CoppeliaSim package for Arch Linux

PKGBUILD

# Maintainer: Musee Ullah <lae@lae.is>

pkgname=coppeliasim-bin
_name=coppeliasim
pkgver=4.2.0
_pkgver=${pkgver//./_}
pkgrel=1
pkgdesc="CoppeliaSim, formerly known as V-REP, is the Swiss army knife among robot simulators."
arch=("x86_64")
url="http://www.coppeliarobotics.com/"
license=("GPL" "LGPL")
optdepends=('icu60: BlueZero api dependency')
provides=('vrep' 'coppeliasim')
source=("${_name}-${pkgver}.tar.xz::http://www.coppeliarobotics.com/files/CoppeliaSim_Edu_V${_pkgver}_Ubuntu20_04.tar.xz")
noextract=("${source[0]%%::*}")
sha256sums=('75f059c529cbb2e40733ca3fe3e1d4350747da87dab40df555e3d57d5ed8d431')

package() {
    install -d "${pkgdir}/usr/"{bin,share/doc}
    install -d "${pkgdir}/opt/${_name}" "${pkgdir}/usr/share/doc/${_name}"

    ln -s "/opt/${_name}/coppeliaSim.sh" "${pkgdir}/usr/bin/${_name}"

    # Extract everything but documentation into /opt, and docs into
    # /usr/share/doc, and ensure they're owned by root in the fakeroot env
    helpFiles="CoppeliaSim_Edu_V${_pkgver}_Ubuntu20_04/helpFiles"
    bsdtar -C "${pkgdir}/opt/${_name}/" --strip-components=1 \
        --exclude="${helpFiles}" --uid 0 --gid 0 \
        -xvJf "${srcdir}/${noextract[0]}"
    bsdtar -C "${pkgdir}/usr/share/doc/${_name}/" --strip-components=2 \
        --uid 0 --gid 0 \
        -xvJf "${srcdir}/${noextract[0]}" "${helpFiles}"

    cd "${pkgdir}/opt/${_name}"
    # Create an empty placeholder for this file so that pacman is aware of it.
    touch updtChck.dat

    # Executable application code should *not* be writeable by non-root,
    # but this is a silly application so I have no good way of "fixing" this.
    #find ./ -type d -print0 | xargs -0 chmod go-w
    #grep -ILZ '' * | xargs -0 chmod go-w
    #grep -rIlZ '' */ | xargs -0 chmod -x
    #find ./ -maxdepth 1 -type f -print0 | xargs -0 chmod go-w
    #find ./ -iname "*.lua" -print0 | xargs -0 chmod 644
    #find ./ -mindepth 2 -type f -print0 | xargs -0 chmod -x

    cd "${pkgdir}/usr/share/doc/${_name}"
    # Remove broken symlinks (they symlink to files under /home/marc...)
    rm en/simROS2.htm index/simROS2.json

    # Documentation shouldn't be executable at all or writable by non-root.
    find ./ -print0 | xargs -0 chmod go-w
    find ./ -type f -print0 | xargs -0 chmod -x
}