build.setup.DevelopMode.run() - Code Metrics - Inspection of "[WIP] Remove unused dep" - kytos/flow_manager - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#69)

by Humberto

created 2019-03-14 13:48 UTC

build.setup.DevelopMode.run() A

↳ Parent: build.setup

Complexity

Conditions

Size

Total Lines	9
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Importance

Changes

Metric	Value
eloc	6
dl	0
loc	9
rs	10
c	0
b	0
f	0
ccs	0
cts	6
cp	0
cc	2
nop	1
crap	6

"""Setup script.

Run "python3 setup.py --help-commands" to list all available commands and their
descriptions.
"""
import os
import shutil
import sys
from abc import abstractmethod
from pathlib import Path
from subprocess import call, check_call

from setuptools import Command, setup
from setuptools.command.develop import develop
from setuptools.command.egg_info import egg_info
from setuptools.command.install import install

if 'bdist_wheel' in sys.argv:
    raise RuntimeError("This setup.py does not support wheels")

# Paths setup with virtualenv detection
if 'VIRTUAL_ENV' in os.environ:
    BASE_ENV = Path(os.environ['VIRTUAL_ENV'])
else:
    BASE_ENV = Path('/')

NAPP_NAME = 'flow_manager'
NAPP_VERSION = '2.2.1'

# Kytos var folder
VAR_PATH = BASE_ENV / 'var' / 'lib' / 'kytos'
# Path for enabled NApps
ENABLED_PATH = VAR_PATH / 'napps'
# Path to install NApps
INSTALLED_PATH = VAR_PATH / 'napps' / '.installed'
CURRENT_DIR = Path('.').resolve()

# NApps enabled by default
CORE_NAPPS = ['of_core']


class SimpleCommand(Command):
    """Make Command implementation simpler."""

    user_options = []

    @abstractmethod
    def run(self):
        """Run when command is invoked.

        Use *call* instead of *check_call* to ignore failures.
        """

    def initialize_options(self):
        """Set default values for options."""

    def finalize_options(self):
        """Post-process options."""


class Cleaner(SimpleCommand):
    """Custom clean command to tidy up the project root."""

    description = 'clean build, dist, pyc and egg from package and docs'

    def run(self):
        """Clean build, dist, pyc and egg from package and docs."""
        call('rm -vrf ./build ./dist ./*.egg-info', shell=True)
        call('find . -name __pycache__ -type d | xargs rm -rf', shell=True)
        call('make -C docs/ clean', shell=True)


class TestCoverage(SimpleCommand):
    """Display test coverage."""

    description = 'run unit tests and display code coverage'

    def run(self):
        """Run unittest quietly and display coverage report."""
        cmd = 'coverage3 run -m unittest && coverage3 report'
        call(cmd, shell=True)


class Linter(SimpleCommand):
    """Code linters."""

    description = 'lint Python source code'

    def run(self):
        """Run yala."""
        print('Yala is running. It may take several seconds...')
        check_call('yala setup.py', shell=True)


class CITest(SimpleCommand):
    """Run all CI tests."""

    description = 'run all CI tests: unit and doc tests, linter'

    def run(self):
        """Run unit tests with coverage, doc tests and linter."""
        cmds = ['python3.6 setup.py ' + cmd
                for cmd in ('coverage', 'lint')]
        cmd = ' && '.join(cmds)
        check_call(cmd, shell=True)


class KytosInstall:
    """Common code for all install types."""

    @staticmethod
    def enable_core_napps():
        """Enable a NAPP by creating a symlink."""
        (ENABLED_PATH / 'kytos').mkdir(parents=True, exist_ok=True)
        for napp in CORE_NAPPS:
            napp_path = Path('kytos', napp)
            src = ENABLED_PATH / napp_path
            dst = INSTALLED_PATH / napp_path
            symlink_if_different(src, dst)


class InstallMode(install):
    """Create files in var/lib/kytos."""

    description = 'To install NApps, use kytos-utils. Devs, see "develop".'

    def run(self):
        """Direct users to use kytos-utils to install NApps."""
        print(self.description)


class EggInfo(egg_info):
    """Prepare files to be packed."""

    def run(self):
        """Build css."""
        self._install_deps_wheels()
        super().run()

    @staticmethod
    def _install_deps_wheels():
        """Python wheels are much faster (no compiling)."""
        print('Installing dependencies...')
        check_call([sys.executable, '-m', 'pip', 'install', '-r',
                    'requirements/run.in'])


class DevelopMode(develop):
    """Recommended setup for kytos-napps developers.

    Instead of copying the files to the expected directories, a symlink is
    created on the system aiming the current source code.
    """

    description = 'Install NApps in development mode'

    def run(self):
        """Install the package in a developer mode."""
        super().run()
        if self.uninstall:
            shutil.rmtree(str(ENABLED_PATH), ignore_errors=True)
        else:
            self._create_folder_symlinks()
            # self._create_file_symlinks()
            KytosInstall.enable_core_napps()

    @staticmethod
    def _create_folder_symlinks():
        """Symlink to all Kytos NApps folders.

