Add doc buildInput when bootstrapping a minimal project

Author: sd234678

.last-exported-commit

@@ -1 +1 @@
-Last exported commit from parent repo: feecef05e61bf44eb9046aa4965a0e524c030b49
+Last exported commit from parent repo: c58d54d0c146e49fa02187ecd9ba2a524818de66

nix-bootstrap.cabal

@@ -5,7 +5,7 @@ cabal-version: 2.0
 -- see: https://github.com/sol/hpack
 
 name:           nix-bootstrap
-version:        2.2.2.2
+version:        2.2.3.0
 author:         gchquser
 maintainer:     48051938+sd234678@users.noreply.github.com
 copyright:      Crown Copyright

package.yaml

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 name: nix-bootstrap
-version: 2.2.2.2
+version: 2.2.3.0
 author: gchquser
 maintainer: 48051938+sd234678@users.noreply.github.com
 copyright: Crown Copyright

src/Bootstrap/Nix/Expr/BuildInputs.hs

@@ -16,6 +16,7 @@ import Bootstrap.Nix.Expr
     Expr (EGrouping, EList, EWith),
     IsNixExpr (toNixExpr),
     nix,
+    nixbinding,
     nixproperty,
     (|++),
     (|=),
@@ -57,7 +58,11 @@ buildInputsBindings :: (HasProjectSuperType t) => BuildInputSpec t -> [Binding]
 buildInputsBindings spec@BuildInputSpec {bisNativeNixpkgsPackages} =
   catMaybes
     [ case buildInputGroupExprs of
-        [] -> Nothing
+        [] ->
+          Just
+            [nixbinding|buildInputs = [
+            # Insert any dependencies that should exist in the dev shell environment here
+          ];|]
         [buildInputGroupExpr1] ->
           Just $ [nixproperty|buildInputs|] |= buildInputGroupExpr1
         (buildInputGroupExpr1 : otherBuildInputGroupExprs) ->

test/Bootstrap/Nix/Expr/MkShellSpec.hs

@@ -23,6 +23,9 @@ spec = do
     it "gives no shell hook when one isn't needed" do
       mkShell (BuildInputSpec [] [] (PreCommitHooksConfig False) Minimal [])
         `shouldBe` [nix|nixpkgs.mkShell {
+  buildInputs = [
+    # Insert any dependencies that should exist in the dev shell environment here
+  ];
 }|]
     it "gives a proper shell hook for projects with pre-commit hooks" do
       mkShell (BuildInputSpec [] [] (PreCommitHooksConfig True) Minimal [])
@@ -33,6 +36,9 @@ spec = do
     it "gives a proper shell hook for Rust projects" do
       mkShell (BuildInputSpec [] [] (PreCommitHooksConfig False) Rust [])
         `shouldBe` [nix|nixpkgs.mkShell {
+  buildInputs = [
+    # Insert any dependencies that should exist in the dev shell environment here
+  ];
   shellHook = ''
     export RUST_SRC_PATH=${nixpkgs.rustPlatform.rustLibSrc}
   '';