools':
+                # setuptools imports itself, that does not work very well
+                # with the monkey path at the begining
+                print('Error: setuptools cannot be built using scanPyPI')
+                continue
+
+            try:
+                package.download_package()
+            except urllib2.HTTPError as error:
+                print('Error: {code} {reason}'.format(code=error.code,
+                                                      reason=error.reason))
+                print('Error downloading package :', package.buildroot_name)
+                print()
+                continue
+
+            # extract the tarball
+            try:
+                package.extract_package(tmp_path)
+            except (tarfile.ReadError, zipfile.BadZipfile):
+                print('Error extracting package {}'.format(package.real_name))
+                print()
+                continue
+
+            # Loading the package install info from the package
+            try:
+                package.load_setup()
+            except ImportError as err:
+                if 'buildutils' in err.message:
+                    print('This package needs buildutils')
+                else:
+                    raise
+                continue
+            except AttributeError:
+                print('Error: Could not install package {pkg}'.format(
+                    pkg=package.real_name))
+                continue
+
+            # Package requirement are an argument of the setup function
+            req_not_found = package.get_requirements(pkg_folder)
+            req_not_found = req_not_found.difference(packages)
+
+            packages += req_not_found
+            if req_not_found:
+                print('Added packages \'{pkgs}\' as dependencies of {pkg}'
+                      .format(pkgs=", ".join(req_not_found),
+                              pkg=package.buildroot_name))
+            print('Checking if package {name} already exists...'.format(
+                name=package.pkg_dir))
+            try:
+                os.makedirs(package.pkg_dir)
+            except OSError as exception:
+                if exception.errno != errno.EEXIST:
+                    print("ERROR: ", exception.message, file=sys.stderr)
+                    continue
+                print('Error: Package {name} already exists'
+                      .format(name=package.pkg_dir))
+                del_pkg = raw_input(
+                    'Do you want to delete existing package ? [y/N]')
+                if del_pkg.lower() == 'y':
+                    shutil.rmtree(package.pkg_dir)
+                    os.makedirs(package.pkg_dir)
+                else:
+                    continue
+            package.create_package_mk()
+
+            package.create_hash_file()
+
+            package.create_config_in()
+            print()
+            # printing an empty line for visual confort
+    finally:
+        shutil.rmtree(tmp_path)
+
+if __name__ == "__main__":
+    main()