3 files changed, 74 insertions, 0 deletions
diff --git a/third_party/overlays/haskell/default.nix b/third_party/overlays/haskell/default.nix
index ca3a1d29830c..9282d634143c 100644
--- a/third_party/overlays/haskell/default.nix
+++ b/third_party/overlays/haskell/default.nix
@@ -34,6 +34,8 @@ in
       pa-error-tree = hsSelf.callPackage ./extra-pkgs/pa-error-tree-0.1.0.0.nix { };
       pa-field-parser = hsSelf.callPackage ./extra-pkgs/pa-field-parser-0.1.0.1.nix { };
       pa-label = hsSelf.callPackage ./extra-pkgs/pa-label-0.1.0.1.nix { };
+      pa-pretty = hsSelf.callPackage ./extra-pkgs/pa-pretty-0.1.1.0.nix { };
+      pa-json = hsSelf.callPackage ./extra-pkgs/pa-json-0.2.0.0.nix { };
     };
   };
 
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-json-0.2.0.0.nix b/third_party/overlays/haskell/extra-pkgs/pa-json-0.2.0.0.nix
new file mode 100644
index 000000000000..56ee6eb2d10c
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-json-0.2.0.0.nix
@@ -0,0 +1,43 @@
+{ mkDerivation
+, aeson
+, aeson-better-errors
+, aeson-pretty
+, base
+, bytestring
+, containers
+, hspec-core
+, hspec-expectations
+, lib
+, pa-error-tree
+, pa-label
+, pa-prelude
+, scientific
+, text
+, time
+, vector
+}:
+mkDerivation {
+  pname = "pa-json";
+  version = "0.2.0.0";
+  sha256 = "b57ef3888b8ea3230925675eccd6affbc3d296fc8762f5937435af4bdbd276e4";
+  libraryHaskellDepends = [
+    aeson
+    aeson-better-errors
+    aeson-pretty
+    base
+    bytestring
+    containers
+    hspec-core
+    hspec-expectations
+    pa-error-tree
+    pa-label
+    pa-prelude
+    scientific
+    text
+    time
+    vector
+  ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "Our JSON parsers/encoders";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-pretty-0.1.1.0.nix b/third_party/overlays/haskell/extra-pkgs/pa-pretty-0.1.1.0.nix
new file mode 100644
index 000000000000..d6dadef849a1
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-pretty-0.1.1.0.nix
@@ -0,0 +1,29 @@
+{ mkDerivation
+, aeson
+, aeson-pretty
+, ansi-terminal
+, base
+, hscolour
+, lib
+, nicify-lib
+, pa-prelude
+, text
+}:
+mkDerivation {
+  pname = "pa-pretty";
+  version = "0.1.1.0";
+  sha256 = "da925a7cf2ac49c5769d7ebd08c2599b537efe45b3d506bf4d7c8673633ef6c9";
+  libraryHaskellDepends = [
+    aeson
+    aeson-pretty
+    ansi-terminal
+    base
+    hscolour
+    nicify-lib
+    pa-prelude
+    text
+  ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "Some pretty-printing helpers";
+  license = lib.licenses.bsd3;
+}