# encoding: utf8
from optparse import OptionParser
+import os
+import pkg_resources
import sys
-from .db import connect, metadata
+import pokedex.db
import pokedex.db.load
import pokedex.lookup
command_help()
-def command_dump(*args):
+def get_parser(verbose=True):
+ """Returns an OptionParser prepopulated with the global options.
+
+ `verbose` is whether or not the options should be verbose by default.
+ """
parser = OptionParser()
- parser.add_option('-e', '--engine', dest='engine_uri', default=None)
+ parser.add_option('-e', '--engine', dest='engine_uri', default=os.environ.get('POKEDEX_DB_ENGINE', None))
+ parser.add_option('-i', '--index', dest='index_dir', default=os.environ.get('POKEDEX_INDEX_DIR', None))
+ parser.add_option('-q', '--quiet', dest='verbose', default=verbose, action='store_false')
+ parser.add_option('-v', '--verbose', dest='verbose', default=verbose, action='store_true')
+ return parser
+
+def get_session(options):
+ """Given a parsed options object, connects to the database and returns a
+ session.
+ """
+
+ engine_uri = options.engine_uri
+ got_from = None
+ if engine_uri:
+ got_from = 'command line'
+ else:
+ engine_uri = os.environ.get('POKEDEX_DB_ENGINE', None)
+ if engine_uri:
+ got_from = 'environment'
+ else:
+ got_from = 'default setting'
+
+ session = pokedex.db.connect(engine_uri)
+
+ if options.verbose:
+ print "Connected to database {engine} (from {got_from})" \
+ .format(engine=session.bind.url, got_from=got_from)
+
+ return session
+
+def get_lookup(options, session=None, recreate=False):
+ """Given a parsed options object, opens the whoosh index and returns a
+ PokedexLookup object.
+
+ Unlike `get_session`, this function can actually do population as a side
+ effect! This is fallout from how PokedexLookup works.
+ """
+ # TODO fix the above
+
+ if recreate and not session:
+ raise ValueError("get_lookup() needs an explicit session to regen the index")
+
+ index_dir = options.index_dir
+ got_from = None
+ if index_dir:
+ got_from = 'command line'
+ else:
+ index_dir = os.environ.get('POKEDEX_INDEX_DIR', None)
+ if index_dir:
+ got_from = 'environment'
+ else:
+ index_dir = pkg_resources.resource_filename('pokedex',
+ 'data/whoosh-index')
+ got_from = 'default setting'
+
+ if options.verbose:
+ print "Opened lookup index {index_dir} (from {got_from})" \
+ .format(index_dir=index_dir, got_from=got_from)
+
+ lookup = pokedex.lookup.PokedexLookup(index_dir, session=session,
+ recreate=recreate)
+
+ return lookup
+
+def print_csv_directory(options):
+ """Just prints the csv directory we're about to use."""
+
+ if not options.verbose:
+ return
+
+ if options.directory:
+ csvdir = options.directory
+ got_from = 'command line'
+ else:
+ # This is the same as the db.load default
+ csvdir = pkg_resources.resource_filename('pokedex', 'data/csv')
+ got_from = 'default setting'
+
+ print "Using CSV directory {csvdir} (from {got_from})" \
+ .format(csvdir=csvdir, got_from=got_from)
+
+
+### Plumbing commands
+
+def command_dump(*args):
+ parser = get_parser(verbose=True)
parser.add_option('-d', '--directory', dest='directory', default=None)
- parser.add_option('-q', '--quiet', dest='verbose', default=True, action='store_false')
- options, _ = parser.parse_args(list(args))
+ options, tables = parser.parse_args(list(args))
+
+ session = get_session(options)
+ print_csv_directory(options)
- session = connect(options.engine_uri)
pokedex.db.load.dump(session, directory=options.directory,
+ tables=tables,
verbose=options.verbose)
def command_load(*args):
- parser = OptionParser()
- parser.add_option('-e', '--engine', dest='engine_uri', default=None)
+ parser = get_parser(verbose=True)
parser.add_option('-d', '--directory', dest='directory', default=None)
parser.add_option('-D', '--drop-tables', dest='drop_tables', default=False, action='store_true')
- parser.add_option('-q', '--quiet', dest='verbose', default=True, action='store_false')
- options, _ = parser.parse_args(list(args))
+ options, tables = parser.parse_args(list(args))
+
+ if not options.engine_uri:
+ print "WARNING: You're reloading the default database, but not the lookup index. They"
+ print " might get out of sync, and pokedex commands may not work correctly!"
