Allow a file on the filesystem to be used as the source

README.md

@@ -47,6 +47,26 @@ Another option is to use PATH variable `CHROMEDRIVER_CDNURL`.
 CHROMEDRIVER_CDNURL=http://npm.taobao.org/mirrors/chromedriver npm install chromedriver
 ```
 
+### Custom binaries file
+
+To get the chromedriver from the filesystem instead of a web request use the npm config property `chromedriver_filepath`.
+
+```shell
+npm install chromedriver --chromedriver_filepath=/path/to/chromedriver_mac64.zip
+```
+
+Or add property into your [`.npmrc`](https://docs.npmjs.com/files/npmrc) file.
+
+```
+chromedriver_filepath=/path/to/chromedriver_mac64.zip
+```
+
+Another option is to use the PATH variable `CHROMEDRIVER_FILEPATH`
+
+```shell
+CHROMEDRIVER_FILEPATH=/path/to/chromedriver_mac64.zip
+```
+
 Running
 -------
 

install.js

@@ -14,6 +14,8 @@ var util = require('util');
 
 var libPath = path.join(__dirname, 'lib', 'chromedriver');
 var cdnUrl = process.env.npm_config_chromedriver_cdnurl || process.env.CHROMEDRIVER_CDNURL || 'https://chromedriver.storage.googleapis.com';
+var configuredfilePath = process.env.npm_config_chromedriver_filepath || process.env.CHROMEDRIVER_FILEPATH;
+
 // adapt http://chromedriver.storage.googleapis.com/
 cdnUrl = cdnUrl.replace(/\/+$/, '');
 var downloadUrl = cdnUrl + '/%s/chromedriver_%s.zip';
@@ -55,12 +57,17 @@ promise = promise.then(function () {
 
 // Start the install.
 promise = promise.then(function () {
-  downloadUrl = util.format(downloadUrl, chromedriver_version, platform);
-  var fileName = downloadUrl.split('/').pop();
-  downloadedFile = path.join(tmpPath, fileName);
-  console.log('Downloading', downloadUrl);
-  console.log('Saving to', downloadedFile);
-  return requestBinary(getRequestOptions(downloadUrl), downloadedFile);
+  if (configuredfilePath) {
+    console.log('Using file: ', configuredfilePath);
+    downloadedFile = configuredfilePath;
+  } else {
+    downloadUrl = util.format(downloadUrl, chromedriver_version, platform);
+    var fileName = downloadUrl.split('/').pop();
+    downloadedFile = path.join(tmpPath, fileName);
+    console.log('Downloading', downloadUrl);
+    console.log('Saving to', downloadedFile);
+    return requestBinary(getRequestOptions(downloadUrl), downloadedFile);
+  }
 });
 
 promise.then(function () {
@@ -274,4 +281,4 @@ function fixFilePermissions() {
       fs.chmodSync(helper.path, '755');
     }
   }
-}
+}