Add go based launcher

The compiled, static binaries are used instead of a python script.
This is drop-in replacement with the same configuration/usage.
Implementation is covered by tests to ensure compatibility.

Co-authored-by: Jan Waś <[email protected]>

.github/workflows/ci.yml

@@ -20,6 +20,11 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java-version }}
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.23'
+          cache: false
       - name: Maven Install
         run: ./mvnw install -B -V -DskipTests -Dair.check.skip-all
       - name: Maven Tests

launcher/.gitignore

@@ -0,0 +1,2 @@
+cover.out
+src/main/resources/binaries/**/launcher2

launcher/pom.xml

@@ -17,6 +17,46 @@
 
     <build>
         <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>3.5.0</version>
+                <executions>
+                    <execution>
+                        <id>build</id>
+                        <goals>
+                            <goal>exec</goal>
+                        </goals>
+                        <phase>compile</phase>
+                        <configuration>
+                            <executable>src/main/go/build.sh</executable>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>test</id>
+                        <goals>
+                            <goal>exec</goal>
+                        </goals>
+                        <phase>test</phase>
+                        <configuration>
+                            <skip>${skipTests}</skip>
+                            <workingDirectory>${project.basedir}/src/main/go</workingDirectory>
+                            <executable>go</executable>
+                            <arguments>
+                                <argument>test</argument>
+                                <argument>-v</argument>
+                                <argument>-race</argument>
+                                <argument>-parallel=10</argument>
+                                <argument>-timeout=10s</argument>
+                                <argument>./...</argument>
+                            </arguments>
+                            <environmentVariables>
+                                <JAVA_HOME />
+                            </environmentVariables>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <artifactId>maven-assembly-plugin</artifactId>
                 <executions>
@@ -35,15 +75,15 @@
                     </execution>
 
                     <execution>
-                        <id>properties-tgz</id>
+                        <id>static-tgz</id>
                         <goals>
                             <goal>single</goal>
                         </goals>
                         <phase>package</phase>
                         <configuration>
                             <attach>true</attach>
                             <descriptors>
-                                <descriptor>src/main/assemblies/properties.xml</descriptor>
+                                <descriptor>src/main/assemblies/static.xml</descriptor>
                             </descriptors>
                         </configuration>
                     </execution>

launcher/src/main/assemblies/bin.xml

@@ -32,5 +32,9 @@
             <directory>src/main/resources/procname</directory>
             <outputDirectory>/bin/procname</outputDirectory>
         </fileSet>
+        <fileSet>
+            <directory>src/main/resources/binaries</directory>
+            <outputDirectory>/bin/</outputDirectory>
+        </fileSet>
     </fileSets>
 </assembly>

launcher/src/main/assemblies/properties.xml → launcher/src/main/assemblies/static.xml

@@ -11,5 +11,9 @@
             <source>src/main/resources/launcher.properties</source>
             <outputDirectory>/bin</outputDirectory>
         </file>
+        <file>
+            <source>src/main/resources/launcher</source>
+            <outputDirectory>/bin</outputDirectory>
+        </file>
     </files>
 </assembly>