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Change-Id: Ia05b8eb3054a39897d3ec5783daecfe4bcf054e7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7779
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
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Change-Id: I0d71b82eb7ddc1e457b0996b0668006f55f56751
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7790
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
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Caught by sterni on cl/7783.
Change-Id: I15d57b893ef22538fdd7e809f3b92861dd2bc1af
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7789
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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Some of the fields in a Derivation struct stay empty, and manually
creating BTreeMap or vec for it is annoying.
Derive Default instead, so we can use the defaults instead of writing
more by hand.
Change-Id: I5d41b4b55c8187cb101eb4266451a470008e0067
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7788
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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Change-Id: I30bc475e3e36a163fa169083481cdd4b4d0ca456
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7785
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
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This placeholder should not live in the main crate anymore as we will
be injecting the real one from outside of eval, but there are still
language tests that depend on a (simple, mockable) version of it.
Change-Id: I68ea169db15cbdbeed320930d3069e21e376c90d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7783
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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Instead of concatenating STORE_DIR manually, use
StorePath::to_absolute_path() that does it for us.
Change-Id: Ia288851a05b4e339679db268f3dd7924e7b65586
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7782
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This project was not previously covered by CI (fixed in this commit),
so we didn't catch breakage due to a renamed module.
This was noticed while rebasing a CL that has a dependency on this
crate in its Nix build.
Change-Id: Ic48570b9313e5f73e14daab50cf7ea70918c94d1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7778
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This embeds the build config directly at the point where `Cargo.nix`
is imported, making it transparent to library consumers.
Change-Id: I5586e12f02ed14587c32d9ef7d93f079366fb127
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7780
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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Change-Id: Ifab28d97ddc22a2073c5df5e6e2cefb51b4b9191
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7777
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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As discussed in #tvl, this is a more common term for it.
Change-Id: I9b904222b8c076f82192c9b7f0b42be171614ab7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7776
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This exercises the output path calculation functions like a constructing
client (an implementation of builtins.derivation) would do.
It first assembles the bar derivation, does the output path calculation
on it, then continues with the foo derivation.
The code ensures the resulting Derivations match our fixtures.
Change-Id: If93f89c6622fac1c1941085083931b6f657c04bc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7775
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This provides a function returning a string starting with the store
path prefix, the counterpart of `from_absolute_path`.
Change-Id: I4947f3b00171fe70357c62b3d64dc769b69e7a44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7774
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This implement output path calculation for fixed outputs, both fixed-
output and non-fixed-output.
Change-Id: I0a77b99f2ba6b39467cc5dd589ce152a40387f9a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7761
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: jrhahn <mail.jhahn@gmail.com>
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This will return the fixed output of a derivation (and its hash), or
None if the Derivation is not fixed-output.
It will simplify the logic in the output path calculation a bit.
Change-Id: I1066cc18ee4fc419421a8c5995c93ba91b35588f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7760
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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This moves all the hash compression logic into a common helper function.
Also update the docstring, which said "path" here, which could have been
confused with output paths.
Change-Id: Iedfb59aeb24f7638afac669dcd18d57b6cfaece2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7759
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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Change-Id: I567ca0682012b9d09f1217e57a104ac5671f8d82
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7771
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: flokli <flokli@flokli.de>
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Change-Id: Ib6ef7ce514abbd3e372dfe9df7137aa36dbda9d4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7770
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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This is marginally more efficient and has simpler bytecode.
Change-Id: Iad37c9aeef24583e8f696911bcd83d43639f2e36
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7769
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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Change-Id: I82bec6fe2210bcb88c46fd2fdf3e26bd613d1c1f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7768
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
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This adds a mechanism to the compiler to compile an expression without
emitting any code. This allows for detected dead code to still be
compiled to detect errors & warnings inside of it.
Change-Id: Ie78479173570e9c819d8f32ae683ce34234a4c5d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7767
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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This optimiser can rewrite some expressions into more efficient forms,
and warn users about those cases.
As a proof-of-concept, only some simple boolean comparisons are
supported for now.
