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Jan Malakhovski d1d5ecb3bf stdenv: perform checks only when evaluating .drv and .out

This pushes check-meta evaluation to derivation evaluation step, leaving all other
attributes accessible.

Before this commit:

> $ HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate --eval --strict ./default.nix -A xen --argstr system aarch64-linux
> Package ‘xen-4.5.5’ in pkgs/applications/virtualization/xen/generic.nix:226 is not supported on ‘aarch64-linux’, refusing to evaluate.

as expected

> $ HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate --eval --strict ./default.nix -A xen.name --argstr system aarch64-linux
> Package ‘xen-4.5.5’ in pkgs/applications/virtualization/xen/generic.nix:226 is not supported on ‘aarch64-linux’, refusing to evaluate.

> $ HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate --eval --strict ./default.nix -A xen.meta.description --argstr system aarch64-linux
> Package ‘xen-4.5.5’ in pkgs/applications/virtualization/xen/generic.nix:226 is not supported on ‘aarch64-linux’, refusing to evaluate.

which is unfortunate since its impossible to use packages in autogenerated
documentation on all platforms.

After this commit:

> $ HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate --eval --strict ./default.nix -A xen --argstr system aarch64-linux

still fails

> $ HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate --eval --strict ./default.nix -A xen.name --argstr system aarch64-linux
> "xen-4.5.5"

> $ HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate --eval --strict ./default.nix -A xen.meta.description --argstr system aarch64-linux
> "Xen hypervisor and related components (vanilla)"

2018-01-03 12:20:25 +00:00

.github

CODEOWNERS: Add me, @Ericson2314, to a few things

2017-12-18 19:00:43 -05:00

doc

Merge pull request #26805 from obsidiansystems/cross-elegant

2017-12-30 22:58:02 -05:00

lib

lib: generalize addPassthru to extendDerivation

2018-01-03 12:20:24 +00:00

maintainers/scripts

update-python-libraries: commit updates and specify update kind

2017-12-30 12:15:19 +01:00

nixos

nixos/dkimproxy-out: init (#33229 )

2018-01-03 01:23:02 +00:00

pkgs

stdenv: perform checks only when evaluating .drv and .out

2018-01-03 12:20:25 +00:00

.editorconfig

Do not trim trailing whitespace in patch files

2017-01-12 23:44:26 +01:00

.gitignore

kde5: consolidate packages into desktops/kde-5

2016-03-01 10:36:00 -06:00

.version

Impala makes packaging a life-long addiction

2017-08-30 23:13:56 +02:00

COPYING

COPYING: there are no more bootstrap binaries in Nixpkgs tree

2017-11-08 14:56:02 +01:00

default.nix

default.nix: Provide correct instructions how to upgrade Nix

2017-03-18 21:04:07 +02:00

README.md

README: Use HTTPS for all hyperlinks

2017-11-22 19:51:40 +01:00

README.md

Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:

% git remote add channels git://github.com/NixOS/nixpkgs-channels.git

For stability and maximum binary package support, it is recommended to maintain custom changes on top of one of the channels, e.g. nixos-17.09 for the latest release and nixos-unstable for the latest successful build of master:

% git remote update channels
% git rebase channels/nixos-17.09

For pull-requests, please rebase onto nixpkgs master.

NixOS Linux distribution source code is located inside nixos/ folder.

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