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2023-11-07 r/6976 refactor(tvix/store/fs): move code to get_directory_children helperFlorian Klink1-122/+76
As already established in the two previous CLs, these two pieces of code where doing the same. Move to a get_directory_children helper. Change-Id: Id6876f0c34f3f40a31a22d59a2cdbfef39e2d8de Reviewed-on: https://cl.tvl.fyi/c/depot/+/9980 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-11-07 r/6975 refactor(tvix/store/fs): reduce write lock, return childrenFlorian Klink1-47/+56
Very similar to the previous CL Change-Id: I0df07ddca742b7b9485d48771c8d295dc3aa7136 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9979 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-11-07 r/6974 refactor(tvix/src/fs): reduce write lock, avoid inode_tracker lookupFlorian Klink1-39/+50
Code after this big match block only cares about parent_digest and children, so there's no need to do another inode_tracker.get in there. This also allows removing another if let block, right after, as we don't need to destructure parent_data anymore. Change-Id: I68fbbe3304194670caee5a453722369afa4e77ea Reviewed-on: https://cl.tvl.fyi/c/depot/+/9978 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-11-07 r/6973 refactor(tvix/store/fs): move inode for store_path lookup to helperFlorian Klink1-19/+13
This makes it much harder to keep the read lock around for too long, and the code a bit easier to understand. Change-Id: I7d99c85cadd433cad444b8edd34e2c43d7eaf5a8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9977 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-11-07 r/6972 fix(tvix/castore): B3Digest::{to_vec -> as_slice}edef1-4/+4
Not a single call site actually makes use of the Vec. Change-Id: I6cf31073c9f443d1702a21937a0c3938c2c643b8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9988 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-11-05 r/6958 chore(tvix): add missing clippy attributes & configVincent Ambo1-0/+1
For cases where clippy lints don't apply to us, or something is misfiring, add appropriate configuration. Relates to b/321. Change-Id: I0af453910b4a4112bf685b2a8e9a73de10ec87ea Reviewed-on: https://cl.tvl.fyi/c/depot/+/9965 Reviewed-by: flokli <flokli@flokli.de> Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-11-05 r/6955 chore(tvix): fix trivial clippy lintsVincent Ambo1-1/+1
Relates to b/321. Change-Id: I37284f89b186e469eb432e2bbedb37aa125a6ad4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9961 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de> Autosubmit: tazjin <tazjin@tvl.su>
2023-11-05 r/6951 feat(tvix/store/nar): add read_nar methodFlorian Klink2-0/+338
This adds a function that can ingest a NAR file into a given blob_service and directory_service, returning the root node. Passing around the directory_putter is a bit annoying, but at least for this linear "reading through a NAR" case, we don't need it to be clone or sync. Change-Id: Ia26d596f5dffc6dbd69aa39a82b59bba41685a9c Reviewed-on: https://cl.tvl.fyi/c/depot/+/9915 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-11-05 r/6947 refactor(tvix/store/tests/nar_renderer): use castorepb consistentlyFlorian Klink1-10/+8
Change-Id: I40f33044c838a7cfb9b3665fdea8e70e6886343e Reviewed-on: https://cl.tvl.fyi/c/depot/+/9953 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-11-05 r/6946 feat(tvix/castore): bump [Directory,File]Node size to u64Florian Klink5-11/+11
Having more than 4GiB files is quite possible (think about the NixOS graphical installer, and an uncompressed iso of it). No wire format changes. Change-Id: Ia78a07e4c554e91b93c5b9f8533266e4bd7f22b6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9950 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-10-27 r/6893 refactor(tvix): turn nullary enum variants into unit variantsedef2-7/+7
Change-Id: Iad4f2cb4aa92b5bb29ead6050348a8cd3e7b8632 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9860 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-27 r/6888 refactor(nix-compat/store_path): make digest and name privateedef4-7/+11
Change-Id: I62cbe883afcf3dd0c8d4de0e3b845069eb750c97 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9855 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-27 r/6883 refactor(tvix): condense long bytestringsedef1-4/+1
Change-Id: I3bea0827ec2c8db835334ce378a7bf3a39e9b1a3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9849 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-10-22 r/6870 feat(tvix/store/protos): add CA fieldFlorian Klink2-1/+7
This adds support to represent the `CA` field found in some .narinfo files. As `deriver`, it's also a subfield of the `narinfo` field. Extending nix-compat with a more accessible data structure that can take care of formatting, as well as writing validation functions in Rust + Golang, and integrating it into nar-bridge is something for a followup CL. Change-Id: I71e9c30957bcd03051a491aa54d7baac25b6dd2d Reviewed-on: https://cl.tvl.fyi/c/depot/+/9795 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-22 r/6869 refactor(tvix/store): move deriver field into narinfo submessageFlorian Klink4-16/+21