        ./napps/kytos/napp_name will generate a link in
        var/lib/kytos/napps/.installed/kytos/napp_name.
        """
        links = INSTALLED_PATH / 'kytos'
        links.mkdir(parents=True, exist_ok=True)
        code = CURRENT_DIR
        src = links / NAPP_NAME
        symlink_if_different(src, code)

        (ENABLED_PATH / 'kytos').mkdir(parents=True, exist_ok=True)
        dst = ENABLED_PATH / Path('kytos', NAPP_NAME)
        symlink_if_different(dst, src)

    @staticmethod
    def _create_file_symlinks():
        """Symlink to required files."""
        src = ENABLED_PATH / '__init__.py'
        dst = CURRENT_DIR / 'napps' / '__init__.py'
        symlink_if_different(src, dst)


def symlink_if_different(path, target):
    """Force symlink creation if it points anywhere else."""
    # print(f"symlinking {path} to target: {target}...", end=" ")
    if not path.exists():
        # print(f"path doesn't exist. linking...")
        path.symlink_to(target)
    elif not path.samefile(target):
        # print(f"path exists, but is different. removing and linking...")
        # Exists but points to a different file, so let's replace it
        path.unlink()
        path.symlink_to(target)


setup(name=f'kytos_{NAPP_NAME}',
      version=NAPP_VERSION,
      description='Core NApps developed by the Kytos Team',
      url=f'http://github.com/kytos/{NAPP_NAME}',
      author='Kytos Team',
      author_email='[email protected]',
      license='MIT',
      install_requires=['setuptools >= 36.0.1'],
      extras_require={
          'dev': [
              'coverage',
              'pip-tools',
              'yala',
              'tox',
          ],
      },
      cmdclass={
          'clean': Cleaner,
          'ci': CITest,
          'coverage': TestCoverage,
          'develop': DevelopMode,
          'install': InstallMode,
          'lint': Linter,
          'egg_info': EggInfo,
      },
      zip_safe=False,
      classifiers=[
          'License :: OSI Approved :: MIT License',
          'Operating System :: POSIX :: Linux',
          'Programming Language :: Python :: 3.6',
          'Topic :: System :: Networking',
      ])


