build: improve Xtext project isolation

* Avoid writing generated source files directly into sibling projects.
* Full project isolation cannot be enabled yet, because the frontend plugin
  still requires cross-projects task dependencies for Node.js installation.

1 files changed, 13 insertions, 1 deletions

diff --git a/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2 b/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
index d8d89173..59eba8f7 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
+++ b/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
@@ -16,16 +16,28 @@ Workflow {
                         project = StandardProjectConfig {
                                 baseName = 'language'
                                 rootPath = rootPath
+                                runtime = {
+                                        // Do not generate new files into src/main/java
+                                        src = null
+                                }
                                 runtimeTest = {
                                         enabled = true
-                                        srcGen = 'src/testFixtures/xtext-gen'
+                                        // Only generate the xtext-gen files and leave the rest of the project alone
+                                        root = null
+                                        srcGen = '${rootPath}/language/src/testFixtures/xtext-gen'
                                 }
                                 genericIde = {
                                         name = 'language-ide'
+                                        // Only generate the xtext-gen files and leave the rest of the project alone
+                                        root = null
+                                        srcGen = "${rootPath}/language/build/generated/sources/xtext/ide"
                                 }
                                 web = {
                                         enabled = true
                                         name = 'language-web'
+                                        // Only generate the xtext-gen files and leave the rest of the project alone
+                                        root = null
+                                        srcGen = "${rootPath}/language/build/generated/sources/xtext/web"
                                 }
                                 mavenLayout = true
                         }