separate distro zip from libs export assembly

some generalization to make files reusable in other extensions

devel-libs.xml

@@ -0,0 +1,27 @@
+<assembly xmlns="http://maven.apache.org/ASSEMBLY/2.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.1.0 http://maven.apache.org/xsd/assembly-2.1.0.xsd">
+  <id>devel libs dir</id>
+  <formats>
+    <!-- for development purposes -->
+    <format>dir</format>
+  </formats>
+  <includeBaseDirectory>false</includeBaseDirectory>
+  <dependencySets>
+    <dependencySet>
+      <!--
+        place runtime deps in target/libs/ to be avail for IDE development
+        e.g. in Eclipse compile the extension and run OJ with program arguments
+        -limit-ext-lookup false
+        -extensions-directory "${workspace_loc:<extension_project>}/target/classes"
+        -jars-directory "${workspace_loc:<extension_project>}/target/libs"
+      -->
+      <scope>runtime</scope>
+      <useTransitiveFiltering>true</useTransitiveFiltering>
+      <useProjectArtifact>false</useProjectArtifact>
+      <excludes>
+        <exclude>org.openjump:OpenJUMP</exclude>
+      </excludes>
+    </dependencySet>
+  </dependencySets>
+</assembly>

distro-zip.xml

@@ -4,20 +4,20 @@
   <id>distro zip</id>
   <formats>
     <format>zip</format>
-    <!-- for development purposes -->
-    <format>dir</format>
   </formats>
   <includeBaseDirectory>false</includeBaseDirectory>
   <dependencySets>
     <dependencySet>
+      <!-- place extension jar in folder root to be parsed by OJ -->
       <outputDirectory>/</outputDirectory>
       <useTransitiveFiltering>false</useTransitiveFiltering>
       <includes>
-        <include>*:bsheditor-extension</include>
+        <include>${artifact}</include>
       </includes>
     </dependencySet>
     <dependencySet>
-      <outputDirectory>/lib</outputDirectory>
+      <!-- place deps in a extension specific subfolder -->
+      <outputDirectory>/${project.build.finalName}</outputDirectory>
       <unpack>false</unpack>
       <scope>runtime</scope>
       <useTransitiveFiltering>true</useTransitiveFiltering>

pom.xml

@@ -56,6 +56,23 @@
                 <descriptors>
                   <descriptor>distro-zip.xml</descriptor>
                 </descriptors>
+                <attach>false</attach>
+              </configuration>
+              <goals>
+                <goal>single</goal>
+              </goals>
+            </execution>
+            <execution>
+              <!-- fix "not covered by lifecycle configuration" Eclipse issue -->
+              <?m2e execute onConfiguration,onIncremental?>
+              <id>devel libs dir</id>
+              <phase>process-resources</phase>
+              <configuration>
+                <descriptors>
+                  <descriptor>devel-libs.xml</descriptor>
+                </descriptors>
+                <finalName>libs</finalName>
+                <attach>false</attach>
               </configuration>
               <goals>
                 <goal>single</goal>