PKGBUILD-generic-git-submodules

# This file is part of BlackArch Linux ( https://www.blackarch.org/ ).
# See COPYING for license details.

pkgname=NAME
pkgver=VERSION
pkgrel=1
submodule=SUBMODULE
pkgdesc='Short description without using the package name itself.'
arch=('any' OR 'x86_64' 'aarch64')
groups=('blackarch' MORE_BLACKARCH_GROUPS_HERE)
url='URL pointing to download section of package'
license=('WHATEVER' OR 'custom:unknown')
depends=()
makedepends=('git')
source=("git+https://github.com/foo/$pkgname.git"
        "git+https://github.com/bar/$submodule.git")
sha512sums=('SKIP'
            'SKIP')

pkgver() {
  cd $pkgname

  # use, if no version string provided neither in sources nor in git describe:
  echo $(git rev-list --count HEAD).$(git rev-parse --short HEAD)

  # if tag exists, use this
  git describe --long --tags | sed 's/\([^-]*-g\)/r\1/;s/-/./g'
}

prepare(){
  cd $pkgname

  git submodule init
  git config submodule.$pkgname/include/$submodule.url "$srcdir/$submodule"
  git -c protocol.file.allow=always submodule update

  ...
}

build() {
  cd $pkgname

  ...
}

package() {
  cd $pkgname

  ...
}