--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build.xml	Thu Jul 16 19:57:23 2020 -0700
@@ -0,0 +1,125 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="ImagePrep" default="help" basedir=".">
+  <!-- import all environment variables as env.* -->
+  <property environment="env"/>
+
+  <!-- ensure required environment variables are set -->
+  <macrodef name="env-require">
+    <attribute name="name"/>
+    <sequential>
+      <fail message="Environment variable @{name} not set!">
+        <condition>
+          <not><isset property="env.@{name}"/></not>
+        </condition>
+      </fail>
+    </sequential>
+  </macrodef>
+  <env-require name="JRE_HOME"/>
+  <env-require name="KOTLIN_HOME"/>
+  <env-require name="OSDEP_HOME"/>
+
+  <!-- cribbed from https://stackoverflow.com/questions/7129672/uppercase-lowercase-capitalize-an-ant-property -->
+  <scriptdef language="javascript" name="toLowerCase">
+    <attribute name="value" />
+    <attribute name="target" />
+    <![CDATA[
+      "use strict";
+      project.setProperty( attributes.get( "target" ),
+                           attributes.get( "value" ).toLowerCase() );
+    ]]>
+  </scriptdef>
+
+  <!-- Define the properties used by the build -->
+  <property name="app.name"      value="${ant.project.name}"/>
+  <property name="app.version"   value="1.00"/>
+  <property name="app.domain"    value="name.blackcap.exifwasher"/>
+  <property name="app.entry"     value="${app.domain}.MainKt"/>
+  <property name="app.copyright" value="Copyright © 2020, David W. Barts."/>
+  <toLowerCase target="lc.app.name" value="${app.name}"/>
+  <property name="jar.name"      value="${basedir}/${lc.app.name}.jar"/>
+  <property name="work.jar"      value="${basedir}/work.jar"/>
+  <property name="lib.home"      value="${basedir}/lib"/>
+  <property name="src.home"      value="${basedir}/src"/>
+  <property name="dist.home"     value="${basedir}/dist"/>
+  <property name="pf.home"       value="${basedir}/package-files"/>
+  <property name="nat.dir"       value="${src.home}/name/blackcap/exifwasher/exiv2"/>
+  <property name="bin.dir"       value="${src.home}/name/blackcap/exifwasher/binaries"/>
+  <property name="jvm.version"   value="1.8"/>
+
+  <!-- define the kotlin task -->
+  <property name="kotlin.lib" value="${env.KOTLIN_HOME}/lib"/>
+  <typedef resource="org/jetbrains/kotlin/ant/antlib.xml"
+           classpath="${kotlin.lib}/kotlin-ant.jar"/>
+
+  <!-- help message -->
+  <target name="help">
+    <echo>You can use the following targets:</echo>
+    <echo> </echo>
+    <echo>  help    : (default) Prints this message </echo>
+    <echo>  all     : Cleans, compiles, and stages application</echo>
+    <echo>  clean   : Deletes work directories</echo>
+    <echo>  compile : Compiles servlets into class files</echo>
+    <echo>  jar     : Make JAR file.</echo>
+    <echo> </echo>
+    <echo>For example, to clean, compile, and package all at once, run:</echo>
+    <echo>prompt> ant all </echo>
+  </target>
+
+  <!-- Define the CLASSPATH -->
+  <target name="classpath">
+    <path id="compile.classpath">
+      <pathelement location="${src.home}"/>
+    </path>
+  </target>
+
+  <!-- make needed directories -->
+  <target name="mkdirs">
+    <mkdir dir="${bin.dir}/${os.type}"/>
+    <mkdir dir="${dist.home}"/>
+  </target>
+
+  <!-- remove old cruft -->
+  <target name="clean">
+    <delete includeEmptyDirs="true" failonerror="false">
+      <fileset dir="${dist.home}" includes="**/*"/>
+      <fileset dir="${bin.dir}"/>
+    </delete>
+  </target>
+
+  <!-- rename files containing OS-dependant code -->
+  <target name="osdep">
+    <exec executable="${env.JRE_HOME}/bin/java" failonerror="true">
+      <arg value="-jar"/>
+      <arg file="${env.OSDEP_HOME}/osdep.jar"/>
+      <arg value="${src.home}"/>
+    </exec>
+  </target>
+
+  <!-- do everything but install -->
+  <target name="all" depends="jar"
+          description="Clean work dirs, compile, make JAR."/>
+
+  <!-- compile *.kt to *.class -->
+  <target name="compile" depends="mkdirs,osdep,classpath"
+          description="Compile Java sources to ${work.home}">
+    <kotlinc src="${src.home}" output="${work.jar}"
+             classpathref="compile.classpath">
+      <compilerarg line="-jvm-target ${jvm.version}"/>
+    </kotlinc>
+  </target>
+
+  <!-- make .jar file -->
+  <target name="jar" depends="compile" description="Create JAR file.">
+    <jar destfile="${jar.name}">
+      <manifest>
+        <attribute name="Main-Class" value="${app.entry}"/>
+      </manifest>
+      <!-- <zipgroupfileset dir="${lib.home}" includes="*.jar"/> -->
+      <zipfileset src="${work.jar}"/>
+      <zipfileset dir="${src.home}" includes="**/*.properties,**/*.html,**/*.dll,**/*.so,**/*.dylib"/>
+      <zipfileset file="${pf.home}/linux/icon_48x48.png"
+        fullpath="name/blackcap/exifwasher/icon_48x48.png"/>
+    </jar>
+  </target>
+
+</project>