First development of the deploy action (#6)

Deploy js code to an instance of screeps.
Some debugging tools are implemented.

Reviewed-on: #6
Co-authored-by: Philipp Horstenkamp <philipp@horstenkamp.de>
Co-committed-by: Philipp Horstenkamp <philipp@horstenkamp.de>

node_modules/prebuild-install/bin.js

@@ -0,0 +1,76 @@
+#!/usr/bin/env node
+
+var path = require('path')
+var fs = require('fs')
+var whichPmRuns = require('which-pm-runs')
+
+var pkg = require(path.resolve('package.json'))
+var rc = require('./rc')(pkg)
+var log = require('./log')(rc, process.env)
+var download = require('./download')
+var asset = require('./asset')
+var util = require('./util')
+
+var prebuildClientVersion = require('./package.json').version
+if (rc.version) {
+  console.log(prebuildClientVersion)
+  process.exit(0)
+}
+
+if (rc.path) process.chdir(rc.path)
+
+if (!fs.existsSync('package.json')) {
+  log.error('setup', 'No package.json found. Aborting...')
+  process.exit(1)
+}
+
+if (rc.help) {
+  console.error(fs.readFileSync(path.join(__dirname, 'help.txt'), 'utf-8'))
+  process.exit(0)
+}
+
+log.info('begin', 'Prebuild-install version', prebuildClientVersion)
+
+var opts = Object.assign({}, rc, {pkg: pkg, log: log})
+
+var pm = whichPmRuns()
+var isNpm = !pm || pm.name === 'npm'
+
+if (!isNpm && /node_modules/.test(process.cwd())) {
+  // From yarn repository
+} else if (opts.force) {
+  log.warn('install', 'prebuilt binaries enforced with --force!')
+  log.warn('install', 'prebuilt binaries may be out of date!')
+} else if (!(typeof pkg._from === 'string')) {
+  log.info('install', 'installing standalone, skipping download.')
+  process.exit(1)
+} else if (pkg._from.length > 4 && pkg._from.substr(0, 4) === 'git+') {
+  log.info('install', 'installing from git repository, skipping download.')
+  process.exit(1)
+} else if (opts.compile === true || opts.prebuild === false) {
+  log.info('install', '--build-from-source specified, not attempting download.')
+  process.exit(1)
+}
+
+var startDownload = function (downloadUrl) {
+  download(downloadUrl, opts, function (err) {
+    if (err) {
+      log.warn('install', err.message)
+      return process.exit(1)
+    }
+    log.info('install', 'Successfully installed prebuilt binary!')
+  })
+}
+
+if (opts.token) {
+  asset(opts, function (err, assetId) {
+    if (err) {
+      log.warn('install', err.message)
+      return process.exit(1)
+    }
+
+    startDownload(util.getAssetUrl(opts, assetId))
+  })
+} else {
+  startDownload(util.getDownloadUrl(opts))
+}