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How to use parse_start method in yandex-tank

Best Python code snippet using yandex-tank

requirement.py

Source:requirement.py

1# Licensed under the Apache License, Version 2.0 (the "License"); you may2# not use this file except in compliance with the License. You may obtain3# a copy of the License at4#5#      http://www.apache.org/licenses/LICENSE-2.06#7# Unless required by applicable law or agreed to in writing, software8# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT9# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the10# License for the specific language governing permissions and limitations11# under the License.12"""Requirements handling."""13# This module has no IO at all, and none should be added.14import collections15import re16import pkg_resources17# A header for the requirements file(s).18# TODO(lifeless): Remove this once constraints are in use.19_REQS_HEADER = [20    '# The order of packages is significant, because pip processes '21    'them in the order\n',22    '# of appearance. Changing the order has an impact on the overall '23    'integration\n',24    '# process, which may cause wedges in the gate later.\n',25]26class Requirement(collections.namedtuple('Requirement',27                                         ['package', 'location', 'specifiers',28                                          'markers', 'comment', 'extras'])):29    def __new__(cls, package, location, specifiers, markers, comment,30                extras=None):31        return super(Requirement, cls).__new__(32            cls, package, location, specifiers, markers, comment,33            frozenset(extras or ()))34Requirements = collections.namedtuple('Requirements', ['reqs'])35url_re = re.compile(36    '^(?P<url>\s*(?:-e\s)?\s*(?:(?:git+)?https|http|file)://[^#]*)'37    '#egg=(?P<name>[-\.\w]+)')38def canonical_name(req_name):39    """Return the canonical form of req_name."""40    return pkg_resources.safe_name(req_name).lower()41def parse(content, permit_urls=False):42    return to_dict(to_reqs(content, permit_urls=permit_urls))43def parse_line(req_line, permit_urls=False):44    """Parse a single line of a requirements file.45    requirements files here are a subset of pip requirements files: we don't46    try to parse URL entries, or pip options like -f and -e. Those are not47    permitted in global-requirements.txt. If encountered in a synchronised48    file such as requirements.txt or test-requirements.txt, they are illegal49    but currently preserved as-is.50    They may of course be used by local test configurations, just not51    committed into the OpenStack reference branches.52    :param permit_urls: If True, urls are parsed into Requirement tuples.53        By default they are not, because they cannot be reflected into54        setuptools kwargs, and thus the default is conservative. When55        urls are permitted, -e *may* be supplied at the start of the line.56    """57    end = len(req_line)58    hash_pos = req_line.find('#')59    if hash_pos < 0:60        hash_pos = end61    # Don't find urls that are in comments.62    if '://' in req_line[:hash_pos]:63        if permit_urls:64            # We accept only a subset of urls here - they have to have an egg65            # name so that we can tell what project its for without doing66            # network access. Egg markers use a fragment, so we need to pull67            # out url from the entire line.68            m = url_re.match(req_line)69            name = m.group('name')70            location = m.group('url')71            parse_start = m.end('name')72            hash_pos = req_line[parse_start:].find('#')73            if hash_pos < 0:74                hash_pos = end75            else:76                hash_pos = hash_pos + parse_start77        else:78            # Trigger an early failure before we look for ':'79            pkg_resources.Requirement.parse(req_line)80    else:81        parse_start = 082        location = ''83    semi_pos = req_line.find(';', parse_start, hash_pos)84    colon_pos = req_line.find(':', parse_start, hash_pos)85    marker_pos = max(semi_pos, colon_pos)86    if marker_pos < 0:87        marker_pos = hash_pos88    markers = req_line[marker_pos + 1:hash_pos].strip()89    if hash_pos != end:90        comment = req_line[hash_pos:]91    else:92        comment = ''93    req_line = req_line[parse_start:marker_pos]94    extras = ()95    if parse_start:96        # We parsed a url before97        specifier = ''98    elif req_line:99        # Pulled out a requirement100        parsed = pkg_resources.Requirement.parse(req_line)101        name = parsed.project_name102        extras = parsed.extras103        specifier = str(parsed.specifier)104    else:105        # Comments / blank lines etc.106        name = ''107        specifier = ''108    return Requirement(name, location, specifier, markers, comment, extras)109def to_content(reqs, marker_sep=';', line_prefix='', prefix=True):110    lines = []111    if prefix:112        lines += _REQS_HEADER113    for req in reqs.reqs:114        comment_p = ' ' if req.package else ''115        comment = (comment_p + req.comment if req.comment else '')116        marker = marker_sep + req.markers if req.markers else ''117        package = line_prefix + req.package if req.package else ''118        location = req.location + '#egg=' if req.location else ''119        lines.append('%s%s%s%s%s\n' % (120            location, package, req.specifiers, marker, comment))121    return u''.join(lines)122def to_dict(req_sequence):123    reqs = dict()124    for req, req_line in req_sequence:125        if req is not None:126            key = canonical_name(req.package)127            reqs.setdefault(key, []).append((req, req_line))128    return reqs129def _pass_through(req_line, permit_urls=False):130    """Identify unparsable lines."""131    if permit_urls:132        return (req_line.startswith('http://tarballs.openstack.org/') or133                req_line.startswith('-f'))134    else:135        return (req_line.startswith('http://tarballs.openstack.org/') or136                req_line.startswith('-e') or137                req_line.startswith('-f'))138def to_reqs(content, permit_urls=False):139    for content_line in content.splitlines(True):140        req_line = content_line.strip()141        if _pass_through(req_line, permit_urls=permit_urls):142            yield None, content_line143        else:...

