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gives 2-5% performance improvement across a board of tests.
LTO is broken when using clang; some libs link fine while others crash
the linker with a segfault in the llvm linker plugin. đ
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The uninstall instructions used to accidentally remove the nix-darwin
LaunchDaemon, this was dropped. However, the original intent was to
remove the Store volume mounting LaunchDaemon.
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Clarify that `/nix` being present after the uninstall is normal and it
will only disappear after a reboot.
Co-authored-by: Travis A. Everett <travis.a.everett@gmail.com>
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Replace defaultBla.$system with bla.$system.default
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Make it explicit that it only includes the existing outputs and not the ones that havenât been realised
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The multi-user installation on macOS, which is now the only option, has
gotten complicated enough that it discourages some users from checking
Nix out for fear of being left with a "dirty" system. Detailed
uninstallation instructions should make this less of an issue.
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Fixes #5952.
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Correct `NIX_BUILD_PATH` default description
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Source: https://github.com/NixOS/nix/blob/067076287bf601f8fa2ffe4feff3057b96fa5be8/src/nix-build/nix-build.cc#L362-L381
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This documents 3023c7700.
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Fixes #5222.
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flakes: search up to git or filesystem boundary
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Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
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Since
https://github.com/NixOS/nix/commit/00d25e84577659ccf0bc360c61c47b6cd25d1c26
which was first included in nix 2.4.
It is a backwards-compatible change since the flag will just be
ignored.
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The logical implication operator is included in this section but never explained. It might stump new readers with a pretty uncommon operator, and it's never referenced explicitly.
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nixpkgs can save a good bit of eval memory with this primop. zipAttrsWith is
used quite a bit around nixpkgs (eg in the form of recursiveUpdate), but the
most costly application for this primop is in the module system. it improves
the implementation of zipAttrsWith from nixpkgs by not checking an attribute
multiple times if it occurs more than once in the input list, allocates less
values and set elements, and just avoids many a temporary object in general.
nixpkgs has a more generic version of this operation, zipAttrsWithNames, but
this version is only used once so isn't suitable for being the base of a new
primop. if it were to be used more we should add a second primop instead.
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Resolves #5767
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We also need to build impurely or the <nixpkgs> lookup will not work.
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The old link returned 404 errror.
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document some darwin mount settings
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Add a :log command that shows logs for a derivation.
Closes https://github.com/NixOS/nix/issues/3504
Co-authored-by: Taeer Bar-Yam <taeer@bar-yam.me>
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While parsing a flakeref, upon not finding a flake.nix, search upwards
until git or filesystem boundary.
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Introduce `builtins.groupBy` primop
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`docker -ti run nixos` does not run on docker version 20.10.7 (my machine). This fixes it to read `docker run -ti nixos`.
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This function is very useful in nixpkgs, but its implementation in Nix
itself is rather slow due to it requiring a lot of attribute set and
list appends.
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Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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