We separate ingesting the trailer block into a Future of its own,
parametrised on the specifics of the trailer pattern.
This is intended to be used for future work on an async NAR reader,
which needs to read a terminating parenthesis as well as the regular
padding.
Thanks to @griff for suggesting separating the ingestion into its own
Future.
Change-Id: I36c2503baa67937046a63e9bf0cfc38201394025
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11522
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Pin<&mut T> is DerefMut when T: Unpin, so we don't actually need to
explicitly call get_mut.
Change-Id: Iaa312ec49c87100010e09c94f319e57e31da0cd5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11520
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
We don't use it in the reader anymore.
Change-Id: I98fe204a747711464e9e7ca17df06fa9854eb344
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11519
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
We now *never* return the final bytes until we've read the padding
in full, so read_exact is safe to use.
This is implemented by TrailerReader, which splits the phases of
reading (and validating) the final 8-byte block, and providing
the contained payload bytes to the caller.
Change-Id: I0d05946a8af9c260a18d71d2b763ba7a68b3c27f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11518
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
We already require R: Unpin in the constructor, so there's not much use
to pin projection.
Change-Id: Ia7bf734dc3aa86ffa6d1d5de778939baa9676bb9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11516
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
This is semantically a RangeInclusive, since we can only have
0..=u64::MAX at most, and monomorphising on the bounds doesn't
buy us anything.
Change-Id: Ib601d7fd77d703d6c8c5ec27ac9e67bb122ce1c0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11515
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Adds debug assertions to ensure that the reader's variants are upheld.
If any of the following happens, then the currently in use reader must
be abandoned:
* A directory or file reader encounters an error
* A directory or file reader is dropped before being fully read from
Additionally, a directory reader must not be read from again after it
has returned None.
These checks are only used when debug_assertions are on, so vanish in
release mode.
Resolves two TODO items added by edef
Change-Id: I27bd9643a632798db5351957506c166b9bd5ca4e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11508
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: edef <edef@edef.eu>
Autosubmit: Aria Shrimpton <me@aria.rip>
Tested-by: BuildkiteCI
This contains a rough collection of ideas on the TODO list, trying to
keep track of it somewhere.
Change-Id: Ifc5b0cf9f7ac38f7a8e56515882bdf70e349544b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11512
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: picnoir picnoir <picnoir@alternativebit.fr>
This is a ReadBuf, not a BufRead.
Change-Id: Ie80e894f4b24b77cdd60409ddfaa66dae0ffeec9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11511
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: edef <edef@edef.eu>
Tested-by: BuildkiteCI
The `Error` enum for the `imports` crate has both filesystem and archive
specific errors and was starting to get messy.
This adds a separate `Error` enum for archive-specific errors and then
keeps a single `Archive` variant in the top-level import `Error` for all
archive errors.
Change-Id: I4cd0746c864e5ec50b1aa68c0630ef9cd05176c7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11498
Tested-by: BuildkiteCI
Autosubmit: Connor Brewster <cbrewster@hey.com>
Reviewed-by: flokli <flokli@flokli.de>
Ingesting tarballs with a lot of small files is very slow because of the
round trip time to the `BlobService`. To mitigate this, small blobs can
be buffered into memory and uploaded concurrently in the background.
Change-Id: I3376d11bb941ae35377a089b96849294c9c139e6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11497
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Autosubmit: Connor Brewster <cbrewster@hey.com>
With `ingest_entries` being more generalized, we can now use it for
ingesting the directory entries generated from tarballs.
Change-Id: Ie1f7a915c456045762e05fcc9af45771f121eb43
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11489
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
This prevents the nix build copying the target/ dir into the store
whenever this is built through Nix.
Change-Id: I397228fd8e2e3265ed87d3400fe927bc505da090
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11496
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: picnoir picnoir <picnoir@alternativebit.fr>
Doing the fetch comes up with the root node, but we still need to
descend from there to the desired subpath.
