8000 GH-73991: Add `pathlib.Path.copytree()` by barneygale · Pull Request #120718 · python/cpython · GitHub
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GH-73991: Add pathlib.Path.copytree() #120718

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Merged
merged 4 commits into from
Jun 23, 2024
Merged

GH-73991: Add pathlib.Path.copytree() #120718

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873fcc6
GH-73991: Add `pathlib.Path.copytree()`
barneygale Jun 19, 2024
ab5fa4c
Apply suggestions from code review
barneygale Jun 22, 2024
f9bfdc9
Update Lib/test/test_pathlib/test_pathlib.py
barneygale Jun 23, 2024
8c453bb
Improve tests
barneygale Jun 23, 2024
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@barneygale
barneygale committed Jun 23, 2024
commit 8c453bbcc320f4352a080af5de4aaa9590c6f5ce
7 changes: 2 additions & 5 deletions Lib/test/test_pathlib/test_pathlib.py
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Original file line number Diff line number Diff line change
Expand Up @@ -513,17 +513,14 @@ def setUp(self):
os.chmod(self.parser.join(self.base, 'dirE'), 0)

def tearDown(self):
try:
os.chmod(self.parser.join(self.base, 'dirE'), 0o777)
except FileNotFoundError:
pass
os.chmod(self.parser.join(self.base, 'dirE'), 0o777)
os_helper.rmtree(self.base)

def tempdir(self):
d = os_helper._longpath(tempfile.mkdtemp(suffix='-dirD',
dir=os.getcwd()))
self.addCleanup(os_helper.rmtree, d)
return self.cls(d)
return d

def test_matches_pathbase_api(self):
our_names = {name for name in dir(self.cls) if name[0] != '_'}
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57 changes: 25 additions & 32 deletions Lib/test/test_pathlib/test_pathlib_abc.py
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Expand Up @@ -1836,24 +1836,23 @@ def test_copytree_simple(self):
self.assertTrue(target.joinpath('fileC').read_text(),
"this is file C\n")

def test_copytree_complex(self):
def test_copytree_complex(self, follow_symlinks=True):
def ordered_walk(path):
for dirpath, dirnames, filenames in path.walk(follow_symlinks=True):
for dirpath, dirnames, filenames in path.walk(follow_symlinks=follow_symlinks):
dirnames.sort()
filenames.sort()
yield dirpath, dirnames, filenames
source = self.cls(self.base)
target = self.tempdir() / 'target'
base = self.cls(self.base)
source = base / 'dirC'

# Special cases tested elsehwere
source.joinpath('dirE').rmdir()
if self.can_symlink:
source.joinpath('brokenLink').unlink()
source.joinpath('brokenLinkLoop').unlink()
source.joinpath('dirB', 'linkD').unlink()
# Add some symlinks
source.joinpath('linkC').symlink_to('fileC')
source.joinpath('linkD').symlink_to('dirD')

# Perform the copy
source.copytree(target)
target = base / 'copyC'
source.copytree(target, follow_symlinks=follow_symlinks)

# Compare the source and target trees
source_walk = ordered_walk(source)
Expand All @@ -1863,30 +1862,24 @@ def ordered_walk(path):
target_item[0].relative_to(target)) # dirpath
self.assertEqual(source_item[1], target_item[1]) # dirnames
self.assertEqual(source_item[2], target_item[2]) # filenames
# Compare files and symlinks
for filename in source_item[2]:
source_file = source_item[0].joinpath(filename)
target_file = target_item[0].joinpath(filename)
if follow_symlinks or not source_file.is_symlink():
# Regular file.
self.assertEqual(source_file.read_bytes(), target_file.read_bytes())
elif source_file.is_dir():
# Symlink to directory.
self.assertTrue(target_file.is_dir())
self.assertEqual(source_file.readlink(), target_file.readlink())
else:
# Symlink to file.
self.assertEqual(source_file.read_bytes(), target_file.read_bytes())
self.assertEqual(source_file.readlink(), target_file.readlink())

def test_copytree_complex_follow_symlinks_false(self):
def ordered_walk(path):
for dirpath, dirnames, filenames in path.walk(follow_symlinks=False):
dirnames.sort()
filenames.sort()
yield dirpath, dirnames, filenames
source = self.cls(self.base)
target = self.tempdir() / 'target'

# Special cases tested elsewhere
source.joinpath('dirE').rmdir()

# Perform the copy
source.copytree(target, follow_symlinks=False)

# Compare the source and target trees
source_walk = ordered_walk(source)
target_walk = ordered_walk(target)
for source_item, target_item in zip(source_walk, target_walk, strict=True):
self.assertEqual(source_item[0].relative_to(source),
target_item[0].relative_to(target)) # dirpath
self.assertEqual(source_item[1], target_item[1]) # dirnames
self.assertEqual(source_item[2], target_item[2]) # filenames
self.test_copytree_complex(follow_symlinks=False)

def test_copytree_to_existing_directory(self):
base = self.cls(self.base)
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