We have several cross-compilation bugs that show up if
hostPlatform!=buildPlatform yet
hostPlatform.config==buildPlatform.config.
These bugs have appeared and disappeared as we've fiddled with the
definition of equality for platform objects. This commit adds a
clear-cut case where they are *not* equal and never will be, so we
can test it.
This does decrease performance unfortunately
Benchmarking expression toSource { root = ./.; fileset = ./.; }
Mean CPU time 0.103747 (σ = 0.012415) for 10 runs is 97.32181384964636% (σ = 16.34179537413021%) of the old value 0.106602 (σ = 0.0125571)
Statistic .envs.elements (205920) is 105.5842% (+10891) of the old value 195029
Statistic .gc.totalBytes (20247696) is 101.7495% (+348160) of the old value 19899536
Statistic .nrThunks (134824) is 108.7878% (+10891) of the old value 123933
Statistic .symbols.number (996) is 100.1005% (+1) of the old value 995
Statistic .values.number (275238) is 104.1199% (+10891) of the old value 264347
Currently just throws the Nix error because unknown file types are not
supported by the Nix store, but nothing catches this error earlier (yet,
see next commit)
gnu-config will ignore the portion of a triple matching the regex
`e?abi.*$` when determining the validity of a triple. In other
words, `i386-linuxabichickenlips` is a valid triple.
This commit updates our parsing routines to match gnu-config.
I was recently surprised to discover that it is in fact possible to
shoehorn ABI flavors into nix doubles in a way which preserves their
property of being a (non-canonical) subset of the valid gnu-config
triples. This commit is required in order to exploit that discovery
to add automatic detection of ILP32 platforms (64-bit void*, 32-bit
int, like the Apple Watch and MIPS n32) to Nix.
Add the "Type:" blocks.
Move the examples below the descriptions whenever possibles
Add "Example:" tags before the examples moved below the descriptions.
For transforming back between lists and attrsets, it makes sense to have
a quasi-inverse of `builtins.listToAttrs` available as a library
function.
Co-authored-by: Silvan Mosberger <github@infinisil.com>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
To maintain backwards compatibility, this can't be changed in the Nix language.
We can however ensure that the version Nixpkgs has the more intuitive behavior.
This license is used by the Fraunhofer FDK codec, which is currently
mislicensed to Apache 2.0.
Of course, this can't be corrected without having the proper license
available in lib.licenses can't it??
Thanks @trofi for noticing this has an SPDX ID.
The v2 dashboard (included since version 1.41.0) is licensed under
Netdata Cloud UI License v1.0, which is a non-free license.
Patch the source code so that the v2 is not included in the source
and the result derivation. Users that want the v2 dashboard can still
request it by overriding this derivation and pass `withCloudUi = true`.
Co-authored-by: Raito Bezarius <masterancpp@gmail.com>
Fixes: https://github.com/NixOS/nixpkgs/issues/256964
$ ./benchmark.sh HEAD
[...]
Mean CPU time 0.04006 (σ = 0.0040146) for 10 runs is 8.193619775953792% (σ = 0.9584251052704821%) of the old value 0.488917 (σ = 0.0294955)
[...]
We can now test returned paths being equal, no need to work around it
anymore by making sure paths aren't returned (which would import them
with the previous --json)
The Minimalist Gnu for Windows distribution comes with support for
the traditional msvcrt libc, as well as ucrt64 libc. The latter
being the newer universal compiler runtime. We follow the msys2
environment naming convention[1]:
| name | toolchain | arch | libc | libc++ |
|------------|-----------|---------|--------|-----------|
| mingw32 | gcc | i686 | msvcrt | libstdc++ |
| mingw64 | gcc | x86_64 | msvcrt | libstdc++ |
| ucrt64 | gcc | x86_64 | ucrt | libstdc++ |
| clang32 | llvm | i686 | ucrt | libc++ |
| clang64 | llvm | x86_64 | ucrt | libc++ |
| clangarm64 | llvm | aarch64 | ucrt | libc++ |
For now nixpkgs only supports the first three with this commit.
--
[1]: https://www.msys2.org/docs/environments/
What it does: line and column level *declaration* position information:
$ nix repl .
nix-repl> :p nixosConfigurations.micro.options.environment.systemPackages.declarationPositions
[ { column = 7; file = "/nix/store/24aj3k7fgqv3ly7qkbf98qvphasrw9nb-source/nixos/modules/config/system-path.nix"; line = 63; } ]
Use cases:
- ctags over NixOS options, as will be presented at NixCon 2023 ;)
- improving the documentation pages to go to the exact line of the
declarations.
Related work:
- https://github.com/NixOS/nixpkgs/pull/65024
This one does it for all *definitions* rather than declarations, and
it was not followed through with due to performance worries.
- https://github.com/NixOS/nixpkgs/pull/208173
The basis for this change. This change is just a rebase of that one.
I split it out to add the capability before adding users of it, in
order to simplify review. However, the ctags script in there is a
sample user of this feature.
Benchmarks: conducted by evaluating my own reasonably complex NixOS
configuration with the command:
`hyperfine -S none -w 1 -- "nix eval .#nixosConfigurations.snowflake.config.system.build.toplevel.outPath"`
```
Benchmark 1: nix eval .#nixosConfigurations.snowflake.config.system.build.toplevel.outPath
Time (mean ± σ): 8.971 s ± 0.254 s [User: 5.872 s, System: 1.388 s]
Range (min … max): 8.574 s … 9.327 s 10 runs
Benchmark 1: nix eval .#nixosConfigurations.snowflake.config.system.build.toplevel.outPath
Time (mean ± σ): 8.766 s ± 0.160 s [User: 5.873 s, System: 1.346 s]
Range (min … max): 8.496 s … 9.033 s 10 runs
```
Summary of results: it seems to be in the noise, this does not cause any
visible regression in times.