Change-Id: I7df561118cfbad281fc99523e859bc66e7a1adcb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7766
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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This adds a very minimal amount of additional Rc-increments (~1 per
compilation), but makes it a lot easier to add an AST-optimising
compiler pass without incurring a lot of extra cost.
Change-Id: I57208bdfc8882e3ae21c5850e14aa380d3ccea36
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7765
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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With this, tvix/cli can be run on files and only produce compiler
errors and warnings.
Change-Id: I5dd9229fc065647787daafd17d7c1540579a1d98
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7764
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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This would make it possible to implement something like a linter based
on the tvix-eval compiler warnings.
Change-Id: I1feb4e7c4a44be7d1204b0a962ab522fd32b93c6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7763
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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There was probably a misunderstanding somewhere about the
with_stack_size being related to how far away it is from the with, but
it is about whether there is a with at all.
This broke a warning (`UselessInherit`), and may actually have let to
more inefficient codegen in some cases.
Change-Id: I08338ea59ae39dad01ca8a4e09d934a936cdea2f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7762
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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... without them, using the new Builtins API is basically impossible
for library consumers.
Change-Id: Ice0557a2e55e12d812f51bf5a99e6b8c91ad1b91
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7755
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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Code probably rarely relies on these, but it's not hard to support them.
Change-Id: I8499fec34efaf031f9c013bbd370a13db929a2a3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7772
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: sterni <sternenseemann@systemli.org>
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This will eventually force us to have a base builtins set in common with
C++ Nix, i.e. all 2.3 builtins except the controversial
builtins.valueSize.
Change-Id: I2c767f07d6a14711911658e87da9f18ede57a143
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7747
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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This allows juggling with Derivation structs in unit tests, and makes it
very easy to compare them for equality.
Change-Id: I1faf2ec1eefb1a40fcee3c29f04ec47d29f22691
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7758
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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Change-Id: I87dfadda872439e108e5f678a5da63dd5b1915d1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7732
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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Use the #[serde(rename = "…")] field attributes to match the field names
that Nix uses in its JSON output (nix show-derivation).
This allows us to just re-use the exact same fixtures from go-nix,
without manual post-massaging.
Change-Id: Ifd5c08e43cd4f50d5e02903eccd8cb37230b70a6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7757
Reviewed-by: jrhahn <mail.jhahn@gmail.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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This conveys better if an output of a Derivation is fixed-output or not,
and provides a Hash struct that can be used to store the algo and
digest.
In case it's not, this can simply be None. The serde field attributes
have been updated to still accept the same JSON.
We currently still store the hash algo and digest as strings, mostly
because the only thing populating it so far is the example JSONs.
We might want to update this, once actual Nix code populates this.
While updating write.rs, I pushed some of the Vec<String> to [&str]
conversions inline, and made it a Vec<&str>, because it was annoying to
juggle with.
Change-Id: Ia9cd0568fe179ac22a4a636237f22ab4ad92b95b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7746
Tested-by: BuildkiteCI
Reviewed-by: jrhahn <mail.jhahn@gmail.com>
Reviewed-by: tazjin <tazjin@tvl.su>
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Allow others to peek into values. We should probably still restrict
this further at a later point.
Change-Id: I2831432038aa87c3c7dcc85af4fa76a4fe0eadff
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7745
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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There's now a common constant for this, so we don't need to redefine
it here.
Change-Id: I48b096f5e623e5fc5bbd355db83b674766935f94
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7753
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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This allows constructing a NixPath from an absolute path. It pops off
the STORE_DIR prefix and the trailing slash and returns an error if it
couldn't be found.
Change-Id: Ib540e353c63cc247ac15e20414b0db2caf695ef4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7751
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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Implements externally tagged enum deserialisation. Other serialisation
methods are handled by serde internally using the existing methods.
See the tests for examples.
Change-Id: Ic4a9da3b5a32ddbb5918b1512e70c3ac5ce64f04
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7721
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
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Only missing enums at this point, but they're a bit of a beast.
