Description

Current practice in RIOT is to place a (somewhat bulky) standard header in files describing the license. These are parsed by a shell script (https://github.com/RIOT-OS/RIOT/blob/master/dist/tools/licenses/check.sh)

Long license headers bloat source files and complicate parsing (think of all that that poor script has to do, try running it on few hundred files and you will see).

As it usually happens, other people already ran into the same issue and developed SPDX license identifiers: https://spdx.org/ids-how .

Proposal

What if we start using SPDX for new files?