mirror of https://github.com/python/cpython
809 lines
28 KiB
Python
809 lines
28 KiB
Python
# Copyright (C) 2003 Python Software Foundation
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import unittest
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import shutil
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import tempfile
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import sys
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import stat
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import os
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import os.path
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from os.path import splitdrive
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from distutils.spawn import find_executable, spawn
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from shutil import (_make_tarball, _make_zipfile, make_archive,
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register_archive_format, unregister_archive_format,
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get_archive_formats)
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import tarfile
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import warnings
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from test import test_support
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from test.test_support import TESTFN, check_warnings, captured_stdout
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TESTFN2 = TESTFN + "2"
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try:
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import grp
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import pwd
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UID_GID_SUPPORT = True
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except ImportError:
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UID_GID_SUPPORT = False
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try:
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import zlib
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except ImportError:
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zlib = None
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try:
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import zipfile
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ZIP_SUPPORT = True
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except ImportError:
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ZIP_SUPPORT = find_executable('zip')
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class TestShutil(unittest.TestCase):
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def setUp(self):
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super(TestShutil, self).setUp()
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self.tempdirs = []
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def tearDown(self):
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super(TestShutil, self).tearDown()
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while self.tempdirs:
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d = self.tempdirs.pop()
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shutil.rmtree(d, os.name in ('nt', 'cygwin'))
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def write_file(self, path, content='xxx'):
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"""Writes a file in the given path.
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path can be a string or a sequence.
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"""
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if isinstance(path, (list, tuple)):
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path = os.path.join(*path)
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f = open(path, 'w')
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try:
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f.write(content)
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finally:
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f.close()
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def mkdtemp(self):
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"""Create a temporary directory that will be cleaned up.
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Returns the path of the directory.
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"""
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d = tempfile.mkdtemp()
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self.tempdirs.append(d)
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return d
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def test_rmtree_errors(self):
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# filename is guaranteed not to exist
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filename = tempfile.mktemp()
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self.assertRaises(OSError, shutil.rmtree, filename)
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# See bug #1071513 for why we don't run this on cygwin
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# and bug #1076467 for why we don't run this as root.
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if (hasattr(os, 'chmod') and sys.platform[:6] != 'cygwin'
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and not (hasattr(os, 'geteuid') and os.geteuid() == 0)):
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def test_on_error(self):
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self.errorState = 0
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os.mkdir(TESTFN)
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self.childpath = os.path.join(TESTFN, 'a')
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f = open(self.childpath, 'w')
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f.close()
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old_dir_mode = os.stat(TESTFN).st_mode
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old_child_mode = os.stat(self.childpath).st_mode
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# Make unwritable.
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os.chmod(self.childpath, stat.S_IREAD)
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os.chmod(TESTFN, stat.S_IREAD)
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shutil.rmtree(TESTFN, onerror=self.check_args_to_onerror)
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# Test whether onerror has actually been called.
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self.assertEqual(self.errorState, 2,
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"Expected call to onerror function did not happen.")
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# Make writable again.
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os.chmod(TESTFN, old_dir_mode)
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os.chmod(self.childpath, old_child_mode)
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# Clean up.
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shutil.rmtree(TESTFN)
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def check_args_to_onerror(self, func, arg, exc):
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# test_rmtree_errors deliberately runs rmtree
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# on a directory that is chmod 400, which will fail.
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# This function is run when shutil.rmtree fails.
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# 99.9% of the time it initially fails to remove
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# a file in the directory, so the first time through
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# func is os.remove.
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# However, some Linux machines running ZFS on
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# FUSE experienced a failure earlier in the process
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# at os.listdir. The first failure may legally
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# be either.
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if self.errorState == 0:
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if func is os.remove:
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self.assertEqual(arg, self.childpath)
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else:
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self.assertIs(func, os.listdir,
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"func must be either os.remove or os.listdir")
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self.assertEqual(arg, TESTFN)
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self.assertTrue(issubclass(exc[0], OSError))
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self.errorState = 1
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else:
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self.assertEqual(func, os.rmdir)
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self.assertEqual(arg, TESTFN)
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self.assertTrue(issubclass(exc[0], OSError))
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self.errorState = 2
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def test_rmtree_dont_delete_file(self):
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# When called on a file instead of a directory, don't delete it.