Change-Id: I4ad47c034851f9a8794c81f39a5149a8ac1826e8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7716
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
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Change-Id: Ic7559eaa43aa0dcc97babb7669770c0f7f959f1b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7754
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
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With this is_valid_nix_identifier should line up with the upstream lexer
definition:
ID [a-zA-Z\_][a-zA-Z0-9\_\'\-]*
While we're working on this, add a simple test checking the various
formatting rules. Interestingly, it would not be suitable as an identity
test, since you have to write
{ "assert" = null; }
in order to avoid an evaluation error, but C++ Nix is happy to print
this as
{ assert = null; }
– maybe should be considered to be a bug.
Change-Id: I0a4e1ccb5033a80f3767fb8d1c4bba08d303c5d8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7744
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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Previously the construction of globals (a compiler-only concept) and
builtins (a (now) user-facing API) was intermingled between multiple
different modules, and kind of difficult to understand.
The complexity of this had grown in large part due to the
implementation of `builtins.import`, which required the notorious
"knot-tying" trick using Rc::new_cyclic (see cl/7097) for constructing
the set of globals.
As part of the new `Evaluation` API users should have the ability to
bring their own builtins, and control explicitly whether or not impure
builtins are available (regardless of whether they're compiled in or
not).
To streamline the construction and allow the new API features to work,
this commit restructures things by making these changes:
1. The `tvix_eval::builtins` module is now only responsible for
exporting sets of builtins. It no longer has any knowledge of
whether or not certain sets (e.g. only pure, or pure+impure) are
enabled, and it has no control over which builtins are globally
available (this is now handled in the compiler).
2. The compiler module is now responsible for both constructing the
final attribute set of builtins from the set of builtins supplied
by a user, as well as for populating its globals (that is
identifiers which are available at the top-level scope).
3. The `Evaluation` API now carries a `builtins` field which is
populated with the pure builtins by default, and can be extended by
users.
4. The `import` feature has been moved into the compiler, as a
special case. In general, builtins no longer have the ability to
reference the "fix point" of the globals set.
This should not change any functionality, and in fact preserves minor
differences between Tvix/Nix that we already had (such as
`builtins.builtins` not existing).
Change-Id: Icdf5dd50eb81eb9260d89269d6e08b1e67811a2c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7738
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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This adds a function to generate the derivation path. The computation
is based on the Go implementation.
Change-Id: Iae89db4976f5fd9208f0453f73688689a245cd66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7729
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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This is just to clarify that the formatted result is the ATerm representation
Change-Id: I98fd0b1d2daa3cf6fdbe526ae1e0bd100ff62df3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7742
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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This adds the implementation of fmt::Display for Derivation so that we can
easily store the formatted content as a string. Internally, we use the
serialization function to generate the string.
Change-Id: I6caca0d6c1bea3ca44b6c535c5b1d5d66d8413b7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7741
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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Change-Id: I0a9779edf0296c25d37fb5f75f8fc5852fe00121
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7715
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
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Change-Id: I543fc05d31bbb9ad2edb887bce4510e9a1cdb102
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7714
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
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Rename PATH_HASH_SIZE to DIGEST_SIZE.
It's a digest, not hash (we don't necessarily have the internal hash
state anymore), and the fact it's about (Nix)Paths is already visible
from the module name.
Also expose ENCODED_DIGEST_SIZE, so we don't need to do the calculation
inside from_string() method, and it becomes more clear this is a
constant.
Change-Id: I0e7577dd7a6e503039037b986313b214e995d826
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7725
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: jrhahn <mail.jhahn@gmail.com>
Tested-by: BuildkiteCI
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These can be accessed directly.
Change-Id: I71dc84f982820d53f319efefbed9b9055034954d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7724
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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This provides validation of PathInfo messages, and ensures the output
hashes are properly parsed from the root node names.
NixPath already has a more extensive test suite for various wrong
NixPaths, so it's omitted from here.
Change-Id: I5d69118df5816daabb521ddb19d178bddd1caacf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7684
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This allows other crates to import tvix_store.
Rename the bin crate to tvix-store-bin, to avoid having multiple crates
with the same name (https://github.com/rust-lang/cargo/issues/6313)
Change-Id: I857768d6115640dbf102e79ed03e8474090df2fe
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7728
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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