nix: filter monocle source to avoid rebuild

change-metrics · Oct 4, 2023 · af198b3 · af198b3
1 parent d613ccf
commit af198b3
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/monocle.cabal b/monocle.cabal
@@ -10,7 +10,6 @@ maintainer:          Monocle authors <[email protected]>
 copyright:           2021,2022,2023 Monocle authors
 category:            Development
 build-type:          Simple
-extra-doc-files:     README.md
 tested-with:         GHC == 9.2.5
 extra-source-files:  schemas/monocle/config/**/*.dhall,
                      schemas/github/schema.docs.graphql,

diff --git a/nix/default.nix b/nix/default.nix
@@ -7,9 +7,20 @@ let
   else
     throw "Refusing to build from a dirty Git tree!";
 
+  src = pkgs.lib.cleanSourceWith {
+    src = self; # The original, unfiltered source
+    filter = path: type:
+      type == "directory" || (pkgs.lib.hasSuffix ".cabal" path)
+      || (pkgs.lib.hasSuffix ".hs" path) || (pkgs.lib.hasSuffix ".dhall" path)
+      || (pkgs.lib.hasSuffix ".json" path) || (pkgs.lib.hasSuffix ".yaml" path)
+      || (pkgs.lib.hasSuffix "LICENSE" path)
+      || (pkgs.lib.hasSuffix ".graphql" path);
+
+  };
+
   # Add monocle and patch broken dependency to the haskell package set
   haskellExtend = hpFinal: hpPrev: {
-    monocle = hpPrev.callCabal2nix "monocle" self { };
+    monocle = hpPrev.callCabal2nix "monocle" src { };
 
     # upgrade to bloodhound 0.20 needs some work
     bloodhound = pkgs.haskell.lib.overrideCabal hpPrev.bloodhound {