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GeezerVison is showing github.com — sqlobject/sqlobject/manager/command.py at master · sqlobject/sqlobject Expand file tree/ Copy pathcommand.pyMore file actions executable file ·1309 lines (1190 loc) · 48.8 KB / Copy pathcommand.pyFile metadata and controlsexecutable file ·1309 lines (1190 loc) · 48.8 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 #!/usr/bin/env python from __future__ import print_function import fnmatch import optparse import os import re import sys import textwrap import time import warnings try: from paste.deploy import appconfig except ImportError: appconfig = None import sqlobject from sqlobject import col from sqlobject.classregistry import findClass from sqlobject.declarative import DeclarativeMeta from sqlobject.util import moduleloader from sqlobject.compat import PY2, with_metaclass, string_type # It's not very unsafe to use tempnam like we are doing: warnings.filterwarnings( 'ignore', 'tempnam is a potential security risk.*', RuntimeWarning, '.*command', 28) if PY2: # noqa for flake8 and python 3 input = raw_input # noqa def nowarning_tempnam(*args, **kw): return os.tempnam(*args, **kw) class SQLObjectVersionTable(sqlobject.SQLObject): """ This table is used to store information about the database and its version (used with record and update commands). """ class sqlmeta: table = 'sqlobject_db_version' version = col.StringCol() updated = col.DateTimeCol(default=col.DateTimeCol.now) def db_differences(soClass, conn): """ Returns the differences between a class and the table in a connection. Returns [] if no differences are found. This function does the best it can; it can miss many differences. """ # @@: Repeats a lot from CommandStatus.command, but it's hard # to actually factor out the display logic. Or I'm too lazy # to do so. diffs = [] if not conn.tableExists(soClass.sqlmeta.table): if soClass.sqlmeta.columns: diffs.append('Does not exist in database') else: try: columns = conn.columnsFromSchema(soClass.sqlmeta.table, soClass) except AttributeError: # Database does not support reading columns pass else: existing = {} for _col in columns: _col = _col.withClass(soClass) existing[_col.dbName] = _col missing = {} for _col in soClass.sqlmeta.columnList: if _col.dbName in existing: del existing[_col.dbName] else: missing[_col.dbName] = _col for _col in existing.values(): diffs.append('Database has extra column: %s' % _col.dbName) for _col in missing.values(): diffs.append('Database missing column: %s' % _col.dbName) return diffs class CommandRunner(object): def __init__(self): self.commands = {} self.command_aliases = {} def run(self, argv): invoked_as = argv[0] args = argv[1:] for i in range(len(args)): if not args[i].startswith('-'): # this must be a command command = args[i].lower() del args[i] break else: # no command found self.invalid('No COMMAND given (try "%s help")' % os.path.basename(invoked_as)) real_command = self.command_aliases.get(command, command) if real_command not in self.commands.keys(): self.invalid('COMMAND %s unknown' % command) runner = self.commands[real_command]( invoked_as, command, args, self) runner.run() def register(self, command): name = command.name self.commands[name] = command for alias in command.aliases: self.command_aliases[alias] = name def invalid(self, msg, code=2): print(msg) sys.exit(code) the_runner = CommandRunner() register = the_runner.register def standard_parser(connection=True, simulate=True, interactive=False, find_modules=True): parser = optparse.OptionParser() parser.add_option('-v', '--verbose', help='Be verbose (multiple times for more verbosity)', action='count', dest='verbose', default=0) if simulate: parser.add_option('-n', '--simulate', help="Don't actually do anything (implies -v)", action='store_true', dest='simulate') if connection: parser.add_option('-c', '--connection', help="The database connection URI", metavar='URI', dest='connection_uri') parser.add_option('-f', '--config-file', help="The Paste config file " "that contains the database URI (in the database key)", metavar="FILE", dest="config_file") if find_modules: parser.add_option('-m', '--module', help="Module in which to find SQLObject classes", action='append', metavar='MODULE', dest='modules', default=[]) parser.add_option('-p', '--package', help="Package to search for SQLObject classes", action="append", metavar="PACKAGE", dest="packages", default=[]) parser.add_option('--class', help="Select only named classes (wildcards