Before:

• pre-commit hook was not running because it wasn't executable

Now:

• pre-commit hook runs

Explanation of the new permissions:

The six-digit code 100755 is broken down as follows:

• 100 (leading digits): This is a file type identifier used internally by Git (and related POSIX systems). It signifies a regular file as opposed to other types like symbolic links (120).

= 755 (last three digits): This is the standard Unix permission mode (equivalent to running chmod 755 filename in a terminal). Each digit represents the permissions for a different class of user, calculated by adding values for read (4), write (2), and execute (1) permissions:
7 (owner): Read (4) + Write (2) + Execute (1) = Full permissions.
5 (group): Read (4) + Execute (1) = Read and execute only (cannot alter).
5 (others/public): Read (4) + Execute (1) = Read and execute only (cannot alter).