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This is technically a breaking change, since attempting to set plugin
files after the first non-flag argument will now throw an error. This
is acceptable given the relative lack of stability in a plugin
interface and the need to tie the knot somewhere once plugins can
actually define new subcommands.
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We know the flag will be ignored but the user wants it to take effect.
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Add x86_64 compute levels as system features
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The PR #4240 changed messag of the error that was thrown when an auto-called
function was missing an argument.
However this change also changed the type of the error, from `EvalError`
to a new `MissingArgumentError`. This broke hydra which was relying on
an `EvalError` being thrown.
Make `MissingArgumentError` a subclass of `EvalError` to un-break hydra.
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When performing distributed builds of machine learning packages, it
would be nice if builders without the required SIMD instructions can
be excluded as build nodes.
Since x86_64 has accumulated a large number of different instruction
set extensions, listing all possible extensions would be unwieldy.
AMD, Intel, Red Hat, and SUSE have recently defined four different
microarchitecture levels that are now part of the x86-64 psABI
supplement and will be used in glibc 2.33:
https://gitlab.com/x86-psABIs/x86-64-ABI
https://lwn.net/Articles/844831/
This change uses libcpuid to detect CPU features and then uses them to
add the supported x86_64 levels to the additional system types. For
example on a Ryzen 3700X:
$ ~/aps/bin/nix -vv --version | grep "Additional system"
Additional system types: i686-linux, x86_64-v1-linux, x86_64-v2-linux, x86_64-v3-linux
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Deeper `Command` hierarchy to remove redundancy
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It isn't needed anymore now that don't need to eagerly resolve
everything like we used to do. So we can safely get rid of it
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That way we
1. Don't have to recompute them several times
2. Can compute them in a place where we know the type of the parent
derivation, meaning that we don't need the casting dance we had before
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It's not fixed nor useful atm, so better keep it hidden
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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Once a build is done, get back to the original derivation, and register
all the newly built outputs for this derivation.
This allows Nix to work properly with derivations that don't have all
their build inputs available − thus allowing garbage collection and
(once it's implemented) binary substitution
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Change the `nix-build` logic for linking/printing the output paths to allow for
some outputs to be missing. This might happen when the toplevel
derivation didn't have to be built, either because all the required
outputs were already there, or because they have all been substituted.
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Workaround for #4550.
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Issue #4498.
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This is useful when the program name doesn't match the package name
(e.g. ripgrep vs rg).
Fixes #4498.
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Fixes #3949.
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Fixes #3743.
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Fixes #4542.
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Fixes #4540.
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Simply put, we now have `StorePathCommand : public StorePathsCommand` so
`StorePathCommand` doesn't reimplement work.
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the compressed hash"
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narinfo: Change NAR URLs to be addressed on the NAR hash instead of the compressed hash
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libcmd/markdown: handle allocation errors in lowdown_term_rndr
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We upgrade to lowdown 0.8.0 [1] which contains a fix/improvement to a
behavior mentioned in this issue thread [2] where a big part of
lowdown's API would just call exit(1) on allocation errors since that
is a satisfying behavior for the lowdown binary.
Now lowdown_term_rndr returns 0 if an allocation error occurred which we
check for in libcmd/markdown.cc.
Also the extern "C" { } wrapper around lowdown.h has been removed as it
is not necessary.
[1]: https://github.com/kristapsdz/lowdown/blob/6ca7c855a063d1c77ae0b89405047cc3913a74d8/versions.xml#L987-L1006
[2]: https://github.com/kristapsdz/lowdown/issues/45#issuecomment-756681153
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Add a new Cmd type working on RealisedPaths
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Use derivation output name from toDerivation
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Hopefully this helps to diagnose 'error: unexpected EOF reading a
line' on macOS.
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In addition to being some ugly template trickery, it was also totally
useless as it was used in only one place where I could replace it by
just a few extra characters
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Despite being an ugly hack, it can probably be useful in a couple extra
places
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Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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This makes nix search always go through the first level of an
attribute set, even if it's not a top level attribute. For instance,
you can now list all GHC compilers with:
$ nix search nixpkgs#haskell.compiler
...
This is similar to how nix-env works when you pass in -A.
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Reference #356.
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This fixes an issue where derivations with a primary output that is
not "out" would fail with:
$ nix profile install nixpkgs#sqlite
error: opening directory '/nix/store/2a2ydlgyydly5czcc8lg12n6qqkfz863-sqlite-3.34.1-bin': No such file or directory
This happens because while derivations produce every output when
built, you might not have them if you didn't build the derivation
yourself (for instance, the store path was fetch from a binary cache).
This uses outputName provided from DerivationInfo which appears to
match the first output of the derivation.
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Fix some logging with ca derivations
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Address `mktemp: illegal option -- -`.
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Where a `RealisedPath` is a store path with its history, meaning either
an opaque path for stuff that has been directly added to the store, or a
`Realisation` for stuff that has been built by a derivation
This is a low-level refactoring that doesn't bring anything by itself
(except a few dozen extra lines of code :/ ), but raising the
abstraction level a bit is important on a number of levels:
- Commands like `nix build` have to query for the realisations after the
build is finished which is fragile (see
27905f12e4a7207450abe37c9ed78e31603b67e1 for example). Having them
oprate directly at the realisation level would avoid that
- Others like `nix copy` currently operate directly on (built) store
paths, but need a bit more information as they will need to register
the realisations on the remote side
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Move command plugin interface to libnixcmd
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Example:
error: builder for '/nix/store/9ysqfidhipyzfiy54mh77iqn29j6cpsb-failing.drv' failed with exit code 1;
last 1 log lines:
> FAIL
For full logs, run 'nix log /nix/store/9ysqfidhipyzfiy54mh77iqn29j6cpsb-failing.drv'.
… while importing '/nix/store/pfp4a4bjh642ylxyipncqs03z6kkgfvy-failing'
at /nix/store/25wgzr2qrqqiqfbdb1chpiry221cjglc-source/flake.nix:58:15:
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58| ifd = import self.hydraJobs.broken;
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Example:
$ nix build --show-trace
error: unable to download 'https://api.github.com/repos/NixOS/nixpkgs/commits/no-such-branch': HTTP error 422 ('')
response body:
{
"message": "No commit found for SHA: no-such-branch",
"documentation_url": "https://docs.github.com/rest/reference/repos#get-a-commit"
}
… while fetching the input 'github:NixOS/nixpkgs/no-such-branch'
… while updating the flake input 'nixpkgs'
… while updating the lock file of flake 'git+file:///home/eelco/Dev/nix'
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Fix a mismatch in the errors thrown when a needed output was missing
from an input derivation that was leading to a wrong and quite misleading error
message
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Don't only show the name of the output, but also the derivation to which
this output belongs (as otherwise it's very hard to track back what went
wrong)
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