Flake8 for python code linting. Script takes into account diff with develop branch.

code_lint_diff.sh

PROJECT_DIR=$1
#now we need to act from a project source directory to have vsc in place
pushd ${PROJECT_DIR}

#we never push directly to develop and we want to run linter only on feature branches
#skip when on master branch as well
curr_branch_name=$(git rev-parse --abbrev-ref HEAD)
if [ "${curr_branch_name}" = "origin/develop" ] || [ "${curr_branch_name}" = "origin/master" ]; then
     echo "Skipping linter for ${curr_branch_name}."
     exit 0
fi

# Creating temporary directory and new virtual environment not to mess things
TMP_DIR=$(mktemp -d)
virtualenv -p python3 ${TMP_DIR} >> /dev/null
source ${TMP_DIR}/bin/activate >> /dev/null

# installing flake8-awesome which includes flake8 and a bunch of extension plugins
pip install flake8-awesome >> /dev/null

#take diff between current branch and develop branch and pass them as an input to flake8 --diff
git diff origin/develop -- "*.py" | flake8 --diff --ignore E402,E731,E501 --max-line-length=99

deactivate
rm -rf ${TMP_DIR}
echo "Linting OK"
popd