#
# DockerBashOOP - Implementation of BashOOP for Docker.
# Copyright (C) 2022  Ad5001 <mail@ad5001.eu>
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser 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/>.
#

# This class contains various utils required for Docker.

# Returns the base command for docker, with it's executable and sudo if necessary.
# Signature: () -> string
Utils.DockerCommand() { 
    if [ $(Docker.RequiresSudo) == true ]; then echo -n "sudo "; fi
    echo "$(Docker.Executable)"
}

# Checks if the user has permission to use docker.
# Signature: () -> bool
Utils.hasPermission() {
    $(Utils.DockerCommand) ps 2>&1 | grep -q "permission denied"
    # Check status of last command. If permission denied is found, then we do not have permission to use docker.
    if [ $? ]; then echo false; else echo true; fi
}