+ print "To fix this, run `pokedex reindex` when this command finishes. Or, just use"
+ print "`pokedex setup` to do both at once."
+ print
- session = connect(options.engine_uri)
+ session = get_session(options)
+ print_csv_directory(options)
pokedex.db.load.load(session, directory=options.directory,
drop_tables=options.drop_tables,
+ tables=tables,
verbose=options.verbose)
+def command_reindex(*args):
+ parser = get_parser(verbose=True)
+ options, _ = parser.parse_args(list(args))
+
+ session = get_session(options)
+ lookup = get_lookup(options, session=session, recreate=True)
+
+ print "Recreated lookup index."
+
+
def command_setup(*args):
- session = connect()
- pokedex.db.load.load(session, verbose=False, drop_tables=True)
- pokedex.lookup.PokedexLookup(session=session, recreate=True)
+ parser = get_parser(verbose=False)
+ options, _ = parser.parse_args(list(args))
+
+ options.directory = None
+
+ session = get_session(options)
+ print_csv_directory(options)
+ pokedex.db.load.load(session, directory=None, drop_tables=True,
+ verbose=options.verbose)
+
+ lookup = get_lookup(options, session=session, recreate=True)
+ print "Recreated lookup index."
-def command_lookup(name):
- results = pokedex.lookup.PokedexLookup().lookup(name)
+
+def command_status(*args):
+ parser = get_parser(verbose=True)
+ options, _ = parser.parse_args(list(args))
+ options.verbose = True
+ options.directory = None
+
+ session = get_session(options)
+ print_csv_directory(options)
+ lookup = get_lookup(options, recreate=False)
+
+
+### User-facing commands
+
+def command_lookup(*args):
+ parser = get_parser(verbose=False)
+ options, words = parser.parse_args(list(args))
+
+ name = u' '.join(words)
+
+ session = get_session(options)
+ lookup = get_lookup(options, session=session, recreate=False)
+
+ results = lookup.lookup(name)
if not results:
print "No matches."
elif results[0].exact:
print u"""pokedex -- a command-line Pokédex interface
usage: pokedex {command} [options...]
Run `pokedex setup` first, or nothing will work!
+See http://bugs.veekun.com/projects/pokedex/wiki/CLI for more documentation.
Commands:
help Displays this message.
System commands:
load Load Pokédex data into a database from CSV files.
dump Dump Pokédex data from a database into CSV files.
- setup Loads Pokédex data into the right place and creates a
- lookup index in the right place. No options or output.
- This will blow away the default database and index!
+ reindex Rebuilds the lookup index from the database.
+ setup Combines load and reindex.
+ status No effect, but prints which engine, index, and csv
+ directory would be used for other commands.
+
+Global options:
+ -e|--engine=URI By default, all commands try to use a SQLite database
+ in the pokedex install directory. Use this option (or
+ a POKEDEX_DB_ENGINE environment variable) to specify an
+ alternate database.
+ -i|--index=DIR By default, all commands try to put the lookup index in
+ the pokedex install directory. Use this option (or a
+ POKEDEX_INDEX_DIR environment variable) to specify an
+ alternate loction.
-Options:
+System options:
-d|--directory By default, load and dump will use the CSV files in the
pokedex install directory. Use this option to specify
a different directory.
-D|--drop-tables With load, drop all tables before loading data.
- -e|--engine=URI By default, all commands try to use a SQLite database
- in the pokedex install directory. Use this option to
- specify an alternate database.
- -q|--quiet Turn off any unnecessary status output from dump/load.
+ -q|--quiet Don't print system output. This is the default for
+ non-system commands and setup.
+ -v|--verbose Print system output. This is the default for system
+ commands, except setup.
