verchew.script.get_version() - Code Metrics - Inspection of "Merge pull request #63 from jacebrowning/drop-lega..." - jacebrowning/verchew - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — develop ( e0c4f0...68c53a )

by Jace

created 2019-12-06 23:14 UTC

verchew.script.get_version() A

↳ Parent: verchew.script

Complexity

Conditions

Size

Total Lines	14
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	4.016

Importance

Changes

Metric	Value
cc	4
eloc	11
nop	2
dl	0
loc	14
rs	9.85
c	0
b	0
f	0
ccs	9
cts	10
cp	0.9
crap	4.016

#!/usr/bin/env python
# -*- coding: utf-8 -*-

# The MIT License (MIT)
# Copyright © 2016, Jace Browning
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# Source: https://github.com/jacebrowning/verchew
# Documentation: https://verchew.readthedocs.io
# Package: https://pypi.org/project/verchew


from __future__ import unicode_literals

import argparse
import logging
import os
import re
import sys
from collections import OrderedDict
from subprocess import PIPE, STDOUT, Popen
from typing import Any, Dict


PY2 = sys.version_info[0] == 2

if PY2:
    import ConfigParser as configparser  # pylint: disable=import-error
else:
    import configparser  # type: ignore

__version__ = '3.0b1'

CONFIG_FILENAMES = ['verchew.ini', '.verchew.ini', '.verchewrc', '.verchew']

SAMPLE_CONFIG = """
[Python]

cli = python
version = Python 3.5 || Python 3.6

[Legacy Python]

cli = python2
version = Python 2.7

[virtualenv]

cli = virtualenv
version = 15
message = Only required with Python 2.

[Make]

cli = make
version = GNU Make
optional = true

""".strip()

STYLE = {"~": "✔", "*": "⭑", "?": "⚠", "x": "✘"}

COLOR = {
    "x": "\033[91m",  # red
    "~": "\033[92m",  # green
    "?": "\033[93m",  # yellow
    "*": "\033[94m",  # cyan
    None: "\033[0m",  # reset
}

QUIET = False

log = logging.getLogger(__name__)


def main():
    global QUIET

    args = parse_args()
    configure_logging(args.verbose)
    if args.quiet:
        QUIET = True

    log.debug("PWD: %s", os.getenv('PWD'))
    log.debug("PATH: %s", os.getenv('PATH'))

    path = find_config(args.root, generate=args.init)
    config = parse_config(path)

    if not check_dependencies(config) and args.exit_code:
        sys.exit(1)


def parse_args():
    parser = argparse.ArgumentParser()

    version = "%(prog)s v" + __version__
    parser.add_argument('--version', action='version', version=version)
    parser.add_argument(
        '-r', '--root', metavar='PATH', help="specify a custom project root directory"
    )
    parser.add_argument(
        '--init', action='store_true', help="generate a sample configuration file"
    )
    parser.add_argument(
        '--exit-code',
        action='store_true',
        help="return a non-zero exit code on failure",
    )

    group = parser.add_mutually_exclusive_group()
    group.add_argument(
        '-v', '--verbose', action='count', default=0, help="enable verbose logging"
    )
    group.add_argument(
        '-q', '--quiet', action='store_true', help="suppress all output on success"
    )

    args = parser.parse_args()

    return args


def configure_logging(count=0):
    if count == 0:
        level = logging.WARNING
    elif count == 1:
        level = logging.INFO
    else:
        level = logging.DEBUG

    logging.basicConfig(level=level, format="%(levelname)s: %(message)s")


def find_config(root=None, filenames=None, generate=False):
    root = root or os.getcwd()
    filenames = filenames or CONFIG_FILENAMES

    path = None
    log.info("Looking for config file in: %s", root)
    log.debug("Filename options: %s", ", ".join(filenames))
    for filename in os.listdir(root):
        if filename in filenames:
            path = os.path.join(root, filename)
            log.info("Found config file: %s", path)
            return path

    if generate:
        path = generate_config(root, filenames)
        return path

    msg = "No config file found in: {0}".format(root)
    raise RuntimeError(msg)


def generate_config(root=None, filenames=None):
    root = root or os.getcwd()
    filenames = filenames or CONFIG_FILENAMES

    path = os.path.join(root, filenames[0])

    log.info("Generating sample config: %s", path)
    with open(path, 'w') as config:
        config.write(SAMPLE_CONFIG + '\n')

    return path


def parse_config(path):
    data: Dict[str, Any] = OrderedDict()

