Refactor default.nix to use a baseTask

1 files changed, 22 insertions, 17 deletions

diff --git a/default.nix b/default.nix
index 9ce1e8a..b6e85bd 100644
--- a/default.nix
+++ b/default.nix
@@ -1,35 +1,40 @@
 let
   pkgs = import <nixpkgs> {};
+  rootSrc = pkgs.nix-gitignore.gitignoreSource [] ./.;
+  baseTask = pkgs.stdenv.mkDerivation {
+    name = "dotfiles-task";
+    src = rootSrc;
+    buildInputs = [];
+    phases = "unpackPhase buildPhase";
+    buildPhase = ''
+      echo "ERROR: base task buildPhase not overriden."
+      exit 1
+    '';
+  };
 in with pkgs; with pkgs.stdenv; rec {
   subtasks = rec {
-    shellcheck = mkDerivation rec {
-      name = "dotfiles-shellcheck";
-      src = ./.;
-      phases = "unpackPhase buildPhase";
-      buildInputs = [ pkgs.shellcheck ];
+    shellcheck = baseTask.overrideAttrs(baseAttrs: {
+      name = "${baseAttrs.name}-shellcheck";
+      buildInputs = baseAttrs.buildInputs ++ [ pkgs.shellcheck ];
       buildPhase = ''
         export SHELLCHECK_OPTS="-e SC1090 -e SC1091 -e SC2139"
         ignored='(encrypted|os-installation.sh|notmuch-post.sh)'
         find . -type f -name '*.sh' | grep -E -v $ignored | xargs shellcheck
         touch $out
       '';
-    };
-    fixme = mkDerivation {
-      name = "dotfiles-fixme";
-      src = ./.;
-      phases = "unpackPhase buildPhase";
-      buildInputs = [ pkgs.ag ];
+    });
+    fixme = baseTask.overrideAttrs(baseAttrs:  {
+      name = "${baseAttrs.name}-fixme";
+      buildInputs = baseAttrs.buildInputs ++ [ ag ];
       buildPhase = ''
         ag FIXME --ignore default.nix || {
           touch $out
         }
       '';
-    };
+    });
   };
-  test = mkDerivation rec {
-    name = "dotfiles-test";
-    src = ./.;
-    phases = "unpackPhase buildPhase";
+  test = baseTask.overrideAttrs(baseAttrs: rec {
+    name = "${baseAttrs.name}-test";
     buildInputs = [
       subtasks.shellcheck
       subtasks.fixme
@@ -42,5 +47,5 @@ in with pkgs; with pkgs.stdenv; rec {
       echo "All tests passed!"
       touch $out
     '';
-  };
+  });
 }