This license was introduced in the Elastic search repository by this
commit: a92a647b9f
It appears that all the the packages in nixpkgs using the Elastic License are using the v2.0.
Added basic generators.toGitINI test.
Mostly taken from 958c06303f/tests/modules/programs/git/git.nix.
The ${"\t} escape is used so that the lines aren't recognized as "Wrong
indent style".
Right now converting `makeScope` to `makeScopeWithSplicing` is not
transparent to users and requires adding a warning for `overrideScope'`
in the set itself.
Warning and `overrideScope'` were added in 2018 b9dce11712 and there should be no users left after 5 years.
Deeply-curried functions are pretty error-prone in untyped languages
like Nix. This is a particularly bad case because
`top-level/splice.nix` *also* declares a makeScopeWithSplicing, but
it takes *two fewer arguments*.
Let's add a version that uses attrset-passing form, to provide some
minimal level of sanity-checking.
This also provides defaults for keep and extra (these are often
unneeded by the user).
These statements are taken from the `lib/test/release.nix` tests,
which previously also worked on darwin.
Unblocks https://github.com/NixOS/nix/pull/8569 when backported
This reverts commit c59c6b1c57.
This was a bit too ambitious, because no warnings were previously
triggered when `string` was nested e.g. `attrsOf string`, `nullOr
string`, etc.
Support for nested type deprecation warnings was introduced in
4b54aedee5, but had to be reverted in
a36e6760e9 because it caused infinite
recursion for some users, and I couldn't remember that it was reverted.
The type has given a warning on use since [4 years ago](03392cd336b128a1639c648baf0f6c1a1271e0d2), I think it's safe to move the deprecation to the next stage: An error instead of a warning.
Before this commit, getExe assumes that if `meta.mainProgram` is unset,
it has a main program that's named after the package name.
While this is probable, it leads to a bad error when the assumption does
not hold. If the user called `getExe` themselves, they might narrow down
the location of the assumption quite easily, but if that's not the case,
they'll have to go down the rabbit hole to figure out what went wrong.
For example, a NixOS module may use `lib.getExe` on a package-typed option
which is then used in the system configuration. This then typically leads
to a failure *after* deployment, which is bad, and it's quite likely that
the user will debug the package output contents before digging through the
NixOS module, which is bad.
Furthermore the `getExe` call is rather inconspicuous as it does not
contain something like "/bin/foo", which is bad.
Also modules can be hard to read for a newbie, which is bad.
All of this can be avoided by requiring `meta.mainProgram`.
Many packages already have the attribute, and I would expect 80% of
`getExe` usages to be covered by 20% of packages, because plenty of
packages aren't used with `getExe` anyway.
Finally we could make an effort to set `mainProgram` semi-automatically
using `nix-index`.
Deeply-curried functions are pretty error-prone in untyped languages
like Nix. This is a particularly bad case because
`top-level/splice.nix` *also* declares a makeScopeWithSplicing, but
it takes *two fewer arguments*.
Let's switch to attrset-passing form, to provide some minimal level
of sanity-checking.
mkOption does not require a `type` argument and does not set the
resulting attribute if it is not given. Consequently, we need to be
prepared to merge options that have no type information.
Add support for Nvidia's Bluefield 2 plattform as a compilation
target. There exists a version with and without crypto support,
while the crypto supported version is the most common one.
Support for the non-crypto version can be easily added in the future,
if needed.
For a datasheet of the hardware, see:
https://www.nvidia.com/content/dam/en-zz/Solutions/Data-Center/documents/datasheet-nvidia-bluefield-2-dpu.pdf
Signed-off-by: Markus Theil <theil.markus@gmail.com>
This is a non-trivial refactor that slightly changes the semantics
of the internal definition lists.
Whereas previously only individual list items would trigger the exception,
now the error is promoted to the whole list.
This is mostly ok, because we compute the value, it is wrong to ignore a definition.
However, we don't always compute the value. For instance `readOnly`
only needs to count definitions. That won't be possible anymore when
the error is raised for one of the items. As a consequence, an error
will be raised for the errant definition instead of the number of
definitions.
Having the current bash hash present in the nixpkgs tree makes Nix
detect bash as a runtime dependency of nixpkgs, which in turns messes up
`fetchFromGitHub` due to https://github.com/NixOS/nix/issues/6660
Because downstream code expects to use `==` on platform attrsets, we
are unfortunately not able to throw a useful error message when the
`sharedLibrary` attribute is accessed.
When users do a comparison like:
stdenv.hostPlatform == pkgsStatic.stdenv.hostPlatform
... in a situation where `stdenv.hostPlatform.hasSharedLibraries`,
they expect this to return `false`. Unfortunately Nix does a deep
equality comparison here, and ends up forcing the
`pkgsStatic.stdenv.hostPlatform.extensions.sharedLibrary` attribute,
which throws the error.
Rather than returning `null`, this commit instead simply omits the
`extensions.sharedLibrary` attribute. This provides the user with a
more-useful error message: instead of waiting until the `null` is
used (and hoping that produces an error), the user will get an error
about the `extensions.sharedLibrary` attribute being missing, at the
position where it was referenced.
Big thanks to @trofi for his PR to add
`NIX_VALIDATE_EVAL_NONDETERMINISM` to Nix, which I am now using. It
made tracking this down really easy!
Fixes#244045