allowed)", action="append", metavar="NAME", dest="class_matchers", default=[]) if interactive: parser.add_option('-i', '--interactive', help="Ask before doing anything " "(use twice to be more careful)", action="count", dest="interactive", default=0) parser.add_option('--egg', help="Select modules from the given Egg, " "using sqlobject.txt", action="append", metavar="EGG_SPEC", dest="eggs", default=[]) return parser class Command(with_metaclass(DeclarativeMeta, object)): min_args = 0 min_args_error = 'You must provide at least %(min_args)s arguments' max_args = 0 max_args_error = 'You must provide no more than %(max_args)s arguments' aliases = () required_args = [] description = None help = '' def orderClassesByDependencyLevel(self, classes): """ Return classes ordered by their depth in the class dependency tree (this is *not* the inheritance tree), from the top level (independant) classes to the deepest level. The dependency tree is defined by the foreign key relations. """ # @@: written as a self-contained function for now, to prevent # having to modify any core SQLObject component and namespace # contamination. # yemartin - 2006-08-08 class SQLObjectCircularReferenceError(Exception): pass def findReverseDependencies(cls): """ Return a list of classes that cls depends on. Note that "depends on" here mean "has a foreign key pointing to". """ depended = [] for _col in cls.sqlmeta.columnList: if _col.foreignKey: other = findClass(_col.foreignKey, _col.soClass.sqlmeta.registry) if (other is not cls) and (other not in depended): depended.append(other) return depended # Cache to save already calculated dependency levels. dependency_levels = {} def calculateDependencyLevel(cls, dependency_stack=[]): """ Recursively calculate the dependency level of cls, while using the dependency_stack to detect any circular reference. """ # Return value from the cache if already calculated if cls in dependency_levels: return dependency_levels[cls] # Check for circular references if cls in dependency_stack: dependency_stack.append(cls) raise SQLObjectCircularReferenceError( "Found a circular reference: %s " % (' --> '.join([x.__name__ for x in dependency_stack]))) dependency_stack.append(cls) # Recursively inspect dependent classes. depended = findReverseDependencies(cls) if depended: level = max([calculateDependencyLevel(x, dependency_stack) for x in depended]) + 1 else: level = 0 dependency_levels[cls] = level return level # Now simply calculate and sort by dependency levels: try: sorter = [] for cls in classes: level = calculateDependencyLevel(cls) sorter.append((level, cls)) sorter.sort(key=lambda x: x[0]) ordered_classes = [cls for _, cls in sorter] except SQLObjectCircularReferenceError as msg: # Failsafe: return the classes as-is if a circular reference # prevented the dependency levels to be calculated. print("Warning: a circular reference was detected in the " "model. Unable to sort the classes by dependency: they " "will be treated in alphabetic order. This may or may " "not work depending on your database backend. " "The error was:\n%s" % msg) return classes return ordered_classes def __classinit__(cls, new_args): if cls.__bases__ == (object,): # This abstract base class return register(cls) def __init__(self, invoked_as, command_name, args, runner): self.invoked_as = invoked_as self.command_name = command_name self.raw_args = args self.runner = runner def run(self): self.parser.usage = "%%prog [options]\n%s" % self.summary if self.help: help = textwrap.fill( self.help, int(os.environ.get('COLUMNS', 80)) - 4) self.parser.usage += '\n' + help self.parser.prog = '%s %s' % ( os.path.basename(self.invoked_as), self.command_name) if self.description: self.parser.description = self.description self.options, self.args = self.parser.parse_args(self.raw_args) if (getattr(self.options, 'simulate', False) and not self.options.verbose): self.options.verbose = 1 if self.min_args is not None and len(self.args) < self.min_args: self.runner.invalid( self.min_args_error % {'min_args': self.min_args, 'actual_args': len(self.args)}) if self.max_args is not None and len(self.args) > self.max_args: self.runner.invalid( self.max_args_error % {'max_args': self.max_args, 'actual_args': len(self.args)}) for var_name, option_name in self.required_args: if not getattr(self.options, var_name, None): self.runner.invalid( 'You must provide the option %s' % option_name) conf = self.config() if conf and conf.get('sys_path'): update_sys_path(conf['sys_path'], self.options.verbose) if conf and conf.get('database'): conn = sqlobject.connectionForURI(conf['database']) sqlobject.sqlhub.processConnection = conn for egg_spec in getattr(self.options, 'eggs', []): self.load_options_from_egg(egg_spec) self.command() def classes(self, require_connection=True, require_some=False): all = [] for module_name in self.options.modules: all.extend(self.classes_from_module( moduleloader.load_module(module_name))) for package_name in self.options.packages: all.extend(self.classes_from_package(package_name)) for egg_spec in self.options.eggs: all.extend(self.classes_from_egg(egg_spec)) if self.options.class_matchers: filtered = [] for soClass in all: name = soClass.