This partially fixes b/312 and gets FUSE to work again on MacOS.
It is mostly small type changes and an update to fuse-backend-rs because
upstream currently doesn't work with MacFuse. It also sets the default
FUSE thread count on MacOS to 1 because otherwise the mount command will
hang when shutting down as only one thread gets ENODEV and all the others
just keep blocking.
Change-Id: Ifb3c4268caf296c487049c1dc4618acb32497f44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9490
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Reviewed-by: flokli <flokli@flokli.de>
The unmount method in FuseDaemon calls join on a bunch of threads and that is
a blocking call but it is called from an async context in the tvix-store
binary.
This change wraps the call to unmount in a spawn_blocking.
Change-Id: If89183b4a3f890874e75f5faf90cd24cb18da1e1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9489
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
This call was renamed to `Read` a while ago, but I forgot to update
the README.
Change-Id: Ibcb97fe2520a5e9bb8444ec1adade6890dda4a91
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9476
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Curently both fuse and virtiofs features fail to build on Darwin.
Disable them for now until fixed.
Change-Id: Ic99fa5e3ebec8a7072ba884101a5c18652ed409c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9473
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
- rename the feature to `tonic-reflection` in both tvix-store and tvix-
castore.
- set it to disabled in tvix-castore by default
- enable it in tvix-store, and pull in tvix-castore with the feature
enabled.
Change-Id: Ie22833d85569502cae55812f6eeb17a9c15b9e2c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9472
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
It's in no release yet, but this is the current rev in master.
Change-Id: I9e4bc2fde26e85c4182bd66b3e566c2d957072ed
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9469
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
This adds support for listening on UNIX domain sockets via the
tokio-listener crate. The crate will automatically determine whether to
start a TCP or UNIX domain socket server based on the listen address.
Unfortunately, it's not compatible with tonic right out of the box so I
added some wrapper types to implement the necessary traits to make
things work. We should investigate upstreaming a `tonic` option to the
tokio-listener crate which implements the relevant `tonic` traits.
Example:
```
$ tvix-store daemon -l /run/tvix-store.sock
INFO tvix_store: tvix-store listening on /run/tvix-store.sock
$ tvix-store mount -l /mnt/tvix --blob-service-addr grpc+unix:///run/tvix-store.sock --directory-service-addr grpc+unix:///run/tvix-store.sock --path-info-service-addr grpc+unix:///run/tvix-store.sock
$ ls /mnt/tvix
```
Change-Id: I91c4a4b0c5a177b3b90e6c01a4e5d263130e6bdb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9429
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
This adds a virtiofs daemon implementation which hooks into the existing
tvix-store filesystem implementation that is used for FUSE.
This allows adding the filesystem to a microvm without having to set up
FUSE inside the guest.
Change-Id: If80c36c9657f2289853e8d9a364bf4f1f7b7559c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9344
Autosubmit: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
This couldn't be enabled before until go get was able to fetch the
modules again.
Change-Id: I82db7d22e497661ea2a0c8a45c0c865fcc0a1f18
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9406
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
This splits the pure content-addressed layers from tvix-store into a
`castore` crate, and only leaves PathInfo related things, as well as the
CLI entrypoint in the tvix-store crate.
Notable changes:
- `fixtures` and `utils` had to be moved out of the `test` cfg, so they
can be imported from tvix-store.
- Some ad-hoc fixtures in the test were moved to proper fixtures in the
same step.
- The protos are now created by a (more static) recipe in the protos/
directory.
The (now two) golang targets are commented out, as it's not possible to
update them properly in the same CL. This will be done by a followup CL
once this is merged (and whitby deployed)
Bug: https://b.tvl.fyi/issues/301
Change-Id: I8d675d4bf1fb697eb7d479747c1b1e3635718107
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9370
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
With the move of this code out into castore it has become apparent this
is a general descent inside the castore. Concerns like making sure the
whole Directory closure has been fetched/is fetched initially is nothing
this layer needs to worry about. We can handle this during substitution
of a new PathInfo, once there's store composition.
Closes b/270.
