mirror of
https://github.com/facebook/sapling.git
synced 2024-10-05 14:28:17 +03:00
f50d615c5c
Summary: This has been on for a while, let's always turn it on. Reviewed By: genevievehelsel Differential Revision: D40454717 fbshipit-source-id: 94df80b5fd6b778b976d55f56b1bb051c13b7bda
104 lines
3.7 KiB
Python
104 lines
3.7 KiB
Python
#!/usr/bin/env python3
|
|
# Copyright (c) Meta Platforms, Inc. and affiliates.
|
|
#
|
|
# This software may be used and distributed according to the terms of the
|
|
# GNU General Public License version 2.
|
|
|
|
import os
|
|
import sys
|
|
from typing import Dict
|
|
|
|
from .lib import testcase
|
|
|
|
|
|
@testcase.eden_repo_test
|
|
class PersistenceTest(testcase.EdenRepoTest):
|
|
def populate_repo(self) -> None:
|
|
self.repo.write_file("file_in_root", "contents1")
|
|
self.repo.write_file("subdir/file_in_subdir", "contents2")
|
|
self.repo.write_file("subdir2/file_in_subdir2", "contents3")
|
|
self.repo.commit("Initial commit.")
|
|
|
|
# These tests restart Eden and expect data to have persisted.
|
|
def select_storage_engine(self) -> str:
|
|
return "sqlite"
|
|
|
|
def edenfs_logging_settings(self) -> Dict[str, str]:
|
|
return {"eden.strace": "DBG7", "eden.fs.fuse": "DBG7"}
|
|
|
|
# It is not a strict requirement that Eden always remember inode numbers
|
|
# across restart -- we could theoretically drop them whenever we know it's
|
|
# not sensible for a program to remember them across whatever event.
|
|
#
|
|
# However, today we remember metadata keyed on inode, and thus Eden does,
|
|
# in practice remember them across restarts.
|
|
def test_preserves_inode_numbers_across_restarts(self) -> None:
|
|
before1 = os.lstat(os.path.join(self.mount, "subdir/file_in_subdir"))
|
|
before2 = os.lstat(os.path.join(self.mount, "subdir2/file_in_subdir2"))
|
|
|
|
self.eden.shutdown()
|
|
self.eden.start()
|
|
|
|
# stat in reverse order
|
|
after2 = os.lstat(os.path.join(self.mount, "subdir2/file_in_subdir2"))
|
|
after1 = os.lstat(os.path.join(self.mount, "subdir/file_in_subdir"))
|
|
|
|
self.assertEqual(before1.st_ino, after1.st_ino)
|
|
self.assertEqual(before2.st_ino, after2.st_ino)
|
|
|
|
def test_preserves_nonmaterialized_inode_metadata(self) -> None:
|
|
inode_paths = [
|
|
"file_in_root",
|
|
"subdir",
|
|
"subdir/file_in_subdir", # we care about trees too
|
|
]
|
|
|
|
old_stats = [os.lstat(os.path.join(self.mount, path)) for path in inode_paths]
|
|
|
|
self.eden.shutdown()
|
|
self.eden.start()
|
|
|
|
new_stats = [os.lstat(os.path.join(self.mount, path)) for path in inode_paths]
|
|
|
|
for (path, old_stat, new_stat) in zip(inode_paths, old_stats, new_stats):
|
|
self.assertEqual(
|
|
old_stat.st_ino,
|
|
new_stat.st_ino,
|
|
f"inode numbers must line up for path {path}",
|
|
)
|
|
self.assertEqual(
|
|
old_stat.st_mode, new_stat.st_mode, f"mode must line up for path {path}"
|
|
)
|
|
# On Windows, fsck will scan all files in the working copy, thus
|
|
# the atime will also change.
|
|
if sys.platform != "win32":
|
|
self.assertEqual(
|
|
old_stat.st_atime,
|
|
new_stat.st_atime,
|
|
f"atime must line up for path {path}",
|
|
)
|
|
self.assertEqual(
|
|
old_stat.st_mtime,
|
|
new_stat.st_mtime,
|
|
f"mtime must line up for path {path}",
|
|
)
|
|
self.assertEqual(
|
|
old_stat.st_ctime,
|
|
new_stat.st_ctime,
|
|
f"ctime must line up for path {path}",
|
|
)
|
|
|
|
def test_does_not_reuse_inode_numbers_after_cold_restart(self) -> None:
|
|
newdir1 = os.path.join(self.mount, "subdir", "newdir1")
|
|
os.mkdir(newdir1)
|
|
newdir_stat1 = os.lstat(newdir1)
|
|
|
|
self.eden.shutdown()
|
|
self.eden.start()
|
|
|
|
newdir2 = os.path.join(self.mount, "subdir", "newdir2")
|
|
os.mkdir(newdir2)
|
|
newdir_stat2 = os.lstat(newdir2)
|
|
|
|
self.assertGreater(newdir_stat2.st_ino, newdir_stat1.st_ino)
|