Add a script for launching SciJava REPL via Python

Author: ctrueden

repl.sh

@@ -0,0 +1,45 @@
+#!/bin/sh
+set -e
+cd "$(dirname "$0")"
+python -c '
+import os.path
+import xml.etree.ElementTree as ET
+import scyjava
+import subprocess
+from pathlib import Path
+
+def exec(cmd):
+    try:
+        args = cmd.split(" ")
+        subprocess.check_output(cmd.split(" "))
+    except subprocess.CalledProcessError as e:
+        print("== OPERATION FAILED ==")
+        print(e.stdout.decode())
+        print(e.stderr.decode())
+        raise e
+
+pom = ET.parse("pom.xml")
+artifactId = pom.find("{http://maven.apache.org/POM/4.0.0}artifactId").text
+version = pom.find("{http://maven.apache.org/POM/4.0.0}version").text
+jar = Path(f"target/{artifactId}-{version}.jar")
+if not jar.exists():
+    print("Building JAR file...")
+    exec("mvn -Denforcer.skip -Dmaven.test.skip clean package")
+deps_dir = Path("target/dependency")
+if not deps_dir.exists():
+    print("Copying dependencies...")
+    exec("mvn -DincludeScope=runtime dependency:copy-dependencies")
+
+scyjava.config.add_option("-Djava.awt.headless=true")
+scyjava.config.add_classpath(jar.absolute())
+deps = scyjava.config.find_jars(deps_dir.absolute())
+scyjava.config.add_classpath(*deps)
+Context = scyjava.jimport("org.scijava.Context")
+context = Context(False)
+print(f"Context created with {context.getServiceIndex().size()} services.")
+scyjava.enable_python_scripting(context)
+ScriptREPL = scyjava.jimport("org.scijava.script.ScriptREPL")
+repl = ScriptREPL(context, "Python")
+repl.loop()
+context.dispose()
+'