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Eelco Dolstra ca580bec35 BinaryCacheStore: Support local caching of NARs 
This speeds up commands like "nix cat-store". For example:

  $ time nix cat-store --store https://cache.nixos.org?local-nar-cache=/tmp/nar-cache /nix/store/i60yncmq6w9dyv37zd2k454g0fkl3arl-systemd-234/etc/udev/udev.conf
  real    0m4.336s

  $ time nix cat-store --store https://cache.nixos.org?local-nar-cache=/tmp/nar-cache /nix/store/i60yncmq6w9dyv37zd2k454g0fkl3arl-systemd-234/etc/udev/udev.conf
  real    0m0.045s

The primary motivation is to allow hydra-server to serve files from S3
binary caches. Previously Hydra had a hack to do "nix-store -r
<path>", but that fetches the entire closure so is prohibitively
expensive.

There is no garbage collection of the NAR cache yet. Also, the entire
NAR is read when accessing a single member file. We could generate the
NAR listing to provide random access.

Note: the NAR cache is indexed by the store path hash, not the content
hash, so NAR caches should not be shared between binary caches, unless
you're sure that all your builds are binary-reproducible.
2017-10-17 21:15:33 +02:00
config Add config.guess, config.sub and install-sh 2013-11-25 11:26:02 +00:00
corepkgs <nix/fetchurl.nix>: Support sha512 argument 2017-07-04 14:45:50 +02:00
doc/manual Update release notes 2017-09-18 11:07:17 +02:00
maintainers Update upload-release script 2017-01-03 11:42:56 +01:00
misc docker: ensure that the installation works for users other than 'root', too 2017-10-07 17:28:34 +02:00
mk Whitespace 2017-10-09 15:41:09 +02:00
perl Replace Unicode quotes in user-facing strings by ASCII 2017-07-30 12:32:45 +01:00
scripts Pull nix-profile-daemon from 1.11 2017-10-16 14:51:39 -04:00
src BinaryCacheStore: Support local caching of NARs 2017-10-17 21:15:33 +02:00
tests Fix tests 2017-10-02 23:45:27 -04:00
.dir-locals.el Add .dir-locals.el for Emacs 2016-01-28 11:12:04 +01:00
.editorconfig Add .editorconfig 2017-06-05 22:57:28 +01:00
.gitignore Reverse retry logic to retry in all but a few cases 2017-10-02 23:22:02 -04:00
.travis.yml Test the installer 2017-07-14 12:11:04 -04:00
bootstrap.sh bootstrap: Simplify & make more robust. 2011-09-06 12:11:05 +00:00
configure.ac Add a seccomp filter to prevent creating setuid/setgid binaries 2017-05-29 16:14:10 +02:00
COPYING * Change this to LGPL to keep the government happy. 2006-04-25 16:41:06 +00:00
local.mk Allow builders to create activities 2017-08-21 12:18:46 +02:00
Makefile Remove nix-mode.el from Nix. 2017-08-19 21:16:30 -07:00
Makefile.config.in Add --with-sandbox-shell configure flag 2017-05-15 17:36:32 +02:00
nix.spec.in Remove nix-mode.el from Nix. 2017-08-19 21:16:30 -07:00
README.md Fix minor grammatical nitpick ("it's" vs. "its") in README.md. 2017-03-22 10:11:23 -04:00
release-common.nix release-common: Fix busybox builtins (busybox >= 1.27) 2017-10-07 07:43:55 -05:00
release.nix fixing bashisms in test code 2017-10-06 06:12:33 -05:00
shell.nix Allow builders to create activities 2017-08-21 12:18:46 +02:00
version Bump 2016-01-20 16:34:37 +01:00

README.md

Nix, the purely functional package manager

Nix is a new take on package management that is fairly unique. Because of its purity aspects, a lot of issues found in traditional package managers don't appear with Nix.

To find out more about the tool, usage and installation instructions, please read the manual, which is available on the Nix website at http://nixos.org/nix/manual.

Contributing

Take a look at the Hacking Section of the manual. It helps you to get started with building Nix from source.

License

Nix is released under the LGPL v2.1

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit.