versions.configuration.Conf.extract_project_entry() - Code Metrics - Inspection of "v1.5.4-rc1" - dupgit/versions - Measure and Improve Code Quality continuously with Scrutinizer

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Conf.extract_project_entry() A

↳ Parent: versions.configuration

Complexity

Conditions

Size

Total Lines	6
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	2
nop	2
dl	0
loc	6
rs	10
c	0
b	0
f	0

#!/usr/bin/env python
# -*- coding: utf8 -*-
#
#  configuration.py : configuration related class and fonctions for
#                     versions.py modules.
#
#  (C) Copyright 2016 - 2018 Olivier Delhomme
#  e-mail : [email protected]
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 3, or (at your option)
#  any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software Foundation,
#  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#

import codecs
import argparse
import os
import errno
import yaml

__author__ = "Olivier Delhomme <[email protected]>"
__date__ = "23.04.2019"
__version__ = "1.5.4-rc1"


def make_directories(path):
    """
    Makes all directories in path if possible. It is not an error if
    path already exists.
    """

    try:
        os.makedirs(path)

    except OSError as exc:

        if exc.errno != errno.EEXIST or os.path.isdir(path) is not True:
            raise

# End of make_directories() function

class Conf:
    """
    Class to store configuration of the program and check version.
    """

    config_dir = ''
    local_dir = ''
    config_filename = ''
    description = {}
    options = None

    def __init__(self):
        """
        Inits the class
        """
        self.config_dir = os.path.expanduser("~/.config/versions")
        self.local_dir = os.path.expanduser("~/.local/versions")
        self.config_filename = ''  # At this stage we do not know if a filename has been set on the command line
        self.description = {}
        self.options = None

        # Make sure that the directories exists
        make_directories(self.config_dir)
        make_directories(self.local_dir)

        self._get_command_line_arguments()

    # End of init() function


    def load_yaml_from_config_file(self, filename):
        """
        Loads definitions from the YAML config file filename
        >>> conf = Conf()
        >>> conf.load_yaml_from_config_file('./bad_formatted.yaml')
        Error in configuration file ./bad_formatted.yaml at position: 9:1
        """

        config_file = codecs.open(filename, 'r', encoding='utf-8')

        try:
            self.description = yaml.safe_load(config_file)
        except yaml.YAMLError as err:
            if hasattr(err, 'problem_mark'):
                mark = err.problem_mark
                print(u'Error in configuration file {} at position: {}:{}'.format(filename, mark.line+1, mark.column+1))
            else:
                print(u'Error in configuration file {}'.format(filename))

        config_file.close()

    # End of load_yaml_from_config_file() function


    def _get_command_line_arguments(self):
        """
        Defines and gets all the arguments for the command line using
        argparse module. This function is called in the __init__ function
        of this class.
        """
        str_version = 'versions.py - %s' % __version__

        parser = argparse.ArgumentParser(description='This program checks releases and versions of programs through RSS or Atom feeds')

        parser.add_argument('-v', '--version', action='version', version=str_version)
        parser.add_argument('-f', '--file', action='store', dest='filename', help='Configuration file with projects to check', default='')
        parser.add_argument('-l', '--list-cache', action='store_true', dest='list_cache', help='Lists all projects and their version in cache', default=False)
        parser.add_argument('-d', '--debug', action='store_true', dest='debug', help='Starts in debug mode and prints things that may help', default=False)

        self.options = parser.parse_args()

        if self.options.filename != '':
            self.config_filename = self.options.filename
        else:
            self.config_filename = os.path.join(self.config_dir, 'versions.yaml')

    # End of get_command_line_arguments() function


    def extract_site_definition(self, site_name):
        """
        extracts whole site definition
        """

        if site_name in self.description:
            return self.description[site_name]
        else:
            return dict()

    # End of extract_site_definition()


    def extract_regex_from_site(self, site_name):
        """
        Extracts a regex from a site as defined in the YAML file.
        Returns the regex if it exists or None otherwise.
        """

        return self.extract_variable_from_site(site_name, 'regex', None)

    # End of extract_regex_from_site() function


    def extract_multiproject_from_site(self, site_name):
        """
        Extracts from a site its separator list for its multiple
        projects in one title. It returns None if multiproject
        is not defined and the list of separators instead
        """

        return self.extract_variable_from_site(site_name, 'multiproject', None)

    # End of extract…multiproject_from_site() function


    def extract_variable_from_site(self, site_name, variable, default_return):
        """
        Extracts variable from site site_name if it exists and return
        default_return otherwise
        """

        site_definition = self.extract_site_definition(site_name)

        if variable in site_definition:
            value = site_definition[variable]
            if value is None:
                print(u'Warning: no variable "{}" for site "{}".'.format(variable, site_name))
                value = default_return
        else:
            value = default_return

        return value

    # End of extract_variable_from_site() function


    def extract_project_list_from_site(self, site_name):
        """
        Extracts a project list from a site as defined in the YAML file.
        """

        return self.extract_variable_from_site(site_name, 'projects', [])