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handle, path = tempfile.mkstemp()
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os.fdopen(handle).close()
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self.assertRaises(OSError, shutil.rmtree, path)
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os.remove(path)
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def test_copytree_simple(self):
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def write_data(path, data):
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f = open(path, "w")
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f.write(data)
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f.close()
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def read_data(path):
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f = open(path)
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data = f.read()
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f.close()
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return data
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src_dir = tempfile.mkdtemp()
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dst_dir = os.path.join(tempfile.mkdtemp(), 'destination')
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write_data(os.path.join(src_dir, 'test.txt'), '123')
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os.mkdir(os.path.join(src_dir, 'test_dir'))
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write_data(os.path.join(src_dir, 'test_dir', 'test.txt'), '456')
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try:
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shutil.copytree(src_dir, dst_dir)
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self.assertTrue(os.path.isfile(os.path.join(dst_dir, 'test.txt')))
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self.assertTrue(os.path.isdir(os.path.join(dst_dir, 'test_dir')))
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self.assertTrue(os.path.isfile(os.path.join(dst_dir, 'test_dir',
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'test.txt')))
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actual = read_data(os.path.join(dst_dir, 'test.txt'))
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self.assertEqual(actual, '123')
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actual = read_data(os.path.join(dst_dir, 'test_dir', 'test.txt'))
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self.assertEqual(actual, '456')
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finally:
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for path in (
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os.path.join(src_dir, 'test.txt'),
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os.path.join(dst_dir, 'test.txt'),
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os.path.join(src_dir, 'test_dir', 'test.txt'),
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os.path.join(dst_dir, 'test_dir', 'test.txt'),
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):
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if os.path.exists(path):
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os.remove(path)
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for path in (src_dir,
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os.path.dirname(dst_dir)
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):
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if os.path.exists(path):
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shutil.rmtree(path)
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def test_copytree_with_exclude(self):
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def write_data(path, data):
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f = open(path, "w")
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f.write(data)
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f.close()
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def read_data(path):
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f = open(path)
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data = f.read()
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f.close()
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return data
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# creating data
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join = os.path.join
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exists = os.path.exists
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src_dir = tempfile.mkdtemp()
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try:
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dst_dir = join(tempfile.mkdtemp(), 'destination')
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write_data(join(src_dir, 'test.txt'), '123')
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write_data(join(src_dir, 'test.tmp'), '123')
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os.mkdir(join(src_dir, 'test_dir'))
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write_data(join(src_dir, 'test_dir', 'test.txt'), '456')
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os.mkdir(join(src_dir, 'test_dir2'))
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write_data(join(src_dir, 'test_dir2', 'test.txt'), '456')
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os.mkdir(join(src_dir, 'test_dir2', 'subdir'))
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os.mkdir(join(src_dir, 'test_dir2', 'subdir2'))
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write_data(join(src_dir, 'test_dir2', 'subdir', 'test.txt'), '456')
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write_data(join(src_dir, 'test_dir2', 'subdir2', 'test.py'), '456')
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# testing glob-like patterns
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try:
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patterns = shutil.ignore_patterns('*.tmp', 'test_dir2')
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shutil.copytree(src_dir, dst_dir, ignore=patterns)
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# checking the result: some elements should not be copied
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self.assertTrue(exists(join(dst_dir, 'test.txt')))
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self.assertTrue(not exists(join(dst_dir, 'test.tmp')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2')))
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finally:
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if os.path.exists(dst_dir):
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shutil.rmtree(dst_dir)
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try:
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patterns = shutil.ignore_patterns('*.tmp', 'subdir*')
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shutil.copytree(src_dir, dst_dir, ignore=patterns)
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# checking the result: some elements should not be copied
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self.assertTrue(not exists(join(dst_dir, 'test.tmp')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir2')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir')))
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finally:
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if os.path.exists(dst_dir):
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shutil.rmtree(dst_dir)
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# testing callable-style
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try:
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def _filter(src, names):
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res = []
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for name in names:
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path = os.path.join(src, name)
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if (os.path.isdir(path) and
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path.split()[-1] == 'subdir'):
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res.append(name)
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elif os.path.splitext(path)[-1] in ('.py'):
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res.append(name)
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return res
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shutil.copytree(src_dir, dst_dir, ignore=_filter)
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# checking the result: some elements should not be copied
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir2',
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'test.py')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir')))
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finally:
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if os.path.exists(dst_dir):
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shutil.rmtree(dst_dir)
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finally:
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shutil.rmtree(src_dir)
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shutil.rmtree(os.path.dirname(dst_dir))
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if hasattr(os, "symlink"):
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def test_dont_copy_file_onto_link_to_itself(self):
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# bug 851123.
