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The outer fingerprint used for store path calculation is always a sha256
digest. This includes both input and output-addressed store paths.
We used a NixHash here, which can also represent other hash types, and
that had a bunch of annoyances:
- Whenever we had the bytes, we had to wrap them in a NixHash::Sha256().
- Things like AtermWriteable had to be implemented on NixHash,
even though we then had an assertion it was only called in the
NixHash::Sha256 case.
Change-Id: Ic895503d9b071800d2e52ae057666f44bd0ab9d6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11142
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: John Ericson <git@johnericson.me>
Reviewed-by: picnoir picnoir <picnoir@alternativebit.fr>
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https: //b.tvl.fyi/issues/264
Change-Id: Icb09be9643245cc68d09f01d7723af2d44d6bd1a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11001
Autosubmit: Peter Kolloch <info@eigenvalue.net>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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...in `Derivation`.
This is more type-safe and should consume less memory.
This also removes some allocations in the potentially hot path of output hash calculation.
https: //b.tvl.fyi/issues/264
Change-Id: I6ad7d3cb868dc9f750894d449a6065608ef06e8c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10957
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: Peter Kolloch <info@eigenvalue.net>
Reviewed-by: Peter Kolloch <info@eigenvalue.net>
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Rather than passing strings around, use a StorePathRef.
This makes things a bit more typesafe, and more aligned with what we
want to do in b/264.
Change-Id: Ib7080addf27e7f1a9c8da1d8aaa66744468e3b5a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10633
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
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These were used to format to and parse from strings.
Move this to the CAHash and NixHash structs directly, and be explicit in
the name about which encoding for digests is used.
For output path calculation, nix encodes the nixpaths in hex, but for
writing out NARInfos, it's using nixbase32.
Change-Id: Ia585a76a3811b2609e7ce259fda66a29403b7e07
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10079
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
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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>
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This specific struct is only used to represent content-addressed paths
(in case a Derivation has a fixed-output hash, for example).
Rename `Output`'s `hash_with_mode` to `ca_hash`.
We now also include `CAHash::Text`, and update the `validate` function
of the `Output` struct to reject text hashes there.
This allows cleaning up the various output path calculation functions
inside nix-compat/src/store_path/utils.rs, as they can now match on
the type.
`make_type` is renamed to `make_references_string`,
`build_regular_ca_path` is renamed to `build_ca_path`, and
`build_text_path` has a disclaimer added, because you might not actually
want to use it.
Change-Id: I674d065f2ed5c804012ddfed56e161ac49d23931
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9814
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
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The previous CLs did already absorb all the logic into the common tests,
no need to write this here again.
Change-Id: I7ba84ba86d5445ed247e5d11d5e59b7fa815670e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9732
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
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Due to the lack of a ATerm parser, we were previously loading the JSON
fixtures to construct our Derivation structs to run the output path
calculations with.
However, as we now have a ATerm parser, we can load the ATerm
representation directly.
This also means we can test the output path calculation for non-UTF8
Derivations.
Change-Id: I0e53f41a23566b5ad5f0fed12724e02a10b02707
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9731
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
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This provides a nom-based parser for Nix derivations in ATerm format,
which can be reached via `Derivation::from_aterm_bytes`.
Some of the lower-level ATerm primitives are moved into a (new) aterm
module, and some more higher-level ones that construct derivation-
specific types.
Also, move the escape_bytes function into there, this is a generic ATerm
thing.
Change-Id: I2b03b8a1461c7ea2fcb8640c2fc3d1fa3ea719fb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9730
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
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We use test_resources and globbing for some of the test cases, so adding
additional files in there will also create new test cases, which we
don't always want.
Move it down one level to make some more space.
Change-Id: I619867dc80a4ced59d45096d0703678663b559cd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9729
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
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Less Vec<u8> passed around.
Change-Id: Ie153a6bfaa084d7490ffa38634efdf5f3c31a768
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9722
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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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
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Change-Id: I764232378f79f16c781870d467469db91a2f14d2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9001
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
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Make it more obvious if these are bytes pointing to JSON or ATerm, so we
don't get confused.
Change-Id: I2402c687b7ba9c05aac20ed63b0df54e4e96a9d8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8998
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
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Derivations can have non-unicode strings in their env values, so the
ATerm representations are not necessarily String anymore, but Vec<u8>.
Change-Id: Ic23839471eb7f68d9c3c30667c878830946b6607
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8990
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
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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>
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Before there was code scattered about (e.g. text hashing module and
derivation output computation) constructing store paths from low level
building blocks --- there was some duplication and it was easy to make
nonsense store paths.
Now, we have roughly the same "safe-ish" ways of constructing them as
C++ Nix, and only those are exposed:
- Make text hashed content-addressed store paths
- Make other content-addressed store paths
- Make input-addressed fixed output hashes
Change-Id: I122a3ee0802b4f45ae386306b95b698991be89c8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8411
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
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This doesn't have anything to do with ATerms, we just happen to be using
the aterm representation of a Derivation as contents.
Moving this into store_path/utils.rs makes these things much cleaner -
Have a build_store_path_from_references function, and a
build_store_path_from_fingerprint helper function that makes use of it.
build_store_path_from_references is invoked from the derivation module
which can be used to calculate the derivation path.
In the derivation module, we also invoke
build_store_path_from_fingerprint during the output path calculation.
Change-Id: Ia8d61a5e8e5d3f396f93593676ed3f5d1a3f1d66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8367
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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This stops using our own custom Hash structure, which was mostly only
used because we had to parse the JSON representation somehow.
Since cl/8217, there's a `NixHash` struct, which is better suited to
hold this data. Converting the format requires a bit of serde labor
though, but that only really matters when interacting with JSON
representations (which we mostly don't).
Change-Id: Idc5ee511e36e6726c71f66face8300a441b0bf4c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8304
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
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This only trims the output paths from a Derivation struct, not the
output hashes.
Change-Id: I9250fec4602ed05bb64540c4a89ddb6fb052be1f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8303
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
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Change-Id: Ia6af8d4b53fbd4d9ea26f0094cd98dde66a91f78
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8301
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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Call this function derivation_or_fod_hash, and return a NixHash.
This is more in line with how cppnix calls this, and allows using
to_nix_hash_string() in some places.
Change-Id: Iebf5355f08ed5c9a044844739350f829f874f0ce
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8293
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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Change-Id: I3f3f7cb590c900abf8b39533ed73fe9135d58f0b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8220
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
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Instead of implementing `std::fmt::Display for Derivation` and relying
on the `to_string` method, introduce a `to_aterm_string()` method, which
does the same thing, but makes it clearer what we're producing, rather
than just calling `to_string()``.
Change-Id: I21823de9096a0f2c2eb6f4591e48c1aa9fd94161
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7998
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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Put this in its src/derivation.
Change-Id: Ic047ab1c2da555a833ee454e10ef60c77537b617
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7967
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
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