ensure pkgs/default.nix is up to date

.travis.yml

@@ -5,6 +5,8 @@ env:
 
 install:
   - nix-env -iA nixopsUnstable -f '<nixpkgs>'
+  - echo "binary-caches = https://cache.nixos.org https://hydra.iohk.io https://hydra.angeldsis.com" > ~/nix.conf
+  - echo "binary-cache-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" > ~/nix.conf
   - touch static/datadog-{api,application}.secret
   - echo "secret" > static/tarsnap-cardano-deployer.secret
   - mkdir keys
@@ -31,6 +33,7 @@ script:
   - nixops deploy -d csl-explorer-staging --evaluate-only --show-trace
   - nixops deploy -d tw --evaluate-only --show-trace
   - nixops deploy -d inf --evaluate-only --show-trace
+  - nix-shell -p cabal2nix stack cabal -Q -j 4 --run scripts/check-stack2nix.sh
 
 notifications:
   email: false

default.nix

@@ -11,7 +11,7 @@ let
     configureFlags = flags;
   });
   socket-io-src = pkgs.fetchgit (removeAttrs (importJSON ./pkgs/engine-io.json) ["date"]);
-in (import pkgs/default.nix { inherit pkgs compiler; }).override {
+in ((import pkgs/default.nix { inherit pkgs compiler; }).override {
   overrides = self: super: {
     cardano-sl-core = prodMode super.cardano-sl-core;
     cardano-sl = overrideCabal super.cardano-sl (drv: {
@@ -52,4 +52,7 @@ in (import pkgs/default.nix { inherit pkgs compiler; }).override {
     #enableLibraryProfiling = false;
     #});
   };
+}) // {
+  # extra packages to expose, that have no relation to pkgs/default.nix
+  stack2nix = compiler.callPackage ./pkgs/stack2nix.nix {};
 }

jobsets/cardano.nix

@@ -5,8 +5,7 @@ with pkgs;
 let
   iohkpkgs = import ./../default.nix {};
 in rec {
-  inherit (iohkpkgs) cardano-report-server-static cardano-sl-static cardano-sl-explorer-static cardano-sl;
-  stack2nix = iohkpkgs.callPackage ./../pkgs/stack2nix.nix {};
+  inherit (iohkpkgs) cardano-report-server-static cardano-sl-static cardano-sl-explorer-static cardano-sl stack2nix;
   cardano-node-image = (import <nixpkgs/nixos/lib/eval-config.nix> {
     system = "x86_64-linux";
     modules = [

pkgs/default.nix

@@ -3448,8 +3448,8 @@ self: {
           pname = "exceptions";
           version = "0.8.3";
           sha256 = "1gl7xzffsqmigam6zg0jsglncgzxqafld2p6kb7ccp9xirzdjsjd";
-          revision = "1";
-          editedCabalFile = "fc13261461399b8610d60468757f2fc0a62ed660dee998f4329e33dd76d2191b";
+          revision = "2";
+          editedCabalFile = "dc2b4ed2a3de646d8ff599ff972e25b3a1a5165ead3a46ff84a3d443814c85ee";
           libraryHaskellDepends = [
             base
             mtl
@@ -5454,6 +5454,8 @@ self: {
           pname = "natural-transformation";
           version = "0.4";
           sha256 = "1by8xwjc23l6pa9l4iv7zp82dykpll3vc3hgxk0pgva724n8xhma";
+          revision = "1";
+          editedCabalFile = "83bedd2c7b0e4f8819753d2075036d99483d33bfdd3ba8889cf61fa05fa89ce9";
           libraryHaskellDepends = [
             base
           ];

scripts/check-stack2nix.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+
+# Get relative path to script directory
+set -xe
+scriptDir=$(dirname -- "$(readlink -f -- "${BASH_SOURCE[0]}")")
+
+time nix-build -A stack2nix -o $scriptDir/stack2nix -Q -j 4
+
+time $scriptDir/stack2nix/bin/stack2nix --revision 4bcf1e6b601d531f753ebdb6aec23e19d4b08e6c https://github.com/input-output-hk/cardano-sl.git > $scriptDir/default-2.nix
+diff -u pkgs/default.nix $scriptDir/default-2.nix