[build] Excluded bootstrap project from eclipse-project-layout

build.gradle

@@ -35,7 +35,10 @@ subprojects {
 	apply from: "${rootDir}/gradle/java-compiler-settings.gradle"
 	apply from: "${rootDir}/gradle/xtend-compiler-settings.gradle"
 	apply from: "${rootDir}/gradle/maven-deployment.gradle"
-	apply from: "${rootDir}/gradle/eclipse-project-layout.gradle"
+	// The bootstrap project uses only the mwe2 source set
+	if (!name.endsWith('bootstrap')) {
+		apply from: "${rootDir}/gradle/eclipse-project-layout.gradle"
+	}
 	apply from: "${rootDir}/gradle/manifest-gen.gradle"
 	apply from: "${rootDir}/gradle/validation.gradle"
 }

org.eclipse.xtext.xtext.bootstrap/build.gradle

@@ -1,3 +1,11 @@
+/*
+ * Bootstrap project for the Xtext language. It contains an MWE2 generator workflow with
+ * dedicated configuration code. The workflow generates into the core and generic ide projects
+ * as well as the Eclipse and IDEA integration projects, which are defined in different
+ * source repositories. The path to these other repositories is assumed to be ../xtext-eclipse
+ * and ../xtext-idea, respectively.
+ */
+
 apply from: "${rootDir}/gradle/mwe2-workflows.gradle"
 
 dependencies {
@@ -9,6 +17,9 @@ dependencies {
 }
 
 sourceSets.main.java.srcDirs = []
+sourceSets.main.resources.srcDirs = []
+sourceSets.test.java.srcDirs = []
+sourceSets.test.resources.srcDirs = []
 
 sourceSets.mwe2 {
 	java.srcDir 'src'
@@ -25,3 +36,10 @@ sourcesJar.from sourceSets.mwe2.allSource
 task generateXtextLanguage(type: XtextGeneratorTask) {
 	workflow = file('src/org/eclipse/xtext/xtext/bootstrap/GenerateXtext.mwe2')
 }
+
+eclipse {
+	project {
+		natures 'org.eclipse.xtext.ui.shared.xtextNature'
+		buildCommands.add(0,new org.gradle.plugins.ide.eclipse.model.BuildCommand('org.eclipse.xtext.ui.shared.xtextBuilder'))
+	}
+}