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os.mkdir(TESTFN)
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src = os.path.join(TESTFN, 'cheese')
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dst = os.path.join(TESTFN, 'shop')
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try:
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f = open(src, 'w')
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f.write('cheddar')
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f.close()
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os.link(src, dst)
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self.assertRaises(shutil.Error, shutil.copyfile, src, dst)
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self.assertEqual(open(src,'r').read(), 'cheddar')
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os.remove(dst)
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# Using `src` here would mean we end up with a symlink pointing
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# to TESTFN/TESTFN/cheese, while it should point at
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# TESTFN/cheese.
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os.symlink('cheese', dst)
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self.assertRaises(shutil.Error, shutil.copyfile, src, dst)
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self.assertEqual(open(src,'r').read(), 'cheddar')
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os.remove(dst)
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finally:
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try:
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shutil.rmtree(TESTFN)
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except OSError:
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pass
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def test_rmtree_on_symlink(self):
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# bug 1669.
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os.mkdir(TESTFN)
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try:
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src = os.path.join(TESTFN, 'cheese')
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dst = os.path.join(TESTFN, 'shop')
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os.mkdir(src)
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os.symlink(src, dst)
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self.assertRaises(OSError, shutil.rmtree, dst)
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finally:
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shutil.rmtree(TESTFN, ignore_errors=True)
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if hasattr(os, "mkfifo"):
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# Issue #3002: copyfile and copytree block indefinitely on named pipes
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def test_copyfile_named_pipe(self):
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os.mkfifo(TESTFN)
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try:
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self.assertRaises(shutil.SpecialFileError,
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shutil.copyfile, TESTFN, TESTFN2)
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self.assertRaises(shutil.SpecialFileError,
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shutil.copyfile, __file__, TESTFN)
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finally:
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os.remove(TESTFN)
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def test_copytree_named_pipe(self):
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os.mkdir(TESTFN)
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try:
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subdir = os.path.join(TESTFN, "subdir")
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os.mkdir(subdir)
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pipe = os.path.join(subdir, "mypipe")
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os.mkfifo(pipe)
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try:
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shutil.copytree(TESTFN, TESTFN2)
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except shutil.Error as e:
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errors = e.args[0]
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self.assertEqual(len(errors), 1)
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src, dst, error_msg = errors[0]
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self.assertEqual("`%s` is a named pipe" % pipe, error_msg)
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else:
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self.fail("shutil.Error should have been raised")
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finally:
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shutil.rmtree(TESTFN, ignore_errors=True)
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shutil.rmtree(TESTFN2, ignore_errors=True)
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@unittest.skipUnless(zlib, "requires zlib")
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def test_make_tarball(self):
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# creating something to tar
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tmpdir = self.mkdtemp()
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self.write_file([tmpdir, 'file1'], 'xxx')
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self.write_file([tmpdir, 'file2'], 'xxx')
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os.mkdir(os.path.join(tmpdir, 'sub'))
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self.write_file([tmpdir, 'sub', 'file3'], 'xxx')
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tmpdir2 = self.mkdtemp()
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unittest.skipUnless(splitdrive(tmpdir)[0] == splitdrive(tmpdir2)[0],
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"source and target should be on same drive")
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base_name = os.path.join(tmpdir2, 'archive')
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# working with relative paths to avoid tar warnings
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old_dir = os.getcwd()
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os.chdir(tmpdir)
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try:
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_make_tarball(splitdrive(base_name)[1], '.')
