Files
wasm-simulator/check-linuxcnc-inputs-cached.sh
2026-06-02 06:47:10 +08:00

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#!/usr/bin/env bash
set -euo pipefail
cd "$(dirname "$0")"
cache_dir=${CNC_SIM_PREFLIGHT_CACHE_DIR:-}
check_args=("$@")
if [[ "${1:-}" == "--cache-dir" ]]; then
if [[ "$#" -lt 2 ]]; then
echo "missing --cache-dir value" >&2
exit 1
fi
cache_dir=$2
shift 2
check_args=("$@")
fi
manifest=${1:-}
require_complete=${2:-}
linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
if [[ -z "$cache_dir" ]]; then
LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs.sh "${check_args[@]}"
exit 0
fi
if [[ "$cache_dir" =~ [[:space:]] ]]; then
echo "CNC_SIM_PREFLIGHT_CACHE_DIR must not contain whitespace: $cache_dir" >&2
exit 1
fi
mkdir -p "$cache_dir"
cache_dir=$(cd "$cache_dir" && pwd)
if [[ "$cache_dir" == "/" ]]; then
echo "CNC_SIM_PREFLIGHT_CACHE_DIR must not be the filesystem root" >&2
exit 1
fi
exec 8>"$cache_dir/check-linuxcnc-inputs.lock"
flock 8
if [[ ! -d "$linuxcnc_root" ]]; then
LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs.sh "${check_args[@]}"
exit 0
fi
linuxcnc_root=$(cd "$linuxcnc_root" && pwd)
manifest_key=ROOT_ONLY
manifest_path=
if [[ -n "$manifest" && "$manifest" != "--root-only" ]]; then
if [[ ! -f "$manifest" ]]; then
LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs.sh "${check_args[@]}"
exit 0
fi
manifest_path=$(cd "$(dirname "$manifest")" && pwd)/$(basename "$manifest")
manifest_key=$(printf '%s' "$manifest_path" | sha256sum | awk '{ print $1 }')
fi
safe_require=${require_complete:-none}
safe_require=${safe_require//[^A-Za-z0-9_.-]/_}
args_key=$(
{
printf 'ARGS='
printf ' %q' "${check_args[@]}"
printf '\n'
} | sha256sum | awk '{ print $1 }'
)
cache_file="$cache_dir/check-linuxcnc-inputs.${manifest_key}.${safe_require}.${args_key}.signature"
next_signature=$(mktemp "$cache_file.next.XXXXXX")
write_source_stat_signature() {
local source_path
[[ -z "$manifest_path" ]] && return 0
while IFS=: read -r group path note extra; do
case "$group" in
""|\#*)
continue
;;
esac
[[ -z "${path:-}" ]] && continue
source_path="$linuxcnc_root/$path"
if [[ ! -f "$source_path" ]]; then
return 1
fi
stat -c 'SOURCE=%n:%s:%y' "$source_path"
done < "$manifest_path"
}
write_complete_mode_signature() {
case "$require_complete" in
--require-rs274-complete)
find "$linuxcnc_root/src/emc/rs274ngc" -maxdepth 1 -type f \
-printf 'RS274=%P:%s:%T@\n' | sort
;;
--require-kinematics-complete)
for source_dir in \
"$linuxcnc_root/src/emc/kinematics" \
"$linuxcnc_root/src/libnml/posemath" \
"$linuxcnc_root/configs/sim"; do
[[ -d "$source_dir" ]] || return 1
find "$source_dir" -type f -printf "KIN=$source_dir/%P:%s:%T@\n" | sort
done
;;
esac
}
if ! {
printf 'CACHED_SCRIPT='
sha256sum check-linuxcnc-inputs-cached.sh
printf 'CHECK_SCRIPT='
sha256sum check-linuxcnc-inputs.sh
printf 'LINUXCNC_ROOT=%s\n' "$linuxcnc_root"
printf 'ARGS='
printf ' %q' "${check_args[@]}"
printf '\n'
if [[ -n "$manifest_path" ]]; then
printf 'MANIFEST_PATH=%s\n' "$manifest_path"
printf 'MANIFEST='
sha256sum "$manifest_path"
write_source_stat_signature
fi
write_complete_mode_signature
} > "$next_signature"; then
rm -f "$next_signature"
LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs.sh "${check_args[@]}"
exit 0
fi
if [[ -f "$cache_file" ]] && cmp -s "$cache_file" "$next_signature"; then
rm -f "$next_signature"
exit 0
fi
LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs.sh "${check_args[@]}"
mv "$next_signature" "$cache_file"