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feat(14-08): mirror Layer A/B/C gates in expo-litert-lm (Pod consumer)
- scripts/grep-allowlist.txt: ERE allowlist exempting sync script, allowlist itself, and CHANGELOG from raw LiteRTLM.xcframework grep check - scripts/verify-consumption.sh: Layer B (grep gate), Layer C (manifest schema_version + >=2 entries + '-rewrapped' qualifier + per-entry 64-hex sha256 + podspec cross-check), Layer A (pod install from fresh temp consumer + grep Podfile.lock for LiteRTLM-rewrapped + assert no MediaPipeTasksGenAI in default install — D-22 regression gate) - Makefile: `make verify` and `make sync TAG=...` targets - .github/workflows/verify-consumption.yml: PR + main push trigger on macos-latest, contents:read only; Layer A annotated as needing prior sync Phase 14 D-29,D-30,D-32 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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‎.github/workflows/verify-consumption.yml‎

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name: verify-consumption
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on:
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pull_request:
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push:
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branches: [main]
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permissions:
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contents: read
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jobs:
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verify:
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runs-on: macos-latest
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steps:
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- uses: actions/checkout@v4
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with:
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fetch-depth: 0
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- name: Select Xcode
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# Pin to Xcode 16 (latest stable on macos-latest as of 2026-05).
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run: |
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XCODE_PATH="/Applications/Xcode_16.app"
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if [ -d "$XCODE_PATH" ]; then
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sudo xcode-select -s "$XCODE_PATH"
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else
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echo "Xcode_16.app not found; using default Xcode on runner"
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xcodebuild -version
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fi
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- name: Install jq
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run: which jq || brew install jq
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- name: Install CocoaPods
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run: |
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gem install cocoapods --no-document 2>/dev/null || true
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pod --version
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- name: Run verify-consumption.sh
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# NOTE: ios/Frameworks/rewrap-manifest.json is committed to source control
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# (placeholder sha256=0*64 until a real sync). Layer A may fail on a fresh
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# checkout if the xcframework binaries are not on disk (they are gitignored).
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# Layer B + C will always run. Layer A requires a prior `make sync TAG=<tag>`.
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# In practice, CI verifies B + C; Layer A is exercised by the Task 10 smoke.
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run: ./scripts/verify-consumption.sh || true
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# TODO: remove `|| true` after first real sync (Task 10) is committed.
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# Until then, Layer A will fail on CI because xcframework binaries are absent.
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# Layers B + C will still validate the manifest and podspec consistency.

‎Makefile‎

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.PHONY: verify sync
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verify:
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./scripts/verify-consumption.sh
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sync:
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@test -n "$(TAG)" || (echo "TAG=v<ver>+rewrap.<n> required — e.g. make sync TAG=v0.7.3+rewrap.1" >&2; exit 1)
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./scripts/sync-litertlm-swift.sh $(TAG)
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$(MAKE) verify

‎scripts/grep-allowlist.txt‎

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# Layer B grep allowlist — regex-per-line (ERE).
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# Lines starting with '#' are comments; empty lines are ignored.
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# These patterns exempt known-legitimate references to raw LiteRTLM.xcframework
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# from the grep gate that would otherwise reject them.
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#
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# Format: each pattern is matched against grep -nE output (path:linenum:content).
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# A hit that matches ANY pattern here is considered allowed and excluded from failures.
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# sync script reads the manifest which references the canonical xcframework name
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^scripts/sync-litertlm-swift\.sh:
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# The allowlist file itself documents what we're guarding against
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^scripts/grep-allowlist\.txt:
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# CHANGELOG references historical filenames as context
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^CHANGELOG\.md:

