Add remount checker

I should add instructions on how to call it too

remount_checker/example_mount_points.py

@@ -0,0 +1,4 @@
+mount_points = (
+    # ('/mnt/external', 'mount /mnt/external')
+    # ('/mnt/network_drive', 'cd /mnt; mount network_drive')
+)

remount_checker/mount_points.py

@@ -0,0 +1,5 @@
+mount_points = (
+    ('/mnt/btn', '/usr/bin/mount /mnt/btn'),
+    ('/mnt/ptp', '/usr/bin/mount /mnt/ptp'),
+    ('/mnt/music', '/usr/bin/mount /mnt/music')
+)

remount_checker/remount.py

@@ -0,0 +1,31 @@
+import sys
+import subprocess
+
+try:
+    from mount_points import mount_points
+except ImportError:
+    print('Couldn\'t find the mount points. Please copy the example_mount_points.py')
+    print('to mount_points.py and edit the file.')
+    sys.exit(1)
+
+def is_mounted(mount_point):
+    lines = None
+    with open('/proc/mounts', 'r') as f:
+        lines = f.readlines()
+    for line in lines:
+        if mount_point in line:
+            return True
+    return False
+
+if __name__ == '__main__':
+    for mount_point in mount_points:
+        if is_mounted(mount_point[0]):
+            print('{} is mounted'.format(mount_point[0]))
+        else:
+            print('{} is not mounted; remounting using {}'.format(mount_point[0], mount_point[1]))
+            subprocess.call(mount_point[1], shell=True)
+            if is_mounted(mount_point[0]):
+                print('{} if mounted again'.format(mount_point[0]))
+            else:
+                print('{} is not mounted - might need fixing'.format(mount_point[0]))
+