build: fix testFixtures classpath in eclipse

1 files changed, 31 insertions, 0 deletions

diff --git a/buildSrc/src/main/groovy/refinery-java-test-fixtures.gradle b/buildSrc/src/main/groovy/refinery-java-test-fixtures.gradle
new file mode 100644
index 00000000..326fa868
--- /dev/null
+++ b/buildSrc/src/main/groovy/refinery-java-test-fixtures.gradle
@@ -0,0 +1,31 @@
+plugins {
+        id 'java-test-fixtures'
+        id 'refinery-java-conventions'
+}
+
+eclipse.classpath {
+        containsTestFixtures = true
+
+        file.whenMerged { classpath ->
+                def hasTest = classpath.entries.any { entry ->
+                        entry in org.gradle.plugins.ide.eclipse.model.AbstractClasspathEntry &&
+                        entry.entryAttributes['gradle_scope'] == 'test'
+                }
+                for (entry in classpath.entries) {
+                        // Workaround https://github.com/gradle/gradle/issues/11845 based on
+                        // https://discuss.gradle.org/t/gradle-used-by-scope-not-correctly-generated-when-the-java-test-fixtures-plugin-is-used/39935/2
+                        if (entry in org.gradle.plugins.ide.eclipse.model.AbstractClasspathEntry) {
+                                def usedBy = new LinkedHashSet(
+                                        Arrays.asList((entry.entryAttributes['gradle_used_by_scope'] ?: '').split(','))
+                                )
+                                if (usedBy.contains('main')) {
+                                        usedBy += 'testFixtures'
+                                }
+                                if (hasTest && usedBy.contains('testFixtures')) {
+                                        usedBy += 'test'
+                                }
+                                entry.entryAttributes['gradle_used_by_scope'] = usedBy.join(',')
+                        }
+                }
+        }
+}