def testStatistics(self):
"""Test the writing of statistics
The file sizes are approximate because the size of directories
could change with different file systems...
"""
def sorti(inclist):
templist = [(inc.getinctime(), inc) for inc in inclist]
templist.sort()
return [inc for (t, inc) in templist]
Globals.compression = 1
Myrm(abs_output_dir)
InternalBackup(1, 1, os.path.join(old_test_dir, b"stattest1"),
abs_output_dir)
InternalBackup(1, 1, os.path.join(old_test_dir, b"stattest2"),
abs_output_dir,
time.time() + 1)
rbdir = rpath.RPath(Globals.local_connection,
os.path.join(abs_output_dir, b"rdiff-backup-data"))
incs = sorti(restore.get_inclist(rbdir.append("session_statistics")))
self.assertEqual(len(incs), 2)
s2 = statistics.StatsObj().read_stats_from_rp(incs[0])
self.assertEqual(s2.SourceFiles, 7)
self.assertLessEqual(700000, s2.SourceFileSize)
self.assertLess(s2.SourceFileSize, 750000)
self.stats_check_initial(s2)
root_stats = statistics.StatsObj().read_stats_from_rp(incs[1])
self.assertEqual(root_stats.SourceFiles, 7)
self.assertLessEqual(550000, root_stats.SourceFileSize)
self.assertLess(root_stats.SourceFileSize, 570000)
self.assertEqual(root_stats.MirrorFiles, 7)
self.assertLessEqual(700000, root_stats.MirrorFileSize)
self.assertLess(root_stats.MirrorFileSize, 750000)
self.assertEqual(root_stats.NewFiles, 1)
self.assertEqual(root_stats.NewFileSize, 0)
self.assertEqual(root_stats.DeletedFiles, 1)
self.assertEqual(root_stats.DeletedFileSize, 200000)
self.assertLessEqual(3, root_stats.ChangedFiles)
self.assertLessEqual(root_stats.ChangedFiles, 4)
self.assertLessEqual(450000, root_stats.ChangedSourceSize)
self.assertLess(root_stats.ChangedSourceSize, 470000)
self.assertLessEqual(400000, root_stats.ChangedMirrorSize)
self.assertLess(root_stats.ChangedMirrorSize, 420000)
self.assertLess(10, root_stats.IncrementFileSize)
self.assertLess(root_stats.IncrementFileSize, 30000)
def testStatistics(self):
"""Test the writing of statistics
The file sizes are approximate because the size of directories
could change with different file systems...
"""
def sorti(inclist):
templist = [(inc.getinctime(), inc) for inc in inclist]
templist.sort()
return [inc for (t, inc) in templist]
Globals.compression = 1
Myrm(abs_output_dir)
InternalBackup(1, 1, os.path.join(old_test_dir, b"stattest1"),
abs_output_dir)
InternalBackup(1, 1, os.path.join(old_test_dir, b"stattest2"),
abs_output_dir,
time.time() + 1)
rbdir = rpath.RPath(Globals.local_connection,
os.path.join(abs_output_dir, b"rdiff-backup-data"))
incs = sorti(restore.get_inclist(rbdir.append("session_statistics")))
assert len(incs) == 2
s2 = statistics.StatsObj().read_stats_from_rp(incs[0])
assert s2.SourceFiles == 7
assert 700000 <= s2.SourceFileSize < 750000, s2.SourceFileSize
self.stats_check_initial(s2)
root_stats = statistics.StatsObj().read_stats_from_rp(incs[1])
assert root_stats.SourceFiles == 7, root_stats.SourceFiles
assert 550000 <= root_stats.SourceFileSize < 570000
assert root_stats.MirrorFiles == 7
assert 700000 <= root_stats.MirrorFileSize < 750000
assert root_stats.NewFiles == 1
assert root_stats.NewFileSize == 0
assert root_stats.DeletedFiles == 1, root_stats.DeletedFiles
assert root_stats.DeletedFileSize == 200000
assert 3 <= root_stats.ChangedFiles <= 4, root_stats.ChangedFiles
assert 450000 <= root_stats.ChangedSourceSize < 470000
