1# This file provides all the buildable and cacheable packages and
 2# package outputs in your package set. These are what gets built by CI,
 3# so if you correctly mark packages as
 4#
 5# - broken (using `meta.broken`),
 6# - unfree (using `meta.license.free`), and
 7# - locally built (using `preferLocalBuild`)
 8#
 9# then your CI will be able to build and cache only those packages for
10# which this is possible.
11
12{ pkgs ? import <nixpkgs> { } }:
13
14with builtins;
15let
16  isReserved = n: n == "lib" || n == "overlays" || n == "nixosModules" || n == "homeModules" || n == "darwinModules" || n == "flakeModules";
17  isDerivation = p: isAttrs p && p ? type && p.type == "derivation";
18  isBuildable = p: let
19    licenseFromMeta = p.meta.license or [];
20    licenseList = if builtins.isList licenseFromMeta then licenseFromMeta else [licenseFromMeta];
21  in !(p.meta.broken or false) && builtins.all (license: license.free or true) licenseList;
22  isCacheable = p: !(p.preferLocalBuild or false);
23  shouldRecurseForDerivations = p: isAttrs p && p.recurseForDerivations or false;
24
25  nameValuePair = n: v: { name = n; value = v; };
26
27  concatMap = builtins.concatMap or (f: xs: concatLists (map f xs));
28
29  flattenPkgs = s:
30    let
31      f = p:
32        if shouldRecurseForDerivations p then flattenPkgs p
33        else if isDerivation p then [ p ]
34        else [ ];
35    in
36    concatMap f (attrValues s);
37
38  outputsOf = p: map (o: p.${o}) p.outputs;
39
40  nurAttrs = import ./default.nix { inherit pkgs; };
41
42  nurPkgs =
43    flattenPkgs
44      (listToAttrs
45        (map (n: nameValuePair n nurAttrs.${n})
46          (filter (n: !isReserved n)
47            (attrNames nurAttrs))));
48
49in
50rec {
51  buildPkgs = filter isBuildable nurPkgs;
52  cachePkgs = filter isCacheable buildPkgs;
53
54  buildOutputs = concatMap outputsOf buildPkgs;
55  cacheOutputs = concatMap outputsOf cachePkgs;
56}