32 lines
914 B
Nix
32 lines
914 B
Nix
{ self, lib, ... }:
|
|
let
|
|
inherit (builtins) readDir pathExists;
|
|
inherit (lib) hasPrefix hasSuffix nameValuePair removeSuffix;
|
|
inherit (self.attrs) mapFilterAttrs;
|
|
in
|
|
{
|
|
# Find all nix modules in a directory, discard any prefixed with "_",
|
|
# map a function to each resulting path, and generate an attribute set
|
|
# to associate module name to resulting value.
|
|
#
|
|
# mapModules ::
|
|
# path
|
|
# (path -> any)
|
|
# attrs
|
|
mapModules = dir: fn:
|
|
mapFilterAttrs
|
|
(n: v:
|
|
v != null &&
|
|
!(hasPrefix "_" n))
|
|
(n: v:
|
|
let path = "${toString dir}/${n}"; in
|
|
if v == "directory" && pathExists "${path}/default.nix"
|
|
then nameValuePair n (fn path)
|
|
else if v == "regular" &&
|
|
n != "default.nix" &&
|
|
hasSuffix ".nix" n
|
|
then nameValuePair (removeSuffix ".nix" n) (fn path)
|
|
else nameValuePair "" null)
|
|
(readDir dir);
|
|
}
|