Back off Maven template run and build from Rake

There's a lot of chicken-and-egg issues with trying to have Maven
do all the steps for the Java artifact builds right now, so back
off and require that templates (and WASM) are generated before the
Maven builds of the relevant modules.

Author: headius

Rakefile

@@ -43,7 +43,7 @@ elsif RUBY_ENGINE == "jruby"
   # This compiles java to make sure any templating changes produces valid code.
   Rake::JavaExtensionTask.new(:compile) do |ext|
     ext.name = "prism"
-    ext.ext_dir = "java"
+    ext.ext_dir = "java/api"
     ext.lib_dir = "tmp"
     ext.release = "21"
     ext.gem_spec = Gem::Specification.load("prism.gemspec")

java/api/pom.xml

@@ -9,84 +9,21 @@
   </parent>
 
   <artifactId>prism-parser-api</artifactId>
-  <name>Java Prism API</name>
+  <name>Java Prism</name>
   <description>Java API for the Prism Ruby language parser</description>
   <url>https://github.com/ruby/prism</url>
 
-  <repositories>
-    <repository>
-      <id>mavengems</id>
-      <url>mavengem:https://rubygems.org</url>
-    </repository>
-  </repositories>
-
   <dependencies>
     <dependency>
       <groupId>org.ruby-lang</groupId>
       <artifactId>prism-parser-native</artifactId>
       <version>0.0.2-SNAPSHOT</version>
       <scope>provided</scope>
     </dependency>
-    <dependency>
-      <groupId>rubygems</groupId>
-      <artifactId>rake</artifactId>
-      <version>13.0.3</version>
-      <type>gem</type>
-    </dependency>
-    <dependency>
-      <groupId>rubygems</groupId>
-      <artifactId>rake-compiler</artifactId>
-      <version>1.3.1</version>
-      <type>gem</type>
-    </dependency>
   </dependencies>
 
   <build>
-    <extensions>
-      <extension>
-        <groupId>org.jruby.maven</groupId>
-        <artifactId>mavengem-wagon</artifactId>
-        <version>2.0.2</version>
-      </extension>
-    </extensions>
     <plugins>
-      <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>build-helper-maven-plugin</artifactId>
-        <version>3.6.1</version>
-        <executions>
-          <execution>
-            <id>add-source</id>
-            <phase>generate-sources</phase>
-            <goals>
-              <goal>add-source</goal>
-            </goals>
-            <configuration>
-              <sources>
-                <source>target/generated-sources/java</source>
-              </sources>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
-      <plugin>
-        <groupId>org.jruby.maven</groupId>
-        <artifactId>rake-maven-plugin</artifactId>
-        <version>3.0.6</version>
-        <executions>
-          <execution>
-            <id>generate templated Java sources</id>
-            <phase>generate-sources</phase>
-            <goals>
-              <goal>rake</goal>
-            </goals>
-            <configuration>
-              <launchDirectory>${project.basedir}/../..</launchDirectory>
-              <rakeArgs>PRISM_EXCLUDE_PRETTYPRINT=1 PRISM_SERIALIZE_ONLY_SEMANTICS_FIELDS=1 templates</rakeArgs>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>templating-maven-plugin</artifactId>