libstdc++'s std::stable_sort and new builtins.sort implementation
special-case ranges with length less than or equal to 16 and delegate
to insertionsort.
Having a larger e2e test would allow catching sort stability issues
at functional level as well.
Makes the behavoral change of #13263 without the underlying refactor.
Hopefully this clearly safe from a perf and GC perspective, and will
make it easier to benchmark #13263.
This adds a meson.format file that mostly mirrors the projects
meson style and a pre-commit hook to enforce this style.
Some low-diff files are formatted.
Seen in 4390954027:
nix-functional-tests> grep: repl_output: No such file or directory
nix-functional-tests> +(repl.sh:174) cat repl_output
This is because there is a small possibility that the `nix repl` child
process hasn't created `repl_output` yet. So make sure it exists.
Invoking `:ll` will start a pager with all variables which have just
been loaded by `:lf`, `:l`, or by a flake provided to `nix repl` as an
argument.
https://github.com/NixOS/nix/issues/11404
When we run `nix repl nixpkgs` we get "Added 6 variables". This is not
useful as it doesn't tell us which variables the flake has exported to
our global repl scope.
This patch prints the name of each variable that was just loaded. We
currently cap printing to 20 variables in order to avoid excessive
prints.
https://github.com/NixOS/nix/issues/11404
Judging by the comment for `makeEmptySourceAccessor` the prefix has
to be empty:
> Return a source accessor that contains only an empty root directory.
Fixes#13295.
These tests have been collected from nixpkgs f870c6ccc8951fc48aeb293cf3e98ade6ac42668
usage of builtins.match for x86_64-linux eval system. At most 2 matching and
non-matching cases are included for each encountered regex. This should
hopefully add more confidence when possibly trying to switch the regex implementation
in the future.
Before we got something like this but only inside the VM test:
vm-test-run-functional-tests-on-nixos_user> machine # fetchGit.sh: line 286: unexpected EOF while looking for matching `)'
We now try to do not too much in a single line, so that the bash parser does not get confused.
This also seems more readable and better quoted.
This makes the profiler much more useful by actually distiguishing
different derivations being evaluated. This does make the implementation
a bit more convoluted, but I think it's worth it.
This was discussed in https://github.com/NixOS/nix/issues/8034. I
personally like `PRJ_ROOT`, which hopefully avoids some ambiguity
around with subflakes.
I only implemented this for `nix fmt` because it doesn't let you point
at a flake not on your filesystem.
macOS compilation fixes
This method does *not* create a new type of goal. We instead just make
`DerivationGoal` more sophisticated, which is much easier to do now that
`DerivationBuildingGoal` has been split from it (and so many fields are
gone, or or local variables instead).
This avoids the need for a secondarily trampoline goal that interacted
poorly with `addWantedOutputs`. That, I hope, will mean the bugs from
before do not reappear.
There may in fact be a reason to introduce such a trampoline in the
future, but it would only happen in conjunction with getting rid of
`addWantedOutputs`.
Restores the functionality (and tests) that was reverted in
f4f28cdd0e.
