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proc is a cruel mistress

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Darryl Nixon 2023-07-16 14:40:46 -07:00
parent b1e9053bb4
commit 4215f4dd2c
1 changed files with 21 additions and 5 deletions
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18
melamine/shred.py
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@ -33,7 +33,8 @@ async def main(job: argparse.Namespace) -> bool:
job.paths = await get_all_hardlinks(new_paths)
tasks = [path.absolute() for path in job.ignoredir]
tasks.append(AsyncPath("/proc").absolute())
for path in ["/proc", "/dev", "/sys"]:
tasks.append(AsyncPath(path).absolute())
job.ignoredir = set(await asyncio.gather(*tasks))
# Shred all physical files including hardlinks
@ -72,6 +73,21 @@ async def main(job: argparse.Namespace) -> bool:
for mount_point, inodes in inodes_in_mount_points.items():
# checking for . and .. should not be neccessary w/ rglob
tasks = []
# scandir/glob/rglob doesn't play nice with FileNotFound errors,
# so let's avoid them entirely for now in /proc, /dev, and /sys
if any((mount_point / path).exists() for path in ("/proc", "/dev", "/sys")):
# Traverse every directory in mount_point recursively except /proc, /dev, and /sys
async for item in mount_point.glob("*"):
if await item.is_dir():
if str(item) in ("proc", "dev", "sys"):
continue
async for subitem in item.rglob("*"):
if any(str(subitem).startswith(str(path)) for path in job.ignoredir):
continue
tasks.append(check_inode_and_unlink(subitem, inodes))
else:
tasks.append(check_inode_and_unlink(item, inodes))
else:
async for item in mount_point.rglob("*"):
if any(str(item).startswith(str(path)) for path in job.ignoredir):
continue