    log.info("Parsing config file: %s", path)
    config = configparser.ConfigParser()
    config.read(path)

    for section in config.sections():
        data[section] = OrderedDict()
        for name, value in config.items(section):
            data[section][name] = value

    for name in data:
        version = data[name].get('version') or ""
        data[name]['version'] = version
        data[name]['patterns'] = [v.strip() for v in version.split('||')]

    return data


def check_dependencies(config):
    success = []

    for name, settings in config.items():
        show("Checking for {0}...".format(name), head=True)
        output = get_version(settings['cli'], settings.get('cli_version_arg'))

        for pattern in settings['patterns']:
            if match_version(pattern, output):
                show(_("~") + " MATCHED: {0}".format(pattern))
                success.append(_("~"))
                break
        else:
            if settings.get('optional'):
                show(_("?") + " EXPECTED: {0}".format(settings['version']))
                success.append(_("?"))
            else:
                if QUIET:
                    print(
                        "Unmatched {0} version: {1}".format(name, settings['version'])
                    )
                show(_("x") + " EXPECTED: {0}".format(settings['version']))
                success.append(_("x"))
            if settings.get('message'):
                show(_("*") + " MESSAGE: {0}".format(settings['message']))

    show("Results: " + " ".join(success), head=True)

    return _("x") not in success


def get_version(program, argument=None):
    if argument is None:
        args = [program, '--version']
    elif argument:
        args = [program, argument]
    else:
        args = [program]

    show("$ {0}".format(" ".join(args)))
    output = call(args)
    lines = output.splitlines()
    show(lines[0] if lines else "<nothing>")

    return output


def match_version(pattern, output):
    regex = pattern.replace('.', r'\.') + r'(\b|/)'

    log.debug("Matching %s: %s", regex, output)
    match = re.match(regex, output)
    if match is None:
        match = re.match(r'.*[^\d.]' + regex, output)

    return bool(match)


def call(args):
    try:
        process = Popen(args, stdout=PIPE, stderr=STDOUT)
    except OSError:
        log.debug("Command not found: %s", args[0])
        output = "sh: command not found: {0}".format(args[0])
    else:
        raw = process.communicate()[0]
        output = raw.decode('utf-8').strip()
        log.debug("Command output: %r", output)

    return output


def show(text, start='', end='\n', head=False):
    """Python 2 and 3 compatible version of print."""
    if QUIET:
        return

    if head:
        start = '\n'
        end = '\n\n'

    if log.getEffectiveLevel() < logging.WARNING:
        log.info(text)
    else:
        formatted = start + text + end
        if PY2:
            formatted = formatted.encode('utf-8')
        sys.stdout.write(formatted)
        sys.stdout.flush()


def _(word, is_tty=None, supports_utf8=None, supports_ansi=None):
    """Format and colorize a word based on available encoding."""
    formatted = word

    if is_tty is None:
        is_tty = hasattr(sys.stdout, 'isatty') and sys.stdout.isatty()
    if supports_utf8 is None:
        supports_utf8 = sys.stdout.encoding == 'UTF-8'
    if supports_ansi is None:
        supports_ansi = sys.platform != 'win32' or 'ANSICON' in os.environ

    style_support = supports_utf8
    color_support = is_tty and supports_ansi

    if style_support:
        formatted = STYLE.get(word, word)

    if color_support and COLOR.get(word):
        formatted = COLOR[word] + formatted + COLOR[None]

    return formatted


if __name__ == '__main__':  # pragma: no cover
    main()


