@flowfuse/flowfuse/scripts/install-stack.js

An open source low-code development platform

#!/usr/bin/env node
const { exec } = require('child_process')
const { log, error } = require('console')
const fs = require('fs')
const path = require('path')

const flowforgeHome = process.env.FLOWFORGE_HOME

let vers = process.env.npm_config_vers
if (!vers) {
    vers = process.argv[process.argv.length - 1]
    if (!vers) {
        throw new Error('command line arg vars is missing')
    }
}

if (!/^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/.test(vers) && vers !== 'latest') {
    throw new Error('version not valid semantic version')
}

let p = path.join('var', 'stacks', vers)
if (flowforgeHome) {
    p = path.join(flowforgeHome, p)
}
fs.mkdirSync(p, { recursive: true })

log(`installing stack node-red@${vers}`)
const npmCmd = `npm install --prefix "${p}" node-red@${vers}`

exec(npmCmd, (err, stdout, stderr) => {
    if (err) {
        error(err)
    } else {
        if (vers === 'latest') {
            const packagePath = path.join(p, 'node_modules/node-red/package.json')
            const packageJSON = JSON.parse(fs.readFileSync(packagePath))
            log(`node-red@latest is currently node-red@${packageJSON.version}`)
            log(`installed stack node-red@${packageJSON.version}`)
            const newPath = path.join(path.dirname(p), packageJSON.version)
            if (!fs.existsSync(newPath)) {
                fs.renameSync(p, newPath)
            } else {
                log(`node-red@${packageJSON.version} already installed`)
                fs.rmSync(p, { recursive: true, force: true })
            }
        } else {
            log(`installed stack node-red@${vers}`)
        }
    }
})