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Ben Radford 6a8de4c9dc Avoid enumerating entire overlay store dir upfront. 
As an optimisation for LocalStore, we read all the store directory entries into
a set. Checking for membership of this set is much faster than a stat syscall.
However for LocalOverlayStore, the lower store directory is expected to contain
a vast number of entries and reading them all can take a very long time.

So instead of enumerating them all upfront, we call pathExists as needed. This
means making stat syscalls for each store path, but the upper layer is expected
to be relatively small compared to the lower store so that should be okay.
2023-08-01 12:48:02 +01:00
.github labeler.yml: tests -> with-tests 2023-06-30 15:10:07 +02:00
config Run autoupdate 2021-06-01 11:42:38 +02:00
contrib function-trace: always show the trace 2019-09-18 23:23:21 +02:00
doc Release notes 2023-07-24 17:19:31 +02:00
m4 autoconf: Fix C++17 detection not working on Ubuntu 16.04. 2019-07-03 04:32:25 +02:00
maintainers maintainers: add note on marking PRs as draft 2023-06-19 10:55:34 +02:00
misc Choose a reasonable number similar to LimitNOFile 2023-07-07 07:52:16 -07:00
mk Introduce notion of a test group, use for CA tests 2023-07-18 09:31:13 -04:00
perl Simplify ContentAddress 2023-07-07 07:30:01 -04:00
scripts Merge pull request #8512 from scarf005/install-show-uid 2023-06-15 13:49:44 +02:00
src Avoid enumerating entire overlay store dir upfront. 2023-08-01 12:48:02 +01:00
tests Avoid enumerating entire overlay store dir upfront. 2023-08-01 12:48:02 +01:00
.dir-locals.el .dir-locals.el: Set c-block-comment-prefix 2020-07-10 11:21:06 +02:00
.editorconfig Add .editorconfig 2017-06-05 22:57:28 +01:00
.gitignore Expanded test suite 2023-07-11 21:43:09 -04:00
.version Bump version 2023-05-31 17:09:38 +02:00
boehmgc-coroutine-sp-fallback.diff Always disable GC in a coroutine unless the patch is applied 2023-04-07 14:54:38 +02:00
bootstrap.sh bootstrap: Simplify & make more robust. 2011-09-06 12:11:05 +00:00
configure.ac expand on the system type in hacking guide 2023-07-19 10:37:40 +02:00
CONTRIBUTING.md CONTRIBUTING.md: add link to "good first issues" 2023-06-19 10:39:19 +02:00
COPYING * Change this to LGPL to keep the government happy. 2006-04-25 16:41:06 +00:00
default.nix add flake-compat to flake.nix and use sha256 in default.nix 2023-03-06 21:11:24 +01:00
docker.nix fix "add an option to include flake-registry..." 2023-05-16 14:35:31 +02:00
flake.lock add flake-compat to flake.nix and use sha256 in default.nix 2023-03-06 21:11:24 +01:00
flake.nix Allow tarball URLs to redirect to a lockable immutable URL 2023-06-13 14:17:45 +02:00
local.mk Enable -Werror=switch-enum 2023-04-03 18:45:20 +02:00
Makefile Merge remote-tracking branch 'upstream/master' into overlayfs-store 2023-07-19 13:29:34 -04:00
Makefile.config.in Generate API docs with Doxygen 2023-03-10 12:51:06 -05:00
precompiled-headers.h Config: Use nlohmann/json 2020-08-20 11:02:16 +02:00
README.md Improve hacking.md 2023-02-13 12:00:00 +04:00
shell.nix Remove url literals 2022-01-24 13:28:21 +01:00

README.md

Nix

Open Collective supporters Test

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 to set up a development environment and build Nix from source.

Additional Resources

License

Nix is released under the LGPL v2.1.