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finally:
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os.chdir(old_dir)
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# check if the compressed tarball was created
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tarball = base_name + '.tar.gz'
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self.assertTrue(os.path.exists(tarball))
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# trying an uncompressed one
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base_name = os.path.join(tmpdir2, 'archive')
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old_dir = os.getcwd()
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os.chdir(tmpdir)
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try:
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_make_tarball(splitdrive(base_name)[1], '.', compress=None)
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finally:
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os.chdir(old_dir)
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tarball = base_name + '.tar'
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self.assertTrue(os.path.exists(tarball))
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def _tarinfo(self, path):
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tar = tarfile.open(path)
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try:
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names = tar.getnames()
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names.sort()
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return tuple(names)
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finally:
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tar.close()
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def _create_files(self):
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# creating something to tar
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tmpdir = self.mkdtemp()
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dist = os.path.join(tmpdir, 'dist')
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os.mkdir(dist)
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self.write_file([dist, 'file1'], 'xxx')
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self.write_file([dist, 'file2'], 'xxx')
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os.mkdir(os.path.join(dist, 'sub'))
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self.write_file([dist, 'sub', 'file3'], 'xxx')
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os.mkdir(os.path.join(dist, 'sub2'))
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tmpdir2 = self.mkdtemp()
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base_name = os.path.join(tmpdir2, 'archive')
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return tmpdir, tmpdir2, base_name
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@unittest.skipUnless(zlib, "Requires zlib")
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@unittest.skipUnless(find_executable('tar') and find_executable('gzip'),
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'Need the tar command to run')
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def test_tarfile_vs_tar(self):
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tmpdir, tmpdir2, base_name = self._create_files()
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old_dir = os.getcwd()
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os.chdir(tmpdir)
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try:
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_make_tarball(base_name, 'dist')
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finally:
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os.chdir(old_dir)
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# check if the compressed tarball was created
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tarball = base_name + '.tar.gz'
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self.assertTrue(os.path.exists(tarball))
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# now create another tarball using `tar`
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tarball2 = os.path.join(tmpdir, 'archive2.tar.gz')
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tar_cmd = ['tar', '-cf', 'archive2.tar', 'dist']
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gzip_cmd = ['gzip', '-f9', 'archive2.tar']
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old_dir = os.getcwd()
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os.chdir(tmpdir)
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try:
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with captured_stdout() as s:
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spawn(tar_cmd)
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spawn(gzip_cmd)
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finally:
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os.chdir(old_dir)
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self.assertTrue(os.path.exists(tarball2))
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# let's compare both tarballs
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self.assertEquals(self._tarinfo(tarball), self._tarinfo(tarball2))
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# trying an uncompressed one
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base_name = os.path.join(tmpdir2, 'archive')
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old_dir = os.getcwd()
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os.chdir(tmpdir)
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try:
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_make_tarball(base_name, 'dist', compress=None)
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finally:
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os.chdir(old_dir)
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tarball = base_name + '.tar'
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self.assertTrue(os.path.exists(tarball))
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# now for a dry_run
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base_name = os.path.join(tmpdir2, 'archive')
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old_dir = os.getcwd()