assert 400000 <= root_stats.ChangedMirrorSize < 420000, \
root_stats.ChangedMirrorSize
assert 10 < root_stats.IncrementFileSize < 30000
def testInnerRestore(self):
"""Restore part of a dir, see if hard links preserved"""
MakeOutputDir()
output = rpath.RPath(Globals.local_connection, abs_output_dir)
hlout1_dir = os.path.join(abs_test_dir, b"out_hardlink1")
hlout2_dir = os.path.join(abs_test_dir, b"out_hardlink2")
# Now set up directories out_hardlink1 and out_hardlink2
hlout1 = rpath.RPath(Globals.local_connection, hlout1_dir)
if hlout1.lstat():
hlout1.delete()
hlout1.mkdir()
hlout1_sub = hlout1.append("subdir")
hlout1_sub.mkdir()
hl1_1 = hlout1_sub.append("hardlink1")
hl1_2 = hlout1_sub.append("hardlink2")
hl1_3 = hlout1_sub.append("hardlink3")
hl1_4 = hlout1_sub.append("hardlink4")
# 1 and 2 are hard linked, as are 3 and 4
hl1_1.touch()
hl1_2.hardlink(hl1_1.path)
hl1_3.touch()
hl1_4.hardlink(hl1_3.path)
hlout2 = rpath.RPath(Globals.local_connection, hlout2_dir)
if hlout2.lstat():
hlout2.delete()
xcopytree(hlout1_dir, hlout2_dir)
hlout2_sub = hlout2.append("subdir")
hl2_1 = hlout2_sub.append("hardlink1")
hl2_2 = hlout2_sub.append("hardlink2")
hl2_3 = hlout2_sub.append("hardlink3")
hl2_4 = hlout2_sub.append("hardlink4")
# Now 2 and 3 are hard linked, also 1 and 4
rpath.copy_with_attribs(hl1_1, hl2_1)
rpath.copy_with_attribs(hl1_2, hl2_2)
hl2_3.delete()
hl2_3.hardlink(hl2_2.path)
hl2_4.delete()
hl2_4.hardlink(hl2_1.path)
rpath.copy_attribs(hlout1_sub, hlout2_sub)
# Now try backing up twice, making sure hard links are preserved
InternalBackup(1, 1, hlout1.path, output.path)
out_subdir = output.append("subdir")
self.assertEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink2").getinode())
self.assertEqual(
out_subdir.append("hardlink3").getinode(),
out_subdir.append("hardlink4").getinode())
self.assertNotEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink3").getinode())
time.sleep(1)
InternalBackup(1, 1, hlout2.path, output.path)
out_subdir.setdata()
self.assertEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink4").getinode())
self.assertEqual(
out_subdir.append("hardlink2").getinode(),
out_subdir.append("hardlink3").getinode())
self.assertNotEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink2").getinode())
# Now try restoring, still checking hard links.
sub_dir = os.path.join(abs_output_dir, b"subdir")
out2_dir = os.path.join(abs_test_dir, b"out2")
out2 = rpath.RPath(Globals.local_connection, out2_dir)
hlout1 = out2.append("hardlink1")
hlout2 = out2.append("hardlink2")
hlout3 = out2.append("hardlink3")
hlout4 = out2.append("hardlink4")
if out2.lstat():
out2.delete()
InternalRestore(1, 1, sub_dir, out2_dir, 1)
out2.setdata()
for rp in [hlout1, hlout2, hlout3, hlout4]:
rp.setdata()
self.assertEqual(hlout1.getinode(), hlout2.getinode())
self.assertEqual(hlout3.getinode(), hlout4.getinode())
self.assertNotEqual(hlout1.getinode(), hlout3.getinode())
if out2.lstat():
out2.delete()
InternalRestore(1, 1, sub_dir, out2_dir, int(time.time()))
out2.setdata()
for rp in [hlout1, hlout2, hlout3, hlout4]:
rp.setdata()
self.assertEqual(hlout1.getinode(), hlout4.getinode())
self.assertEqual(hlout2.getinode(), hlout3.getinode())
self.assertNotEqual(hlout1.getinode(), hlout2.getinode())
def test_moving_hardlinks(self):
"""Test moving the first hardlinked file in a series to later place in the series.