__name__ for matcher in self.options.class_matchers: if fnmatch.fnmatch(name, matcher): filtered.append(soClass) break all = filtered conn = self.connection() if conn: for soClass in all: soClass._connection = conn else: missing = [] for soClass in all: try: if not soClass._connection: missing.append(soClass) except AttributeError: missing.append(soClass) if missing and require_connection: self.runner.invalid( 'These classes do not have connections set:\n * %s\n' 'You must indicate --connection=URI' % '\n * '.join([soClass.__name__ for soClass in missing])) if require_some and not all: print('No classes found!') if self.options.modules: print('Looked in modules: %s' % ', '.join(self.options.modules)) else: print('No modules specified') if self.options.packages: print('Looked in packages: %s' % ', '.join(self.options.packages)) else: print('No packages specified') if self.options.class_matchers: print('Matching class pattern: %s' % self.options.class_matches) if self.options.eggs: print('Looked in eggs: %s' % ', '.join(self.options.eggs)) else: print('No eggs specified') sys.exit(1) return self.orderClassesByDependencyLevel(all) def classes_from_module(self, module): all = [] if hasattr(module, 'soClasses'): for name_or_class in module.soClasses: if isinstance(name_or_class, str): name_or_class = getattr(module, name_or_class) all.append(name_or_class) else: for name in dir(module): value = getattr(module, name) if (isinstance(value, type) and issubclass(value, sqlobject.SQLObject) and value.__module__ == module.__name__): all.append(value) return all def connection(self): config = self.config() if config is not None: assert config.get('database'), ( "No database variable found in config file %s" % self.options.config_file) return sqlobject.connectionForURI(config['database']) elif getattr(self.options, 'connection_uri', None): return sqlobject.connectionForURI(self.options.connection_uri) else: return None def config(self): if not getattr(self.options, 'config_file', None): return None config_file = self.options.config_file if appconfig: if (not config_file.startswith('egg:') and not config_file.startswith('config:')): config_file = 'config:' + config_file return appconfig(config_file, relative_to=os.getcwd()) else: return self.ini_config(config_file) def ini_config(self, conf_fn): conf_section = 'main' if '#' in conf_fn: conf_fn, conf_section = conf_fn.split('#', 1) try: from ConfigParser import ConfigParser except ImportError: from configparser import ConfigParser p = ConfigParser() # Case-sensitive: p.optionxform = str if not os.path.exists(conf_fn): # Stupid RawConfigParser doesn't give an error for # non-existant files: raise OSError( "Config file %s does not exist" % self.options.config_file) p.read([conf_fn]) p._defaults.setdefault( 'here', os.path.dirname(os.path.abspath(conf_fn))) possible_sections = [] for section in p.sections(): name = section.strip().lower() if (conf_section == name or (conf_section == name.split(':')[-1] and name.split(':')[0] in ('app', 'application'))): possible_sections.append(section) if not possible_sections: raise OSError( "Config file %s does not have a section [%s] or [*:%s]" % (conf_fn, conf_section, conf_section)) if len(possible_sections) > 1: raise OSError( "Config file %s has multiple sections matching %s: %s" % (conf_fn, conf_section, ', '.join(possible_sections))) config = {} for op in p.options(possible_sections[0]): config[op] = p.get(possible_sections[0], op) return config def classes_from_package(self, package_name): all = [] package = moduleloader.load_module(package_name) package_dir = os.path.dirname(package.__file__) def find_classes_in_file(arg, dir_name, filenames): if dir_name.startswith('.svn'): return filenames = filter( lambda fname: fname.endswith('.py') and fname != '__init__.py', filenames) for fname in filenames: module_name = os.path.join(dir_name, fname) module_name = module_name[module_name.find(package_name):] module_name = module_name.replace(os.path.sep, '.')