    # End of extract_project_list_from_site() function


    def extract_project_url(self, site_name):
        """
        Extracts the url definition where to check project version.
        """

        return self.extract_variable_from_site(site_name, 'url', '')

    # End of extract_project_url() function


    def extract_project_entry(self, site_name):
        """
        Extracts the entry definition (if any) of a site.
        """

        return self.extract_variable_from_site(site_name, 'entry', '')

    # End of extract_project_entry() function.


    def is_site_of_type(self, site_name, site_type):
        """
        Returns True if site_name is of type 'site_type'
        """

        site_definition = self.extract_site_definition(site_name)
        if 'type' in site_definition:
            return (site_definition['type'] == site_type)
        else:
            return False

    # End of is_site_of_type() function


    def extract_site_list(self, site_type):
        """
        Extracts all sites from a specific type (byproject or list)
        """

        all_site_list = list(self.description.keys())
        site_list = []
        for site_name in all_site_list:
            if self.is_site_of_type(site_name, site_type):
                site_list.insert(0, site_name)

        return site_list

    # End of extract_site_list() function


    def make_site_cache_list_name(self):
        """
        Formats list of cache filenames for all sites.
        """

        all_site_list = list(self.description.keys())
        cache_list = []
        for site_name in all_site_list:
            site_cache = u'{}.cache'.format(site_name)
            cache_list.insert(0, site_cache)

        return cache_list

    # End of make_site_cache_list_name() function


    def get_infos_for_site(self, site_name):
        """
        Returns informations about a site as a tuple
        (list of projects, url to check, filename of the cache, entry checking type)
        """

        project_list = self.extract_project_list_from_site(site_name)
        project_url = self.extract_project_url(site_name)
        project_entry = self.extract_project_entry(site_name)
        cache_filename = u'{}.cache'.format(site_name)

        return (project_list, project_url, cache_filename, project_entry)

