ci

#!/usr/bin/env bash
# Project CI entrypoint. Default: fix formatting locally.
# Use --action=check (dry-run, non-zero on diff) in a git hook / CI.
set -euo pipefail
cd "$(dirname "$0")"

check=lint action=fix
for a in "$@"; do case $a in
  --check=*)  check=${a#*=} ;;
  --action=*) action=${a#*=} ;;
  *) echo "usage: ./ci [--check=lint] [--action=fix|check]" >&2; exit 2 ;;
esac; done

srcs()   { git ls-files '*.c' '*.h' ':!:libs/**' ':!:version.h'; }
shells() { git ls-files ':!:libs/**' | while read -r f; do
             if head -1 -- "$f" | grep -q '^#!.*sh'; then printf '%s\n' "$f"; fi
           done; }

case $check.$action in
  lint.fix)   srcs   | xargs -r clang-format -i
              shells | xargs -r shellcheck ;;              # no autofix; reports only
  lint.check) srcs   | xargs -r clang-format --dry-run --Werror
              shells | xargs -r shellcheck ;;
  *) echo "unknown --check=$check --action=$action" >&2; exit 2 ;;
esac