language: shell env: global: - SHFMT_URL=https://github.com/mvdan/sh/releases/download/v0.4.0/shfmt_v0.4.0_linux_amd64 addons: apt: sources: - debian-sid # Grab shellcheck from the Debian repo (o_O) packages: - shellcheck script: - curl -sSL $SHFMT_URL -o ~/shfmt - chmod +x ~/shfmt - shellcheck -V - shellcheck -e SC2021,SC2126,SC2034 **/*.sh && echo "shellcheck OK" || exit 1 - ~/shfmt -l -w -i 2 . && echo "shfmt OK" || git diff --exit-code || (echo "Run shfmt to fix the formatting issues" && exit 1)