#!/bin/sh
#
# emacsen install script for the Debian GNU/Linux
# dictionaries-common package
#
# Written by Rafael Laboissiere <rafael@debian.org> and
# Agustin Martin <agmartin@debian.org>
#
# Some things taken from Dirk Eddelbuettel script for the octave package.
# lpath.el trick is stolen from Davide Salvetti's auctex package
# --------------------------------------------------------------

set -e

# Canadian spelling ;-)
flavour=$1

package=dictionaries-common
files_base="debian-ispell.el"
files="$files_base ispell.el flyspell.el"
source=/usr/share/dictionaries-common/site-elisp
destination=/usr/share/${flavour}/site-lisp/${package}

case "$flavour" in
    xemacs*)
	flags="-no-site-file"
	;;
    emacs19|emacs20|emacs21|emacs22|emacs23|emacs-snapshot*)
	# Do not byte-compile anything for above emacsen flavours
	echo "install/${package}: Skipping byte-compilation for $flavour"
	exit 0
	;;
    emacs*)
	flags="--no-site-file"
	emacs_version=$($flavour -no-site-file --version | head -n 1 | sed 's/^.* Emacs //' )
	if dpkg --compare-versions ${emacs_version} ge "24.5"; then
	    files=${files_base}
	fi
	;;
    *)
	echo install/${package}: Ignoring emacsen flavour [${flavour}]
	exit 0
	;;
esac

if [ -e "${destination}/done" ]; then
    echo "install/${package}: Already byte-compiled for ${flavour}. Skipping ..."
else
    echo install/${package}: Byte-compiling for emacsen flavour ${flavour}

    # Make sure destination directory is available
    install -m 0755 -d ${destination}

    # Make sure current dir is in the load path
    cat << EOF > ${destination}/path.el
(setq load-path (cons "." load-path) byte-compile-warnings nil)
EOF

    flags="${flags} -q -batch -l path.el -f batch-byte-compile"
    ( # Go to the .elc dir, set sources symlinks, byte compile files and remove temp .el files from the .elc dir
	cd ${destination}
	touch .nosearch
	for i in $files; do
	    ln -sf $source/$i
	done
	${flavour} ${flags} ${files}
	rm path.el
	touch done
    )
fi

exit 0;