pub-solar-os/lib/devos/mkProfileAttrs.nix
Pacman99 8ab865a853 lib/mkProfileAttrs: don't change to path
store paths can't be appended to a path
2021-03-29 09:05:54 -07:00

36 lines
768 B
Nix

{ lib, ... }:
let mkProfileAttrs =
/**
Synopsis: mkProfileAttrs _path_
Recursively collect the subdirs of _path_ containing a default.nix into attrs.
This sets a contract, eliminating ambiguity for _default.nix_ living under the
profile directory.
Example:
let profiles = mkProfileAttrs ./profiles; in
assert profiles ? core.default; 0
**/
dir:
let
imports =
let
files = builtins.readDir dir;
p = n: v:
v == "directory"
&& n != "profiles";
in
lib.filterAttrs p files;
f = n: _:
lib.optionalAttrs
(lib.pathExists "${dir}/${n}/default.nix")
{ default = "${dir}/${n}"; }
// mkProfileAttrs "${dir}/${n}";
in
lib.mapAttrs f imports;
in mkProfileAttrs