ngtcp2.sh

#!/usr/bin/env bash

# Copyright (C) Viktor Szakats. See LICENSE.md
# SPDX-License-Identifier: MIT

# shellcheck disable=SC3040,SC2039
set -o xtrace -o errexit -o nounset; [ -n "${BASH:-}${ZSH_NAME:-}" ] && set -o pipefail

export _NAM _VER _OUT _BAS _DST

_NAM="$(basename "$0" | cut -f 1 -d '.')"
_VER="$1"

(
  cd "${_NAM}" || exit 0

  rm -r -f "${_PKGDIRS:?}" "${_BLDDIR:?}"

  CPPFLAGS=''
  LDFLAGS=''
  LIBS=''
  options=''

  if [[ "${_CONFIG}" != *'debug'* ]]; then
    CPPFLAGS+=' -DNDEBUG'
  fi

  if [ "${_OS}" = 'win' ]; then
    # Avoid deprecation warning triggered by mingw-w64 inside clang 19
    CPPFLAGS+=' -D_CLANG_DISABLE_CRT_DEPRECATION_WARNINGS'
  fi

  if [ "${_OPENSSL}" = 'boringssl' ] || [ "${_OPENSSL}" = 'awslc' ]; then
    options+=' -DENABLE_OPENSSL=OFF'
    options+=' -DENABLE_BORINGSSL=ON'
    options+=" -DBORINGSSL_INCLUDE_DIR=${_TOP}/${_OPENSSL}/${_PP}/include"
    options+=" -DBORINGSSL_LIBRARIES=${_TOP}/${_OPENSSL}/${_PP}/lib/libssl.a;${_TOP}/${_OPENSSL}/${_PP}/lib/libcrypto.a;-lpthread"; [ "${_OS}" = 'win' ] && options="${options};-lws2_32"
    CPPFLAGS+=' -DNOCRYPT'
  else
    options+=' -DENABLE_OPENSSL=ON'
    options+=" -DOPENSSL_ROOT_DIR=../${_OPENSSL}/${_PP}"
    # FIXME: This is not enough for picky ld linker (with gcc)
    if [ -n "${_ZLIB}" ] && [ -d "../${_ZLIB}/${_PP}" ]; then  # required by OpenSSL built with zlib
      LDFLAGS+=" -L${_TOP}/${_ZLIB}/${_PP}/lib"
      LIBS+=' -lz'
    fi
  fi

  # shellcheck disable=SC2086
  cmake -B "${_BLDDIR}" ${_CMAKE_GLOBAL} ${options} \
    -DENABLE_LIB_ONLY=ON \
    -DENABLE_STATIC_LIB=ON \
    -DENABLE_SHARED_LIB=OFF \
    -DBUILD_TESTING=OFF \
    -DCMAKE_C_FLAGS="${_CFLAGS_GLOBAL_CMAKE} ${_CFLAGS_GLOBAL} ${_CPPFLAGS_GLOBAL} ${CPPFLAGS} ${_LDFLAGS_GLOBAL} ${LDFLAGS} ${LIBS}"

  cmake --build "${_BLDDIR}"
  cmake --install "${_BLDDIR}" --prefix "${_PPS}"

  # Delete .pc files
  rm -r -f "${_PPS}"/lib/pkgconfig

  # Make steps for determinism

  readonly _ref='ChangeLog'

  # shellcheck disable=SC2086
  "${_STRIP_LIB}" ${_STRIPFLAGS_LIB} "${_PPS}"/lib/*.a

  touch -c -r "${_ref}" "${_PPS}"/include/ngtcp2/*.h
  touch -c -r "${_ref}" "${_PPS}"/lib/*.a

  # Create package

  _OUT="${_NAM}-${_VER}${_REVSUFFIX}${_PKGSUFFIX}"
  _BAS="${_NAM}-${_VER}${_PKGSUFFIX}"
  _DST="$(pwd)/_pkg"; rm -r -f "${_DST}"

  mkdir -p "${_DST}"/include/ngtcp2
  mkdir -p "${_DST}"/lib

  cp -f -p "${_PPS}"/include/ngtcp2/*.h "${_DST}"/include/ngtcp2/
  cp -f -p "${_PPS}"/lib/*.a            "${_DST}"/lib/
  cp -f -p ChangeLog                    "${_DST}"/ChangeLog.txt
  cp -f -p AUTHORS                      "${_DST}"/AUTHORS.txt
  cp -f -p COPYING                      "${_DST}"/COPYING.txt
  cp -f -p README.rst                   "${_DST}"/

  ../_pkg.sh "$(pwd)/${_ref}"
)