Ensure JAVA_HOME gets set properly

Author: sd234678

.last-exported-commit

@@ -1 +1 @@
-Last exported commit from parent repo: b756d20b45f7ae3390d942dcdfef45f2678b8bf6
+Last exported commit from parent repo: 8eae127411b0436d01a8c9a17f0d842078487999

nix-bootstrap.cabal

@@ -5,7 +5,7 @@ cabal-version: 2.0
 -- see: https://github.com/sol/hpack
 
 name:           nix-bootstrap
-version:        1.5.1.1
+version:        1.5.2.0
 author:         gchquser
 maintainer:     [email protected]
 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: 1.5.1.1
+version: 1.5.2.0
 author: gchquser
 maintainer: [email protected]
 copyright: Crown Copyright

src/Bootstrap/Nix/Expr/MkShell.hs

@@ -9,7 +9,7 @@ import Bootstrap.Data.PreCommitHook
   )
 import Bootstrap.Data.ProjectType
   ( HasProjectSuperType (projectSuperType),
-    ProjectSuperType (PSTRust),
+    ProjectSuperType (PSTJava, PSTRust),
   )
 import Bootstrap.Nix.Expr
   ( Binding,
@@ -38,11 +38,14 @@ mkShell buildInputSpec@BuildInputSpec {bisPreCommitHooksConfig, bisProjectType}
 
 data ShellHook
   = ShellHookFromPreCommit
+  | ShellHookJava
   | ShellHookRust
   | ShellHookCombined (NonEmpty ShellHook)
 
 shellHookFor :: HasProjectSuperType t => PreCommitHooksConfig -> t -> Maybe ShellHook
 shellHookFor pchc pt = case (pchc, projectSuperType pt) of
+  (PreCommitHooksConfig True, PSTJava) -> Just $ ShellHookCombined (ShellHookJava :| [ShellHookFromPreCommit])
+  (PreCommitHooksConfig False, PSTJava) -> Just ShellHookJava
   (PreCommitHooksConfig True, PSTRust) -> Just $ ShellHookCombined (ShellHookRust :| [ShellHookFromPreCommit])
   (PreCommitHooksConfig False, PSTRust) -> Just ShellHookRust
   (PreCommitHooksConfig True, _) -> Just ShellHookFromPreCommit
@@ -61,5 +64,6 @@ shellHookBinding = \case
     shellHookComponentBinding :: ShellHook -> [Text]
     shellHookComponentBinding = \case
       ShellHookFromPreCommit -> ["${preCommitHooks.allHooks.shellHook}"]
+      ShellHookJava -> ["export JAVA_HOME=\"${nixpkgs.jdk}\""]
       ShellHookRust -> ["export RUST_SRC_PATH=${nixpkgs.rustPlatform.rustLibSrc}"]
       ShellHookCombined xs -> sconcat $ shellHookComponentBinding <$> xs