path: root/PKGBUILD

# Maintainer: Pedro A. López-Valencia <https://aur.archlinux.org/users/palopezv>

#######################################################################
# CAVEAT LECTOR: This PKGBUILD is highly opinionated. I give you
#                rope to hang yourself, but by default it only
#                enables the features I use.
#######################################################################

#######################################################################
#
#  Keeping this directory in a safe place preserves the 
#  git repo and the src dir for faster compilation if 
#  you want. You may delete the pkg dir after successfully 
#  creating a package.
#
#######################################################################

#######################################################################
# Assign "YES" to the variable you want enabled; empty or other value
# for NO.
#
# Where you read experimental, replace with foobar.
# =================================================
#
#######################################################################
LTO=             # Enable link-time optimization. Experimental.
ATHENA=          # Use Athena widgets. (83 1337, 83 001d sk00l).
GTK2=            # Leave empty to compile with gtk+ 3 support.
                 # No, gtk+ 2 ain't kool, dawg!
NOGTK3=          # Leave empty to compile with gtk+ 3 support.
GPM=             # Enable gpm support.
M17N=            # Enable m17n international support.
IMAGIGK=         # ImageMagick is worse than Adobe Flash.
CAIRO=           # Highly experimental.
XWIDGETS=        # Use GTK+ widgets pulled from webkit2gtk. Usable.
DOCS_HTML=       # Generate and install html documentation.
DOCS_PDF=        # Generate and install pdf documentation.
#######################################################################

#######################################################################
pkgname=emacs-git
pkgver=26.0.50.129323
pkgrel=1
pkgdesc="GNU Emacs. Master development branch."
arch=('i686' 'x86_64')
url="http://www.gnu.org/software/emacs/"
license=('GPL')
depends=('alsa-lib')
makedepends=('git')
#######################################################################

#######################################################################
if [[ $ATHENA = "YES" ]]; then  
  depends+=('libxaw');
fi

if [[ $GTK2 = "YES" ]]; then
  depends+=('gtk2');
else
  if [[ ! $NOGTK3 = "YES" ]]; then
    depends+=('gtk3'); 
  fi
fi

if [[ $GPM = "YES" ]]; then 
  depends+=('gpm');
fi

if [[ $M17N = "YES" ]]; then
  depends+=('m17n-lib');
fi

if [[ $IMAGICK = "YES" ]]; then 
  depends+=('imagemagick'); 
else 
  depends+=('libxpm' 'libjpeg-turbo' 'libtiff' \
            'giflib' 'libpng' 'librsvg');
fi

if [[ $CAIRO = "YES" ]]; then 
  depends+=('cairo'); 
fi

if [[ $XWIDGETS = "YES" ]]; then
  if [[ $GTK2 = "YES" ]] || [[ $ATHENA = "YES" ]]; then 
    echo "";
    echo "";
    echo "Xwidgets support *requires* gtk+3!!!";
    echo "";
    echo "";
    exit 1;
    else 
      depends+=('webkit2gtk'); 
  fi
fi

if [[ $DOCS_PDF = "YES" ]]; then 
  makedepends+=('texlive-core'); 
fi
#######################################################################

#######################################################################
conflicts=('emacs')
provides=('emacs')
#source=("$pkgname::git://git.savannah.gnu.org/emacs.git#branch=master")
#source=("$pkgname::git+https://git.savannah.gnu.org/git/emacs.git#branch=master")
source=("$pkgname::git+https://github.com/emacs-mirror/emacs.git")
md5sums=('SKIP')

pkgver() {
  cd "$srcdir/$pkgname"
  printf "%s.%s" \
    "$(grep AC_INIT configure.ac | \
    sed -e 's/^.\+\ \([0-9]\+\.[0-9]\+\.[0-9]\+\?\).\+$/\1/')" \
    "$(git rev-list --count HEAD)"
}


# There is no need to run autogen.sh after first checkout.
# Doing so, breaks incremental compilation.
prepare() {
  cd "$srcdir/$pkgname"

  [[ -x configure ]] || ( ./autogen.sh git && ./autogen.sh autoconf )
}

build() {
  cd "$srcdir/$pkgname"

