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"""
Test the handling of hardlinks with api version >= 201
"""
import os
import unittest
import commontest as comtst
import fileset
class LocationMapHardlinksTest(unittest.TestCase):
"""
Test that rdiff-backup properly handles hardlinks
"""
def setUp(self):
self.base_dir = os.path.join(comtst.abs_test_dir,
b"location_map_hardlinks")
self.from1_struct = {
"from1": {"contents": {
"hardlink1": {"content": "initial", "inode": "hardlink1"},
"hardlink2": {"inode": "hardlink1"},
"hardlink3": {"inode": "hardlink1"},
}}
}
self.from1_path = os.path.join(self.base_dir, b"from1")
fileset.create_fileset(self.base_dir, self.from1_struct)
fileset.remove_fileset(self.base_dir, {"bak": {"type": "dir"}})
fileset.remove_fileset(self.base_dir, {"to1": {"type": "dir"}})
self.bak_path = os.path.join(self.base_dir, b"bak")
self.to1_path = os.path.join(self.base_dir, b"to1")
self.success = False
def test_location_map_hardlinks_rotate(self):
"""
verify that hardlinked files can be rotated, see issue #272
i.e. first one removed and new one added.
"""
# backup a 1st time
self.assertEqual(comtst.rdiff_backup_action(
True, True, self.from1_path, self.bak_path,
("--api-version", "201", "--current-time", "10000"),
b"backup", ()), 0)
# kind of rotate the hard linked file
os.remove(os.path.join(self.from1_path, b'hardlink1'))
os.link(os.path.join(self.from1_path, b'hardlink3'),
os.path.join(self.from1_path, b'hardlink4'))
# backup a 2nd time
self.assertEqual(comtst.rdiff_backup_action(
True, True, self.from1_path, self.bak_path,
("--api-version", "201", "--current-time", "20000"),
b"backup", ()), 0)
# verify that the files still have the same inode in the repo
self.assertEqual(
os.lstat(os.path.join(self.bak_path, b'hardlink2')).st_ino,
os.lstat(os.path.join(self.bak_path, b'hardlink3')).st_ino)
self.assertEqual(
os.lstat(os.path.join(self.bak_path, b'hardlink3')).st_ino,
os.lstat(os.path.join(self.bak_path, b'hardlink4')).st_ino)
# restore the hardlinked files
self.assertEqual(comtst.rdiff_backup_action(
True, True, self.bak_path, self.to1_path,
("--api-version", "201"), b"restore", ()), 0)
# verify that the files have been properly restored with same inodes
self.assertEqual(
os.lstat(os.path.join(self.to1_path, b'hardlink2')).st_ino,
os.lstat(os.path.join(self.to1_path, b'hardlink3')).st_ino)
self.assertEqual(
os.lstat(os.path.join(self.to1_path, b'hardlink3')).st_ino,
os.lstat(os.path.join(self.to1_path, b'hardlink4')).st_ino)
# all tests were successful
self.success = True
def tearDown(self):
# we clean-up only if the test was successful
if self.success:
fileset.remove_fileset(self.base_dir, self.from1_struct)
fileset.remove_fileset(self.base_dir, {"bak": {"type": "dir"}})
fileset.remove_fileset(self.base_dir, {"to1": {"type": "dir"}})
if __name__ == "__main__":
unittest.main()
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