每轮只推进合理适量的上下文、禁止顺手扩功能 smoke：源码链接构建约束

test-linuxcnc-wasm-blockers.sh

@@ -4,6 +4,32 @@ set -euo pipefail
 cd "$(dirname "$0")"
 
 manifest=${1:-linuxcnc-rs274-wasm-source-files.txt}
+self_checks=${CNC_SIM_WASM_BLOCKERS_SELF_CHECKS:-0}
+if [[ "$self_checks" != "0" && "$self_checks" != "1" ]]; then
+    echo "CNC_SIM_WASM_BLOCKERS_SELF_CHECKS must be 0 or 1: $self_checks" >&2
+    exit 1
+fi
+linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
+cache_dir=${CNC_SIM_WASM_BLOCKERS_CACHE_DIR-${CNC_SIM_PREFLIGHT_CACHE_DIR:-build/wasm-blocker-cache}}
+if [[ -z "$cache_dir" ]]; then
+    echo "CNC_SIM_WASM_BLOCKERS_CACHE_DIR must not be empty" >&2
+    exit 1
+fi
+if [[ "$cache_dir" =~ [[:space:]] ]]; then
+    echo "CNC_SIM_WASM_BLOCKERS_CACHE_DIR must not contain whitespace: $cache_dir" >&2
+    exit 1
+fi
+mkdir -p "$cache_dir"
+cache_dir=$(cd "$cache_dir" && pwd)
+if [[ "$cache_dir" == "/" ]]; then
+    echo "CNC_SIM_WASM_BLOCKERS_CACHE_DIR must not be the filesystem root" >&2
+    exit 1
+fi
+LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs-cached.sh --cache-dir "$cache_dir/preflight" "$manifest"
+manifest=$(cd "$(dirname "$manifest")" && pwd)/$(basename "$manifest")
+linuxcnc_root=$(cd "$linuxcnc_root" && pwd)
+
+if [[ "$self_checks" == "1" ]]; then
 
 missing_manifest=${TMPDIR:-/tmp}/cnc_sim_missing_wasm_blocker_manifest.txt
 missing_manifest_log=$(mktemp "${TMPDIR:-/tmp}/cnc_sim_missing_wasm_blocker_manifest.XXXXXX.log")
@@ -49,8 +75,6 @@ if ! grep -F "missing LinuxCNC root: $missing_root" "$missing_root_log" >/dev/nu
     exit 1
 fi
 
-output=$(./analyze-linuxcnc-wasm-blockers.sh "$manifest")
-
 printf 'blocked:src/emc/tooldata/does_not_exist.cc:test missing blocked source\n' >"$missing_source_manifest"
 if ./analyze-linuxcnc-wasm-blockers.sh "$missing_source_manifest" >"$missing_source_log" 2>&1; then
     echo "wasm blocker analyzer accepted missing manifest source" >&2
@@ -91,6 +115,57 @@ if ! grep -F "missing blocked replacement mapping: src/emc/tooldata/tooldata_db.
     exit 1
 fi
 
+fi
+
+manifest_key=$(printf '%s' "$manifest" | sha256sum | awk '{ print $1 }')
+exec 8>"$cache_dir/wasm-blockers.lock"
+flock 8
+cache_signature="$cache_dir/wasm-blockers.${manifest_key}.signature"
+cache_output="$cache_dir/wasm-blockers.${manifest_key}.out"
+next_signature="$cache_signature.next"
+write_manifest_source_stats() {
+    local group path note source_path
+    while IFS=: read -r group path note; do
+        case "$group" in
+            ""|\#*)
+                continue
+                ;;
+        esac
+        [[ -z "${path:-}" ]] && continue
+        source_path="$linuxcnc_root/$path"
+        [[ -f "$source_path" ]] || return 1
+        stat -c 'SOURCE=%n:%s:%y' "$source_path"
+    done < "$manifest"
+}
+write_shim_source_hashes() {
+    local shim_source
+    while IFS= read -r shim_source; do
+        [[ -n "$shim_source" ]] || continue
+        [[ -f "$shim_source" ]] || return 1
+        sha256sum "$shim_source"
+    done < <(./list-linuxcnc-wasm-safe-shims.sh)
+}
+{
+    printf 'ANALYZER='
+    sha256sum analyze-linuxcnc-wasm-blockers.sh
+    printf 'SHIM_LISTER='
+    sha256sum list-linuxcnc-wasm-safe-shims.sh
+    printf 'MANIFEST_PATH=%s\n' "$manifest"
+    printf 'MANIFEST='
+    sha256sum "$manifest"
+    printf 'LINUXCNC_ROOT=%s\n' "$linuxcnc_root"
+    write_manifest_source_stats
+    write_shim_source_hashes
+} > "$next_signature"
+if [[ -f "$cache_signature" && -f "$cache_output" ]] && cmp -s "$cache_signature" "$next_signature"; then
+    output=$(cat "$cache_output")
+    rm -f "$next_signature"
+else
+    output=$(CNC_SIM_PREFLIGHT_CACHE_DIR="$cache_dir/preflight" LINUXCNC_ROOT="$linuxcnc_root" ./analyze-linuxcnc-wasm-blockers.sh "$manifest")
+    printf '%s\n' "$output" > "$cache_output"
+    mv "$next_signature" "$cache_signature"
+fi
+
 grep -F "[manifest]" <<<"$output" >/dev/null
 grep -F "core=25" <<<"$(sed -n '/^\[manifest\]/,/^$/p' <<<"$output")" >/dev/null
 grep -F "blocked=9" <<<"$(sed -n '/^\[manifest\]/,/^$/p' <<<"$output")" >/dev/null