Add script to warn about pushing to master

scripts/hooks/pre-push.protect-master.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+#
+# The following snippet can be used to WARN about pushing to master
+#
+# Aborting the push is possible
+#
+
+protected_branch='master'
+current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')
+
+if [ $protected_branch = $current_branch ]; then
+    read -p "You're about to push master, is that what you intended? [y|n] " -n 1 -r < /dev/tty
+    echo
+    if echo $REPLY | grep -E '^[Yy]$' > /dev/null; then
+        exit 0 # push will execute
+    fi
+    exit 1 # push will not execute
+else
+    exit 0 # push will execute
+fi
+