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os.chdir(tmpdir)
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try:
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_make_tarball(base_name, 'dist', compress=None, dry_run=True)
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finally:
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os.chdir(old_dir)
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tarball = base_name + '.tar'
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self.assertTrue(os.path.exists(tarball))
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@unittest.skipUnless(zlib, "Requires zlib")
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@unittest.skipUnless(ZIP_SUPPORT, 'Need zip support to run')
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def test_make_zipfile(self):
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# creating something to tar
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tmpdir = self.mkdtemp()
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self.write_file([tmpdir, 'file1'], 'xxx')
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self.write_file([tmpdir, 'file2'], 'xxx')
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tmpdir2 = self.mkdtemp()
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base_name = os.path.join(tmpdir2, 'archive')
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_make_zipfile(base_name, tmpdir)
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# check if the compressed tarball was created
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tarball = base_name + '.zip'
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def test_make_archive(self):
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tmpdir = self.mkdtemp()
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base_name = os.path.join(tmpdir, 'archive')
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self.assertRaises(ValueError, make_archive, base_name, 'xxx')
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@unittest.skipUnless(zlib, "Requires zlib")
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def test_make_archive_owner_group(self):
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# testing make_archive with owner and group, with various combinations
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# this works even if there's not gid/uid support
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if UID_GID_SUPPORT:
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group = grp.getgrgid(0)[0]
|
|
owner = pwd.getpwuid(0)[0]
|
|
else:
|
|
group = owner = 'root'
|
|
|
|
base_dir, root_dir, base_name = self._create_files()
|
|
base_name = os.path.join(self.mkdtemp() , 'archive')
|
|
res = make_archive(base_name, 'zip', root_dir, base_dir, owner=owner,
|
|
group=group)
|
|
self.assertTrue(os.path.exists(res))
|
|
|
|
res = make_archive(base_name, 'zip', root_dir, base_dir)
|
|
self.assertTrue(os.path.exists(res))
|
|
|
|
res = make_archive(base_name, 'tar', root_dir, base_dir,
|
|
owner=owner, group=group)
|
|
self.assertTrue(os.path.exists(res))
|
|
|
|
res = make_archive(base_name, 'tar', root_dir, base_dir,
|
|
owner='kjhkjhkjg', group='oihohoh')
|
|
self.assertTrue(os.path.exists(res))
|
|
|
|
@unittest.skipUnless(zlib, "Requires zlib")
|
|
@unittest.skipUnless(UID_GID_SUPPORT, "Requires grp and pwd support")
|
|
def test_tarfile_root_owner(self):
|
|
tmpdir, tmpdir2, base_name = self._create_files()
|
|
old_dir = os.getcwd()
|
|
os.chdir(tmpdir)
|
|
group = grp.getgrgid(0)[0]
|
|
owner = pwd.getpwuid(0)[0]
|
|
try:
|
|
archive_name = _make_tarball(base_name, 'dist', compress=None,
|
|
owner=owner, group=group)
|
|
finally:
|
|
os.chdir(old_dir)
|
|
|
|
# check if the compressed tarball was created
|
|
self.assertTrue(os.path.exists(archive_name))
|
|
|
|
# now checks the rights
|
|
archive = tarfile.open(archive_name)
|
|
try:
|
|
for member in archive.getmembers():
|
|
self.assertEquals(member.uid, 0)
|
|
self.assertEquals(member.gid, 0)
|
|
finally:
|
|
archive.close()
|
|
|
|
def test_make_archive_cwd(self):
|
|
current_dir = os.getcwd()
|
|
def _breaks(*args, **kw):
|
|
raise RuntimeError()
|
|
|
|
register_archive_format('xxx', _breaks, [], 'xxx file')
|
|
try:
|
|
try:
|
|
make_archive('xxx', 'xxx', root_dir=self.mkdtemp())
|
|
except Exception:
|
|
pass
|
|
self.assertEquals(os.getcwd(), current_dir)
|
|
finally:
|
|
unregister_archive_format('xxx')
|
|
|
|
def test_register_archive_format(self):
|
|
|
|
self.assertRaises(TypeError, register_archive_format, 'xxx', 1)
|
|
self.assertRaises(TypeError, register_archive_format, 'xxx', lambda: x,
|
|
1)
|
|
self.assertRaises(TypeError, register_archive_format, 'xxx', lambda: x,
|
|
[(1, 2), (1, 2, 3)])
|
|
|
|
register_archive_format('xxx', lambda: x, [(1, 2)], 'xxx file')
|
|
formats = [name for name, params in get_archive_formats()]
|
|
self.assertIn('xxx', formats)
|
|
|
|
unregister_archive_format('xxx')
|
|
formats = [name for name, params in get_archive_formats()]
|
|
self.assertNotIn('xxx', formats)
|
|
|
|
|
|
class TestMove(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
filename = "foo"
|
|
self.src_dir = tempfile.mkdtemp()
|
|
self.dst_dir = tempfile.mkdtemp()
|
|
self.src_file = os.path.join(self.src_dir, filename)
|
|
self.dst_file = os.path.join(self.dst_dir, filename)
|
|
# Try to create a dir in the current directory, hoping that it is
|
|
# not located on the same filesystem as the system tmp dir.
|
|
try:
|
|
self.dir_other_fs = tempfile.mkdtemp(
|
|
dir=os.path.dirname(__file__))
|
|
self.file_other_fs = os.path.join(self.dir_other_fs,
|
|
filename)
|
|
except OSError:
|
|
self.dir_other_fs = None
|
|
with open(self.src_file, "wb") as f:
|
|
f.write("spam")
|
|
|
|
def tearDown(self):
|
|
for d in (self.src_dir, self.dst_dir, self.dir_other_fs):
|
|
try:
|
|
if d:
|
|
shutil.rmtree(d)
|
|
except:
|
|
pass
|
|
|
|
def _check_move_file(self, src, dst, real_dst):
|
|
contents = open(src, "rb").read()
|
|
shutil.move(src, dst)
|
|
self.assertEqual(contents, open(real_dst, "rb").read())
|
|
self.assertFalse(os.path.exists(src))
|
|
|
|
def _check_move_dir(self, src, dst, real_dst):
|
|
contents = sorted(os.listdir(src))
|
|
shutil.move(src, dst)
|
|
self.assertEqual(contents, sorted(os.listdir(real_dst)))
|
|
self.assertFalse(os.path.exists(src))
|
|
|
|
def test_move_file(self):
