This improves error messages when a set or a list is used where a path
was expected. For an example, if you used a package set (as opposed to a
single package) in systemPackages before this commit, the error was:
```
cannot coerce a list to a string, at "/home/nixpkgs/lib/types.nix":103:37
```
Now, the error message reads:
```
The option value `environment.systemPackages' in `/etc/nixos/configuration.nix' is not a list of paths.
```
For example, this allows writing
nix.package = /nix/store/786mlvhd17xvcp2r4jmmay6jj4wj6b7f-nix-1.10pre4206_896428c;
Also, document types.package in the manual.
vicious is a module for creating widgets on window managers.
This commit adds the library and a wrapper lua file for easy importing.
I use the library with the awesome window manager via luaModules:
services.xserver.windowManager.awesome.luaModules = [
pkgs.luaPackages.vicious
];
This is like callPackageWith, except that it expects the supplied
function to return a *set* of packages. It will then make the
individual packages overridable.
It's unused, and also a bad idea: because it recursively recomputes
every function argument and there is no sharing, you can get an
exponential (?) blowup in evaluation time. For example, evaluating
‘linuxPackages.kernel’ takes 0.09s and ~13 MiB, but evaluating
‘linuxPackages.kernel.deepOverride {}’ takes 3.6s and ~305 MiB.
The notion (not-ion) window manager [1], plus optional (defaulted to
true) Xft/pango support (via [2]). Defined a license (notion uses a
modified LGPL).
As per [3], changes:
1. renamed option from pango -> xft, better to reflect the actual
nature of the patch;
2. modified the patch to replace the postPatch changes to system-autodeteck.mk;
3. commited the patch to the nixpkgs repo;
4. removed 'fallbackFont' as an option. Use a sensible default, instead.
Many stylistic changes, thanks to @lethalman.
[1] http://notion.sourceforge.net
[2] http://sourceforge.net/p/notion/feature-requests/47/
[3] https://github.com/NixOS/nixpkgs/pull/8789
