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#!/bin/sh
set -e
catdir=/var/cache/man
ensure_catdir () {
if [ ! -d $catdir ]; then
# Make sure the cat directory exists.
install -d -o man -g man -m 0755 $catdir
fi
}
run_mandb () {
if [ ! -e /var/lib/man-db/auto-update ]; then
echo "Not building database; man-db/auto-update is not 'true'." >&2
return 0
fi
# shellcheck disable=SC3043
local message="$1"
shift
[ "$message" ] && echo "$message" >&2
# start-stop-daemon isn't available when running from debootstrap.
if command -v setpriv >/dev/null; then
setpriv --reuid man --regid man --init-groups -- /usr/bin/mandb "$@" || true
else
# runuser isn't ideal here, because it starts a PAM session.
# However, setpriv is only available on Linux.
runuser -u man -- /usr/bin/mandb "$@" || true
fi
}
if [ "$1" = triggered ]; then
ensure_catdir
# We don't print a status message here, as dpkg already said
# "Processing triggers for man-db ...".
run_mandb "" -pq
exit 0
fi
# shellcheck disable=SC1091
. /usr/share/debconf/confmodule
db_version 2.0
[ "$1" = configure ] || exit 0
maybesetuid='man mandb'
db_get man-db/install-setuid
if [ "$RET" = true ]; then
# man and mandb are to be installed setuid man.
owner=man:man
mode=6755
else
# man and mandb are not to be installed setuid.
owner=root:root
mode=0755
fi
for x in $maybesetuid; do
# No statoverrides available or none exist for us ...
if ! dpkg-statoverride --list "/usr/bin/$x" >/dev/null; then
chown $owner "/usr/bin/$x" || true
chmod $mode "/usr/bin/$x"
fi
done
ensure_catdir
# debconf forms the interface used to suppress man-db updates during
# automatic package builds (see https://bugs.debian.org/554914), but we
# cache that value in the file system to avoid having to use debconf when
# processing triggers.
db_get man-db/auto-update
if [ "$RET" = true ]; then
touch /var/lib/man-db/auto-update
else
rm -f /var/lib/man-db/auto-update
fi
build_db=0
if [ ! -f $catdir/index.db ]; then
# Build the database from scratch on fresh installs.
build_db=1
fi
if [ $build_db -eq 1 ]; then
# Chances are we're being run from debootstrap, which will have problems
# if mandb runs backgrounded for too long (bug #100616).
run_mandb "Building database of manual pages ..." -cq
else
# Otherwise, just update the database in the foreground. It's unlikely
# to take very long, and configuration needs to cover everything that
# happens when we're triggered.
run_mandb "Updating database of manual pages ..." -pq
fi
#DEBHELPER#
exit 0
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