[:-3] try: module = moduleloader.load_module(module_name) except ImportError as err: if self.options.verbose: print('Could not import module "%s". ' 'Error was : "%s"' % (module_name, err)) continue except Exception as exc: if self.options.verbose: print('Unknown exception while processing module ' '"%s" : "%s"' % (module_name, exc)) continue classes = self.classes_from_module(module) all.extend(classes) for dirpath, dirnames, filenames in os.walk(package_dir): find_classes_in_file(None, dirpath, dirnames + filenames) return all def classes_from_egg(self, egg_spec): modules = [] dist, conf = self.config_from_egg(egg_spec, warn_no_sqlobject=True) for mod in conf.get('db_module', '').split(','): mod = mod.strip() if not mod: continue if self.options.verbose: print('Looking in module %s' % mod) modules.extend(self.classes_from_module( moduleloader.load_module(mod))) return modules def load_options_from_egg(self, egg_spec): dist, conf = self.config_from_egg(egg_spec) if (hasattr(self.options, 'output_dir') and not self.options.output_dir and conf.get('history_dir')): dir = conf['history_dir'] dir = dir.replace('$base', dist.location) self.options.output_dir = dir def config_from_egg(self, egg_spec, warn_no_sqlobject=True): import pkg_resources dist = pkg_resources.get_distribution(egg_spec) if not dist.has_metadata('sqlobject.txt'): if warn_no_sqlobject: print('No sqlobject.txt in %s egg info' % egg_spec) return None, {} result = {} for line in dist.get_metadata_lines('sqlobject.txt'): line = line.strip() if not line or line.startswith('#'): continue name, value = line.split('=', 1) name = name.strip().lower() if name in result: print('Warning: %s appears more than once ' 'in sqlobject.txt' % name) result[name.strip().lower()] = value.strip() return dist, result def command(self): raise NotImplementedError def _get_prog_name(self): return os.path.basename(self.invoked_as) prog_name = property(_get_prog_name) def ask(self, prompt, safe=False, default=True): if self.options.interactive >= 2: default = safe if default: prompt += ' [Y/n]? ' else: prompt += ' [y/N]? ' while 1: response = input(prompt).strip() if not response.strip(): return default if response and response[0].lower() in ('y', 'n'): return response[0].lower() == 'y' print('Y or N please') def shorten_filename(self, fn): """ Shortens a filename to make it relative to the current directory (if it can). For display purposes. """ if fn.startswith(os.getcwd() + '/'): fn = fn[len(os.getcwd()) + 1:] return fn def open_editor(self, pretext, breaker=None, extension='.txt'): """ Open an editor with the given text. Return the new text, or None if no edits were made. If given, everything after `breaker` will be ignored. """ fn = nowarning_tempnam() + extension f = open(fn, 'w') f.write(pretext) f.close() print('$EDITOR %s' % fn) os.system('$EDITOR %s' % fn) f = open(fn, 'r') content = f.read() f.close() if breaker: content = content.split(breaker)[0] pretext = pretext.split(breaker)[0] if content == pretext or not content.strip(): return None return content class CommandSQL(Command): name = 'sql' summary = 'Show SQL CREATE statements' parser = standard_parser(simulate=False) def command(self): classes = self.classes() allConstraints = [] for cls in classes: if self.options.verbose >= 1: print('-- %s from %s' % ( cls.__name__, cls.__module__)) createSql, constraints = cls.createTableSQL() print(createSql.strip() + ';\n') allConstraints.append(constraints) for constraints in allConstraints: if constraints: for constraint in constraints: if constraint: print(constraint.strip() + ';\n') class CommandList(Command): name = 'list' summary = 'Show all SQLObject classes found' parser = standard_parser(simulate=False, connection=False) def command(self): if self.options.verbose >= 1: print('Classes found:') classes = self.classes(require_connection=False) for soClass in classes: print('%s.%s' % (soClass.__module__, soClass.