|
|
# Move a file to another location on the same filesystem.
|
|
self._check_move_file(self.src_file, self.dst_file, self.dst_file)
|
|
|
|
def test_move_file_to_dir(self):
|
|
# Move a file inside an existing dir on the same filesystem.
|
|
self._check_move_file(self.src_file, self.dst_dir, self.dst_file)
|
|
|
|
def test_move_file_other_fs(self):
|
|
# Move a file to an existing dir on another filesystem.
|
|
if not self.dir_other_fs:
|
|
# skip
|
|
return
|
|
self._check_move_file(self.src_file, self.file_other_fs,
|
|
self.file_other_fs)
|
|
|
|
def test_move_file_to_dir_other_fs(self):
|
|
# Move a file to another location on another filesystem.
|
|
if not self.dir_other_fs:
|
|
# skip
|
|
return
|
|
self._check_move_file(self.src_file, self.dir_other_fs,
|
|
self.file_other_fs)
|
|
|
|
def test_move_dir(self):
|
|
# Move a dir to another location on the same filesystem.
|
|
dst_dir = tempfile.mktemp()
|
|
try:
|
|
self._check_move_dir(self.src_dir, dst_dir, dst_dir)
|
|
finally:
|
|
try:
|
|
shutil.rmtree(dst_dir)
|
|
except:
|
|
pass
|
|
|
|
def test_move_dir_other_fs(self):
|
|
# Move a dir to another location on another filesystem.
|
|
if not self.dir_other_fs:
|
|
# skip
|
|
return
|
|
dst_dir = tempfile.mktemp(dir=self.dir_other_fs)
|
|
try:
|
|
self._check_move_dir(self.src_dir, dst_dir, dst_dir)
|
|
finally:
|
|
try:
|
|
shutil.rmtree(dst_dir)
|
|
except:
|
|
pass
|
|
|
|
def test_move_dir_to_dir(self):
|
|
# Move a dir inside an existing dir on the same filesystem.
|
|
self._check_move_dir(self.src_dir, self.dst_dir,
|
|
os.path.join(self.dst_dir, os.path.basename(self.src_dir)))
|
|
|
|
def test_move_dir_to_dir_other_fs(self):
|
|
# Move a dir inside an existing dir on another filesystem.
|
|
if not self.dir_other_fs:
|
|
# skip
|
|
return
|
|
self._check_move_dir(self.src_dir, self.dir_other_fs,
|
|
os.path.join(self.dir_other_fs, os.path.basename(self.src_dir)))
|
|
|
|
def test_existing_file_inside_dest_dir(self):
|
|
# A file with the same name inside the destination dir already exists.
|
|
with open(self.dst_file, "wb"):
|
|
pass
|
|
self.assertRaises(shutil.Error, shutil.move, self.src_file, self.dst_dir)
|
|
|
|
def test_dont_move_dir_in_itself(self):
