Move the code to run check-flake8 into the Makefile, like we have for
check-package, so that it is easy to run locally (and not wait for
someone to report a failure from their Gitlab pipelines).
Compared to the existing check from gitlab-ci.yml, the Makefile check
differs in this respect:
- don't explicitly find *.py files: they are supposed to also be found
as a result of running 'file' on them;
- use git ls-tree instead of find: this is supopsedly faster as it
uses the index rather than readdir();
- don't output the count of warnings or errors: the output is a single
integer, which is confusing when there are errors, and even more so
when there are no, when it is simply '0';
- don't sort: the output is already stable and independent from the
locale;
- don't report the number of processed files: this information is
rather useless, and getting a hold of it would be more challenging
in this new code.
Note: ideally, we would want to use --null, --zero, or similar options,
with utilities that generates or parses a files listing. While git
ls-tree and xargs do support it, it becomes a little bit tricky to use
the --print0 option of file, and then grep in that output (it is not
undoable, but would requires replacing grep+cut with some sed trickery).
Since we do not expect our scripts names to contain funky chars (like
\n or a colon), we just hand-wave away that issue (and the old code was
doing the same assumption too).
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
841ee767be