feat: add ultra light node launcher

.gitignore

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+node_modules
+data-dir

index.js

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+const fetch = require('node-fetch')
+const { existsSync, readFileSync, writeFileSync, mkdirSync } = require('fs')
+const { exit } = require('process')
+const { resolve } = require('path')
+const { spawn } = require('child_process')
+
+async function main() {
+    if (!existsSync('bee')) {
+        console.error(`Please compile bee and place it as follows: ${resolve('bee')}`)
+        exit(1)
+    }
+    if (!existsSync('data-dir')) {
+        mkdirSync('data-dir')
+    }
+    if (!existsSync('config.yaml')) {
+        writeFileSync('config.yaml', createStubConfiguration())
+    }
+    if (!existsSync('data-dir/keys/swarm.key')) {
+        await launchBee().catch(() => {})
+    }
+    const config = readFileSync('config.yaml', 'utf-8')
+    if (!config.includes('block-hash')) {
+        const { address } = JSON.parse(readFileSync('data-dir/keys/swarm.key'))
+        console.log('Sending transaction to address', address)
+        const { transaction, blockHash } = await sendTransaction(address)
+        writeFileSync('config.yaml', createConfiguration(transaction, blockHash))
+    }
+    launchBee()
+}
+
+async function sendTransaction(address) {
+    const response = await fetch(`http://getxdai.co/${address}/0`, { method: 'POST' })
+    const json = await response.json()
+    return { transaction: json.transactionHash, blockHash: json.nextBlockHashBee }
+}
+
+function createStubConfiguration() {
+    return `api-addr: 127.0.0.1:1633
+debug-api-addr: 127.0.0.1:1635
+debug-api-enable: true
+password: Test
+swap-enable: false
+swap-initial-deposit: 0
+mainnet: true
+full-node: false
+chain-enable: false
+data-dir: ${resolve('data-dir')}`
+}
+
+function createConfiguration(transaction, blockHash) {
+    return `${createStubConfiguration()}
+transaction: ${transaction}
+block-hash: ${blockHash}`
+}
+
+async function launchBee() {
+    const configPath = resolve('config.yaml')
+    return runProcess(resolve('bee'), ['start', `--config=${configPath}`], onStdout, onStderr)
+}
+
+function onStdout(data) {
+    process.stdout.write(data)
+}
+
+function onStderr(data) {
+    process.stderr.write(data)
+}
+
+async function runProcess(command, args, onStdout, onStderr) {
+    return new Promise((resolve, reject) => {
+        const subprocess = spawn(command, args)
+        subprocess.stdout.on('data', onStdout)
+        subprocess.stderr.on('data', onStderr)
+        subprocess.on('close', code => {
+            if (code === 0) {
+                resolve(code)
+            } else {
+                reject(code)
+            }
+        })
+    })
+}
+
+main()

package.json

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+{
+    "name": "bee-desktop",
+    "version": "1.0.0",
+    "description": "",
+    "main": "index.js",
+    "scripts": {
+        "start": "node index.js"
+    },
+    "keywords": [],
+    "author": "",
+    "license": "ISC",
+    "dependencies": {
+        "node-fetch": "^2.6.7"
+    }
+}