|
|
# Moving a dir inside itself raises an Error.
|
|
dst = os.path.join(self.src_dir, "bar")
|
|
self.assertRaises(shutil.Error, shutil.move, self.src_dir, dst)
|
|
|
|
def test_destinsrc_false_negative(self):
|
|
os.mkdir(TESTFN)
|
|
try:
|
|
for src, dst in [('srcdir', 'srcdir/dest')]:
|
|
src = os.path.join(TESTFN, src)
|
|
dst = os.path.join(TESTFN, dst)
|
|
self.assertTrue(shutil._destinsrc(src, dst),
|
|
msg='_destinsrc() wrongly concluded that '
|
|
'dst (%s) is not in src (%s)' % (dst, src))
|
|
finally:
|
|
shutil.rmtree(TESTFN, ignore_errors=True)
|
|
|
|
def test_destinsrc_false_positive(self):
|
|
os.mkdir(TESTFN)
|
|
try:
|
|
for src, dst in [('srcdir', 'src/dest'), ('srcdir', 'srcdir.new')]:
|
|
src = os.path.join(TESTFN, src)
|
|
dst = os.path.join(TESTFN, dst)
|
|
self.assertFalse(shutil._destinsrc(src, dst),
|
|
msg='_destinsrc() wrongly concluded that '
|
|
'dst (%s) is in src (%s)' % (dst, src))
|
|
finally:
|
|
shutil.rmtree(TESTFN, ignore_errors=True)
|
|
|
|
|
|
class TestCopyFile(unittest.TestCase):
|
|
|
|
_delete = False
|
|
|
|
class Faux(object):
|
|
_entered = False
|
|
_exited_with = None
|
|
_raised = False
|
|
def __init__(self, raise_in_exit=False, suppress_at_exit=True):
|
|
self._raise_in_exit = raise_in_exit
|
|
self._suppress_at_exit = suppress_at_exit
|
|
def read(self, *args):
|
|
return ''
|
|
def __enter__(self):
|
|
self._entered = True
|
|
def __exit__(self, exc_type, exc_val, exc_tb):
|
|
self._exited_with = exc_type, exc_val, exc_tb
|
|
if self._raise_in_exit:
|
|
self._raised = True
|
|
raise IOError("Cannot close")
|
|
return self._suppress_at_exit
|
|
|
|
def tearDown(self):
|
|
if self._delete:
|
|
del shutil.open
|
|
|
|
def _set_shutil_open(self, func):
|
|
shutil.open = func
|
|
self._delete = True
|
|
|
|
def test_w_source_open_fails(self):
|
|
def _open(filename, mode='r'):
|
|
if filename == 'srcfile':
|
|
raise IOError('Cannot open "srcfile"')
|
|
assert 0 # shouldn't reach here.
|
|
|
|
self._set_shutil_open(_open)
|
|
|
|
self.assertRaises(IOError, shutil.copyfile, 'srcfile', 'destfile')
|
|
|
|
def test_w_dest_open_fails(self):
|
|
|
|
srcfile = self.Faux()
|
|
|
|
def _open(filename, mode='r'):
|
|
if filename == 'srcfile':
|
|
return srcfile
|
|
if filename == 'destfile':
|
|
raise IOError('Cannot open "destfile"')
|
|
assert 0 # shouldn't reach here.
|
|
|
|
self._set_shutil_open(_open)
|
|
|
|
shutil.copyfile('srcfile', 'destfile')
|
|
self.failUnless(srcfile._entered)
|
|
self.failUnless(srcfile._exited_with[0] is IOError)
|
|
self.assertEqual(srcfile._exited_with[1].args,
|
|
('Cannot open "destfile"',))
|
|
|
|
def test_w_dest_close_fails(self):
|
|
|
|
srcfile = self.Faux()
|
|
destfile = self.Faux(True)
|
|
|
|
def _open(filename, mode='r'):
|
|
if filename == 'srcfile':
|
|
return srcfile
|
|
if filename == 'destfile':
|
|
return destfile
|
|
assert 0 # shouldn't reach here.
|
|
|
|
self._set_shutil_open(_open)
|
|
|
|
shutil.copyfile('srcfile', 'destfile')
|
|
self.failUnless(srcfile._entered)
|
|
self.failUnless(destfile._entered)
|
|
self.failUnless(destfile._raised)
|
|
self.failUnless(srcfile._exited_with[0] is IOError)
|
|
self.assertEqual(srcfile._exited_with[1].args,
|
|
('Cannot close',))
|
|
|
|
def test_w_source_close_fails(self):
|
|
|
|
srcfile = self.Faux(True)
|
|
destfile = self.Faux()
|
|
|
|
def _open(filename, mode='r'):
|
|
if filename == 'srcfile':
|
|
return srcfile
|
|
if filename == 'destfile':
|
|
return destfile
|
|
assert 0 # shouldn't reach here.
|
|
|
|
self._set_shutil_open(_open)
|
|
|
|
self.assertRaises(IOError,
|
|
shutil.copyfile, 'srcfile', 'destfile')
|
|
self.failUnless(srcfile._entered)
|
|
self.failUnless(destfile._entered)
|
|
self.failIf(destfile._raised)
|
|
self.failUnless(srcfile._exited_with[0] is None)
|
|
self.failUnless(srcfile._raised)
|
|
|
|
|
|
def test_main():
|
|
test_support.run_unittest(TestShutil, TestMove, TestCopyFile)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|