Change-Id: I661ed08e54bc81478e032cfb9abeb23e5b337fbe
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9373
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
This is not a simple get and put returning digest.
You currently can get by output hash, and a put gives you back the
(possibly modified) PathInfo message.
Change-Id: I43174d87a764417b8620c4d5bdac058cc25b0373
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9371
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
We've decided to asyncify all of the services to reduce some of the
pains going back and for between sync<->async. The end goal will be for
all the tvix-store internals to be async and then expose a sync
interface for things like tvix eval io.
Change-Id: I97c71f8db1d05a38bd8f625df5087d565705d52d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9369
Autosubmit: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
In prepration for adding virtiofs support, I thought it would make sense
to split out the filesystem implementation from FUSE itself.
The `fs` module holds the tvix-store filesystem implemetation and the
`fuse` module holds the code to spawn a FUSE daemon backed by multiple
threads.
Change-Id: I8c58447b8c3aa016a613068f8e7ec166554e237c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9343
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Autosubmit: Connor Brewster <cbrewster@hey.com>
This switches the FUSE implementation from fuser to fuse-backend-rs.
fuse-backend-rs is designed to work with both FUSE and virtiofs.
Virtiofs support will make it possible to plug the tvix-store into a
microvm and have `/nix/store` access without having to setup FUSE inside
the guest.
Additionally fuse-backend-rs has nice support for running multiple FUSE
threads and has some async support.
The goal of this commit is to mechanically switch over to
fuse-backend-rs with minimal changes. I did have to add some locks here
and there because fuse-backend-rs uses `&self` on all methods whereas
fuser uses `&mut self`. `&self` is required for concurrent access to the
FUSE server, so this makes sense.
We can consider switching to concurrent maps and use some other
techniques to reduce lock contention and critical section size.
Issue: https://b.tvl.fyi/issues/305
Change-Id: Icde5a58c6eef98f8984c1e04e980b756dfb76b47
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9341
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
This wasn't removed yet, and no code is using/populating it so far.
It's confusing, let's update it to the state of things now, and re-
introduce it once we get there.
Change-Id: I68f5ba17a8eee604d8ccd82749da7c8be094cb99
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9351
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
We were blindly returning 0o444 for all regular files, but regular files
with executable bit need to be 0o555.
This wasn't spotted because stat'ing executable files was not part of
the test suite, it's now added.
Change-Id: I04c69784053e7e43d838c01bb288f2df48f40b4e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9345
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
We previously kept the trait of a BlobService sync.
This however had some annoying consequences:
- It became more and more complicated to track when we're in a context
with an async runtime in the context or not, producing bugs like
https://b.tvl.fyi/issues/304
- The sync trait shielded away async clients from async worloads,
requiring manual block_on code inside the gRPC client code, and
spawn_blocking calls in consumers of the trait, even if they were
async (like the gRPC server)
- We had to write our own custom glue code (SyncReadIntoAsyncRead)
to convert a sync io::Read into a tokio::io::AsyncRead, which already
existed in tokio internally, but upstream ia hesitant to expose.
This now makes the BlobService trait async (via the async_trait macro,
like we already do in various gRPC parts), and replaces the sync readers
and writers with their async counterparts.
Tests interacting with a BlobService now need to have an async runtime
available, the easiest way for this is to mark the test functions
with the tokio::test macro, allowing us to directly .await in the test
function.
In places where we don't have an async runtime available from context
(like tvix-cli), we can pass one down explicitly.
Now that we don't provide a sync interface anymore, the (sync) FUSE
library now holds a pointer to a tokio runtime handle, and needs to at
least have 2 threads available when talking to a blob service (which is
why some of the tests now use the multi_thread flavor).
The FUSE tests got a bit more verbose, as we couldn't use the
setup_and_mount function accepting a callback anymore. We can hopefully
move some of the test fixture setup to rstest in the future to make this
less repetitive.
Co-Authored-By: Connor Brewster <cbrewster@hey.com>
Change-Id: Ia0501b606e32c852d0108de9c9016b21c94a3c05
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9329
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
WrongSorting(Vec<u8>) actually encodes the name of a node, so if we can,
we want this to display it as a string (and fall back to the base64
encoding if we can't).
