jshell-on: A simple script for running jshell with dependencies. (just add the following files to your $PATH directory.)

jshell-on

#!/usr/bin/env bash

JSHELL=$(which jshell)

if [[ -z ${JSHELL} ]]; then
  echo "jshell not installed; exit."
  exit 1
fi

GRADLE=$(which gradle)

if [[ -z ${GRADLE} ]]; then
  echo "gradle not installed; exit."
  exit 1
fi

JSHEL_GRADLE_SETTINGS=$(dirname $(readlink -f $0))/jshell.gradle
UTILS_SCRIPT=$(dirname $(readlink -f $0))/jshell.jsh

CLASSPATH=$(gradle -b ${JSHEL_GRADLE_SETTINGS} -q printClasspath) ${JSHELL} --start PRINTING --start ${UTILS_SCRIPT}

jshell.gradle

plugins {
  id 'java'
}

repositories {
  jcenter()
  mavenCentral()
}

dependencies {
    implementation 'com.google.guava:guava:27.0.1-jre'
}

task printClasspath {
  doLast {
    println sourceSets.main.runtimeClasspath.asPath
  }
}

jshell.jsh

// see: https://github.com/openjdk/jdk/blob/3955b037da8a0981d8efc67f28caaacdef7dfb31/src/jdk.jshell/share/classes/jdk/internal/jshell/tool/JShellTool.java
// see: https://github.com/openjdk/jdk/blob/3955b037da8a0981d8efc67f28caaacdef7dfb31/src/jdk.jshell/share/classes/jdk/jshell/tool/resources/PRINTING.jsh

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

Properties properties(String path) {
  Properties prop = new Properties();

  try (InputStream input = new FileInputStream(path)) {
    prop.load(input);
  } catch (IOException ex) {
    ex.printStackTrace();
  }
 
  return prop;
}