Move things around to ensure the fetch case also only sets root_node.
This logic should probably be moved into smaller, easier to consume
functions.
Change-Id: I6ab9317df794f53d2504029bbc77859e89fef1ed
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11507
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
We also need to rename the node in case it's a directory or symlink at
the root.
Change-Id: I6e9957200f65991645ae3e1755b943200453dfd5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11506
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Nix supports file:// - URLs for `fetchurl` and `fetchTarball`.
Convert the enums and function arguments to hold a URL type.
reqwest::Url is a re-export of the url crate, but they don't re-export
the parsing errors, and as we want to hold these in our Error types, add
it to Cargo.toml explicitly.
The Fetcher::download function now checks on the scheme, and either
opens the file locally, or does do a HTTP request as before.
Fetch gets its custom debug impl, removing potentially sensitive
username and password out of URLs.
Change-Id: I777db1fe487370e822cbfec4624034aca5e08045
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11504
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Have fetcher builtins call queue_fetch() whenever they don't need to
fetch something immediately, and teach TvixStoreIO::store_path_to_node
on how to look up (and call ingest_and persist on our Fetcher).
Change-Id: Id4bd9d639fac9e4bee20c0b1c584148740b15c2f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11501
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
We actually want to delay fetching until we actually need the file. A
simple evaluation asking for `.outPath` or `.drvPath` should work even
in a pure offline environment.
Before this CL, the fetching logic was quite distributed between
tvix_store_io, and builtins/fetchers.rs.
Rather than having various functions and conversions between structs,
describe a Fetch as an enum type, with the fields describing the fetch.
Define a store_path() function on top of `Fetch` which can be used to
ask for the calculated store path (if the digest has been provided
upfront).
Have a `Fetcher` struct, and give it a `fetch_and_persist` function,
taking a `Fetch` as well as a desired name, and have it deal with all
the logic of persisting the PathInfos. It also returns a StorePathRef,
similar to the `.store_path()` method on a `Fetch` struct.
In a followup CL, we can extend KnownPaths to track fetches AND
derivations, and then use `Fetcher` when we need to do IO into that
store path.
Change-Id: Ib39a96baeb661750a8706b461f8ba4abb342e777
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11500
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This caught me by accident in an earlier revision of cl/11500 -
I had a `NixString`, wanted to return it as a `String`, so I was naively
calling `s.into()`.
That unfortunately gave me the `Display` implementation of `NixString`,
which quotes strings, causing an annoying error further up the stack.
NixStrings are bytes, we can keep the impl From<NixString> for BString,
but having a `.into()` suddenly do quoting is more than unexpected.
Change-Id: I5434ba94bfe6c493d0a57e68225ecc22daa4b948
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11505
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
With custom phases, using `prompt` is not limited to the "release" phase
only, we only care about it not being in the "build" phase.
Change-Id: I8af27016865c728125dbe144d31006915b20b105
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11499
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
This makes the eval tests and benchmarks standalone Nix derivations and
readTree targets:
```
nix-build -A tvix.cli.eval-nixpkgs-cross-hello-outpath
nix-build -A tvix.cli.benchmark-nixpkgs-attrnames
```
Even without doing any fetches, We need to set `SSL_CERT_FILE`, so
reqwest is able to load its CA roots.
Change-Id: Ib45282d01044165c7816391adbeeb26334f8e924
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11493
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
We can speedup uploads further by not uploading all store paths
sequentially, but in parallel.
We still don't respect the reference graph, so nothing changed here.
Change-Id: I40edb5725fe7a15170f5b9f8f4c8bec2130ecca3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11492
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Rather than carrying around an Future in the IngestionEntry::Regular,
simply carry the plain B3Digest.
Code reading through a non-seekable data stream has no choice but to
read and upload blobs immediately, and code seeking through something
seekable (like a filesystem) probably knows better what concurrency to
pick when ingesting, rather than the consuming side.
