Add ability to start the python runtime

src/main/java/org/myrobotlab/ext/python/PythonUtils.java

@@ -95,14 +95,22 @@ public static int installPipPackages(String python, List<String> packages) {
         }
 
     }
-
     public static int runPythonScript(String python, File workingDirectory, String script, String... args) {
+        try {
+            return runPythonScriptAsync(python, workingDirectory, script, args).waitFor();
+        } catch (InterruptedException e) {
+                throw new SubprocessException("Unable to run script " + script + " with Python command " + python, e);
+            }
+    }
+
+
+    public static Process runPythonScriptAsync(String python, File workingDirectory, String script, String... args) {
         ProcessBuilder builder = new ProcessBuilder(python, script);
         List<String> currCommand = builder.command();
         currCommand.addAll(List.of(args));
         try {
-            return builder.inheritIO().directory(workingDirectory).start().waitFor();
-        } catch (InterruptedException | IOException e) {
+            return builder.inheritIO().directory(workingDirectory).start();
+        } catch (IOException e) {
             throw new SubprocessException("Unable to run script " + script + " with Python command " + python, e);
         }
 

src/main/java/org/myrobotlab/service/Runtime.java

@@ -321,7 +321,9 @@ public class Runtime extends Service<RuntimeConfig> implements MessageListener,
    */
   protected Set<String> startingServices = new HashSet<>();
 
-  private static final String PYTHON_VENV_PATH ="python_services/venv";
+  private static final String PYTHON_SERVICES_PATH = "python_services";
+
+  private static final String PYTHON_VENV_PATH = PYTHON_SERVICES_PATH + fs + "venv";
 
   private String pythonCommand;
 
@@ -638,6 +640,15 @@ public void setAutoStart(boolean autoStart) throws IOException {
     invoke("getStartYml");
   }
 
+  public void startPythonRuntime() {
+    PythonUtils.runPythonScriptAsync(
+            pythonCommand,
+            new File("."),
+            PYTHON_SERVICES_PATH + fs + "mrl" + fs + "bootstrap.py",
+            Platform.getLocalInstance().getId() + "-python"
+    );
+  }
+
   /**
    * Framework owned method - core of creating a new service. This method will
    * create a service with the given name and of the given type. If the type

src/main/python/python_services/mrl/bootstrap.py

@@ -0,0 +1,11 @@
+import logging
+import sys
+
+from mrlpy import mcommand
+from mrlpy.framework import runtime
+from mrlpy.framework.runtime import Runtime
+runtime.runtime_id = sys.argv[1]
+
+Runtime.init_runtime()
+logging.basicConfig(level=logging.INFO, force=True)
+mcommand.connect(id=sys.argv[1], daemon=False)