1		#!/usr/bin/env python
2		# -- coding: utf-8 --
3
4		# The MIT License (MIT)
5		# Copyright © 2016, Jace Browning
6		#
7		# Permission is hereby granted, free of charge, to any person obtaining a copy
8		# of this software and associated documentation files (the "Software"), to deal
9		# in the Software without restriction, including without limitation the rights
10		# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11		# copies of the Software, and to permit persons to whom the Software is
12		# furnished to do so, subject to the following conditions:
13		#
14		# The above copyright notice and this permission notice shall be included in
15		# all copies or substantial portions of the Software.
16		#
17		# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18		# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19		# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20		# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21		# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22		# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23		# SOFTWARE.
24		#
25		# Source: https://github.com/jacebrowning/verchew
26		# Documentation: https://verchew.readthedocs.io
27		# Package: https://pypi.org/project/verchew
28
29
30	1	from __future__ import unicode_literals
31
32	1	import argparse
33	1	import logging
34	1	import os
35	1	import re
36	1	import sys
37		from collections import OrderedDict
38		from subprocess import PIPE, STDOUT, Popen
39	1	from typing import Any, Dict
40	1
41	1
42		PY2 = sys.version_info[0] == 2
43	1
44		if PY2:
45	1	import ConfigParser as configparser # pylint: disable=import-error
46	1	else:
47	1	import configparser # type: ignore
48
49		__version__ = '3.0b1'
50
51		CONFIG_FILENAMES = ['verchew.ini', '.verchew.ini', '.verchewrc', '.verchew']
52
53		SAMPLE_CONFIG = """
54		[Python]
55
56		cli = python
57		version = Python 3.5 \|\| Python 3.6
58
59		[Legacy Python]
60
61		cli = python2
62		version = Python 2.7
63
64		[virtualenv]
65
66		cli = virtualenv
67		version = 15
68		message = Only required with Python 2.
69
70		[Make]
71
72		cli = make
73	1	version = GNU Make
74		optional = true
75
76		""".strip()
77
78		STYLE = {"~": "✔", "*": "⭑", "?": "⚠", "x": "✘"}
79	1
80		COLOR = {
81		"x": "\033[91m", # red
82		"~": "\033[92m", # green
83		"?": "\033[93m", # yellow
84		"*": "\033[94m", # cyan
85		None: "\033[0m", # reset
86		}
87	1
88		QUIET = False
89
90	1	log = logging.getLogger(__name__)
91	1
92	1
93		def main():
94	1	global QUIET
95	1
96		args = parse_args()
97	1	configure_logging(args.verbose)
98	1	if args.quiet:
99		QUIET = True
100	1
101	1	log.debug("PWD: %s", os.getenv('PWD'))
102		log.debug("PATH: %s", os.getenv('PATH'))
103
104	1	path = find_config(args.root, generate=args.init)
105	1	config = parse_config(path)
106
107	1	if not check_dependencies(config) and args.exit_code:
108	1	sys.exit(1)
109	1
110
111	1	def parse_args():
112		parser = argparse.ArgumentParser()
113	1
114		version = "%(prog)s v" + __version__
115	1	parser.add_argument('--version', action='version', version=version)
116		parser.add_argument(
117		'-r', '--root', metavar='PATH', help="specify a custom project root directory"
118	1	)
119		parser.add_argument(
120	1	'--init', action='store_true', help="generate a sample configuration file"
121		)
122		parser.add_argument(
123	1	'--exit-code',
124	1	action='store_true',
125	1	help="return a non-zero exit code on failure",
126		)
127
128		group = parser.add_mutually_exclusive_group()
129		group.add_argument(
130		'-v', '--verbose', action='count', default=0, help="enable verbose logging"
131	1	)
132		group.add_argument(
133		'-q', '--quiet', action='store_true', help="suppress all output on success"
134	1	)
135	1
136	1	args = parser.parse_args()
137
138	1	return args
139	1
140	1
141	1	def configure_logging(count=0):
142	1	if count == 0:
143	1	level = logging.WARNING
144	1	elif count == 1:
145	1	level = logging.INFO
146		else:
147	1	level = logging.DEBUG
148	1
149	1	logging.basicConfig(level=level, format="%(levelname)s: %(message)s")
150
151	1
152	1	def find_config(root=None, filenames=None, generate=False):
153		root = root or os.getcwd()
154		filenames = filenames or CONFIG_FILENAMES
155	1
156	1	path = None
157	1	log.info("Looking for config file in: %s", root)
158		log.debug("Filename options: %s", ", ".join(filenames))
159	1	for filename in os.listdir(root):
160		if filename in filenames:
161	1	path = os.path.join(root, filename)
162	1	log.info("Found config file: %s", path)
163	1	return path
164
