tar archiving

.gitignore

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+node_modules
+.DS_Store 

cmd.js

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+#! /usr/bin/env node
+
+"use strict";
+var fs      = require('fs')
+var zlib    = require('zlib')
+var tar     = require('tar')
+var fstream = require('fstream')
+var args    = process.argv.slice(2)
+
+function usage() {
+  console.log('usage:')
+  console.log('machine-share export <machine-name>')
+  console.log('machine-share import <machine-name>')
+}
+
+if (args.length === 0) {
+  usage()
+  process.exit()
+}
+
+if (args.length < 2) {
+  usage()
+  process.exit()
+}
+
+var validCmds = new Set(['export', 'import'])
+var cmd = args[0]
+
+if (!validCmds.has(cmd)) {
+  console.log(args[0] + ' not a command')
+}
+
+// TODO: 
+// should consider the $MACHINE_STORAGE_PATH env var
+function doExport() {
+  let machineName = args[1]
+  console.log('exporting ' + machineName)
+  var path = process.env.HOME + '/.docker/machine/machines/' + machineName
+  console.log('looking in: ' + path)
+  try {
+    var dir = fs.readdirSync(path)
+  }
+  catch(e) {
+    console.log('can\'t find that machine :(')
+    process.exit()
+  }
+  createArchive(path)
+}
+
+function createArchive(path) {
+  console.log('creating archive')
+  var dirDest = fs.createWriteStream('dir.tar')
+
+  var packer = tar.Pack({ noProprietary: true })
+    .on('error', function() { console.log('tar issues') })
+    .on('end', function() { console.log('archive complete') });
+
+  fstream.Reader({ path: path , type: "Directory" })
+    .on('error', function() { console.log('yoo') })
+    .pipe(packer)
+    .pipe(dirDest)
+
+}
+
+function doImport() {
+
+}
+
+
+switch(cmd) {
+  case 'export': doExport();
+  case 'import': doImport();
+}
+

package.json

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+{
+  "name": "machine-share",
+  "version": "0.0.1",
+  "description": "share docker machines with friendz",
+  "bin": {
+    "machine-share": "./cmd.js"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/bhurlow/machine-share.git"
+  },
+  "keywords": [
+    "docker-machine",
+    "docker",
+    "export",
+    "import"
+  ],
+  "author": "Brian Hurlow",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/bhurlow/machine-share/issues"
+  },
+  "homepage": "https://github.com/bhurlow/machine-share#readme",
+  "dependencies": {
+    "fstream": "^1.0.8",
+    "tar": "^2.2.1"
+  }
+}