1 files changed, 39 insertions, 0 deletions
diff --git a/src/main/groovy/frege/gradle/ReplTask.groovy b/src/main/groovy/frege/gradle/ReplTask.groovy
new file mode 100644
index 0000000..1f570eb
--- /dev/null
+++ b/src/main/groovy/frege/gradle/ReplTask.groovy
@@ -0,0 +1,39 @@
+package frege.gradle
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.internal.file.FileResolver
+import org.gradle.api.tasks.*
+import org.gradle.process.internal.DefaultJavaExecAction
+import org.gradle.process.internal.JavaExecAction
+
+class ReplTask extends DefaultTask {
+
+    static String DEFAULT_SRC_DIR        = "src/main/frege"     // TODO: should this come from a source set?
+    static String DEFAULT_CLASSES_SUBDIR = "classes/main"       // TODO: should this come from a convention?
+
+    @Optional @InputDirectory
+    File sourceDir = new File(project.projectDir, DEFAULT_SRC_DIR).exists() ?  new File(project.projectDir, DEFAULT_SRC_DIR) : null
+
+    @Optional @OutputDirectory
+    File targetDir = new File(project.buildDir, DEFAULT_CLASSES_SUBDIR)
+
+    @TaskAction
+    void openFregeRepl() {
+
+        if (sourceDir != null && !sourceDir.exists() ) {
+            def currentDir = new File('.')
+            logger.info "Intended source dir '${sourceDir.absolutePath}' doesn't exist. Using current dir '${currentDir.absolutePath}' ."
+            sourceDir = currentDir
+        }
+
+        FileResolver fileResolver = getServices().get(FileResolver.class)
+        JavaExecAction action = new DefaultJavaExecAction(fileResolver)
+        action.setMain("frege.repl.FregeRepl")
+        action.workingDir = sourceDir ?: project.projectDir
+        action.standardInput = System.in
+        action.setClasspath(project.files(project.configurations.runtime ) + project.files(targetDir.absolutePath))
+
+        action.execute()
+    }
+
+}
+\ No newline at end of file