_update_metadata.py

Source:_update_metadata.py

1#!/usr/bin/env python2from os.path import *3import glob4import re5import json6pgn_dir = 'pgn'7index_file = 'pgn_index.json'8#PGN tag names, as per PGN spec9EVENT_TAG = 'Event'10#PGN parsing states11PARSE_START = 012PARSE_TAGS = 113PARSE_MOVES = 214def main():15	global index_file, pgn_dir16	normalize_paths()17	print 'Updating game metadata...'18	all_metadata = []19	for pgn_file_path in glob.glob(join(pgn_dir, '*.pgn')):20		pgn_file = basename(pgn_file_path)21		print 'Processing pgn file: ' + pgn_file22		pgn_games_data = parse_pgn(pgn_file_path)23		#dump_games(pgn_data)24		add_file_metadata(all_metadata, pgn_file, pgn_games_data)25	write_metadata(all_metadata, index_file)26	print 'Updated index file [' + index_file + ']'27def parse_pgn(pgn_file):28	with open(pgn_file, 'r') as f:29		state = PARSE_START30		pgn_data = []31		i_line = 032		for line in f:33			line = line.strip()34			if line.startswith('['):35				#TODO: process tag36				#print 'Tag found: ' + line37				if state == PARSE_START:38					curr_game = {}39					state = PARSE_TAGS40				elif state == PARSE_MOVES:41					parse_error(pgn_file, i_line)42					add_game_metadata(pgn_data, curr_game)43					curr_game = {}44					state = PARSE_TAGS45				else:46					#continuing tags for curr game47					pass48				tag_name, tag_value = parse_tag(line)49				curr_game[tag_name] = tag_value50			elif line.startswith('1. '): #TODO: make movetext parsing more robust51				if state == PARSE_START or state == PARSE_TAGS:52					parse_error(pgn_file, i_line)53					curr_game = {}54					state = PARSE_MOVES55				#ignore movetext, we only need metadata56				curr_game["movetext"] = line57			elif line == '':58				if state == PARSE_START:59					pass60				elif state == PARSE_TAGS:61					state = PARSE_MOVES62				elif state == PARSE_MOVES:63					add_game_metadata(pgn_data, curr_game)64					state = PARSE_START65				else:66					parse_error(pgn_file, i_line)67			else:68				parse_error(pgn_file, i_line)69				add_game_metadata(pgn_data, curr_game)70				state = PARSE_START71			i_line = i_line + 172	return pgn_data73def parse_tag(line):74	#tagline_regex = re.compile(r'\[(.+)\] \[\"(.+)\"\]')75	tagline_regex = re.compile('^(.+) "(.+)"$')76	m = tagline_regex.match(line[1:-1])77	return m.group(1), m.group(2)78def normalize_paths():79	global index_file, pgn_dir80	index_file = join(dirname(realpath(__file__)), index_file)81	pgn_dir = join(dirname(realpath(__file__)), pgn_dir)82def parse_error(pgn_file, i_line):83	print '!! Parse error at line ' + str(i_line) + ' of file ' + pgn_file84def add_game_metadata(pgn_data, curr_game):85	if not curr_game is None and len(curr_game) > 0:86		pgn_data.append(curr_game)87def add_file_metadata(all_metadata, pgn_file, games_data):88	pgn_label = pgn_file89	#use event name as label if present90	for g in games_data:91		if EVENT_TAG in g:92			pgn_label = g[EVENT_TAG]93			break94	pgn_data = {}95	pgn_data['file'] = 'pgn/' + pgn_file96	pgn_data['label'] = pgn_label97	pgn_data['games'] = games_data98	all_metadata.append(pgn_data)99def dump_games(pgn_data):100	for g in pgn_data:101		print '------'102		for k in g:103			print k + ':', g[k]104def write_metadata(pgn_data, index_file):105	with open(index_file, 'w') as f:106		json.dump(pgn_data, f)107if __name__ == '__main__':...

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