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import ctypes
import os
import pathlib
import sys
import pytest
import py7zr.helpers
import py7zr.win32compat
PATH_PREFIX = '\\\\?\\'
@pytest.mark.skipif(sys.version_info < (3, 6), reason="requires python3.6 or higher")
@pytest.mark.skipif(sys.platform.startswith("win") and (ctypes.windll.shell32.IsUserAnAdmin() == 0),
reason="Administrator rights is required to make symlink on windows")
def test_symlink_readlink_absolute(tmp_path):
origin = tmp_path / 'parent' / 'original.txt'
origin.parent.mkdir(parents=True, exist_ok=True)
with origin.open('w') as f:
f.write("Original")
slink = tmp_path / "target" / "link"
slink.parent.mkdir(parents=True, exist_ok=True)
target = origin.resolve()
slink.symlink_to(target, False)
if sys.platform.startswith("win"):
assert py7zr.win32compat.readlink(str(tmp_path / "target" / "link")) == PATH_PREFIX + str(target)
assert py7zr.helpers.readlink(str(slink)) == PATH_PREFIX + str(target)
assert py7zr.helpers.readlink(slink) == pathlib.WindowsPath(PATH_PREFIX + str(target))
else:
assert py7zr.helpers.readlink(str(slink)) == str(target)
assert py7zr.helpers.readlink(slink) == target
assert slink.open('r').read() == 'Original'
@pytest.mark.skipif(sys.version_info < (3, 6), reason="requires python3.6 or higher")
@pytest.mark.skipif(sys.platform.startswith("win") and (ctypes.windll.shell32.IsUserAnAdmin() == 0),
reason="Administrator rights is required to make symlink on windows")
def test_symlink_readlink_relative(tmp_path):
origin = tmp_path / 'parent' / 'original.txt'
origin.parent.mkdir(parents=True, exist_ok=True)
with origin.open('w') as f:
f.write("Original")
slink = tmp_path / "target" / "link"
slink.parent.mkdir(parents=True, exist_ok=True)
target = pathlib.Path('../parent/original.txt')
slink.symlink_to(target, False)
if sys.platform.startswith("win"):
assert py7zr.win32compat.readlink(str(tmp_path / "target" / "link")) == str(target)
assert py7zr.win32compat.readlink(tmp_path / "target" / "link") == target
assert slink.open('r').read() == 'Original'
assert py7zr.helpers.readlink(slink) == target
assert py7zr.helpers.readlink(str(slink)) == str(target)
def test_hardlink_readlink(tmp_path):
target = tmp_path / 'parent' / 'original.txt'
target.parent.mkdir(parents=True, exist_ok=True)
with target.open('w') as f:
f.write("Original")
hard = tmp_path / "target" / "link"
hard.parent.mkdir(parents=True, exist_ok=True)
if sys.platform.startswith("win"):
os.system('mklink /H %s %s' % (str(hard), str(target.resolve())))
else:
os.link(str(target.resolve()), str(hard))
assert hard.open('r').read() == 'Original'
assert os.path.samefile(str(hard), str(target.resolve()))
assert not py7zr.helpers.islink(hard)
if sys.platform.startswith("win"):
with pytest.raises(ValueError):
py7zr.win32compat.readlink(str(hard))
@pytest.mark.skipif(not sys.platform.startswith("win"), reason="test on windows")
def test_junction_readlink(tmp_path):
target = tmp_path / 'parent'
target.mkdir(parents=True, exist_ok=True)
with target.joinpath("original.txt").open('w') as f:
f.write("Original")
junction = tmp_path / "target" / "link"
junction.parent.mkdir(parents=True, exist_ok=True)
os.system('mklink /J %s %s' % (str(junction), str(target.resolve())))
assert not os.path.islink(str(junction))
assert py7zr.win32compat.is_reparse_point(str(junction))
assert py7zr.win32compat.readlink(str(junction)) == PATH_PREFIX + str(target.resolve())
assert py7zr.helpers.readlink(str(junction)) == PATH_PREFIX + str(target.resolve())
assert py7zr.win32compat.is_reparse_point(junction)
assert py7zr.win32compat.readlink(junction) == pathlib.WindowsPath(PATH_PREFIX + str(target.resolve()))
assert py7zr.helpers.readlink(junction) == pathlib.WindowsPath(PATH_PREFIX + str(target.resolve()))
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