Before:
> rpc error: code = InvalidArgument desc = directory b3:yfwNlpPm8MkrRvshGHfgMtKLoSDtX2pKliVuVWmUt5g= failed validation: [108, 111, 99, 97, 108, 101] is not sorted
After:
> rpc error: code = InvalidArgument desc = directory b3:yfwNlpPm8MkrRvshGHfgMtKLoSDtX2pKliVuVWmUt5g= failed validation: locale is not sorted
Change-Id: I68420c53a89cb1aa96e4bdce414366cebcb7915f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9350
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
This imports the docs folder into the tvix store, and ensures it comes
up with the same store path as Nix.
While we validate hashes in general through tvix-cli output path checks
already, it doesn't include the tvix-store CLI itself.
See https://cl.tvl.fyi/c/depot/+/9329/comment/339f0720_524f0104/
for context.
Change-Id: I239ce5b6a07cb962b242142ab716693359b8674c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9338
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
This allows comparing the output in an integration test.
Change-Id: I8bb2254e18e90005a4f1b30fd47ef69642e3732e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9337
Tested-by: BuildkiteCI
Reviewed-by: Adam Joseph <adam@westernsemico.com>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
This leaves some space in stdout to provide actual meaningful output.
Also, rename print_node to log_node because that's what it does, it's
using the logger to log out more detailed info.
Change-Id: Ic64a6330dbfcdc63eb4198067a5c5e47b841b9a5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9336
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Reviewed-by: Adam Joseph <adam@westernsemico.com>
We were asserting absolute_offset > self.pos, but that's not true for
both being zero.
Ramp up the tracing bits a bit, so we actually can see this in the debug
logs.
Change-Id: I21693bcafab227549b19cd6f1215d2f8dee77ecc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9292
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
The underlying protos were changed to return `[]byte` instead of `string`.
Change-Id: I5d3e5d8de0ed7200325f7ab0d62e3c10d8eb1b7d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9285
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
This makes the inside code a bit less verbose.
I wasn't able to describe the type of the async move closure itself,
which would allow us to remove the JoinHandle<_> type annotation
entirely.
Change-Id: I06193982a0c7010bd72d3ffa4f760bea1b097632
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9268
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
This enables the tokio `signal` feature, and registers a ctrl_c signal
handler, which will use the unmount handle to unmount in case a ctrl-c
signal is received.
This avoids having disconnected mountpoints when Ctrl-C'ing a
`tvix-store mount` invocation.
In case the filesystem is unmounted externally (via `umount /path/to/
mountpoint`), the future is waiting for the signal is never resolved and
the task is stopped.
Change-Id: I149f705a6cb50188177f2a6c6a5fcd77218e2a3f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9218
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This provides an additional configuration flag to the tvix-store mount
subcommand, and logic in the fuse module to request listing for the
root of the mountpoint.
Change-Id: I05a8bc11f7991b574696f27a30afe0f4e718a58c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9217
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: adisbladis <adisbladis@gmail.com>
Tested-by: BuildkiteCI
This provides an additional method in the PathInfoService trait, as
well as an RPC method on the gRPC layer to list all PathInfo objects in
a PathInfoService.
Change-Id: I7378f6bbd334bd6ac4e9be92505bd099a1c2b19a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9216
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
We don't need to explicitly describe the type of the task itself,
describing the return type of the async closure is sufficient.
Also, use io::Result<_> instead of Result<_, io::Error>.
Change-Id: I9ab3f990eb49929b0aea335b2bb07da392ab631f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9267
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
https://github.com/BurntSushi/walkdir/pull/170 got merged, meaning we
don't need to keep our own logic in here anymore.
Our test cases already cover this.
Change-Id: Ied3043ee651c8aafa10271c1e1ca5d460fb6c0b8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9269
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
This trait is eval-specific, there's no point in dealing with these
things in tvix-store.
This implements the EvalIO interface for a Tvix store.
The proper place for this glue code (for now) is tvix-cli, which knows
about both tvix-store and tvix-eval.
