#!/bin/bash

pkgconfig=/usr/bin/pkg-config
test -x $pkgconfig || {
cat > /dev/null
exit 0
}

[ $# -ge 1 ] || {
cat > /dev/null
exit 0
}

$pkgconfig --atleast-pkgconfig-version="0.24" || {
cat > /dev/null
exit 0
}

case $1 in
-P|--provides)
while read filename ; do
case "${filename}" in
*.pc)
# Query the dependencies of the package.
DIR="`dirname ${filename}`"
export PKG_CONFIG_PATH="$DIR:$DIR/../../share/pkgconfig"
$pkgconfig --print-provides "$filename" 2> /dev/null | while read n r v ; do
[ -n "$n" ] || continue
# We have a dependency. Make a note that we need the pkgconfig
# tool for this package.
echo -n "pkgconfig($n) "
[ -n "$r" ] && [ -n "$v" ] && echo -n "$r" "$v"
echo
done
;;
esac
done
;;
-R|--requires)
while read filename ; do
case "${filename}" in
*.pc)
i="`expr $i + 1`"
[ $i -eq 1 ] && echo "$pkgconfig"
DIR="`dirname ${filename}`"
export PKG_CONFIG_PATH="$DIR:$DIR/../../share/pkgconfig"
$pkgconfig --print-requires --print-requires-private "$filename" 2> /dev/null | while read n r v ; do
[ -n "$n" ] || continue
echo -n "pkgconfig($n) "
[ -n "$r" ] && [ -n "$v" ] && echo -n "$r" "$v"
echo
done
esac
done
;;
esac
exit 0