phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

tools/selfhost/bootstrap_s1_s2_s3_repeat.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+# bootstrap_s1_s2_s3_repeat.sh — Run generator command 3 times and ensure normalized v1 hash matches
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
+LIB_TR="$ROOT/tools/smokes/v2/lib/test_runner.sh"
+if [ -f "$LIB_TR" ]; then source "$LIB_TR"; else echo "[FAIL] missing $LIB_TR" >&2; exit 2; fi
+
+if [ $# -lt 1 ]; then
+  echo "Usage: $0 '<generator_cmd>'" >&2
+  exit 2
+fi
+
+GEN="$1"
+tmp1="/tmp/hako_repeat_1_$$.json"
+tmp2="/tmp/hako_repeat_2_$$.json"
+tmp3="/tmp/hako_repeat_3_$$.json"
+trap 'rm -f "$tmp1" "$tmp2" "$tmp3"' EXIT
+
+eval "$GEN" > "$tmp1"
+eval "$GEN" > "$tmp2"
+eval "$GEN" > "$tmp3"
+
+h1=$(v1_normalized_hash "$tmp1" || true)
+h2=$(v1_normalized_hash "$tmp2" || true)
+h3=$(v1_normalized_hash "$tmp3" || true)
+
+echo "[H1] $h1" >&2
+echo "[H2] $h2" >&2
+echo "[H3] $h3" >&2
+
+if [ -z "$h1" ] || [ -z "$h2" ] || [ -z "$h3" ]; then
+  echo "[FAIL] invalid JSON(s) from generator" >&2
+  exit 2
+fi
+
+if [ "$h1" = "$h2" ] && [ "$h2" = "$h3" ]; then
+  echo "[PASS] repeat hashes match"
+  exit 0
+fi
+echo "[FAIL] repeat hashes differ" >&2
+exit 1
+