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Current File : //proc/self/root/usr/lib/calibre/calibre/db/tests/profiling.py

#!/usr/bin/env python3


__license__ = 'GPL v3'
__copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'

import os, cProfile
from tempfile import gettempdir

from calibre.db.legacy import LibraryDatabase

db = None


def initdb(path):
    global db
    db = LibraryDatabase(os.path.expanduser(path))


def show_stats(path):
    from pstats import Stats
    s = Stats(path)
    s.sort_stats('cumulative')
    s.print_stats(30)


def main():
    stats = os.path.join(gettempdir(), 'read_db.stats')
    pr = cProfile.Profile()
    initdb('~/test library')
    all_ids = db.new_api.all_book_ids()  # noqa
    pr.enable()
    for book_id in all_ids:
        db.new_api._composite_for('#isbn', book_id)
        db.new_api._composite_for('#formats', book_id)
    pr.disable()
    pr.dump_stats(stats)
    show_stats(stats)
    print('Stats saved to', stats)


if __name__ == '__main__':
    main()

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