holo-run-scripts

#!/usr/bin/env bash
#
# Copyright 2015 Stefan Majewsky <majewsky@gmx.net>
#
# This file is part of Holo.
#
# Holo 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.
#
# Holo 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
# Holo. If not, see <http://www.gnu.org/licenses/>.
#

if [ "$HOLO_API_VERSION" != 3 ]; then
    echo "!! holo-run-scripts plugin called with unknown HOLO_API_VERSION $HOLO_API_VERSION" >&2
    exit 1
fi

case "$1" in
    info)
        echo MIN_API_VERSION=3
        echo MAX_API_VERSION=3
        ;;
    scan)
        # list executables in $HOLO_RESOURCE_DIR
        set -e
        cd "$HOLO_RESOURCE_DIR"
        find -mindepth 1 -maxdepth 1 \( -type f -o -type l \) -executable \
            | cut -d/ -f2 | sort | while read FILENAME; do
            echo "ENTITY: script:$FILENAME"
            echo "ACTION: Executing"
            echo "found at: $HOLO_RESOURCE_DIR/$FILENAME"
            echo "SOURCE: $HOLO_RESOURCE_DIR/$FILENAME"
        done
        ;;
    diff)
        # diffs are not applicable to scripts, so always return an empty diff
        ;;
    apply|force-apply)
        ENTITY_ID="$2"
        FILENAME="${ENTITY_ID:7}" # strip "script:" prefix
        SCRIPT="$(readlink -f "$HOLO_RESOURCE_DIR/$FILENAME")"
        cd "$HOLO_ROOT_DIR"
        exec "$SCRIPT"
        ;;
    *)
        echo "!! holo-run-scripts plugin called with unknown command: $@" >&2
        exit 1
        ;;
esac