1			"""Setup script.
2
3			Run "python3 setup.py --help-commands" to list all available commands and their
4			descriptions.
5			"""
6			import os
7			import shutil
8			import sys
9			from abc import abstractmethod
10			from pathlib import Path
11			from subprocess import call, check_call
12
13			from setuptools import Command, setup
14			from setuptools.command.develop import develop
15			from setuptools.command.egg_info import egg_info
16			from setuptools.command.install import install
17
18			if 'bdist_wheel' in sys.argv:
19			raise RuntimeError("This setup.py does not support wheels")
20
21			# Paths setup with virtualenv detection
22			if 'VIRTUAL_ENV' in os.environ:
23			BASE_ENV = Path(os.environ['VIRTUAL_ENV'])
24			else:
25			BASE_ENV = Path('/')
26
27			NAPP_NAME = 'flow_manager'
28			NAPP_VERSION = '2.2.1'
29
30			# Kytos var folder
31			VAR_PATH = BASE_ENV / 'var' / 'lib' / 'kytos'
32			# Path for enabled NApps
33			ENABLED_PATH = VAR_PATH / 'napps'
34			# Path to install NApps
35			INSTALLED_PATH = VAR_PATH / 'napps' / '.installed'
36			CURRENT_DIR = Path('.').resolve()
37
38			# NApps enabled by default
39			CORE_NAPPS = ['of_core']
40
41
42			class SimpleCommand(Command):
43			"""Make Command implementation simpler."""
44
45			user_options = []
46
47			@abstractmethod
48			def run(self):
49			"""Run when command is invoked.
50
51			Use call instead of check_call to ignore failures.
52			"""
53
54			def initialize_options(self):
55			"""Set default values for options."""
56
57			def finalize_options(self):
58			"""Post-process options."""
59
60
61			class Cleaner(SimpleCommand):
62			"""Custom clean command to tidy up the project root."""
63
64			description = 'clean build, dist, pyc and egg from package and docs'
65
66			def run(self):
67			"""Clean build, dist, pyc and egg from package and docs."""
68			call('rm -vrf ./build ./dist ./*.egg-info', shell=True)
69			call('find . -name __pycache__ -type d \| xargs rm -rf', shell=True)
70			call('make -C docs/ clean', shell=True)
71
72
73			class TestCoverage(SimpleCommand):
74			"""Display test coverage."""
75
76			description = 'run unit tests and display code coverage'
77
78			def run(self):
79			"""Run unittest quietly and display coverage report."""
80			cmd = 'coverage3 run -m unittest && coverage3 report'
81			call(cmd, shell=True)
82
83
84			class Linter(SimpleCommand):
85			"""Code linters."""
86
87			description = 'lint Python source code'
88
89			def run(self):
90			"""Run yala."""
91			print('Yala is running. It may take several seconds...')
92			check_call('yala setup.py', shell=True)
93
94
95			class CITest(SimpleCommand):
96			"""Run all CI tests."""
97
98			description = 'run all CI tests: unit and doc tests, linter'
99
100			def run(self):
101			"""Run unit tests with coverage, doc tests and linter."""
102			cmds = ['python3.6 setup.py ' + cmd
103			for cmd in ('coverage', 'lint')]
104			cmd = ' && '.join(cmds)
105			check_call(cmd, shell=True)
106
107
108			class KytosInstall:
109			"""Common code for all install types."""
110
111			@staticmethod
112			def enable_core_napps():
113			"""Enable a NAPP by creating a symlink."""
114			(ENABLED_PATH / 'kytos').mkdir(parents=True, exist_ok=True)
115			for napp in CORE_NAPPS:
116			napp_path = Path('kytos', napp)
117			src = ENABLED_PATH / napp_path
118			dst = INSTALLED_PATH / napp_path
119			symlink_if_different(src, dst)
120
121
122			class InstallMode(install):
123			"""Create files in var/lib/kytos."""
124
125			description = 'To install NApps, use kytos-utils. Devs, see "develop".'
126
127			def run(self):
128			"""Direct users to use kytos-utils to install NApps."""
129			print(self.description)
130
131
132			class EggInfo(egg_info):
133			"""Prepare files to be packed."""
134
135			def run(self):
136			"""Build css."""
137			self._install_deps_wheels()
138			super().run()
139
140			@staticmethod
141			def _install_deps_wheels():
142			"""Python wheels are much faster (no compiling)."""
143			print('Installing dependencies...')
144			check_call([sys.executable, '-m', 'pip', 'install', '-r',
145			'requirements/run.in'])
146
147
148			class DevelopMode(develop):
149			"""Recommended setup for kytos-napps developers.
150
151			Instead of copying the files to the expected directories, a symlink is
152			created on the system aiming the current source code.
153			"""
154
155			description = 'Install NApps in development mode'
156
157			def run(self):
158			"""Install the package in a developer mode."""
159			super().run()
160			if self.uninstall:
161			shutil.rmtree(str(ENABLED_PATH), ignore_errors=True)
162			else:
163			self._create_folder_symlinks()
164			# self._create_file_symlinks()
165			KytosInstall.enable_core_napps()
166
167			@staticmethod
168			def _create_folder_symlinks():
169			"""Symlink to all Kytos NApps folders.
170
171			./napps/kytos/napp_name will generate a link in
172			var/lib/kytos/napps/.installed/kytos/napp_name.
173			"""
174			links = INSTALLED_PATH / 'kytos'
175			links.mkdir(parents=True, exist_ok=True)
176			code = CURRENT_DIR
177			src = links / NAPP_NAME
178			symlink_if_different(src, code)
179
180			(ENABLED_PATH / 'kytos').mkdir(parents=True, exist_ok=True)
181			dst = ENABLED_PATH / Path('kytos', NAPP_NAME)
182			symlink_if_different(dst, src)
183
184			@staticmethod
185			def _create_file_symlinks():
186			"""Symlink to required files."""
187			src = ENABLED_PATH / '__init__.py'
188			dst = CURRENT_DIR / 'napps' / '__init__.py'
189			symlink_if_different(src, dst)
190
191
192			def symlink_if_different(path, target):
193			"""Force symlink creation if it points anywhere else."""
194			# print(f"symlinking {path} to target: {target}...", end=" ")
195			if not path.exists():
196			# print(f"path doesn't exist. linking...")
197			path.symlink_to(target)
198			elif not path.samefile(target):
199			# print(f"path exists, but is different. removing and linking...")
200			# Exists but points to a different file, so let's replace it
201			path.unlink()
202			path.symlink_to(target)
203
204
205			setup(name=f'kytos_{NAPP_NAME}',
206			version=NAPP_VERSION,
207			description='Core NApps developed by the Kytos Team',
208			url=f'http://github.com/kytos/{NAPP_NAME}',
209			author='Kytos Team',
210			author_email='[email protected]',
211			license='MIT',
212			install_requires=['setuptools >= 36.0.1'],
213			extras_require={
214			'dev': [
215			'coverage',
216			'pip-tools',
217			'yala',
218			'tox',
219			],
220			},
221			cmdclass={
222			'clean': Cleaner,
223			'ci': CITest,
224			'coverage': TestCoverage,
225			'develop': DevelopMode,
226			'install': InstallMode,
227			'lint': Linter,
228			'egg_info': EggInfo,
229			},
230			zip_safe=False,
231			classifiers=[
232			'License :: OSI Approved :: MIT License',
233			'Operating System :: POSIX :: Linux',
234			'Programming Language :: Python :: 3.6',
235			'Topic :: System :: Networking',
236			])
237

kytos / flow_manager

Pull Request — master (#69)

build.setup.DevelopMode.run() A

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