| Current File : //usr/sbin/mk-runscript |
#!/bin/sh
# runscript --- manage runscripts that are not part of debian package
# Copyright (C) 2016 Dmitry Bogatov <KAction@gnu.org>
# Author: Dmitry Bogatov <KAction@gnu.org>
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
set -eu
COLOR_RED=$(tput setaf 1)
COLOR_YELLOW=$(tput setaf 3)
COLOR_BLUE=$(tput setaf 4)
COLOR_BOLD=$(tput bold)
COLOR_RESET=$(tput sgr0)
check_svdir () {
if [ -z "${SVDIR:-}" ] ; then
if [ $(id -u) -eq 0 ] ; then
SVDIR=/etc/service
else
SVDIR=$HOME/.service
fi
info "SVDIR is not set. Using default value $SVDIR".
fi
[ -d "$SVDIR" ] || error "SVDIR=$SVDIR: no such directory"
[ -w "$SVDIR" ] || error "SVDIR=$SVDIR: permission denied"
}
info () { echo "${COLOR_BOLD}${COLOR_BLUE}info:${COLOR_RESET}" "$@"; }
error() { echo "${COLOR_BOLD}${COLOR_RED}error:${COLOR_RESET}" "$@"; exit 1; }
help () {
cat <<'EOF'
Usage: runscript [--add|--remove] TYPE [ARGS]
Add or remove runscript of specified type into SVDIR. Currently
supported types are:
* unprivileged: create runscript, that creates runit instance,
that supervise services in non-root user's private ~/.service
directory. The only argument is username.
EOF
}
case "${1:--invalid}" in
--add)
action=add
;;
--remove)
action=remove
;;
--help)
help
exit 0
;;
*)
help
exit 1
;;
esac
shift
check_svdir
[ -n "${1:-}" ] || error "runscript type is not specified. Try --help."
case "$1" in
unprivileged)
DOTS=$(seq 40|paste -s|sed 's/././g')
CFG_USER=${2:-}
[ -n "$CFG_USER" ] || error "missing argument USERNAME"
if ! getent passwd "$CFG_USER" >/dev/null ; then
error "unknown user \`$CFG_USER'"
fi
CFG_HOME=$(getent passwd "$CFG_USER"|cut -d: -f6)
SV_NAME="unprivileged.$CFG_USER"
case "$action" in
add)
mkdir -p "$SVDIR/$SV_NAME/control"
cat <<EOF > "$SVDIR/$SV_NAME/run"
#!/bin/sh
exec 2>&1
export USER='$CFG_USER'
export HOME='$CFG_HOME'
exec chpst -u '$CFG_USER' runsvdir -P '$CFG_HOME/.service' '$DOTS'
EOF
cat << EOF > "$SVDIR/$SV_NAME/control/t"
#!/bin/sh
exec sv -v hup .
EOF
chmod +x "$SVDIR/$SV_NAME/run"
chmod +x "$SVDIR/$SV_NAME/control/t"
;;
remove)
rm -r "${SVDIR:?}/$SV_NAME"
;;
esac
;;
esac