Adding pre-commit

Introduced changes:
- pre-commit config and rules.
- Add pre-commit to pep8 gate, Flake8 is covered in the pre-commit hooks.
- Applying fixes for pre-commit compliance in all code.

Also commit hash will be used instead of version tags in pre-commit to
prevend arbitrary code from running in developer's machines.

pre-commit will be used to:
- trailing whitespace;
- Replaces or checks mixed line ending (mixed-line-ending);
- Forbid files which have a UTF-8 byte-order marker
  (check-byte-order-marker);
- Checks that non-binary executables have a proper
  shebang (check-executables-have-shebangs);
- Check for files that contain merge conflict strings
  (check-merge-conflict);
- Check for debugger imports and py37+ breakpoint()
  calls in python source (debug-statements);
- Attempts to load all yaml files to verify syntax (check-yaml);
- Run flake8 checks (flake8) (local)

For further details about tests please refer to:
https://github.com/pre-commit/pre-commit-hooks

Change-Id: I3640bb690c552a428ae0e8250adffbc3a51a310e
Signed-off-by: Moisés Guimarães de Medeiros <moguimar@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/tox.ini b/tox.ini
index 5724bd7..185c212 100644
--- a/tox.ini
+++ b/tox.ini
@@ -30,8 +30,7 @@ deps =
 commands = {toxinidir}/tools/update_states.sh
 
 [testenv:pep8]
-commands =
-  flake8 {posargs}
+commands = pre-commit run -a
 
 [testenv:pylint]
 deps =