This information is present in the .narinfo files, it should have gone there. Change-Id: Ib43d0cf30c2795bf1fe77c46646174353ade0458 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9794 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-10-16 r/6826 refactor(tvix/store): clippyFlorian Klink1-1/+1
Change-Id: I31ba268bda21c1f07c63520a269dd62f7b309e99 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9748 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-16 r/6823 refactor(tvix/store/fs): clippyFlorian Klink2-7/+14
Change-Id: I11247e24475f0e49dc22f2d10bf3e1e276737899 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9709 Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI
2023-10-14 r/6810 refactor(tvix/store): Upgrade tokio-listener to get tonic supportConnor Brewster3-134/+9
Tonic support was added to tokio-listener upstream which removes the need for use to have tonic compatibility wrapper types around it. See: https://github.com/vi/tokio-listener/pull/2 Fixes b/311 Change-Id: I04a2dbb3bc3c8bfe9339583c0b46070c7ec97811 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9721 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-10-14 r/6805 feat(tvix/store/protos): add Deriver field to PathInfoFlorian Klink4-1/+48
This uses the newly introduced StorePath message type to add a Deriver field to the PathInfo message. Support for validation is added to both the golang and rust implementation. This includes extending unit tests. Change-Id: Ifc3eb3263fa25b9eec260db354cd74234c40af7e Reviewed-on: https://cl.tvl.fyi/c/depot/+/9647 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-10-14 r/6804 feat(tvix/store/protos): add StorePath messageFlorian Klink1-14/+16
This encodes a store path a bit more concise, which is used in the Deriver field. Change-Id: Ibfb54d3b206917e51970d1d5fe94fcedb901704b Reviewed-on: https://cl.tvl.fyi/c/depot/+/9646 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-10-14 r/6803 refactor(tvix/store/fs): make fetch_directory_inode_data asyncFlorian Klink1-30/+32
To make this easier, move it outside of TvixStoreFs, and accept the DirectoryService as a function argument, so we don't need to worry about the lifetime of self. This also aligns with how we spawn async tasks inside the rest of TvixStoreFs. Change-Id: I3b95072209d32039f05aed122240f2d6db7ad172 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9713 Reviewed-by: Connor Brewster <cbrewster@hey.com> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-14 r/6802 refactor(tvix/*store): helper for channel creation from urlFlorian Klink1-41/+4
This moves the repetitive code to parse a URL and create a channel connected to it into `tvix_castore::channel::from_url`. Part of b/308 Change-Id: Idd342cd71cad5e78a9b258b38c1b227993e75310 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9707 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-14 r/6801 refactor(tvix/*store): reorganize from_urlFlorian Klink1-14/+9
Move the channel creation depending on the string-based URL into its own block. Change-Id: I546b769acd2296b548eb966b62c495f910266df5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9706 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-10-14 r/6800 refactor(tvix/*store): remove some grpc_client let bindingsFlorian Klink1-20/+17
We had to have these all while the traits where sync, and there was a lot of spawning and moving. Most of this can now be removed in favor of some inline `.clone()`. Change-Id: Id5466c32a403100bc3347866b3172e06a792e311 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9705 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-12 r/6794 refactor(tvix/castore): factor out node checksFlorian Klink2-34/+35
Implement `validate()` on `node::Node`, and call it from PathInfo's validate() too. Node-related errors are moved to a ValidateNodeError error type. This additionally adds some more validations for symlink targets (they must not be empty, and not contain null bytes). Change-Id: Ib9b89f1c9c795e868a1533281239bc8a36d97c5d Reviewed-on: https://cl.tvl.fyi/c/depot/+/9715 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: edef <edef@edef.eu>
2023-10-12 r/6793 refactor(tvix/store/fs): use while let statementFlorian Klink1-22/+16
Suggested by clippy. Change-Id: I686b1abcb40fab42017972a3f814fae29fa70c25 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9712 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI
2023-10-12 r/6792 refactor(tvix/store/proto): merge two match statements into oneFlorian Klink1-29/+23
Change-Id: I3daca008dff5527169f5916f4845234e8f3263cd Reviewed-on: https://cl.tvl.fyi/c/depot/+/9711 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI
2023-10-12 r/6791 refactor(tvix/store): clippy lintFlorian Klink4-4/+4
Change-Id: I03aa5c6cb0167ff6cb7312d81d1e43116fcb6d70 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9710 Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2023-10-12 r/6788 fix(tvix/store/fs): fix typoedef1-3/+3
Change-Id: I132987dda1073dcc0b30e50e26682d6c8724d988 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9689 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-11 r/6786 feat(tvix/store): validate nar_sha256Florian Klink2-2/+26
