Task 1.2: introduce a single path resolver so no harness script hardcodes `.specify/...` scattered across the tree. casan-paths.sh resolves four roots (HARNESS/STATE/GOVERNANCE/APP) by marker-based walk-up from its own location — never `git rev-parse` (git root is the repo PARENT here, not the app dir). - 101 bash scripts/tests: 238 hardcoded `$PROJECT_ROOT/.specify/...` refs rewritten to CASAN_HARNESS_ROOT (code) / CASAN_STATE_ROOT (logs,state) / CASAN_GOVERNANCE_ROOT. Sandbox test vars ($WORK/$TP/$FP/$T1_WORK) left untouched. - Roots are NOT exported: each script/subprocess self-resolves from its own tree, matching the original per-script semantics and preserving hermetic sandbox isolation (node casan-step.mjs, copied telemetry/rollback scripts must not inherit real roots). - Sandbox tests that copy a harness script now also copy casan-paths.sh (its new sibling dependency): adversarial (verify-audit-chain/verify-tool-audit/rollback) + track-a (security-check/telemetry-integrity). - control-plane-settings.json reclassified as STATE (untracked runtime store). Roots all still resolve to `.specify` in this monolithic layout, so behavior is unchanged. Full gate: PASS=64 FAIL=0 SKIP=3 (adversarial 44/0, track-a 25/0). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
56 lines
2.6 KiB
Bash
56 lines
2.6 KiB
Bash
#!/usr/bin/env bash
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set -uo pipefail
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# CASAN Plan-16 SEC-12 — drift-detect semantic invariants (beyond char-similarity).
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#
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# Char-similarity alone misses a SEMANTIC inversion: dropping a negation
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# ("must NOT deploy" -> "must deploy") keeps similarity ~0.97 but flips the meaning,
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# and previously passed. Now a candidate that removes negations present in the
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# golden, or that drops a must-keep invariant, FAILS. Proves the flip is caught and
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# identical/benign content still passes.
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#
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# Deterministic; hermetic.
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "$SCRIPT_DIR/../scripts/bash/casan-paths.sh"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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DD="$CASAN_HARNESS_ROOT/scripts/bash/drift-detect.sh"
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WORK="$(mktemp -d)"
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trap 'rm -rf "$WORK"' EXIT
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PASS=0; FAIL=0
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pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
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fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
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rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
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echo "===== Plan-16 SEC-12: drift semantic invariants ====="
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printf 'You MUST NOT deploy to production without explicit human approval.\n' > "$WORK/golden.txt"
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printf 'You MUST deploy to production without explicit human approval.\n' > "$WORK/flip.txt"
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cp "$WORK/golden.txt" "$WORK/same.txt"
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# Negation flip: near-identical text (similarity ~0.97) but a "NOT" vanished.
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[[ "$(rc_of bash "$DD" "$WORK/golden.txt" "$WORK/flip.txt" "$WORK/r1.json")" -ne 0 ]] \
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&& pass "negation flip FAILS despite high similarity" \
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|| fail "negation flip passed (semantic inversion missed)"
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grep -q 'negation_dropped' "$WORK/r1.json" \
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&& pass "report records the negation_dropped reason" || fail "reason not recorded"
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# Identical golden/candidate still passes.
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[[ "$(rc_of bash "$DD" "$WORK/golden.txt" "$WORK/same.txt" "$WORK/r2.json")" -eq 0 ]] \
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&& pass "identical content passes (no false positive)" || fail "identical content flagged"
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# must-keep invariant missing from candidate → FAIL.
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printf 'MUST NOT deploy\n' > "$WORK/mustkeep.txt"
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[[ "$(rc_of env CASAN_DRIFT_MUSTKEEP_FILE="$WORK/mustkeep.txt" bash "$DD" "$WORK/golden.txt" "$WORK/flip.txt" "$WORK/r3.json")" -ne 0 ]] \
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&& pass "missing must-keep invariant FAILS" || fail "missing must-keep not detected"
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# must-keep invariant present → pass.
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printf 'production\n' > "$WORK/mustkeep2.txt"
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[[ "$(rc_of env CASAN_DRIFT_MUSTKEEP_FILE="$WORK/mustkeep2.txt" bash "$DD" "$WORK/golden.txt" "$WORK/same.txt" "$WORK/r4.json")" -eq 0 ]] \
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&& pass "present must-keep invariant passes" || fail "present must-keep wrongly failed"
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echo ""
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echo "===== SEC-12 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
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[[ "$FAIL" -eq 0 ]] || exit 1
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