PKGBUILD_examples.txt

## Examples for reuse in pkgbuilds

# Fix pkgver with forbidden simbols
_pkgver=3.2.01-1
pkgver=${_pkgver//-/.}

# All architectures
arch=(x86_64 i686 i486 pentium4 arm armv6h armv7h aarch64)

# Common cd
  cd "${srcdir}/${pkgname}-${pkgver}"
  cd "${srcdir}/${pkgname}-${pkgver}/build"

  cd "${srcdir}/${pkgname%-git}"
  cd "${srcdir}/${pkgname%-git}/build"



pkgver() {

}

# Using the most recent annotated tag reachable from the last commit: 
  git describe --long | sed 's/\([^-]*-g\)/r\1/;s/-/./g'

# Using the most recent un-annotated tag reachable from the last commit: 
  git describe --long --tags | sed 's/\([^-]*-g\)/r\1/;s/-/./g'

# cutting off 'v' prefix that presents in the git tag
  git describe --long --tags | sed 's/^v//;s/\([^-]*-g\)/r\1/;s/-/./g'

# cutting off 'foo-' prefix that presents in the git tag
  git describe --long --tags | sed 's/^foo-//;s/\([^-]*-g\)/r\1/;s/-/./g'

# Git without tags
  printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"

# Both methods can also be combined, to support repositories that start without a tag but get tagged later on (uses a bashism): 
  ( set -o pipefail
    git describe --long 2>/dev/null | sed 's/\([^-]*-g\)/r\1/;s/-/./g' ||
    printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
  )

# Bazaar
	printf "r%s" "$(bzr revno)"

# Mercurial
	printf "r%s.%s" "$(hg identify -n)" "$(hg identify -i)"

# Subversion
	printf "r%s" "$(svnversion | tr -d 'A-z')"


# Git fixed commit from Arch pkgbuilds

  git describe --tags | sed 's/^v//;s/-/+/g'


# Exclude a tag (i.e. continuous, nightly) with

  --exclude continuous

  --exclude nightly


# Git submodules configuration

  git submodule init
  git config submodule.PATH/NAME.url "${srcdir}/NAME"
  git submodule update


# Extract .deb to pkgdir
  bsdtar -xf ${srcdir}/data.tar.xz -C ${pkgdir}/


# Build with Cmake

  [[ -d build ]] || mkdir build

  cmake .. -Wno-dev \
    -DCMAKE_BUILD_TYPE=None \
    -DCMAKE_INSTALL_PREFIX=/usr
  make

  make DESTDIR="${pkgdir}" install


# Build with Qmake

  qmake-qt5 .pro
  make
  make install INSTALL_ROOT="${pkgdir}/"


# Build with autotools

  autoreconf -f -i
  ./configure --prefix=usr
  make
  make DESTDIR="${pkgdir}" install



# Export a different compiler

  export CC=/usr/bin/clang CXX=/usr/bin/clang++

  export CC=/usr/bin/gcc-11 CXX=/usr/bin/g++-11

  export CC=/usr/bin/gcc-10 CXX=/usr/bin/g++-10

  export CC=/usr/bin/gcc-9 CXX=/usr/bin/g++-9

  export CC=/usr/bin/gcc-8 CXX=/usr/bin/g++-8



package() {

  install -D LICENSE -t "${pkgdir}/usr/share/licenses/${pkgname}"
  install -D README.MD -t "${pkgdir}/usr/share/doc/${pkgname}"
  install -D doc/man/*.1 -t "${pkgdir}"/usr/share/man/man1/
  ln -s /opt/${pkgname}/${pkgname} ${pkgdir}/usr/bin/${pkgname}
}

# Python version variable
  _pyver=$(python -c "from sys import version_info; print(\"%d.%d\" % (version_info[0],version_info[1]))")