[Android] Sets up a coverage system for java using EMMA

build/android/ant/apk-instr.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Copyright (c) 2013 The Chromium Authors. All rights reserved.
+    Use of this source code is governed by a BSD-style license that can be
+    found in the LICENSE file.
+-->
+
+<project default="instr-jar">
+  <!-- options for instr-jar -->
+  <property name="input.jar.file" location="${INPUT_JAR_FILE}" />
+  <property name="output.jar.dir" location="${OUTPUT_JAR_DIR}" />
+  <property name="output.jar.final.dir" location="${OUTPUT_JAR_FINAL_DIR}" />
+  <!-- options for instr-classes -->
+  <property name="classes.dir" location="${CLASSES_DIR}" />
+  <property name="classes.final.dir" location="${CLASSES_FINAL_DIR}" />
+
+  <property name="sdk.dir" location="${ANDROID_SDK_ROOT}"/>
+
+  <property name="emma.coverage.absolute.file" location="${EMMA_COVERAGE_FILE}" />
+  <property name="emma.sources.file" location="${EMMA_SOURCES_FILE}" />
+  <property name="java.src.dir" location="${JAVA_SRC}" />
+  <property name="additional.src.dir" value="${ADDITIONAL_SRC}" />
+  <property name="generated.src.dir" value="${GENERATED_SRC}" />
+  <filelist dir="${basedir}" id="emma.sources.filelist"
+            files="${JAVA_SRC} ${ADDITIONAL_SRC} ${GENERATED_SRC}"/>
+  <pathconvert pathsep=" " property="emma.sources" refid="emma.sources.filelist" />
+
+  <!-- jar file from where emma tasks are loaded -->
+  <path id="emma.antlibs">
+    <pathelement path="${sdk.dir}/tools/lib/emma_ant.jar" />
+    <pathelement path="${sdk.dir}/tools/lib/emma.jar" />
+  </path>
+
+  <taskdef resource="emma_ant.properties" classpathref="emma.antlibs" />
+
+  <!-- Instruments the output jar for coverage testing.
+       Also writes the accompanying source dirs into emma.sources.file -->
+  <target name="instr-jar">
+    <emma enabled="true">
+      <instr mode="fullcopy"
+             instrpath="${input.jar.file}"
+             outdir="${output.jar.dir}"
+             metadatafile="${emma.coverage.absolute.file}">
+        <!-- TODO(gkanwar): Filter things here -->
+      </instr>
+    </emma>
+    <!-- This is needed because instr fullcopy creates a 'lib' folder under the
+         destination, and we need to move the jar out of that -->
+    <copy todir="${output.jar.final.dir}">
+      <fileset dir="${output.jar.dir}/lib" />
+    </copy>
+    <echo file="${emma.sources.file}">${emma.sources}</echo>
+  </target>
+  <!-- Instruments the output classes for coverage testing.
+       Also writes the accompanying source dirs into emma.sources.file -->
+  <target name="instr-classes">
+    <emma enabled="true">
+      <instr mode="copy"
+             instrpath="${classes.dir}"
+             outdir="${classes.final.dir}"
+             metadatafile="${emma.coverage.absolute.file}">
+        <!-- TODO: Filter things here -->
+      </instr>
+    </emma>
+    <echo file="${emma.sources.file}">${emma.sources}</echo>
+  </target>
+</project>