+
+ Additionally, load and dump accept a list of table names (possibly with
+ wildcards) and/or csv fileames as an argument list.
""".encode(sys.getdefaultencoding(), 'replace')
sys.exit(0)
"""CSV to database or vice versa."""
import csv
+import os.path
import pkg_resources
+import re
import sys
from sqlalchemy.orm.attributes import instrumentation_registry
+import sqlalchemy.sql.util
import sqlalchemy.types
from pokedex.db import metadata
import pokedex.db.tables as tables
+def _wildcard_char_to_regex(char):
+ """Converts a single wildcard character to the regex equivalent."""
+
+ if char == '?':
+ return '.?'
+ elif char == '*':
+ return '.*'
+ else:
+ return re.escape(char)
+
+def _wildcard_glob_to_regex(glob):
+ """Converts a single wildcard glob to a regex STRING."""
+
+ # If it looks like a filename, make it not one
+ if '.' in glob or '/' in glob:
+ _, filename = os.path.split(glob)
+ table_name, _ = os.path.splitext(filename)
+ glob = table_name
+
+ return u''.join(map(_wildcard_char_to_regex, glob))
+
+def _wildcards_to_regex(strings):
+ """Converts a list of wildcard globs to a single regex object."""
+
+ regex_parts = map(_wildcard_glob_to_regex, strings)
+
+ regex = '^(?:' + '|'.join(regex_parts) + ')$'
+
+ return re.compile(regex)
+
+
def _get_verbose_prints(verbose):
"""If `verbose` is true, returns two functions: one for printing a starting
message, and the other for printing a success or failure message when
return dummy, dummy
-def load(session, directory=None, drop_tables=False, verbose=False):
+def load(session, tables=[], directory=None, drop_tables=False, verbose=False):
"""Load data from CSV files into the given database session.
Tables are created automatically.
`session`
SQLAlchemy session to use.
+ `tables`
+ List of tables to load. If omitted, all tables are loaded.
+
`directory`
Directory the CSV files reside in. Defaults to the `pokedex` data
directory.
if not directory:
directory = pkg_resources.resource_filename('pokedex', 'data/csv')
+ if tables:
+ regex = _wildcards_to_regex(tables)
+ table_names = filter(regex.match, metadata.tables.keys())
+ else:
+ table_names = metadata.tables.keys()
+
+ table_objs = [metadata.tables[name] for name in table_names]
+ table_objs = sqlalchemy.sql.util.sort_tables(table_objs)
+
+
# Drop all tables if requested
if drop_tables:
print_start('Dropping tables')
- metadata.drop_all()
+ for table in reversed(table_objs):
+ table.drop(checkfirst=True)
print_done()
- metadata.create_all()
+ for table in table_objs:
+ table.create()
connection = session.connection()
# Okay, run through the tables and actually load the data now
- for table_obj in metadata.sorted_tables:
+ for table_obj in table_objs:
table_name = table_obj.name
insert_stmt = table_obj.insert()
# Remembering some zillion rows in the session consumes a lot of
# RAM. Let's not do that. Commit every 1000 rows
- if len(new_rows) > 1000:
+ if len(new_rows) >= 1000:
insert_and_commit()
insert_and_commit()
-def dump(session, directory=None, verbose=False):
+def dump(session, tables=[], directory=None, verbose=False):
"""Dumps the contents of a database to a set of CSV files. Probably not
useful to anyone besides a developer.
`session`
SQLAlchemy session to use.
+ `tables`
+ List of tables to dump. If omitted, all tables are dumped.
+
`directory`
Directory the CSV files should be put in. Defaults to the `pokedex`
data directory.
if not directory:
directory = pkg_resources.resource_filename('pokedex', 'data/csv')
- for table_name in sorted(metadata.tables.keys()):
+ if tables:
+ regex = _wildcards_to_regex(tables)
+ table_names = filter(regex.match, metadata.tables.keys())
+ else:
+ table_names = metadata.tables.keys()
+
+ table_names.sort()
+
+
+ for table_name in table_names:
print_start(table_name)
table = metadata.tables[table_name]
projects / zzz-pokedex.git / commitdiff
