generate complete eclipse configuration from 'gradle eclipse'

build.gradle

@@ -181,10 +181,16 @@ allprojects {
   task cleanEclipseSettings(type: Delete) {
     delete '.settings'
   }
+  task copyEclipseSettings(type: Copy) {
+    // TODO: "package this up" for external builds
+    from new File(project.rootDir, 'buildSrc/src/main/resources/eclipse.settings')
+    into '.settings'
+  }
   // otherwise .settings is not nuked entirely
   tasks.cleanEclipse.dependsOn(cleanEclipseSettings)
   // otherwise the eclipse merging is *super confusing*
   tasks.eclipse.dependsOn(cleanEclipse)
+  tasks.eclipse.dependsOn(copyEclipseSettings)
 }
 
 

buildSrc/src/main/resources/eclipse.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,6 @@
+eclipse.preferences.version=1
+encoding//src/main/java=UTF-8
+encoding//src/main/resources=UTF-8
+encoding//src/test/java=UTF-8
+encoding//src/test/resources=UTF-8
+encoding/<project>=UTF-8

buildSrc/src/main/resources/eclipse.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,19 @@
+eclipse.preferences.version=1
+
+# previous configuration from maven build
+# this is merged with gradle's generated properties during 'gradle eclipse'
+
+org.eclipse.jdt.core.compiler.annotation.inheritNullAnnotations=enabled
+org.eclipse.jdt.core.compiler.annotation.missingNonNullByDefaultAnnotation=ignore
+org.eclipse.jdt.core.compiler.annotation.nullable=org.elasticsearch.common.Nullable
+org.eclipse.jdt.core.compiler.annotation.nullanalysis=enabled
+org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
+org.eclipse.jdt.core.compiler.problem.nonnullParameterAnnotationDropped=warning
+org.eclipse.jdt.core.compiler.problem.nullAnnotationInferenceConflict=warning
+org.eclipse.jdt.core.compiler.problem.nullReference=warning
+org.eclipse.jdt.core.compiler.problem.nullSpecViolation=warning
+org.eclipse.jdt.core.compiler.problem.nullUncheckedConversion=warning
+org.eclipse.jdt.core.compiler.problem.potentialNullReference=warning
+org.eclipse.jdt.core.formatter.lineSplit=140
+org.eclipse.jdt.core.formatter.tabulation.char=space
+org.eclipse.jdt.core.formatter.tabulation.size=4