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# Maintainer: Gustavo Alvarez <sl1pkn07@gmail.com>

pkgbase=libcutensor
pkgname=(
  'libcutensor'
  'libcutensor-common'
  'libcutensor-cuda11.0'
  'libcutensor-cuda11.8'
)
pkgver=2.0.0.7
pkgrel=1
pkgdesc="GPU-accelerated tensor linear algebra library"
arch=('x86_64')
url='https://developer.nvidia.com/cutensor'
license=('custom:NVIDIA')
source=("libcutensor-linux-x86_64-${pkgver}.tar.xz::https://developer.download.nvidia.com/compute/cutensor/redist/libcutensor/linux-x86_64/libcutensor-linux-x86_64-${pkgver}-archive.tar.xz")
sha256sums=('df6338aed18e5b6ae0c49521053d1606d2a41e187d7f5eccf9180af6bbc4ef68')

_create_links() {
  # create soname links
  find "${pkgdir}" -type f -name '*.so*' -print0 | while read -d $'\0' _lib; do
    _soname=$(dirname "${_lib}")/$(readelf -d "${_lib}" | grep -Po 'SONAME.*: \[\K[^]]*' || true)
    _base=$(echo ${_soname} | sed -r 's/(.*)\.so.*/\1.so/')
    [[ -e "${_soname}" ]] || ln -s $(basename "${_lib}") "${_soname}"
    [[ -e "${_base}" ]] || ln -s $(basename "${_soname}") "${_base}"
  done
}

# build() {
# exit
# }

package_libcutensor() {
  depends=(
    'gcc-libs'
    'cuda'
    "libcutensor-common=${pkgver}"
  )
  conflicts=('libcutensor-cuda12')
  cd "libcutensor-linux-x86_64-${pkgver}-archive"
  install -Dm644 lib/12/libcutensor_static.a "${pkgdir}/opt/cuda/targets/x86_64-linux/lib/libcutensor_static.a"
  install -Dm644 lib/12/libcutensor_static.a "${pkgdir}/opt/cuda/targets/x86_64-linux/lib/libcutensorMg_static.a"
  install -Dm755 "lib/12/libcutensor.so.${pkgver:0:5}" "${pkgdir}/opt/cuda/targets/x86_64-linux/lib/libcutensor.so.${pkgver:0:5}"
  install -Dm755 "lib/12/libcutensorMg.so.${pkgver:0:5}" "${pkgdir}/opt/cuda/targets/x86_64-linux/lib/libcutensorMg.so.${pkgver:0:5}"

  _create_links

  install -d "${pkgdir}/usr/share/licenses/${pkgname}"
  ln -s /usr/share/licenses/libcutensor-common/license.txt "${pkgdir}/usr/share/licenses/${pkgname}/license.txt"
}

package_libcutensor-cuda11.0() {
  pkgdesc+=" (CUDA 11.0)"
  depends=(
    'gcc-libs'
    'cuda-11.0'
    "libcutensor-common=${pkgver}"
  )

  cd "libcutensor-linux-x86_64-${pkgver}-archive"
  install -Dm644 lib/11.0/libcutensor_static.a "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensor_static.a"
  install -Dm644 lib/11.0/libcutensorMg_static.a "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensorMg_static.a"
  install -Dm755 "lib/11.0/libcutensor.so.${pkgver:0:5}" "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensor.so.${pkgver:0:5}"
  install -Dm755 "lib/11.0/libcutensorMg.so.${pkgver:0:5}" "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensorMg.so.${pkgver:0:5}"

  _create_links

  install -d "${pkgdir}/usr/share/licenses/${pkgname}"
  ln -s /usr/share/licenses/libcutensor-common/license.txt "${pkgdir}/usr/share/licenses/${pkgname}/license.txt"
}

package_libcutensor-cuda11.8() {
  pkgdesc+=" (CUDA 11.8)"
  depends=(
    'gcc-libs'
    'cuda-11.8'
    "libcutensor-common=${pkgver}"
  )

  cd "libcutensor-linux-x86_64-${pkgver}-archive"
  install -Dm644 lib/11/libcutensor_static.a "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensor_static.a"
  install -Dm644 lib/11/libcutensorMg_static.a "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensorMg_static.a"
  install -Dm755 "lib/11/libcutensor.so.${pkgver:0:5}" "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensor.so.${pkgver:0:5}"
  install -Dm755 "lib/11/libcutensorMg.so.${pkgver:0:5}" "${pkgdir}/opt/cuda-11.0/targets/x86_64-linux/lib/libcutensorMg.so.${pkgver:0:5}"

  _create_links

  install -d "${pkgdir}/usr/share/licenses/${pkgname}"
  ln -s /usr/share/licenses/libcutensor-common/license.txt "${pkgdir}/usr/share/licenses/${pkgname}/license.txt"
}

package_libcutensor-common() {
  pkgdesc+=" (Common bits)"
  arch=('any')

  cd "libcutensor-linux-x86_64-${pkgver}-archive"
  for i in $(find include -type f); do install -Dm644 ${i} "${pkgdir}/usr/${i}"; done

  install -Dm644 LICENSE  "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
}