#!/bin/sh
set -e

pkg=vim
variant=basic
mandir=/usr/share/man

# two things to do:
# 1) add /usr/bin/vim.variant as alternative for /usr/bin/vim. Priority are
# chosen accordingly to the principle: ``more features, higher priority''
# 2) add /usr/bin/gvim as an alternative for gnome-text-editor for variants
# built with gnome support. Same principle for the priority above, with the
# additional constraint that priority should not be higher than gedit's

add_gnome_alternative () {
if [ -f /usr/bin/gvim ]; then
update-alternatives --install /usr/bin/gnome-text-editor \
gnome-text-editor /usr/bin/vim.$variant $1 \
--slave $mandir/man1/gnome-text-editor.1.gz gnome-text-editor.1.gz \
$mandir/man1/vim.1.gz
fi
}

add_variant_alternative () {
if [ "$variant" != "tiny" ]; then
update-alternatives --install /usr/bin/vim vim /usr/bin/vim.$variant $1
update-alternatives --install /usr/bin/vimdiff vimdiff /usr/bin/vim.$variant $1
update-alternatives --install /usr/bin/rvim rvim /usr/bin/vim.$variant $1
fi
update-alternatives --install /usr/bin/rview rview /usr/bin/vim.$variant $1
# Since other packages provide these commands, we'll setup alternatives for
# their manpages, too.
for i in vi view ex editor ; do
update-alternatives \
--install /usr/bin/$i $i /usr/bin/vim.$variant $1 \
--slave $mandir/fr/man1/$i.1.gz $i.fr.1.gz $mandir/fr/man1/vim.1.gz \
--slave $mandir/it/man1/$i.1.gz $i.it.1.gz $mandir/it/man1/vim.1.gz \
--slave $mandir/pl/man1/$i.1.gz $i.pl.1.gz $mandir/pl/man1/vim.1.gz \
--slave $mandir/ru/man1/$i.1.gz $i.ru.1.gz $mandir/ru/man1/vim.1.gz \
--slave $mandir/ja/man1/$i.1.gz $i.ja.1.gz $mandir/ja/man1/vim.1.gz \
--slave $mandir/man1/$i.1.gz $i.1.gz \
$mandir/man1/vim.1.gz
done
case "$variant" in
gtk|gnome|athena) # gui enabled variants
add_gui_variant_alternative $1
;;
esac
}

add_gui_variant_alternative () {
for i in gvim gview rgview rgvim evim eview gvimdiff ; do
update-alternatives --install /usr/bin/$i $i /usr/bin/vim.$variant $1
done
}

case "$pkg" in
vim-tiny)
add_variant_alternative 10
;;
vim)
add_variant_alternative 30
;;
vim-nox)
add_variant_alternative 40
;;
vim-gtk|vim-athena)
add_variant_alternative 50
;;
vim-gnome) # gnome enabled variant
add_variant_alternative 60
add_gnome_alternative 45
;;
esac



exit 0