fix(shrinkpack): Repair support for Windows

shrinkpack.js → index.js

@@ -1,3 +1,7 @@
+#!/usr/bin/env node
+
+'use strict';
+
 var childProcess = require('child_process');
 var fs = require('fs');
 var is = require('is');
@@ -11,7 +15,7 @@ var traverse = require('./src/traverse');
 var terminal = require('./src/terminal');
 
 function getProjectPath() {
-  return process.env.PWD;
+  return process.env.PWD || process.cwd();
 }
 
 function getFilePath(file) {

package.json

@@ -7,7 +7,7 @@
   "license": "MIT",
   "homepage": "https://github.com/JamieMason/shrinkpack",
   "bin": {
-    "shrinkpack": "shrinkpack"
+    "shrinkpack": "index.js"
   },
   "repository": {
     "type": "git",

src/tarball.js

@@ -2,9 +2,13 @@ var os = require('os');
 var path = require('path');
 
 var isWindows = /^win[0-9]{2}$/.test(os.platform());
-var HOME = process.env[isWindows ? 'USERPROFILE' : 'HOME'];
+var HOME = process.env[isWindows ? 'APPDATA' : 'HOME'];
 var CACHE = isWindows ? 'npm-cache' : '.npm';
 
+function getProjectPath() {
+  return process.env.PWD || process.cwd();
+}
+
 module.exports = {
 
   getRegistryUrl: function(name, version) {
@@ -41,15 +45,15 @@ module.exports = {
     if (name && version) {
       return path.resolve(
         path.join(
-          process.env.PWD,
+          getProjectPath(),
           'node_shrinkwrap',
           name + '-' + version + '.tgz'
         )
       );
     }
     return path.resolve(
       path.join(
-        process.env.PWD,
+        getProjectPath(),
         'node_shrinkwrap'
       )
     );