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Matthieu Coudron 6920c23701 Improve error message for conflicting priorities
I find the error message 'nix-env --set-flag priority NUMBER PKGNAME'
not as helpful as it could be :
- doesn't share the current priorities
- doesn't say that the command must be run on the already installed
PKGNAME (which is confusing the first time)
- the doc needs careful reading:
"If there are multiple derivations matching a name in args that have the same name (e.g., gcc-3.3.6 and gcc-4.1.1), then the derivation with the highest priority is used."
if one stops reading there, he is screwed. Salvation comes with reading "A derivation can define a priority by declaring the meta.priority attribute. This attribute should be a number, with a higher value denoting a lower priority. The default priority is 0."
To sum it up, lower number wins. I tried to convey this idea in the
message too.
2017-09-21 10:25:20 +09:00
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: update to Nix 1.11.14 2017-09-11 14:26:14 +02:00
mk set _GNU_SOURCE on cygwin 2017-04-21 11:27:27 -03:00
perl Replace Unicode quotes in user-facing strings by ASCII 2017-07-30 12:32:45 +01:00
scripts Rename a few configuration options 2017-08-31 14:28:25 +02:00
src Improve error message for conflicting priorities 2017-09-21 10:25:20 +09:00
tests Rename a few configuration options 2017-08-31 14:28:25 +02:00
.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 Always use the Darwin sandbox 2017-06-06 18:44:49 +02:00
.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 Only pass --with-sandbox-shell on Linux 2017-05-30 15:56:15 +02:00
release.nix Remove Debian 8 and Ubuntu 14.10 2017-09-14 18:56:33 +02:00
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

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.