    # End of get_infos_for_site() function
# End of Conf class


1			#!/usr/bin/env python
2			# -- coding: utf8 --
3			#
4			# configuration.py : configuration related class and fonctions for
5			# versions.py modules.
6			#
7			# (C) Copyright 2016 - 2018 Olivier Delhomme
8			# e-mail : [email protected]
9			#
10			# This program is free software; you can redistribute it and/or modify
11			# it under the terms of the GNU General Public License as published by
12			# the Free Software Foundation; either version 3, or (at your option)
13			# any later version.
14			#
15			# This program is distributed in the hope that it will be useful,
16			# but WITHOUT ANY WARRANTY; without even the implied warranty of
17			# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			# GNU General Public License for more details.
19			#
20			# You should have received a copy of the GNU General Public License
21			# along with this program; if not, write to the Free Software Foundation,
22			# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23			#
24
25			import codecs
26			import argparse
27			import os
28			import errno
29			import yaml
30
31			__author__ = "Olivier Delhomme <[email protected]>"
32			__date__ = "23.04.2019"
33			__version__ = "1.5.4-rc1"
34
35
36			def make_directories(path):
37			"""
38			Makes all directories in path if possible. It is not an error if
39			path already exists.
40			"""
41
42			try:
43			os.makedirs(path)
44
45			except OSError as exc:
46
47			if exc.errno != errno.EEXIST or os.path.isdir(path) is not True:
48			raise
49
50			# End of make_directories() function
51
52			class Conf:
53			"""
54			Class to store configuration of the program and check version.
55			"""
56
57			config_dir = ''
58			local_dir = ''
59			config_filename = ''
60			description = {}
61			options = None
62
63			def __init__(self):
64			"""
65			Inits the class
66			"""
67			self.config_dir = os.path.expanduser("~/.config/versions")
68			self.local_dir = os.path.expanduser("~/.local/versions")
69			self.config_filename = '' # At this stage we do not know if a filename has been set on the command line
70			self.description = {}
71			self.options = None
72
73			# Make sure that the directories exists
74			make_directories(self.config_dir)
75			make_directories(self.local_dir)
76
77			self._get_command_line_arguments()
78
79			# End of init() function
80
81
82			def load_yaml_from_config_file(self, filename):
83			"""
84			Loads definitions from the YAML config file filename
85			>>> conf = Conf()
86			>>> conf.load_yaml_from_config_file('./bad_formatted.yaml')
87			Error in configuration file ./bad_formatted.yaml at position: 9:1
88			"""
89
90			config_file = codecs.open(filename, 'r', encoding='utf-8')
91
92			try:
93			self.description = yaml.safe_load(config_file)
94			except yaml.YAMLError as err:
95			if hasattr(err, 'problem_mark'):
96			mark = err.problem_mark
97			print(u'Error in configuration file {} at position: {}:{}'.format(filename, mark.line+1, mark.column+1))
98			else:
99			print(u'Error in configuration file {}'.format(filename))
100
101			config_file.close()
102
103			# End of load_yaml_from_config_file() function
104
105
106			def _get_command_line_arguments(self):
107			"""
108			Defines and gets all the arguments for the command line using
109			argparse module. This function is called in the __init__ function
110			of this class.
111			"""
112			str_version = 'versions.py - %s' % __version__
113
114			parser = argparse.ArgumentParser(description='This program checks releases and versions of programs through RSS or Atom feeds')
115
116			parser.add_argument('-v', '--version', action='version', version=str_version)
117			parser.add_argument('-f', '--file', action='store', dest='filename', help='Configuration file with projects to check', default='')
118			parser.add_argument('-l', '--list-cache', action='store_true', dest='list_cache', help='Lists all projects and their version in cache', default=False)
119			parser.add_argument('-d', '--debug', action='store_true', dest='debug', help='Starts in debug mode and prints things that may help', default=False)
120
121			self.options = parser.parse_args()
122
123			if self.options.filename != '':
124			self.config_filename = self.options.filename
125			else:
126			self.config_filename = os.path.join(self.config_dir, 'versions.yaml')
127
128			# End of get_command_line_arguments() function
129
130
131			def extract_site_definition(self, site_name):
132			"""
133			extracts whole site definition
134			"""
135
136			if site_name in self.description:
137			return self.description[site_name]
138			else:
139			return dict()
140
141			# End of extract_site_definition()
142
143
144			def extract_regex_from_site(self, site_name):
145			"""
146			Extracts a regex from a site as defined in the YAML file.
147			Returns the regex if it exists or None otherwise.
148			"""
149
150			return self.extract_variable_from_site(site_name, 'regex', None)
151
152			# End of extract_regex_from_site() function
153
154
155			def extract_multiproject_from_site(self, site_name):
156			"""
157			Extracts from a site its separator list for its multiple
158			projects in one title. It returns None if multiproject
159			is not defined and the list of separators instead
160			"""
161
162			return self.extract_variable_from_site(site_name, 'multiproject', None)
163
164			# End of extract…multiproject_from_site() function
165
166
167			def extract_variable_from_site(self, site_name, variable, default_return):
168			"""
169			Extracts variable from site site_name if it exists and return
170			default_return otherwise
171			"""
172
173			site_definition = self.extract_site_definition(site_name)
174
175			if variable in site_definition:
176			value = site_definition[variable]
177			if value is None:
178			print(u'Warning: no variable "{}" for site "{}".'.format(variable, site_name))
179			value = default_return
180			else:
181			value = default_return
182
183			return value
184
185			# End of extract_variable_from_site() function
186
187
188			def extract_project_list_from_site(self, site_name):
189			"""
190			Extracts a project list from a site as defined in the YAML file.
191			"""
192
193			return self.extract_variable_from_site(site_name, 'projects', [])
194
195			# End of extract_project_list_from_site() function
196
197
198			def extract_project_url(self, site_name):
199			"""
200			Extracts the url definition where to check project version.
201			"""
202
203			return self.extract_variable_from_site(site_name, 'url', '')
204
205			# End of extract_project_url() function
206
207
208			def extract_project_entry(self, site_name):
209			"""
210			Extracts the entry definition (if any) of a site.
211			"""
212
213			return self.extract_variable_from_site(site_name, 'entry', '')
214
215			# End of extract_project_entry() function.
216
217
218			def is_site_of_type(self, site_name, site_type):
219			"""
220			Returns True if site_name is of type 'site_type'
221			"""
222
223			site_definition = self.extract_site_definition(site_name)
224			if 'type' in site_definition:
225			return (site_definition['type'] == site_type)
226			else:
227			return False
228
229			# End of is_site_of_type() function
230
231
232			def extract_site_list(self, site_type):
233			"""
234			Extracts all sites from a specific type (byproject or list)
235			"""
236
237			all_site_list = list(self.description.keys())
238			site_list = []
239			for site_name in all_site_list:
240			if self.is_site_of_type(site_name, site_type):
241			site_list.insert(0, site_name)
242
243			return site_list
244
245			# End of extract_site_list() function
246
247
248			def make_site_cache_list_name(self):
249			"""
250			Formats list of cache filenames for all sites.
251			"""
252
253			all_site_list = list(self.description.keys())
254			cache_list = []
255			for site_name in all_site_list:
256			site_cache = u'{}.cache'.format(site_name)
257			cache_list.insert(0, site_cache)
258
259			return cache_list
260
261			# End of make_site_cache_list_name() function
262
263
264			def get_infos_for_site(self, site_name):
265			"""
266			Returns informations about a site as a tuple
267			(list of projects, url to check, filename of the cache, entry checking type)
268			"""
269
270			project_list = self.extract_project_list_from_site(site_name)
271			project_url = self.extract_project_url(site_name)
272			project_entry = self.extract_project_entry(site_name)
273			cache_filename = u'{}.cache'.format(site_name)
274
275			return (project_list, project_url, cache_filename, project_entry)
276
277			# End of get_infos_for_site() function
278			# End of Conf class
279

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