__name__)) if self.options.verbose >= 1: print(' Table: %s' % soClass.sqlmeta.table) class CommandCreate(Command): name = 'create' summary = 'Create tables' parser = standard_parser(interactive=True) parser.add_option('--create-db', action='store_true', dest='create_db', help="Create the database") def command(self): v = self.options.verbose created = 0 existing = 0 dbs_created = [] constraints = {} for soClass in self.classes(require_some=True): if (self.options.create_db and soClass._connection not in dbs_created): if not self.options.simulate: try: soClass._connection.createEmptyDatabase() except soClass._connection.module.ProgrammingError as e: if str(e).find('already exists') != -1: print('Database already exists') else: raise else: print('(simulating; cannot create database)') dbs_created.append(soClass._connection) if soClass._connection not in constraints.keys(): constraints[soClass._connection] = [] exists = soClass._connection.tableExists(soClass.sqlmeta.table) if v >= 1: if exists: existing += 1 print('%s already exists.' % soClass.__name__) else: print('Creating %s' % soClass.__name__) if v >= 2: sql, extra = soClass.createTableSQL() print(sql) if (not self.options.simulate and not exists): if self.options.interactive: if self.ask('Create %s' % soClass.__name__): created += 1 tableConstraints = soClass.createTable( applyConstraints=False) if tableConstraints: constraints[soClass._connection].append( tableConstraints) else: print('Cancelled') else: created += 1 tableConstraints = soClass.createTable( applyConstraints=False) if tableConstraints: constraints[soClass._connection].append( tableConstraints) for connection in constraints.keys(): if v >= 2: print('Creating constraints') for constraintList in constraints[connection]: for constraint in constraintList: if constraint: connection.query(constraint) if v >= 1: print('%i tables created (%i already exist)' % ( created, existing)) class CommandDrop(Command): name = 'drop' summary = 'Drop tables' parser = standard_parser(interactive=True) def command(self): v = self.options.verbose dropped = 0 not_existing = 0 for soClass in reversed(self.classes()): exists = soClass._connection.tableExists(soClass.sqlmeta.table) if v >= 1: if exists: print('Dropping %s' % soClass.__name__) else: not_existing += 1 print('%s does not exist.' % soClass.__name__) if (not self.options.simulate and exists): if self.options.interactive: if self.ask('Drop %s' % soClass.__name__): dropped += 1 soClass.dropTable() else: print('Cancelled') else: dropped += 1 soClass.dropTable() if v >= 1: print('%i tables dropped (%i didn\'t exist)' % ( dropped, not_existing)) class CommandStatus(Command): name = 'status' summary = 'Show status of classes vs. database' help = ('This command checks the SQLObject definition and checks if ' 'the tables in the database match. It can always test for ' 'missing tables, and on some databases can test for the ' 'existance of other tables. Column types are not currently ' 'checked.') parser = standard_parser(simulate=False) def print_class(self, soClass): if self.printed: return self.printed = True print('Checking %s...' % soClass.__name__) def command(self): good = 0 bad = 0 missing_tables = 0 columnsFromSchema_warning = False for soClass in self.classes(require_some=True): conn = soClass._connection self.printed = False if self.options.verbose: self.print_class(soClass) if not conn.tableExists(soClass.sqlmeta.table): self.print_class(soClass) print(' Does not exist in database') missing_tables += 1 continue try: columns = conn.columnsFromSchema(soClass.sqlmeta.table, soClass) except AttributeError: if not columnsFromSchema_warning: print('Database does not support reading columns') columnsFromSchema_warning = True good += 1 continue except AssertionError as e: print('Cannot read db table %s: %s' % ( soClass.sqlmeta.table, e)) continue existing = {} for _col in columns: _col = _col.withClass(soClass) existing[_col.dbName] = _col missing = {} for _col in soClass.sqlmeta.columnList: if _col.dbName in existing: del existing[_col.dbName] else: missing[_col.dbName] = _col if existing: self.print_class(soClass) for _col in existing.values(): print(' Database has extra column: %s' % _col.dbName) if missing: self.print_class(soClass) for _col in missing.values(): print(' Database missing column: %s' % _col.dbName) if existing or missing: bad += 1 else: good += 1 if self.options.verbose: print('%i in sync; %i out of sync; %i not in database' % ( good, bad, missing_tables)) class CommandHelp(Command): name = 'help' summary = 'Show help' parser = optparse.OptionParser() max_args = 1 def command(self): if self.args: the_runner.run([self.invoked_as, self.args[0], '-h']) else: print('Available commands:') print(' (use "%s help COMMAND" or "%s COMMAND -h" ' % ( self.prog_name, self.prog_name)) print(' for more information)') items = sorted(the_runner.commands.items()) max_len = max([len(cn) for cn, c in items]) for