From 0b019f9160427098ab30f49d922cef74f26e48a6 Mon Sep 17 00:00:00 2001
From: Nick Wilde <nick@briarmoon.ca>
Date: Fri, 14 Sep 2018 18:42:26 -0700
Subject: [PATCH] Allow standard to be selected in composer.json

---
 .gitignore      |  1 +
 README.md       | 14 +++++++++++---
 src/Sniffer.php |  8 +++++++-
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index 57872d0..cac762f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /vendor/
+/.idea/
diff --git a/README.md b/README.md
index 70b3c02..0e5021e 100644
--- a/README.md
+++ b/README.md
@@ -38,9 +38,17 @@ It should just work when you `git commit`.
 
 ## Internals
 
-By default, of the 5 different WordPress coding standards (`WordPress-VIP`, `WordPress`, `WordPress-Extra`, `WordPress-Docs` and `WordPress-Core`), this one uses the `WordPress-Extra` one.
-
-If you need to change it, currently you need to edit the Sniff file. Contributions on how to make this dynamic are welcome (`.env` file, different sniffs for each and choosing the appropriate hooks).
+WPCS provides 5 different coding standards (`WordPress-VIP`, `WordPress`,
+`WordPress-Extra`, `WordPress-Docs` and `WordPress-Core`). By default this uses
+`WordPress-Extra`. If you want to use another one of the standards, you can
+specify it in your project's composer.json's `extra` key:
+ ```json
+  "extra": {
+    "php-composter-phpcs-wpcs": {
+      "standard": "WordPress-VIP"
+    }
+  }
+```
 
 ## Contributing
 
diff --git a/src/Sniffer.php b/src/Sniffer.php
index ab6e30f..9a0ab02 100644
--- a/src/Sniffer.php
+++ b/src/Sniffer.php
@@ -39,9 +39,15 @@ public function preCommit()
 
         echo 'Running PHP CodeSniffer in ' . $this->root . PHP_EOL;
         $sniffer = new PHP_CodeSniffer_CLI();
+        @$config = $this->getExtraKey('php-composter-phpcs-wpcs', [
+            'standard' => 'WordPress-Extra'
+        ]);
 
         ob_start();
-        $numErrors = $sniffer->process(array('standard' => 'WordPress-Extra', 'files' => $files));
+        $numErrors = $sniffer->process([
+            'standard' => $config['standard'],
+            'files' => $files
+        ]);
         $output    = ob_get_clean();
 
         echo $output . PHP_EOL;