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2026-09-03 21:40:09 -05:00

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#!/usr/bin/bash
#
# tests/shellcheck.sh — enforce shellcheck (via Docker) on all repo shell scripts
#
# Usage:
# bash tests/shellcheck.sh # lint every .sh in the repo
# bash tests/shellcheck.sh path/a.sh path/b.sh # lint specific files
#
# Uses the koalaman/shellcheck:stable image (no native binary required).
# Exits non-zero if ANY script emits a diagnostic. Skips non-bash scripts
# (e.g. PHP files with a .sh extension) and the vendored/ trees.
#
set -uo pipefail
IMAGE="koalaman/shellcheck:stable"
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
# --- Gather target files -----------------------------------------------------
mapfile -t FILES < <(
if [ "$#" -gt 0 ]; then
# Explicit args: resolve to repo-root-relative paths, keep only .sh
for f in "$@"; do
f_abs="$(cd "$(dirname "$f")" && pwd)/$(basename "$f")"
case "$f_abs" in
"$ROOT"/vendor/*) ;; # skip vendored
"$ROOT"/archive/provisioning/Agents/librenms/*) ;; # upstream librenms-agent scripts
"$ROOT"/oam/librenms-agent/agent/*) ;; # upstream librenms-agent scripts (verbatim port [#474])
"$ROOT"/archive/KNELServerBuild/*) ;; # archived legacy code, not maintained [#474]
*) case "$f_abs" in *.sh) echo "$f_abs";; esac ;;
esac
done
else
# Default: every .sh under the repo, minus vendor/
while IFS= read -r f_abs; do
case "$f_abs" in
"$ROOT"/vendor/*) ;; # skip vendored
"$ROOT"/archive/provisioning/Agents/librenms/*) ;; # upstream librenms-agent scripts
"$ROOT"/oam/librenms-agent/agent/*) ;; # upstream librenms-agent scripts (verbatim port [#474])
"$ROOT"/archive/KNELServerBuild/*) ;; # archived legacy code, not maintained [#474]
*) echo "$f_abs" ;;
esac
done < <(find "$ROOT" -type f -name '*.sh' \
-not -path '*/.git/*' -not -path "$ROOT/vendor/*" \
-not -path "$ROOT/.crush/*")
fi
)
if [ "${#FILES[@]}" -eq 0 ]; then
echo "shellcheck.sh: no .sh files to check." >&2
exit 0
fi
# --- Filter out non-bash scripts (e.g. PHP with a .sh extension) --------------
BASH_FILES=()
for f in "${FILES[@]}"; do
shebang=$(head -c 64 "$f" 2>/dev/null | head -n1)
case "$shebang" in
\#!/usr/bin/php*|\#!/usr/bin/env\ php*) ;; # PHP, skip
\#!*) BASH_FILES+=("$f") ;; # any other shebang → check
*) BASH_FILES+=("$f") ;; # no shebang → check anyway
esac
done
if [ "${#BASH_FILES[@]}" -eq 0 ]; then
echo "shellcheck.sh: no bash scripts among targets." >&2
exit 0
fi
# --- Run shellcheck in Docker (mount repo root, pass root-relative paths) -----
# shellcheck disable=SC2012 # basename loop is intentional
REL=()
for f in "${BASH_FILES[@]}"; do REL+=("${f#"$ROOT"/}"); done
# Disable checks that are intentional conventions of this codebase (not bugs):
# SC1090/SC1091 — cannot follow dynamically-computed `source` paths (KNEL framework)
# SC2029 — ssh orchestration deliberately expands the command client-side
DISABLES=(
-e SC1090
-e SC1091
-e SC2029
)
echo "Checking ${#BASH_FILES[@]} script(s) with $IMAGE:"
printf ' %s\n' "${REL[@]}"
docker run --rm \
-v "$ROOT:/mnt:ro" \
-w /mnt \
"$IMAGE" -x "${DISABLES[@]}" "${REL[@]}"
rc=$?
if [ "$rc" -eq 0 ]; then
echo "shellcheck: PASS (${#BASH_FILES[@]} scripts clean)"
else
echo "shellcheck: FAIL (fix the findings above or add targeted disable directives)" >&2
fi
exit "$rc"