Use true-case-path to fix re-entrancy issue on Windows (#2149)

* Use true-case-path

* Fix failing tests

* Delete package-lock.json

* .gitignore package-lock.json

.gitignore

@@ -11,3 +11,4 @@ test/lcov.info
 test/fixtures/watching-css-out-01
 test/fixtures/watching-css-out-02
 coverage
+package-lock.json
\ No newline at end of file

lib/extensions.js

@@ -7,7 +7,8 @@ var eol = require('os').EOL,
   pkg = require('../package.json'),
   mkdir = require('mkdirp'),
   path = require('path'),
-  defaultBinaryPath = path.join(__dirname, '..', 'vendor');
+  defaultBinaryPath = path.join(__dirname, '..', 'vendor'),
+  trueCasePathSync = require('true-case-path');
 
 /**
  * Get the human readable name of the Platform that is running
@@ -272,7 +273,7 @@ function getBinaryPath() {
     binaryPath = path.join(defaultBinaryPath, getBinaryName().replace(/_(?=binding\.node)/, '/'));
   }
 
-  return binaryPath;
+  return trueCasePathSync(binaryPath) || binaryPath;
 }
 
 /**

package.json

@@ -70,7 +70,8 @@
     "npmlog": "^4.0.0",
     "request": "^2.79.0",
     "sass-graph": "^2.2.4",
-    "stdout-stream": "^1.4.0"
+    "stdout-stream": "^1.4.0",
+    "true-case-path": "^1.0.2"
   },
   "devDependencies": {
     "coveralls": "^2.11.8",