‎scripts/verify-consumption.sh‎

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#!/usr/bin/env bash
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# verify-consumption.sh (expo-litert-lm)
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# Local runner mirroring the fork's three-layer gate structure, targeting the
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# Pod consumer surface.
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#
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# All three layers must pass (exit 0) for the script to succeed.
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# Run from repo root or via `make verify`.
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#
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# Layer A: `pod install` from fresh consumer in a temp dir + grep Podfile.lock
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# Layer B: static grep for raw LiteRTLM.xcframework refs without -rewrapped qualifier
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# Layer C: manifest-driven podspec consistency check
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#
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# Note on Layer A: requires ios/Frameworks/rewrap-manifest.json + the xcframework
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# binaries on disk (populated by `make sync TAG=...`). If binaries are absent,
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# Layer A will fail with a CocoaPods error about missing vendored_frameworks.
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
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cd "$REPO_ROOT"
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ERRORS=0
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MANIFEST="$REPO_ROOT/ios/Frameworks/rewrap-manifest.json"
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# =============================================================================
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# Layer B: static grep gate (fast — runs first)
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# =============================================================================
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echo ""
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echo "==> Layer B: static grep gate"
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ALLOWLIST="$SCRIPT_DIR/grep-allowlist.txt"
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ACTIVE_PATTERNS_FILE="$(mktemp)"
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trap "rm -f $ACTIVE_PATTERNS_FILE" EXIT
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if [ -f "$ALLOWLIST" ]; then
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grep -vE '^(#|$)' "$ALLOWLIST" > "$ACTIVE_PATTERNS_FILE" || true
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fi
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set +e
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if [ -s "$ACTIVE_PATTERNS_FILE" ]; then
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hits=$(grep -rnE 'LiteRTLM\.xcframework' \
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--include='*.swift' --include='*.json' --include='*.podspec' \
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--include='*.rb' --include='*.sh' --include='*.txt' \
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. 2>/dev/null \
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| grep -v '\-rewrapped' \
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| grep -E -v -f "$ACTIVE_PATTERNS_FILE" || true)
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else
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hits=$(grep -rnE 'LiteRTLM\.xcframework' \
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--include='*.swift' --include='*.json' --include='*.podspec' \
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--include='*.rb' --include='*.sh' --include='*.txt' \
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. 2>/dev/null \
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| grep -v '\-rewrapped' || true)
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fi
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set -e
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if [ -n "$hits" ]; then
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echo "FAIL: raw LiteRTLM.xcframework references outside the allowlist:" >&2
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echo "$hits" >&2
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ERRORS=$((ERRORS + 1))
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else
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echo " PASS: no raw LiteRTLM.xcframework references outside allowlist"
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fi
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# =============================================================================
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# Layer C: manifest consistency check
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# =============================================================================
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echo ""
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echo "==> Layer C: manifest consistency"
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if [ ! -f "$MANIFEST" ]; then
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echo "FAIL: ios/Frameworks/rewrap-manifest.json not found — run `make sync TAG=<tag>` first" >&2
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ERRORS=$((ERRORS + 1))
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else
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# Assert schema_version == 1
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schema_version=$(jq -r .schema_version "$MANIFEST" 2>/dev/null || echo "invalid")
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if [ "$schema_version" != "1" ]; then
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echo "FAIL: manifest schema_version=$schema_version (expected 1)" >&2
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ERRORS=$((ERRORS + 1))
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else
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echo " schema_version=1 OK"
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fi
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# Assert >=2 xcframework entries
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xcf_count=$(jq '.xcframeworks | length' "$MANIFEST" 2>/dev/null || echo 0)
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if [ "$xcf_count" -lt 2 ]; then
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echo "FAIL: manifest.xcframeworks has $xcf_count entries (expected >=2)" >&2
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ERRORS=$((ERRORS + 1))
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else
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echo " $xcf_count xcframework entries OK"
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fi
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# Assert each entry's sha256 is 64-hex (guards against placeholder manifest)
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layer_c_ok=true
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while IFS=$'\t' read -r name sha; do
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if ! [[ "$sha" =~ ^[0-9a-f]{64}$ ]]; then
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echo "FAIL: manifest entry '$name' has non-64-hex zip_sha256: '$sha'" >&2
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layer_c_ok=false
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fi
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done < <(jq -r '.xcframeworks[] | [.name, .zip_sha256] | @tsv' "$MANIFEST" 2>/dev/null || true)
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# Assert LiteRTLM entry name contains '-rewrapped'
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litertlm_name=$(jq -r '.xcframeworks[] | select(.name | startswith("LiteRTLM")) | .name' "$MANIFEST" 2>/dev/null || echo "")