165	1	if generate:
166		path = generate_config(root, filenames)
167		return path
168	1
169	1	msg = "No config file found in: {0}".format(root)
170		raise RuntimeError(msg)
171	1
172	1
173	1	def generate_config(root=None, filenames=None):
174		root = root or os.getcwd()
175	1	filenames = filenames or CONFIG_FILENAMES
176	1
177	1	path = os.path.join(root, filenames[0])
178	1
179		log.info("Generating sample config: %s", path)
180	1	with open(path, 'w') as config:
181		config.write(SAMPLE_CONFIG + '\n')
182
183	1	return path
184	1
185
186	1	def parse_config(path):
187	1	data: Dict[str, Any] = OrderedDict()
188	1
189	1	log.info("Parsing config file: %s", path)
190	1	config = configparser.ConfigParser()
191	1	config.read(path)
192
193	1	for section in config.sections():
194	1	data[section] = OrderedDict()
195	1	for name, value in config.items(section):
196		data[section][name] = value
197	1
198	1	for name in data:
199	1	version = data[name].get('version') or ""
200	1	data[name]['version'] = version
201		data[name]['patterns'] = [v.strip() for v in version.split('\|\|')]
202	1
203		return data
204	1
205
206		def check_dependencies(config):
207	1	success = []
208	1
209	1	for name, settings in config.items():
210		show("Checking for {0}...".format(name), head=True)
211	1	output = get_version(settings['cli'], settings.get('cli_version_arg'))
212	1
213	1	for pattern in settings['patterns']:
214		if match_version(pattern, output):
215	1	show(_("~") + " MATCHED: {0}".format(pattern))
216		success.append(_("~"))
217		break
218	1	else:
219	1	if settings.get('optional'):
220		show(_("?") + " EXPECTED: {0}".format(settings['version']))
221		success.append(_("?"))
222	1	else:
223	1	if QUIET:
224	1	print(
225	1	"Unmatched {0} version: {1}".format(name, settings['version'])
226	1	)
227	1	show(_("x") + " EXPECTED: {0}".format(settings['version']))
228		success.append(_("x"))
229	1	if settings.get('message'):
230	1	show(_("*") + " MESSAGE: {0}".format(settings['message']))
231	1
232		show("Results: " + " ".join(success), head=True)
233	1
234		return _("x") not in success
235
236	1
237		def get_version(program, argument=None):
238	1	if argument is None:
239	1	args = [program, '--version']
240	1	elif argument:
241		args = [program, argument]
242	1	else:
243	1	args = [program]
244
245	1	show("$ {0}".format(" ".join(args)))
246	1	output = call(args)
247		lines = output.splitlines()
248	1	show(lines[0] if lines else "<nothing>")
249	1
250		return output
251
252	1
253		def match_version(pattern, output):
254	1	regex = pattern.replace('.', r'\.') + r'(\b\|/)'
255
256	1	log.debug("Matching %s: %s", regex, output)
257	1	match = re.match(regex, output)
258	1	if match is None:
259	1	match = re.match(r'.*[^\d.]' + regex, output)
260	1
261	1	return bool(match)
262
263	1
264	1	def call(args):
265		try:
266	1	process = Popen(args, stdout=PIPE, stderr=STDOUT)
267	1	except OSError:
268		log.debug("Command not found: %s", args[0])
269	1	output = "sh: command not found: {0}".format(args[0])
270	1	else:
271		raw = process.communicate()[0]
272	1	output = raw.decode('utf-8').strip()
273		log.debug("Command output: %r", output)
274
275		return output
276
277
278		def show(text, start='', end='\n', head=False):
279		"""Python 2 and 3 compatible version of print."""
280		if QUIET:
281		return
282
283		if head:
284		start = '\n'
285		end = '\n\n'
286
287		if log.getEffectiveLevel() < logging.WARNING:
288		log.info(text)
289		else:
290		formatted = start + text + end
291		if PY2:
292		formatted = formatted.encode('utf-8')
293		sys.stdout.write(formatted)
294		sys.stdout.flush()
295
296
297		def _(word, is_tty=None, supports_utf8=None, supports_ansi=None):
298		"""Format and colorize a word based on available encoding."""
299		formatted = word
300
301		if is_tty is None:
302		is_tty = hasattr(sys.stdout, 'isatty') and sys.stdout.isatty()
303		if supports_utf8 is None:
304		supports_utf8 = sys.stdout.encoding == 'UTF-8'
305		if supports_ansi is None:
306		supports_ansi = sys.platform != 'win32' or 'ANSICON' in os.environ
307
308		style_support = supports_utf8
309		color_support = is_tty and supports_ansi
310
311		if style_support:
312		formatted = STYLE.get(word, word)
313
314		if color_support and COLOR.get(word):
315		formatted = COLOR[word] + formatted + COLOR[None]
316
317		return formatted
318
319
320		if __name__ == '__main__': # pragma: no cover
321		main()
322

jacebrowning / verchew

Push — develop ( e0c4f0...68c53a )

verchew.script.get_version() A

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