0a7746603e
it can be replaced with StringToken if we add another bit if information to StringToken, namely whether this string should take part in indentation scanning or not. since all escaping terminates indentation scanning we need to set this bit only for the non-escaped IND_STRING rule. this improves performance by about 1%. before nix search --no-eval-cache --offline ../nixpkgs hello Time (mean ± σ): 8.880 s ± 0.048 s [User: 6.809 s, System: 1.643 s] Range (min … max): 8.781 s … 8.993 s 20 runs nix eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix Time (mean ± σ): 375.0 ms ± 2.2 ms [User: 339.8 ms, System: 35.2 ms] Range (min … max): 371.5 ms … 379.3 ms 20 runs nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system' Time (mean ± σ): 2.831 s ± 0.040 s [User: 2.536 s, System: 0.225 s] Range (min … max): 2.769 s … 2.912 s 20 runs after nix search --no-eval-cache --offline ../nixpkgs hello Time (mean ± σ): 8.832 s ± 0.048 s [User: 6.757 s, System: 1.657 s] Range (min … max): 8.743 s … 8.921 s 20 runs nix eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix Time (mean ± σ): 367.4 ms ± 3.2 ms [User: 332.7 ms, System: 34.7 ms] Range (min … max): 364.6 ms … 374.6 ms 20 runs nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system' Time (mean ± σ): 2.810 s ± 0.030 s [User: 2.517 s, System: 0.225 s] Range (min … max): 2.742 s … 2.854 s 20 runs |
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.github | ||
config | ||
contrib | ||
doc/manual | ||
m4 | ||
maintainers | ||
misc | ||
mk | ||
nix-rust | ||
perl | ||
scripts | ||
src | ||
tests | ||
.dir-locals.el | ||
.editorconfig | ||
.gitignore | ||
.version | ||
boehmgc-coroutine-sp-fallback.diff | ||
bootstrap.sh | ||
configure.ac | ||
COPYING | ||
default.nix | ||
docker.nix | ||
flake.lock | ||
flake.nix | ||
local.mk | ||
Makefile | ||
Makefile.config.in | ||
precompiled-headers.h | ||
README.md | ||
shell.nix |
Nix
Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.
Installation
On Linux and macOS the easiest way to install Nix is to run the following shell command (as a user other than root):
$ curl -L https://nixos.org/nix/install | sh
Information on additional installation methods is available on the Nix download page.
Building And Developing
See our Hacking guide in our manual for instruction on how to build nix from source with nix-build or how to get a development environment.
Additional Resources
- Nix manual
- Nix jobsets on hydra.nixos.org
- NixOS Discourse
- Matrix - #nix:nixos.org
- IRC - #nixos on libera.chat
License
Nix is released under the LGPL v2.1.