Re: Git files data formats documentation

> <TREE_ENTRY>
>         # The type of the object referenced MUST be appropriate for
>         # the mode. Regular files and symbolic links reference a BLOB
>         # and directories reference a TREE.
>         :       <OCTAL_MODE> <SP> <NAME> <NUL> <BINARY_OBJ_ID>
>         ;

> <OCTAL_MODE>
>         # Octal encoding, without prefix, of the file system object
>         # type and permission bits. The bit layout is according to the
>         # POSIX standard, with only regular files, directories, and
>         # symbolic links permitted. The actual permission bits are
>         # all zero except for regular files. The only permission bit
>         # of any consequence to Git is the owner executable bit. By
>         # default, the permission bits for files will be either 0644
>         # or 0755, depending on the owner executable bit.
>         ;