#!/bin/sh
set -e

if [ -z "$1" ]; then
    echo "Use: $0 page-name (with no section suffix)"
    exit 1
fi

# make sure the rules have been regenerated (in case man/update-man-rules was just run)
ninja -C "/tmp/systemd-247/build" version.h

page="$(echo "$1" | sed 's/\./\\./')"
target=$(ninja -C "/tmp/systemd-247/build" -t query man/man | grep -E -m1 "man/$page\.[0-9]$" | awk '{print $2}')
if [ -z "$target" ]; then
    echo "Cannot find page $1"
    exit 1
fi
ninja -C "/tmp/systemd-247/build" "$target"

fullname="/tmp/systemd-247/build/$target"
redirect="$(sed -n -r '1 s|^\.so man[0-9]/(.*)|\1|p' "$fullname")"
if [ -n "$redirect" ]; then
    ninja -C "/tmp/systemd-247/build" "man/$redirect"

    fullname="/tmp/systemd-247/build/man/$redirect"
fi

exec man "$fullname"