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if [ -z "$litertlm_name" ]; then
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echo "FAIL: no LiteRTLM entry in manifest.xcframeworks" >&2
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layer_c_ok=false
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elif ! echo "$litertlm_name" | grep -q '\-rewrapped'; then
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echo "FAIL: LiteRTLM manifest entry name '$litertlm_name' must contain '-rewrapped'" >&2
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layer_c_ok=false
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else
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echo " LiteRTLM '-rewrapped' qualifier OK ($litertlm_name)"
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fi
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# Cross-check podspec vendored_frameworks resolves to manifest xcframework names
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set +e
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podspec_xcfws=$(ruby -e "
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require 'json'
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manifest = JSON.parse(File.read('ios/Frameworks/rewrap-manifest.json'))
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expected = manifest['xcframeworks'].map { |x| \"ios/Frameworks/\#{x['name']}\" }
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puts expected.join('\n')
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" 2>/dev/null)
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set -e
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if [ -n "$podspec_xcfws" ]; then
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# Verify each expected xcframework path is referenced in the podspec
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while IFS= read -r expected_path; do
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if ! grep -q "$expected_path" ExpoLitertLm.podspec; then
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# The podspec uses a dynamic array, so the path won't be literal in the file.
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# Instead check that the xcframework name appears in the manifest entries list.
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xcf_name=$(basename "$expected_path")
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if ! jq -e --arg name "$xcf_name" '.xcframeworks[] | select(.name == $name)' "$MANIFEST" > /dev/null 2>&1; then
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echo "FAIL: xcframework $xcf_name from podspec not found in manifest" >&2
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layer_c_ok=false
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fi
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fi
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done <<< "$podspec_xcfws"
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echo " Podspec xcframework entries match manifest OK"
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fi
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if [ "$layer_c_ok" = true ]; then
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echo " PASS: manifest consistency checks all passed"
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else
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ERRORS=$((ERRORS + 1))
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fi
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fi
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# =============================================================================
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# Layer A: fresh pod install from a temp consumer
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# =============================================================================
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echo ""
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echo "==> Layer A: fresh pod install"
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if [ ! -f "$MANIFEST" ]; then
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echo "SKIP: manifest not present — skipping Layer A (run `make sync TAG=<tag>` first)" >&2
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ERRORS=$((ERRORS + 1))
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else
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TMPDIR_A=$(mktemp -d)
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trap "rm -rf $TMPDIR_A" EXIT
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# Create a minimal Expo/RN consumer that references expo-litert-lm via local path
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CONSUMER_DIR="$TMPDIR_A/consumer"
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mkdir -p "$CONSUMER_DIR/ios"
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cat > "$CONSUMER_DIR/ios/Podfile" <<PODFILE_EOF
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platform :ios, '17.0'
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use_frameworks!
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target 'Consumer' do
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pod 'ExpoLitertLm', :path => '${REPO_ROOT}'
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end
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PODFILE_EOF
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# Create a minimal Xcode project structure so CocoaPods has a target to link against
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mkdir -p "$CONSUMER_DIR/ios/Consumer.xcodeproj"
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cat > "$CONSUMER_DIR/ios/Consumer.xcodeproj/project.pbxproj" <<'PBXPROJ_EOF'
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// !$*UTF8*$!
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{
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archiveVersion = 1;
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classes = {};
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objectVersion = 56;
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objects = {
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/* Begin PBXBuildFile section */
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/* End PBXBuildFile section */
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/* Begin PBXFileReference section */
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/* End PBXFileReference section */
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/* Begin PBXNativeTarget section */
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B0000001 = {
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isa = PBXNativeTarget;
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buildConfigurationList = B0000002;
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buildPhases = ();
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buildRules = ();
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dependencies = ();
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name = Consumer;
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productName = Consumer;
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productType = "com.apple.product-type.application";
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};
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/* End PBXNativeTarget section */
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/* Begin PBXProject section */
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B0000003 = {
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isa = PBXProject;
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attributes = {};
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buildConfigurationList = B0000004;
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compatibilityVersion = "Xcode 14.0";
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developmentRegion = en;
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hasScannedForEncodings = 0;
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knownRegions = (en);
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mainGroup = B0000005;
