From 8c55cdd3d579c674b044c918b53e8382547d84ab Mon Sep 17 00:00:00 2001
From: Joshua Seigler <github@joshua.seigler.net>
Date: Tue, 6 Jun 2017 02:48:46 -0400
Subject: [PATCH] js linting script for precommit hook

---
 _tests/git hooks/precommit | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 _tests/git hooks/precommit

diff --git a/_tests/git hooks/precommit b/_tests/git hooks/precommit
new file mode 100755
index 0000000..92009a9
--- /dev/null
+++ b/_tests/git hooks/precommit	
@@ -0,0 +1,17 @@
+#!/bin/bash
+jsfiles=$(git diff --cached --name-only --diff-filter=M | grep '\.js\?$')
+jsfailed=0
+
+if [[ $jsfiles != "" ]] ; then
+  for file in ${jsfiles}; do
+    git show :$file | eslint --stdin --stdin-filename "$file"
+    if [[ $? != 0 ]] ; then
+      jsfailed=1
+    fi
+  done;
+fi
+
+if [[ $jsfailed != 0 ]] ; then
+  echo "🚫🚫🚫ESLint must pass before committing .js files"
+  exit 1
+fi