shellcheck.sh

#!/bin/bash
# Copyright 2020 Red Hat, Inc
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

if ! command -v shellcheck > /dev/null 2>&1; then
    scversion="stable" # or "v0.4.7", or "latest"
    wget -qO- "https://github.com/koalaman/shellcheck/releases/download/${scversion?}/shellcheck-${scversion?}.linux.x86_64.tar.xz" | tar -xJv
    shellcheck-stable/shellcheck --version
    shellcheck-stable/shellcheck --exclude=SC1090,SC2086,SC2034,SC1091 -- *.sh
else
    shellcheck --exclude=SC1090,SC2086,SC2034,SC1091 -- *.sh
fi