  # Avoid hardening-wrapper (taken from emacs-pretest, thanks to Thomas Jost).
  export PATH=$(echo "$PATH" | sed 's!/usr/lib/hardening-wrapper/bin!!g')

  local _conf=(
    --prefix=/usr 
    --sysconfdir=/etc 
    --libexecdir=/usr/lib 
    --localstatedir=/var 
    --mandir=/usr/share/man 
    --with-gameuser=:games 
    --with-sound=alsa 
    --with-xft
    --with-modules
  )

#######################################################################

#######################################################################
if [[ $LTO = "YES" ]]; then 
  _conf+=('--enable-link-time-optimization'); 
fi

if [[ $ATHENA = "YES" ]]; then
  _conf+=('--with-x-toolkit=athena' '--without-gconf' '--without-gsettings');
fi

if [[ $GTK2 = "YES" ]]; then 
  _conf+=('--with-x-toolkit=gtk2' '--with-gconf' '--without-gsettings');
else
  _conf+=('--with-x-toolkit=gtk3' '--without-gconf' '--with-gsettings'); 
fi

if [[ ! $GPM = "YES" ]]; then 
  _conf+=('--without-gpm'); 
fi

if [[ ! $M17N = "YES" ]]; then 
  _conf+=('--without-m17n-flt'); 
fi

if [[ $IMAGICK = "YES" ]]; then 
  _conf+=('--without-xpm' '--without-jpeg' '--without-tiff' 
          '--without-gif' '--without-png' '--without-rsvg'); 
else
  _conf+=('--without-imagemagick');
fi

if [[ $CAIRO = "YES" ]]; then 
  _conf+=('--with-cairo'); 
fi

if [[ $XWIDGETS = "YES" ]]; then 
  _conf+=('--with-xwidgets'); 
fi
#######################################################################

#######################################################################

  ./configure "${_conf[@]}"

  # Using "make" instead of "make bootstrap" enables incremental
  # compiling. Less time recompiling. Yay! But you may 
  # need to use bootstrap sometimes to unbreak the build. 
  # Just add it to the command line.
  #
  # Please note that incremental compilation implies that you 
  # are reusing your src directory!
  #
  make

  # You may need to run this if 'loaddefs.el' files corrupt.
  #cd "$srcdir/$pkgname/lisp"
  #make autoloads
  #cd ../

  # Optional documentation formats.
  if [[ $DOCS_HTML = "YES" ]]; then 
    make html; 
  fi
  if [[ $DOCS_PDF = "YES" ]]; then 
    make pdf; 
  fi
}

package() {
  cd "$srcdir/$pkgname"

  make DESTDIR="$pkgdir/" install

  # Install optional documentation formats
  if [[ $DOCS_HTML = "YES" ]]; then make DESTDIR="$pkgdir/" install-html; fi
  if [[ $DOCS_PDF = "YES" ]]; then make DESTDIR="$pkgdir/" install-pdf; fi

  # remove conflict with ctags package
  mv "$pkgdir"/usr/bin/{ctags,ctags.emacs}
  mv "$pkgdir"/usr/share/man/man1/{ctags.1.gz,ctags.emacs.1.gz}

  # fix user/root permissions on usr/share files
  find "$pkgdir"/usr/share/emacs/ | xargs chown root:root

  # fix permssions on /var/games
  mkdir -p "$pkgdir"/var/games/emacs
  chmod 775 "$pkgdir"/var/games
  chmod 775 "$pkgdir"/var/games/emacs
  chown -R root:games "$pkgdir"/var/games
  
  # The logic used to install systemd's user service is partially broken
  # under Arch Linux model, because it adds $DESTDIR as prefix to the 
  # final Exec targets. The fix is to hack it with an axe.
  install -Dm644 etc/emacs.service "$pkgdir"/usr/lib/systemd/user/emacs.service
  sed -i -e 's#\(ExecStart\=\)#\1\/usr\/bin\/#' -e 's#\(ExecStop\=\)#\1\/usr\/bin\/#' \
    "$pkgdir"/usr/lib/systemd/user/emacs.service
}

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