This test is directed at some previously buggy code that failed to
always keep a sha1 hash in the metadata for the first (and only the
first) file among a series of linked files. The condition that
triggered this bug involved removing the first file from a list of
linked files, while also adding a new file at some later position in
the list. The total number of hardlinked files in the list remains
unchanged. None of the files had a sha1 hash saved in its metadata.
The bug was originally reported here:
https://savannah.nongnu.org/bugs/?26848
"""
# Setup initial backup
MakeOutputDir()
output = rpath.RPath(Globals.local_connection, abs_output_dir)
hlsrc_dir = os.path.join(abs_test_dir, b"src_hardlink")
hlsrc = rpath.RPath(Globals.local_connection, hlsrc_dir)
if hlsrc.lstat():
hlsrc.delete()
hlsrc.mkdir()
hlsrc_sub = hlsrc.append("subdir")
hlsrc_sub.mkdir()
hl_file1 = hlsrc_sub.append("hardlink1")
hl_file1.write_string(self.hello_str)
hl_file2 = hlsrc_sub.append("hardlink2")
hl_file2.hardlink(hl_file1.path)
InternalBackup(1, 1, hlsrc.path, output.path, 10000)
out_subdir = output.append("subdir")
self.assertEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink2").getinode())
# validate that hashes and link counts are correctly saved in metadata
meta_prefix = rpath.RPath(
Globals.local_connection,
os.path.join(abs_output_dir, b"rdiff-backup-data",
b"mirror_metadata"))
incs = meta_prefix.get_incfiles_list()
self.assertEqual(len(incs), 1)
metadata_rp = incs[0]
hashes, link_counts = self.extract_metadata(metadata_rp)
# hashes for ., ./subdir, ./subdir/hardlink1, ./subdir/hardlink3
expected_hashes = [None, None, self.hello_str_hash, None]
self.assertEqual(expected_hashes, hashes)
expected_link_counts = [1, 1, 2, 2]
self.assertEqual(expected_link_counts, link_counts)
# Move the first hardlinked file to be last
hl_file3 = hlsrc_sub.append("hardlink3")
rpath.rename(hl_file1, hl_file3)
InternalBackup(1, 1, hlsrc.path, output.path, 20000)
self.assertEqual(
out_subdir.append("hardlink2").getinode(),
out_subdir.append("hardlink3").getinode())
# validate that hashes and link counts are correctly saved in metadata
incs = meta_prefix.get_incfiles_list()
self.assertEqual(len(incs), 2)
if incs[0].getinctype() == b'snapshot':
metadata_rp = incs[0]
else:
metadata_rp = incs[1]
hashes, link_counts = self.extract_metadata(metadata_rp)
# hashes for ., ./subdir/, ./subdir/hardlink2, ./subdir/hardlink3
expected_hashes = [None, None, self.hello_str_hash, None]
# The following assertion would fail as a result of bugs that are now fixed
self.assertEqual(expected_hashes, hashes)
expected_link_counts = [1, 1, 2, 2]
self.assertEqual(expected_link_counts, link_counts)
# Now try restoring, still checking hard links.
sub_path = os.path.join(abs_output_dir, b"subdir")
restore_path = os.path.join(abs_test_dir, b"hl_restore")
restore_dir = rpath.RPath(Globals.local_connection, restore_path)
hlrestore_file1 = restore_dir.append("hardlink1")
hlrestore_file2 = restore_dir.append("hardlink2")
hlrestore_file3 = restore_dir.append("hardlink3")
if restore_dir.lstat():
restore_dir.delete()
InternalRestore(1, 1, sub_path, restore_path, 10000)
for rp in [hlrestore_file1, hlrestore_file2]:
rp.setdata()
self.assertEqual(hlrestore_file1.getinode(),
hlrestore_file2.getinode())
if restore_dir.lstat():
restore_dir.delete()
InternalRestore(1, 1, sub_path, restore_path, 20000)
for rp in [hlrestore_file2, hlrestore_file3]:
rp.setdata()
self.assertEqual(hlrestore_file2.getinode(),
hlrestore_file3.getinode())
def test_adding_hardlinks(self):
"""Test the addition of a new hardlinked file.
