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nix store ping: add --json flag
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For frameworks it's important that structures are as lazy as possible
to prevent infinite recursions, performance issues and errors that
aren't related to the thing to evaluate. As a consequence, they have
to emit more attributes than strictly (sic) necessary.
However, these attributes with empty values are not useful to the user
so we omit them.
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Move the default profiles to the user’s home
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nix flake show: don't evaluate derivations for foreign systems by default
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Things leading to another...
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Don't hardcode “x86_64-linux” as this won't work too nicely on other
platforms
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getDefaultNixPath: actually respect `{restrict,pure}-eval`
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Move nixos tests
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Previously, getDefaultNixPath was called too early: at initialisation
time, before CLI and config have been processed, when `restrictEval` and
`pureEval` both have their default value `false`. Call it when
initialising the EvalState instead, and use `setDefault`.
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Add an `$` at the end of the `grep` regex. Without it, `checkRef foo`
would always imply `checkRef foo.drv`. We want to tell these situations
apart to more precisely test what is going on.
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nix/show-config: allow getting the value of a specific setting
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Read file type
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Allows checking directory entry type of a single file/directory.
This was added to optimize the use of `builtins.readDir` on some
filesystems and operating systems which cannot detect this information
using POSIX's `readdir`.
Previously `builtins.readDir` would eagerly use system calls to lookup
these filetypes using other interfaces; this change makes these
operations lazy in the attribute values for each file with application
of `builtins.readFileType`.
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The original `builtins.getContext` test from
1d757292d0cb78beec32fcdfe15c2944a4bc4a95 would have caught this. The
problem is that b30be6b450f872f8be6dc8afa28f4b030fa8d1d1 adding
`builtins.appendContext` modified that test to make it test too much at
once, rather than adding a separate test.
We now have isolated tests for both functions, and also a property test
showing everything put together (in the form of an eta rule for strings
with context). This is better coverage and properly reproduces the bug.
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This will allow contributors to find them more easily.
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Fixes #7624.
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Rather than using `/nix/var/nix/{profiles,gcroots}/per-user/`, put the user
profiles and gcroots under `$XDG_DATA_DIR/nix/{profiles,gcroots}`.
This means that the daemon no longer needs to manage these paths itself
(they are fully handled client-side). In particular, it doesn’t have to
`chown` them anymore (removing one need for root).
This does change the layout of the gc-roots created by nix-env, and is
likely to break some stuff, so I’m not sure how to properly handle that.
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<setting>`
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Ca/fix nix log
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Prior to this change, we had a bunch of ad-hoc string manipulation code
scattered around. This made it hard to figure out what data model for
string contexts is.
Now, we still store string contexts most of the time as encoded strings
--- I was wary of the performance implications of changing that --- but
whenever we parse them we do so only through the
`NixStringContextElem::parse` method, which handles all cases. This
creates a data type that is very similar to `DerivedPath` but:
- Represents the funky `=<drvpath>` case as properly distinct from the
others.
- Only encodes a single output, no wildcards and no set, for the
"built" case.
(I would like to deprecate `=<path>`, after which we are in spitting
distance of `DerivedPath` and could maybe get away with fewer types, but
that is another topic for another day.)
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tests: fix for nixpkgs 22.11
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runCommand now uses stdenvNoCC by default, so that needs to be
included instead of the regular stdenv.
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NixOS modules can be paths. Rather than dig further down into the layer
violation, don't check anything specific to NixOS modules.
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It's not a check.
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Adds a new boolean structured attribute
`outputChecks.<output>.unsafeDiscardReferences` which disables scanning
an output for runtime references.
__structuredAttrs = true;
outputChecks.out.unsafeDiscardReferences = true;
This is useful when creating filesystem images containing their own embedded Nix
store: they are self-contained blobs of data with no runtime dependencies.
Setting this attribute requires the experimental feature
`discard-references` to be enabled.
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- Test with `--derivation`
- Actually test with ca-derivations (was suuposedly done, but not
activated because of a missing line in `local.mk`)
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Optimize intersectAttrs performance
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as proposed by @mkaito[1] and @tazjin[2] and discussed with @edolstra
and Nix maintainers
[1]: https://github.com/NixOS/nix.dev/pull/267#issuecomment-1270076332
[2]: https://github.com/NixOS/nix.dev/pull/267#issuecomment-1270201979
Co-authored-by: John Ericson <git@JohnEricson.me>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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Make `./mk/run-test.sh` work by itself; add `mk/debug-test.sh`
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Always traverse the shortest set.
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Without the change checks issue the fllowing warning:
$ nix flake check
trace: warning: The option `nix.useSandbox' defined in `makeTest parameters' has been renamed to `nix.settings.sandbox'.
trace: warning: The option `nix.useSandbox' defined in `makeTest parameters' has been renamed to `nix.settings.sandbox'.
trace: warning: The option `nix.maxJobs' defined in `makeTest parameters' has been renamed to `nix.settings.max-jobs'.
...
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Bump nixpkgs to 22.11
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First, logic is consolidated in the shell script instead of being spread
between them and makefiles. That makes understanding what is going on a
little easier.
This would not be super interesting by itself, but it gives us a way to
debug tests more easily. *That* in turn I hope is much more compelling.
See the updated manual for details.
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
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This makes 'nix build' work on paths (which will be copied to the
store) and store paths (returned as is). E.g. the following flake
output attributes can be built using 'nix build .#foo':
foo = ./src;
foo = self.outPath;
foo = builtins.fetchTarball { ... };
foo = (builtins.fetchTree { .. }).outPath;
foo = builtins.fetchTree { .. } + "/README.md";
foo = builtins.storePath /nix/store/...;
Note that this is potentially risky, e.g.
foo = /.;
will cause Nix to try to copy the entire file system to the store.
What doesn't work yet:
foo = self;
foo = builtins.fetchTree { .. };
because we don't handle attrsets with an outPath attribute in it yet,
and
foo = builtins.storePath /nix/store/.../README.md;
since result symlinks have to point to a store path currently (rather
than a file inside a store path).
Fixes #7417.
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Introduce AbstractPos
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The use of 'nullptr' here didn't result in a null JSON value, but in a
nullptr being cast to a string, which aborts.
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This makes the position object used in exceptions abstract, with a
method getSource() to get the source code of the file in which the
error originated. This is needed for lazy trees because source files
don't necessarily exist in the filesystem, and we don't want to make
libutil depend on the InputAccessor type in libfetcher.
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Enable some language tests that were accidentally disabled
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