command_name, command in items: print('%s:%s %s' % (command_name, ' ' * (max_len - len(command_name)), command.summary)) if command.aliases: print('%s (Aliases: %s)' % ( ' ' * max_len, ', '.join(command.aliases))) class CommandExecute(Command): name = 'execute' summary = 'Execute SQL statements' help = ('Runs SQL statements directly in the database, with no ' 'intervention. Useful when used with a configuration file. ' 'Each argument is executed as an individual statement.') parser = standard_parser(find_modules=False) parser.add_option('--stdin', help="Read SQL from stdin " "(normally takes SQL from the command line)", dest="use_stdin", action="store_true") max_args = None def command(self): args = self.args if self.options.use_stdin: if self.options.verbose: print("Reading additional SQL from stdin " "(Ctrl-D or Ctrl-Z to finish)...") args.append(sys.stdin.read()) self.conn = self.connection().getConnection() self.cursor = self.conn.cursor() for sql in args: self.execute_sql(sql) def execute_sql(self, sql): if self.options.verbose: print(sql) try: self.cursor.execute(sql) except Exception as e: if not self.options.verbose: print(sql) print("****Error:") print(' ', e) return desc = self.cursor.description rows = self.cursor.fetchall() if self.options.verbose: if not self.cursor.rowcount: print("No rows accessed") else: print("%i rows accessed" % self.cursor.rowcount) if desc: for (name, type_code, display_size, internal_size, precision, scale, null_ok) in desc: sys.stdout.write("%s\t" % name) sys.stdout.write("\n") for row in rows: for _col in row: sys.stdout.write("%r\t" % _col) sys.stdout.write("\n") print() class CommandRecord(Command): name = 'record' summary = 'Record historical information about the database status' help = ('Record state of table definitions. The state of each ' 'table is written out to a separate file in a directory, ' 'and that directory forms a "version". A table is also ' 'added to your database (%s) that reflects the version the ' 'database is currently at. Use the upgrade command to ' 'sync databases with code.' % SQLObjectVersionTable.sqlmeta.table) parser = standard_parser() parser.add_option('--output-dir', help="Base directory for recorded definitions", dest="output_dir", metavar="DIR", default=None) parser.add_option('--no-db-record', help="Don't record version to database", dest="db_record", action="store_false", default=True) parser.add_option('--force-create', help="Create a new version even if appears to be " "identical to the last version", action="store_true", dest="force_create") parser.add_option('--name', help="The name to append to the version. The " "version should sort after previous versions (so " "any versions from the same day should come " "alphabetically before this version).", dest="version_name", metavar="NAME") parser.add_option('--force-db-version', help="Update the database version, and include no " "database information. This is for databases that " "were developed without any interaction with " "this tool, to create a 'beginning' revision.", metavar="VERSION_NAME", dest="force_db_version") parser.add_option('--edit', help="Open an editor for the upgrader in the last " "version (using $EDITOR).", action="store_true", dest="open_editor") version_regex = re.compile(r'^\d\d\d\d-\d\d-\d\d') def command(self): if self.options.force_db_version: self.command_force_db_version() return v = self.options.verbose sim = self.options.simulate classes = self.classes() if not classes: print("No classes found!") return output_dir = self.find_output_dir() version = os.path.basename(output_dir) print("Creating version %s" % version) conns = [] files = {} for cls in self.classes(): dbName = cls._connection.dbName if cls._connection not in conns: conns.append(cls._connection) fn = os.path.join(cls.__name__ + '_' + dbName + '.sql') if sim: continue create, constraints = cls.createTableSQL() if constraints: constraints = '\n-- Constraints:\n%s\n' % ( '\n'.join(constraints)) else: constraints = '' files[fn] = ''.join([ '-- Exported definition from %s\n' % time.strftime('%Y-%m-%dT%H:%M:%S'), '-- Class %s.%s\n' % (cls.__module__, cls.__name__), '-- Database: %s\n' % dbName, create.strip(), '\n', constraints]) last_version_dir = self.find_last_version() if last_version_dir and not self.options.force_create: if v > 1: print("Checking %s to see if it is current" % last_version_dir) files_copy = files.copy() for fn in os.listdir(last_version_dir): |
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