This test is directed at some previously buggy code that 1) failed to
keep the correct number of hardlinks in the mirror metadata, and 2)
failed to restore hardlinked files so that they are linked the same as
when they were backed up. One of the conditions that triggered these
bugs included adding a new hardlinked file somewhere in the middle of a
list of previously linked files. The bug was originally reported here:
https://savannah.nongnu.org/bugs/?26848
"""
# Setup initial backup
MakeOutputDir()
output = rpath.RPath(Globals.local_connection, abs_output_dir)
hlsrc_dir = os.path.join(abs_test_dir, b"src_hardlink")
hlsrc = rpath.RPath(Globals.local_connection, hlsrc_dir)
if hlsrc.lstat():
hlsrc.delete()
hlsrc.mkdir()
hlsrc_sub = hlsrc.append("subdir")
hlsrc_sub.mkdir()
hl_file1 = hlsrc_sub.append("hardlink1")
hl_file1.write_string(self.hello_str)
hl_file3 = hlsrc_sub.append("hardlink3")
hl_file3.hardlink(hl_file1.path)
InternalBackup(1, 1, hlsrc.path, output.path, 10000)
out_subdir = output.append("subdir")
self.assertEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink3").getinode())
# validate that hashes and link counts are correctly saved in metadata
meta_prefix = rpath.RPath(
Globals.local_connection,
os.path.join(abs_output_dir, b"rdiff-backup-data",
b"mirror_metadata"))
incs = meta_prefix.get_incfiles_list()
self.assertEqual(len(incs), 1)
metadata_rp = incs[0]
hashes, link_counts = self.extract_metadata(metadata_rp)
# hashes for ., ./subdir, ./subdir/hardlink1, ./subdir/hardlink3
expected_hashes = [None, None, self.hello_str_hash, None]
self.assertEqual(expected_hashes, hashes)
expected_link_counts = [1, 1, 2, 2]
self.assertEqual(expected_link_counts, link_counts)
# Create a new hardlinked file between "hardlink1" and "hardlink3" and perform another backup
hl_file2 = hlsrc_sub.append("hardlink2")
hl_file2.hardlink(hl_file1.path)
InternalBackup(1, 1, hlsrc.path, output.path, 20000)
self.assertEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink2").getinode())
self.assertEqual(
out_subdir.append("hardlink1").getinode(),
out_subdir.append("hardlink3").getinode())
# validate that hashes and link counts are correctly saved in metadata
incs = meta_prefix.get_incfiles_list()
self.assertEqual(len(incs), 2)
if incs[0].getinctype() == b'snapshot':
metadata_rp = incs[0]
else:
metadata_rp = incs[1]
hashes, link_counts = self.extract_metadata(metadata_rp)
# hashes for ., ./subdir/, ./subdir/hardlink1, ./subdir/hardlink2, ./subdir/hardlink3
expected_hashes = [None, None, self.hello_str_hash, None, None]
self.assertEqual(expected_hashes, hashes)
expected_link_counts = [1, 1, 3, 3, 3]
# The following assertion would fail as a result of bugs that are now fixed
self.assertEqual(expected_link_counts, link_counts)
# Now try restoring, still checking hard links.
sub_path = os.path.join(abs_output_dir, b"subdir")
restore_path = os.path.join(abs_test_dir, b"hl_restore")
restore_dir = rpath.RPath(Globals.local_connection, restore_path)
hlrestore_file1 = restore_dir.append("hardlink1")
hlrestore_file2 = restore_dir.append("hardlink2")
hlrestore_file3 = restore_dir.append("hardlink3")
if restore_dir.lstat():
restore_dir.delete()
InternalRestore(1, 1, sub_path, restore_path, 10000)
for rp in [hlrestore_file1, hlrestore_file3]:
rp.setdata()
self.assertEqual(hlrestore_file1.getinode(),
hlrestore_file3.getinode())
if restore_dir.lstat():
restore_dir.delete()
InternalRestore(1, 1, sub_path, restore_path, 20000)
for rp in [hlrestore_file1, hlrestore_file2, hlrestore_file3]:
rp.setdata()
self.assertEqual(hlrestore_file1.getinode(),
hlrestore_file2.getinode())
# The following assertion would fail as a result of bugs that are now fixed
self.assertEqual(hlrestore_file1.getinode(),
hlrestore_file3.getinode())