There's one annoyance with this move: The `tvix-store import` subcommand
previously also used the TvixStoreIO implementation (because it
conveniently did what we wanted).
Some of this code had to be duplicated, mostly logic to calculate the
NAR-based output path and create the PathInfo object.
Some, but potentially more of this can be extracted into helper
functions in a shared crate, and then be used from both TvixStoreIO in
tvix-cli as well as the tvix-store CLI entrypoint.
Change-Id: Ia7515e83c1b54f95baf810fbd8414c5521382d40
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9212
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Don't repeat the name of the method in the description, don't repeat
things already described in request message comments.
Change-Id: I180e4792577419050947eea8fea7043861aba463
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9213
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
This returns a node with a new name.
Change-Id: Iebcab537f8dd63d826b9841d4d0181fcb941afdd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9211
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Since the refactor to use URIs for all three services, this actually
does talk to a daemon by default.
Change-Id: Ied296772b77eef514bfcae0a9dfc50f848a1c2f3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9210
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
There was a NixHash::new() before, which didn't perform any validation
of the digest length. We had some length validation when parsing nix
hashes or SRI hashes, but some places didn't perform validation and/or
constructed the struct directly.
Replace NixHash::new() with a
`impl TryFrom<(HashAlgo, Vec<u8>)> for NixHash`, which does do this
validation, and update constructing code to use that, rather than
populating structs directly. In some rare cases where we're sure the
digest length is correct we still populate the struct manually.
Fixes b/291.
Change-Id: I7a323c5b18d94de0ec15e391b3e7586df42f4229
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9109
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This allows pinning the name of the sparse tree derivation, which
stops the continous rebuilding of tvix-store-proto dependents.
I've opted to let the function take an attribute set instead and
refactored the call sites appropriately.
Change-Id: I3e57785094b1adbfffa24caf9f1c3384844fa200
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8965
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
This will save us some copies, because a clone will simply create an
additional pointer to the same data.
Change-Id: I017a5d6b4c85a861b5541ebad2858ad4fbf8e8fa
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8978
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Some paths might use names that are not valid UTF-8. We should be able
to represent them.
We don't actually need to touch the PathInfo structures, as they need to
represent StorePaths, which come with their own harder restrictions,
which can't encode non-UTF8 data.
While this doesn't change any of the wire format of the gRPC messages,
it does however change the interface of tvix_eval::EvalIO - its
read_dir() method does now return a list of Vec<u8>, rather than
SmolStr. Maybe this should be OsString instead?
Change-Id: I821016d9a58ec441ee081b0b9f01c9240723af0b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8974
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
This "reverts" commit 9f600de226 (the
initial revert of f5e291cf83).
Now with BlobService returning a BlobReader that implements io::Seek, we
can actually just call blob_reader.seek(io::SeekFrom::Start(offset as
u64)).
This means, we currently will fail to seek backwards inside a file.
Change-Id: I9c19448df6831a3537252f99210374f2126ecfc0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8886
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
For memory and sled, it's trivial, as we already have a Cursor<Vec<u8>>.
For gRPC, we simply reject going backwards, and skip n bytes for now.
Once the gRPC protocol gets support for offsets and verified streaming,
this can be improved.
Change-Id: I734066a514aed287ea3db64bfb1680911ac1eeb0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8885
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
The primary constructor for this is now from_bytes, from_string is
simply calling .as_bytes() on the string, passing it along.
The InvalidName error now contains a Vec<u8>, to encode the invalid name
(which might not be a string anymore).
from_absolute_path now accepts a &[u8] (even though we might want to
make this a OSString of some sort).
StorePath::validate_name has been degraded to a pub(crate) function.
It's still used in src/derivation, even though it probably shouldn't at
all - that cleanup is left for cl/8412 though.
Change-Id: I6b4e62a6fa5c4bec13b535279e73444f0b83ad35
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8973
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
This being a nested error makes things more complicated than necessary.
Also, this caused BuildStorePathError to only hold NameError,
so refactor these utility functions to either return Error, or
BuildStorePathError.
Change-Id: I046fb403780cc5135df8b8833a291fc2a90fd913
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8972
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
