Merge pull request #723 from input-output-hk/serge/nix-shell-almost

nix-shell, almost

.gitignore

@@ -21,6 +21,7 @@ dist/
 *.swp
 *.swo
 *~
+\#*
 *_flymake.hs
 result*
 **/tags

default.nix

@@ -1,4 +1,6 @@
-{ customConfig ? {}, ... }:
+{ customConfig ? {}
+, withHoogle ? true
+, ... }:
 #
 # The default.nix file. This will generate targets for all
 # buildables (see release.nix for nomenclature, excluding
@@ -52,7 +54,7 @@ let
   documents = import ./doc/default.nix {inherit commonLib; };
 in {
   inherit scripts tests;
-  inherit (nixTools) nix-tools;
+  inherit (nixTools) nix-tools shell;
   network-pdf-wip = documents.network-pdf-wip;
   network-pdf = documents.network-pdf;
 }

nix/nix-tools.nix

@@ -1,6 +1,27 @@
-{ ... }@args:
+{ withHoogle ? true
+, ... }@args:
 
 let
   commonLib = import ./iohk-common.nix;
-
-in commonLib.nix-tools.default-nix ./pkgs.nix args
+  pkgs      = commonLib.nix-tools.default-nix ./pkgs.nix args;
+in pkgs // {
+  shell = pkgs.nix-tools.shellFor {
+    inherit withHoogle;
+    packages = pkgs: with pkgs; [
+      io-sim
+      io-sim-classes
+      ouroboros-consensus
+      ouroboros-network
+      typed-transitions
+    ];
+    buildInputs = with pkgs.nix-tools._raw; [
+      cabal-install.components.exes.cabal
+      commonLib.stack-hpc-coveralls
+    ] ++ (with commonLib.pkgs; [
+      git
+      pkgconfig
+      stack
+      systemd
+    ]);
+  };
+}

release.nix

@@ -67,6 +67,7 @@ commonLib.pkgs.lib.mapAttrsRecursiveCond
     network-pdf-wip = default.network-pdf-wip;
     network-pdf = default.network-pdf;
   };
+  builds-on-supported-systems = [ "shell" ];
   required-targets = jobs: [
     # targets are specified using above nomenclature:
     jobs.nix-tools.tests.ouroboros-consensus.test-consensus.x86_64-linux

shell.nix

@@ -0,0 +1,3 @@
+{ withHoogle ? true
+}:
+(import ./default.nix { inherit withHoogle; }).shell