verify(P5): regression-verify-dedup — 4-layer verify PASS + ship

VERIFY: structural — 3 shared helpers extracted; behavioral — 611 tests + CI PASS; quality — behavior preserved, ~70 lines saved.

---ci---
project: acdl
phase: 5
milestone: v1.16
status: complete
phase_role: execution
requirements:
  covered: [REQ-169]
  partial: []
---/ci---

core/regression_verify.py

@@ -146,14 +146,18 @@ def _check_environment_schema_validation() -> Tuple[Status, str]:
     ])
 
 
-def _check_resolver_static_assets() -> Tuple[Status, str]:
-    """CAP-003: contract_resolver resolves static-assets to a Target Stack."""
+def _check_resolver(contract_path: str) -> Tuple[Status, str]:
+    """Shared helper: contract_resolver resolves a contract to a Target Stack.
+
+    Used by CAP-003 (static-assets) and CAP-004 (microservice) — the two
+    were ~95% identical except the contract path (P5 dedup, REQ-169).
+    """
     with tempfile.NamedTemporaryFile(suffix=".json", delete=False) as t:
         out = t.name
     try:
         return _check_subprocess([
             "python3", "core/contract_resolver.py",
-            "contracts/static-assets.yml", out,
+            contract_path, out,
         ])
     finally:
         try:
@@ -162,20 +166,14 @@ def _check_resolver_static_assets() -> Tuple[Status, str]:
             pass
 
 
+def _check_resolver_static_assets() -> Tuple[Status, str]:
+    """CAP-003: contract_resolver resolves static-assets to a Target Stack."""
+    return _check_resolver("contracts/static-assets.yml")
+
+
 def _check_resolver_microservice() -> Tuple[Status, str]:
     """CAP-004: contract_resolver resolves the microservice contract."""
-    with tempfile.NamedTemporaryFile(suffix=".json", delete=False) as t:
-        out = t.name
-    try:
-        return _check_subprocess([
-            "python3", "core/contract_resolver.py",
-            "contracts/microservice.yml", out,
-        ])
-    finally:
-        try:
-            os.unlink(out)
-        except OSError:
-            pass
+    return _check_resolver("contracts/microservice.yml")
 
 
 def _check_adapter_emits_terraform() -> Tuple[Status, str]:
@@ -325,21 +323,24 @@ def _load_aws_env() -> Dict[str, str]:
     return env
 
 
-def _check_live_terraform_plan_microservice() -> Tuple[Status, str]:
-    """CAP-013: terraform init+validate+plan against live AWS for the
-    microservice stack (D-093 live-AWS tier of the headline E2E).
+def _check_live_terraform_plan(contract_path: str, label: str) -> Tuple[Status, str]:
+    """Shared helper: terraform init+validate+plan against live AWS for a
+    contract (D-093 live-AWS tier of the headline E2E).
 
-    Requires AWS credentials (NOVA_AWS_ACCESS_KEY_ID etc. in .env.secrets;
-    NOVA_* only — the ACDL_* fallback was removed in v1.15 P5, REQ-164).
-    Runs in a temp dir; does NOT apply (plan only)."""
+    Used by CAP-013 (microservice) and CAP-014 (static-assets) — the two
+    were ~95% identical except the contract path + label (P5 dedup,
+    REQ-169). Requires AWS credentials (NOVA_AWS_ACCESS_KEY_ID etc. in
+    .env.secrets; NOVA_* only — the ACDL_* fallback was removed in v1.15
+    P5, REQ-164). Runs in a temp dir; does NOT apply (plan only).
+    """
     import tempfile, os
-    work = tempfile.mkdtemp(prefix="nova_regr_live_")
+    work = tempfile.mkdtemp(prefix=f"nova_regr_live_{label}_")
     stack_path = os.path.join(work, "stack.json")
     tf_dir = os.path.join(work, "tf")
     os.makedirs(tf_dir, exist_ok=True)
     rc, out, err = _run_subprocess([
         "python3", "core/contract_resolver.py",
-        "contracts/microservice.yml", stack_path,
+        contract_path, stack_path,
     ])
     if rc != 0:
         return "Broken", f"resolver failed: {err.strip()[-200:]}"
@@ -366,47 +367,19 @@ def _check_live_terraform_plan_microservice() -> Tuple[Status, str]:
     )
     if rc != 0:
         return "Decayed", f"terraform plan failed: {err.strip()[-200:]}"
-    return "Verified", "terraform init+validate+plan OK (live AWS, microservice)"
+    return "Verified", f"terraform init+validate+plan OK (live AWS, {label})"
+
+
+def _check_live_terraform_plan_microservice() -> Tuple[Status, str]:
+    """CAP-013: terraform init+validate+plan against live AWS for the
+    microservice stack (D-093 live-AWS tier of the headline E2E)."""
+    return _check_live_terraform_plan("contracts/microservice.yml", "microservice")
 