Change-Id: I4c4dcdb75ea7748f2ab01a0bab218596b90b7b58 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9648 Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI
2023-10-10 r/6769 feat(tvix/store): use tvix_compat::nar::writer::asyncedef2-67/+98
Change-Id: Iad36872244df6f2225a2884f6b20cacd8f918b31 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9619 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de> Autosubmit: edef <edef@edef.eu>
2023-10-08 r/6743 test(tvix/store): use tokio-retry for exp backoffFlorian Klink1-17/+15
Rather than using this loop, use exponential backoff while waiting for the socket path to be created. Change-Id: I3056b1525784cd712b1d81f84876c9ca0be10dc6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9569 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-10-08 r/6741 refactor(tvix/store): simplify test_valid_unix_path_ping_pongFlorian Klink1-43/+31
We don't need to spawn two tokio runtimes anymore, and can do the URL parsing at once, too. Change-Id: I7885a894bb1250cd087d4e1893e3e73b631331da Reviewed-on: https://cl.tvl.fyi/c/depot/+/9567 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-08 r/6738 docs(tvix/store/bin): drop outdated TODOFlorian Klink1-1/+0
We already use store_path::build_nar_based_store_path as a helper function down there. Change-Id: I46842bb0a2f4cd5de7dcfc3c4b6aae399618667a Reviewed-on: https://cl.tvl.fyi/c/depot/+/9571 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-08 r/6726 feat(tvix/store/listener): implement connect_info()Florian Klink1-3/+19
For Unix and TCP streams, we can actually give more info than just (). Change-Id: I80ca261b9e7a880389ec2029ea5893180314f0b2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9561 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-05 r/6715 refactor(tvix/store/proto): use NamedNode traitFlorian Klink1-31/+28
This saves us writing the name parsing code three times. We can also delay parsing until we did other (cheaper) checks. Change-Id: I1abe3f20dba4215b38839cf7466297e028d64656 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9548 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com> Autosubmit: flokli <flokli@flokli.de>
2023-10-05 r/6707 test(tvix/store/pathinfo): add more tests for referencesFlorian Klink2-42/+101
This should cover all error cases produced. Change-Id: If31816d9b087551d86d7913df55df8f9f44bb554 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9546 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI
2023-10-05 r/6706 feat(tvix/store): add validation for referencesFlorian Klink2-6/+60
This validates the size of reference digests in the PathInfo message, as well as inside the narinfo submessage. If narinfo is set, they need to parse to StorePath, and have the same digest there as in the PathInfo message. `proto::tests::pathinfo::validate_references` needed to be updated, because we actually did not populate the proper references before. Change-Id: I9545b2487aab9fe0d229c26aceba5ddc5e6daafd Reviewed-on: https://cl.tvl.fyi/c/depot/+/9545 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI
2023-10-05 r/6705 refactor(tvix/store): mv *Err*::Invalid{Node,}DigestLenFlorian Klink2-7/+7
There's other digests in the PathInfo structure, that also might have wrong digest lengths. Rename this to give some room for them, and update the error message a bit as we go. Change-Id: I06562664721156e658f2ed14ba1de907377d284b Reviewed-on: https://cl.tvl.fyi/c/depot/+/9543 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: edef <edef@edef.eu>
2023-10-02 r/6687 fix(tvix/store): Fix FUSE support on MacOSBrian Olsen4-12/+32
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>
2023-10-02 r/6686 fix(tvix/store): FuseDaemon unmount is blocking async runtimeBrian Olsen1-1/+1
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>
2023-09-26 r/6660 chore(tvix/[ca]store): allow building without tonic-reflectionFlorian Klink2-4/+4
- 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>
2023-09-25 r/6653 feat(tvix/store): Support listening on UNIX domain socketsConnor Brewster3-1/+120
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>
2023-09-24 r/6642 feat(tvix/store/fs): Add support for virtiofs backendConnor Brewster3-0/+294
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>
2023-09-22 r/6629 refactor(tvix): move castore into tvix-castore crateFlorian Klink46-4976/+237
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>
2023-09-22 r/6628 docs(tvix/castore): rename traverse_to -> descend_toFlorian Klink2-17/+13
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>
2023-09-22 r/6625 docs(tvix/store/pathinfosvc): fix copypasta errorFlorian Klink1-1/+0
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
2023-09-21 r/6623 refactor(tvix/store): Asyncify PathInfoService and DirectoryServiceConnor Brewster19-692/+726
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>
2023-09-20 r/6622 refactor(tvix/store/fs): Separate FUSE and filesystem codeConnor Brewster8-130/+136
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>
2023-09-20 r/6621 refactor(tvix/store/fuse): Switch from fuser to fuse-backend-rsConnor Brewster6-342/+489
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>
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