node-plantuml/scripts/get-vizjs.js

A Node.js module and CLI for running PlantUML

#!/usr/bin/env node
'use strict'

var fs = require('fs')
var path = require('path')
var download = require('./download')

var JAR_DIR_PATH = path.join(__dirname, '../vendor')
var VIZJS_JAR = path.join(JAR_DIR_PATH, 'vizjs.jar')
var J2V8_WIN_JAR = path.join(JAR_DIR_PATH, 'j2v8_win32_x86_64-3.1.6.jar')
var J2V8_LINUX_JAR = path.join(JAR_DIR_PATH, 'j2v8_linux_x86_64-3.1.6.jar')
var J2V8_MAC_JAR = path.join(JAR_DIR_PATH, 'j2v8_macosx_x86_64-3.1.6.jar')

var VIZJS_URL = 'http://beta.plantuml.net/vizjs.jar'
var J2V8_WIN_URL = 'http://beta.plantuml.net/j2v8_win32_x86_64-3.1.6.jar'
var J2V8_LINUX_URL = 'http://beta.plantuml.net/j2v8_linux_x86_64-3.1.6.jar'
var J2V8_MAC_URL = 'http://beta.plantuml.net/j2v8_macosx_x86_64-3.1.6.jar'

var plantuml = require('../lib/node-plantuml')

if (!fs.existsSync(JAR_DIR_PATH)) {
  fs.mkdirSync(JAR_DIR_PATH)
}

plantuml.testdot(function (isOk) {
  if (isOk) {
    console.info('graphviz was found on the system. Skipping download of vizjs.')
  } else {
    console.info('graphviz was not found on the system. Downloading vizjs instead. See http://plantuml.com/vizjs. This may take a few minutes.')

    // download additional libraries for working without dot installed.
    download(VIZJS_URL, VIZJS_JAR, false, function (err) {
      if (!err) {
        // also install the V8 engine just in case the currently installed Java does not have Nashorn
        switch (process.platform) {
          case 'win32':
            download(J2V8_WIN_URL, J2V8_WIN_JAR, false)
            break
          case 'linux':
            download(J2V8_LINUX_URL, J2V8_LINUX_JAR, false)
            break
          case 'darwin':
            download(J2V8_MAC_URL, J2V8_MAC_JAR, false)
            break
          default:
            console.error('Unsupported operating system for V8 jars.')
        }
      }
    })
  }
})