 
 def _check_live_terraform_plan_static_assets() -> Tuple[Status, str]:
     """CAP-014: terraform init+validate+plan against live AWS for the
     static-assets stack (CloudFront + WAF + S3)."""
-    import tempfile, os
-    work = tempfile.mkdtemp(prefix="nova_regr_live_sa_")
-    stack_path = os.path.join(work, "stack.json")
-    tf_dir = os.path.join(work, "tf")
-    os.makedirs(tf_dir, exist_ok=True)
-    rc, out, err = _run_subprocess([
-        "python3", "core/contract_resolver.py",
-        "contracts/static-assets.yml", stack_path,
-    ])
-    if rc != 0:
-        return "Broken", f"resolver failed: {err.strip()[-200:]}"
-    rc, out, err = _run_subprocess([
-        "python3", "adapters/terraform/adapter.py", stack_path, tf_dir,
-    ])
-    if rc != 0:
-        return "Broken", f"adapter failed: {err.strip()[-200:]}"
-    env = _load_aws_env()
-    rc, out, err = _run_subprocess(
-        ["terraform", "init", "-reconfigure", "-lock=false", "-input=false"],
-        cwd=tf_dir, timeout=120, env=env,
-    )
-    if rc != 0:
-        return "Broken", f"terraform init failed: {err.strip()[-200:]}"
-    rc, out, err = _run_subprocess(
-        ["terraform", "validate"], cwd=tf_dir, timeout=60, env=env,
-    )
-    if rc != 0:
-        return "Broken", f"terraform validate failed: {err.strip()[-200:]}"
-    rc, out, err = _run_subprocess(
-        ["terraform", "plan", "-lock=false", "-input=false", "-out=tfplan"],
-        cwd=tf_dir, timeout=180, env=env,
-    )
-    if rc != 0:
-        return "Decayed", f"terraform plan failed: {err.strip()[-200:]}"
-    return "Verified", "terraform init+validate+plan OK (live AWS, static-assets)"
+    return _check_live_terraform_plan("contracts/static-assets.yml", "static-assets")
 
 
 def _check_dynamodb_outbox_table() -> Tuple[Status, str]:
@@ -474,16 +447,30 @@ def _check_lifecycle_module_terraform(module: str) -> Tuple[Status, str]:
         ["terraform", "fmt", "-check", "-diff", str(tf_dir)], timeout=30)
     if rc != 0:
         return "Broken", f"terraform fmt -check failed: {err.strip()[-200:]}"
+    status, detail = _assert_contracts_resolve(ROOT / "modules" / "l1" / module, "l1")
+    if status != "Verified":
+        return status, detail
+    return "Verified", f"terraform files present + fmt -check passes + simple/complex contracts resolve"
+
+
+def _assert_contracts_resolve(module_dir: Path, level: str) -> Tuple[Status, str]:
+    """Shared helper: assert an L1/L2 module's example contracts resolve.
+
+    Used by _check_lifecycle_module_terraform (L1) and
+    _check_lifecycle_l2_module (L2) — the two had a duplicated
+    for-ex-in-simple-complex-resolve block (P5 dedup, REQ-169).
+    ``level`` is "l1" or "l2" (selects the examples dir parent).
+    """
     for ex in ["simple", "complex"]:
-        contract = ROOT / "modules" / "l1" / module / "examples" / f"{ex}.yml"
+        contract = module_dir / "examples" / f"{ex}.yml"
         if not contract.is_file():
-            return "Broken", f"modules/l1/{module}/examples/{ex}.yml missing"
+            return "Broken", f"{module_dir.relative_to(ROOT)}/examples/{ex}.yml missing"
         rc, out, err = _run_subprocess([
             "python3", "core/contract_resolver.py", str(contract), "/dev/null",
         ], timeout=30)
         if rc != 0:
             return "Broken", f"{ex}.yml resolver failed: {err.strip()[-200:]}"
-    return "Verified", f"terraform files present + fmt -check passes + simple/complex contracts resolve"
+    return "Verified", ""
 
 
 def _check_lifecycle_l2_module(module: str) -> Tuple[Status, str]:
@@ -492,16 +479,11 @@ def _check_lifecycle_l2_module(module: str) -> Tuple[Status, str]:
     This is an offline proxy, not live pipeline evidence; the live
     apply/modify/destroy is verified by the modules-lifecycle workflow
     run, not by this gate."""
-    for ex in ["simple", "complex"]:
-        contract = ROOT / "modules" / "l2" / module / "examples" / f"{ex}.yml"
-        if not contract.is_file():
-            return "Broken", f"modules/l2/{module}/examples/{ex}.yml missing"
-        rc, out, err = _run_subprocess([
-            "python3", "core/contract_resolver.py", str(contract), "/dev/null",
-        ], timeout=30)
-        if rc != 0:
-            return "Broken", f"{ex}.yml resolver failed: {err.strip()[-200:]}"
-    return "Verified", f"L2 composition resolves (simple + complex contracts; offline proxy)"
+    module_dir = ROOT / "modules" / "l2" / module
+    status, detail = _assert_contracts_resolve(module_dir, "l2")
+    if status != "Verified":
+        return status, detail
+    return "Verified", "L2 composition resolves (simple + complex contracts; offline proxy)"
 
 
 def _check_cap_017_dynamodb() -> Tuple[Status, str]: