154 lines
4.6 KiB
Bash
Executable File
154 lines
4.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# Reproducible custom WebRTC xcframework build for Rosetta iOS.
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# Applies the same E2EE timestamp patch as the Android custom build.
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#
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# Requirements:
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# - macOS with Xcode (Command Line Tools)
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# - depot_tools in PATH (run bootstrap_depot_tools.sh first if needed)
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# - python3, git
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#
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# Usage:
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# cd /path/to/Rosetta/tools/webrtc-custom-ios
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# ./build_custom_webrtc_ios.sh
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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ROSETTA_DIR="$(cd "${SCRIPT_DIR}/../.." && pwd)"
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PATCH_FILE="${SCRIPT_DIR}/patches/0001-audio-e2ee-pass-rtp-timestamp-as-additional-data.patch"
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# Default: WebRTC M125 family — same as Android (branch-heads/6422).
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WEBRTC_BRANCH="${WEBRTC_BRANCH:-branch-heads/6422}"
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WEBRTC_TAG="${WEBRTC_TAG:-}"
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# Source checkout root (contains src/).
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WEBRTC_ROOT="${WEBRTC_ROOT:-$HOME/webrtc_ios}"
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WEBRTC_SRC="${WEBRTC_SRC:-${WEBRTC_ROOT}/src}"
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# Output framework consumed by Xcode project.
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OUT_FRAMEWORK="${OUT_FRAMEWORK:-${ROSETTA_DIR}/Frameworks/WebRTC.xcframework}"
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# Sync tuning (chromium.googlesource rate limits).
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SYNC_JOBS="${SYNC_JOBS:-1}"
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SYNC_RETRIES="${SYNC_RETRIES:-8}"
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SYNC_RETRY_BASE_SEC="${SYNC_RETRY_BASE_SEC:-20}"
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echo "[webrtc-ios] root: ${WEBRTC_ROOT}"
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echo "[webrtc-ios] src: ${WEBRTC_SRC}"
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echo "[webrtc-ios] out: ${OUT_FRAMEWORK}"
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echo "[webrtc-ios] sync jobs: ${SYNC_JOBS}, retries: ${SYNC_RETRIES}"
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export DEPOT_TOOLS_UPDATE=0
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retry_cmd() {
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local max_attempts="$1"
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shift
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local attempt=1
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local backoff="${SYNC_RETRY_BASE_SEC}"
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while true; do
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if "$@"; then
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return 0
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fi
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if (( attempt >= max_attempts )); then
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return 1
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fi
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echo "[webrtc-ios] attempt ${attempt}/${max_attempts} failed, retrying in ${backoff}s: $*"
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sleep "${backoff}"
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backoff=$(( backoff * 2 ))
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if (( backoff > 300 )); then
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backoff=300
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fi
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attempt=$(( attempt + 1 ))
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done
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}
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sync_with_retry() {
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local attempt=1
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while true; do
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if gclient sync -D --jobs "${SYNC_JOBS}"; then
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return 0
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fi
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if (( attempt >= SYNC_RETRIES )); then
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echo "[webrtc-ios] ERROR: gclient sync failed after ${SYNC_RETRIES} attempts"
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return 1
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fi
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local wait_sec=$(( SYNC_RETRY_BASE_SEC * attempt ))
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if (( wait_sec > 300 )); then
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wait_sec=300
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fi
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echo "[webrtc-ios] gclient sync failed (attempt ${attempt}/${SYNC_RETRIES}), sleeping ${wait_sec}s..."
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sleep "${wait_sec}"
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attempt=$(( attempt + 1 ))
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done
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}
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if ! command -v fetch >/dev/null 2>&1; then
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echo "[webrtc-ios] ERROR: depot_tools 'fetch' not found in PATH"
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echo "[webrtc-ios] Run: git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git"
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echo "[webrtc-ios] Then: export PATH=\$PATH:/path/to/depot_tools"
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exit 1
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fi
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# Step 1: Checkout WebRTC source for iOS
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if [[ ! -d "${WEBRTC_SRC}/.git" ]]; then
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echo "[webrtc-ios] checkout not found, fetching webrtc_ios..."
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mkdir -p "${WEBRTC_ROOT}"
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pushd "${WEBRTC_ROOT}" >/dev/null
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retry_cmd "${SYNC_RETRIES}" fetch --nohooks --no-history webrtc_ios
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sync_with_retry
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popd >/dev/null
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fi
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pushd "${WEBRTC_SRC}" >/dev/null
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# Step 2: Sync to target branch
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echo "[webrtc-ios] syncing source..."
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retry_cmd "${SYNC_RETRIES}" git fetch --all --tags
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if [[ -n "${WEBRTC_TAG}" ]]; then
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retry_cmd "${SYNC_RETRIES}" git checkout "${WEBRTC_TAG}"
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else
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if git show-ref --verify --quiet "refs/remotes/origin/${WEBRTC_BRANCH}"; then
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retry_cmd "${SYNC_RETRIES}" git checkout -B "${WEBRTC_BRANCH}" "origin/${WEBRTC_BRANCH}"
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else
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retry_cmd "${SYNC_RETRIES}" git checkout "${WEBRTC_BRANCH}"
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fi
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if git rev-parse --abbrev-ref --symbolic-full-name '@{u}' >/dev/null 2>&1; then
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retry_cmd "${SYNC_RETRIES}" git pull --ff-only
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fi
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fi
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sync_with_retry
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# Step 3: Apply E2EE patch
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echo "[webrtc-ios] applying Rosetta E2EE patch..."
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git reset --hard
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echo "[webrtc-ios] apply $(basename "${PATCH_FILE}")"
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git apply --check "${PATCH_FILE}"
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git apply "${PATCH_FILE}"
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echo "[webrtc-ios] patch applied successfully"
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# Step 4: Build iOS framework
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echo "[webrtc-ios] building xcframework (this takes 30-60 minutes)..."
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mkdir -p "$(dirname "${OUT_FRAMEWORK}")"
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# Remove previous build if exists
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rm -rf "${OUT_FRAMEWORK}"
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python3 tools_webrtc/ios/build_ios_libs.py \
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--build-dir out_rosetta_ios \
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--output-dir "$(dirname "${OUT_FRAMEWORK}")" \
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--arch arm64 x86_64 \
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--extra-gn-args "is_debug=false is_component_build=false rtc_include_tests=false rtc_build_examples=false"
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echo "[webrtc-ios] done"
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echo "[webrtc-ios] framework: ${OUT_FRAMEWORK}"
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echo ""
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echo "Next steps:"
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echo " 1. Remove stasel/WebRTC SPM dependency from Xcode"
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echo " 2. Add ${OUT_FRAMEWORK} as Embedded Framework"
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echo " 3. Build and verify: logs should show ad=8 (not ad=0)"
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popd >/dev/null
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