(Our only) one of these seekable source implementations is now doing
exactly that. We produce a stream of futures, and then use
[StreamExt::buffered] to process more than one, concurrently.
We still keep the same order, to avoid shuffling things and violating
the stream order.
This also cleans up walk_path_for_ingestion in castore/import, as well
as ingest_dir_entries in glue/tvix_store_io.
Change-Id: I5eb70f3e1e372c74bcbfcf6b6e2653eba36e151d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11491
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
This function was originally called `read_to_string` but was changed to
`open` to make it so that file contents aren't always held in memory.
A comment and error message were not updated to reflect the new name of
this method.
Change-Id: I3d86e2f6d7006c2e1513121fc3c62efcb7e7b9bb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11495
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Fixes some build warnings that only happen when building in release mode
which disables `debug_assertions`.
Change-Id: I554d5fce7c869c23cf4aa93179f0ee9f7f7c834e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11490
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: Connor Brewster <cbrewster@hey.com>
Reviewed-by: flokli <flokli@flokli.de>
`ingest_entries` requires that all directories referenced by entries in
the ingestion stream have an explicit entry in the stream.
For example, if the stream contains a file with path `foo/bar`, there
must be an entry that comes later in the stream for the directory `foo`.
Change-Id: I61b4fbbb73ea7278715e04271d8073b484e05e61
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11488
Autosubmit: Connor Brewster <cbrewster@hey.com>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Implement a first pass at the fetchTarball builtin.
This uses much of the same machinery as fetchUrl, but has the extra
complexity that tarballs have to be extracted and imported as store
paths (into the directory- and blob-services) before hashing. That's
reasonably involved due to the structure of those two services.
This is (unfortunately) not easy to test in an automated way, but I've
tested it manually for now and it seems to work:
tvix-repl> (import ../. {}).third_party.nixpkgs.hello.outPath
=> "/nix/store/dbghhbq1x39yxgkv3vkgfwbxrmw9nfzi-hello-2.12.1" :: string
Co-authored-by: Connor Brewster <cbrewster@hey.com>
Change-Id: I57afc6b91bad617a608a35bb357861e782a864c8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11020
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Explicitly document and add a debug assertion for that.
It's up to callers to ensure this doesn't happen.
Change-Id: Ib5d154809c2ad2920258e239993d0b790d846dc8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11487
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Move error types and filesystem-specific functions to a separate file,
and keep the fs:: namespace in public exports.
Change-Id: I5e9e83ad78d9aea38553fafc293d3e4f8c31a8c1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11486
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
This is not a stream of direntries anymore, but a stream of ingestion
entries.
Change-Id: I387f4497b6567066b24c58ca0262e710348180e9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11485
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Previously the store ingestion code was coupled to `walkdir::DirEntry`s
produced by the `walkdir` crate which made it impossible to reuse
ingesting from other sources like tarballs or NARs.
This introduces a `IngestionEntry` which carries enough information for
store ingestion and a future for computing the Blake3 digest of files.
This allows the producer to perform file uploads in a way that makes
sense for the source, ie. the filesystem upload could concurrently
upload multiple files at the same time, while the NAR ingestor will need
to ingest the entire blob before yielding the next blob in the stream.
In the future we can buffer small blobs and upload them concurrently,
but the full blob still needs to be read from the NAR before advancing.
Change-Id: I6d144063e2ba5b05e765bac1f27d41b3c8e7b283
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11462
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This adds `Directory::add` which is a convenience helper for adding
nodes into a `Directory` while preserving sorted order.
This implements `Ord` and `PartialOrd` for `FileNode`, `SymlinkNode`,
and `DirectoryNode` so `binary_search` can be used.
Change-Id: I94b86bdef5d0da55aa352e098988b9704cafca19
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11481
Autosubmit: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
This is especially nice, as it allows us getting rid of the other
versions of proc-macro2 and quote.
Change-Id: I9fdd012ee6c0ded3e18ec30504b83ac2032d1390
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11474
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
