feat(slam): add cartographer_ros

cartographer_ros/scripts/check_access_token.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Usage: ./check_access_token.sh ACCESS_TOKEN
+# Returns non-zero exit code if ACCESS_TOKEN is invalid.
+
+if [ "$#" -ne 1 ]; then
+  echo "Please provide an access token to $0" 1>&2
+  exit 1
+fi
+token=$1
+
+set -e
+function on_error {
+  echo "Failed to validate GitHub access token!" 1>&2
+  exit 1
+}
+trap on_error ERR
+
+test_response=$(curl -s https://api.github.com/?access_token=${token})
+
+echo $test_response | grep -ivq "bad credentials"
+echo $"GitHub access token is valid."