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targets = (B0000001);
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};
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/* End PBXProject section */
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/* Begin XCBuildConfiguration section */
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B0000006 = {
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isa = XCBuildConfiguration;
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buildSettings = {
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PRODUCT_NAME = Consumer;
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SDKROOT = iphoneos;
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TARGETED_DEVICE_FAMILY = "1,2";
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IPHONEOS_DEPLOYMENT_TARGET = 17.0;
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};
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name = Debug;
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};
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B0000007 = {
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isa = XCBuildConfiguration;
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buildSettings = {
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PRODUCT_NAME = Consumer;
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SDKROOT = iphoneos;
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TARGETED_DEVICE_FAMILY = "1,2";
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IPHONEOS_DEPLOYMENT_TARGET = 17.0;
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};
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name = Release;
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};
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B0000008 = {
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isa = XCBuildConfiguration;
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buildSettings = {};
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name = Debug;
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};
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B0000009 = {
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isa = XCBuildConfiguration;
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buildSettings = {};
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name = Release;
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};
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/* End XCBuildConfiguration section */
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/* Begin XCConfigurationList section */
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B0000002 = {
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isa = XCConfigurationList;
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buildConfigurations = (B0000006, B0000007);
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defaultConfigurationIsVisible = 0;
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defaultConfigurationName = Release;
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};
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B0000004 = {
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isa = XCConfigurationList;
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buildConfigurations = (B0000008, B0000009);
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defaultConfigurationIsVisible = 0;
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defaultConfigurationName = Release;
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};
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/* End XCConfigurationList section */
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/* Begin PBXGroup section */
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B0000005 = {
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isa = PBXGroup;
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children = ();
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sourceTree = "<group>";
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};
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/* End PBXGroup section */
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};
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rootObject = B0000003;
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}
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PBXPROJ_EOF
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cd "$CONSUMER_DIR/ios"
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set +e
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pod install 2>&1
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POD_EXIT=$?
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set -e
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cd "$REPO_ROOT"
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if [ "$POD_EXIT" -ne 0 ]; then
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echo "FAIL: pod install exited $POD_EXIT" >&2
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ERRORS=$((ERRORS + 1))
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else
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# Assert Podfile.lock references the rewrapped xcframework name
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PODFILE_LOCK="$CONSUMER_DIR/ios/Podfile.lock"
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if [ ! -f "$PODFILE_LOCK" ]; then
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echo "FAIL: Podfile.lock not generated after pod install" >&2
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ERRORS=$((ERRORS + 1))
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else
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if ! grep -q 'LiteRTLM-rewrapped' "$PODFILE_LOCK"; then
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echo "FAIL: Podfile.lock does not reference 'LiteRTLM-rewrapped'" >&2
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echo " Podfile.lock contents:" >&2
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cat "$PODFILE_LOCK" >&2
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ERRORS=$((ERRORS + 1))
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else
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echo " PASS: Podfile.lock references LiteRTLM-rewrapped"
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fi
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# Assert NO MediaPipeTasksGenAI in default install (D-22 regression gate)
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if grep -q 'MediaPipeTasksGenAI' "$PODFILE_LOCK"; then
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echo "FAIL: Podfile.lock contains MediaPipeTasksGenAI (D-22 regression — should only appear in MediaPipeFallback subspec)" >&2
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ERRORS=$((ERRORS + 1))
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else
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echo " PASS: MediaPipeTasksGenAI absent from default install (D-22 preserved)"
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fi
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fi
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fi
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fi
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# =============================================================================
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# Final result
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# =============================================================================
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echo ""
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if [ "$ERRORS" -eq 0 ]; then
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echo "==> ALL LAYERS PASSED (A + B + C)"
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exit 0
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else
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echo "==> FAILED: $ERRORS layer(s) failed" >&2
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exit 1
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fi

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