create.yml

name: Create SDK

on:
  workflow_dispatch:
    inputs:
      ipsw_device:
        description: 'The device ID to download the IPSW for, e.g. "iPhone11,2"'
        required: true
        type: string
      ipsw_version:
        description: 'The version to download the IPSW for, e.g. "16.5"'
        required: true
        type: string
      dsc_basename:
        description: 'The basename for the dyld_shared_cache in the IPSW'
        required: true
        type: string
        default: 'dyld_shared_cache_arm64e'
      xcode_version:
        description: 'Xcode version, e.g. "14.4". Primarily used for the base SDK'
        required: true
        type: string
      xcrun_sdk_name:
        description: 'The value to pass to "xcrun --sdk", e.g. "iphoneos"'
        required: true
        type: string
        default: 'iphoneos'
      full_sdk_name:
        description: 'The full name of the output SDK, e.g. "iPhoneOS16.5"'
        required: true
        type: string

jobs:
  create:
    # https://github.com/actions/runner-images/blob/main/images/macos
    runs-on: macos-14
    # needed to be able to push to the repo
    permissions:
      contents: write

    steps:
      - name: Clone repo
        uses: actions/checkout@v4

      - name: Clone tbd
        uses: actions/checkout@v4
        with:
          repository: leptos-null/tbd
          ref: f0ae164d76b7bb802bbdf8ef758cc5637fac0fa1 # pinned, leptos/source-platform
          path: tbd

      - name: Build tbd
        run: |
          cd tbd
          make bin/tbd

      - name: Install blacktop/ipsw
        run: brew install blacktop/tap/ipsw

      - name: Install aria2
        run: brew install aria2

      - name: Patch SDK
        id: patch-sdk
        env:
          DEVELOPER_DIR: /Applications/Xcode_${{ inputs.xcode_version }}.app
        run: |
          # use absolute path since we `cd` later
          TBD_TOOL_PATH="$(pwd)/tbd/bin/tbd"
          SDK_OUTPUT_PATH="$(pwd)/${{ inputs.full_sdk_name }}.sdk"

          DSC_BASENAME="${{ inputs.dsc_basename }}"
          XC_SDK_NAME="${{ inputs.xcrun_sdk_name }}"

          cd tools/
          PLATFORM_PATH="$(xcrun --sdk "${XC_SDK_NAME}" --show-sdk-platform-path)"
          BASE_SDK_PATH="$(xcrun --sdk "${XC_SDK_NAME}" --show-sdk-path)"

          SYMBOLS_DIR="$(mktemp -d -t symbols)"
          IPSW_DOWNLOAD_DIR="$(mktemp -d -t ipsw)"
          IPSW_EXTRACTION_DIR="$(mktemp -d -t ipsw)"

          # `--dyld` is a convenient parameter for us, however it only supports iOS 16+
          IPSW_DOWNLOAD_URL="$(ipsw download ipsw --urls --version "${{ inputs.ipsw_version }}" --device "${{ inputs.ipsw_device }}")"
          echo "Downloading ${IPSW_DOWNLOAD_URL}"
          aria2c --dir "${IPSW_DOWNLOAD_DIR}" "${IPSW_DOWNLOAD_URL}"

          unzip -d "${IPSW_EXTRACTION_DIR}" "${IPSW_DOWNLOAD_DIR}"/*.ipsw "*.dmg"
          # remove to save space
          rm "${IPSW_DOWNLOAD_DIR}"/*.ipsw

          for DMG_FILE in "${IPSW_EXTRACTION_DIR}"/*.dmg; do
            # new mount root for each dmg so we don't have to
            # worry about how we iterate over the mount root
            DMG_MOUNT_ROOT="$(mktemp -d -t dmg)"
            # some of the dmgs can't be mounted - not sure why
            hdiutil attach "${DMG_FILE}" -mountroot "${DMG_MOUNT_ROOT}" || true
            for MOUNT_VOL in "${DMG_MOUNT_ROOT}"/*; do
              DYLD_CACHE_PATH="${MOUNT_VOL}/System/Library/Caches/com.apple.dyld/${DSC_BASENAME}"
              if [ -e "${DYLD_CACHE_PATH}" ]; then
                break 2 # break out of DMG_FILE loop
              fi
              # here becuase we didn't find the dyld shared cache (didn't break)
              unset DYLD_CACHE_PATH
              hdiutil detach "${MOUNT_VOL}" || true # this fails occasionally - just ignore
            done
          done

          echo "Found dyld_shared_cache: ${DYLD_CACHE_PATH}"

          if [ -z "${DYLD_CACHE_PATH}" ]; then
            echo "Failed to find ${DSC_BASENAME} in IPSW"
            exit 1
          fi

          ./create_patched_sdk_image.sh "${DYLD_CACHE_PATH}" "${SDK_OUTPUT_PATH}" "${BASE_SDK_PATH}" "${PLATFORM_PATH}" "${TBD_TOOL_PATH}"

          echo "sdk-path=${SDK_OUTPUT_PATH}" >> "${GITHUB_OUTPUT}"

      - name: Create branch
        run: |
          # thanks to https://github.com/actions/checkout/discussions/479
          git config user.name 'github-actions[bot]'
          git config user.email 'github-actions[bot]@users.noreply.github.com'

          SDK_NAME="${{ inputs.full_sdk_name }}"
          BRANCH_NAME="bot/${SDK_NAME}"

          git switch -c "${BRANCH_NAME}"
          git add "${{ steps.patch-sdk.outputs.sdk-path }}"

          git commit -m "Add ${SDK_NAME} SDK"
          git push --set-upstream origin "${BRANCH_NAME}"