install.sh

#!/bin/bash
set -e

ERROR_STR="\e[31m\e[1mError:\e[0m"
SUCCESS_STR="\e[32m\e[1mSuccess:\e[0m"
WARN_STR="\e[33m\e[1mWarn:\e[0m"
INFO_STR="\e[34m\e[1mInfo:\e[0m"
DIM_QUOTE="\e[2m'\e[22m"

options() {
    VALUE=$(python3 -m mccli.options "$@")
}

sudo -v
if [ $? -ne 0 ]; then
    echo -e "$ERROR_STR Sudo verification failed!"
    exit 1
fi

options version
echo -e "\e[1mInstallation script for MCCLI $VALUE"
echo

echo -e "$INFO_STR Checking of minecraft user exists"
getent passwd minecraft >/dev/null
if [ $? -ne 0 ]; then
    echo -e "$ERROR_STR You need to add a user called 'minecraft'"
    exit 1
fi
echo -e "$SUCCESS_STR Seems to exist!"
echo

echo -e "$INFO_STR Checking if the minecraft user has a home folder"
if [ ! -d /home/minecraft ]; then
    echo -e "$ERROR_STR The folder at /home/minecraft does not exist"
    exit 1
fi
echo -e "$SUCCESS_STR Seems to exist!"
echo

echo -e "$INFO_STR Checking if the minecraft user owns and has write permissions to their home folder"
info=($(stat -c "%U %a" /home/minecraft))
owner=${info[0]}
perm=${info[1]}
if [[ $owner != "minecraft" ]]; then
    echo -e "$ERROR_STR The minecraft user does not own '/home/minecraft'"
    exit 1
fi
if ((($perm & 0200) == 0)); then
    echo -e "$ERROR_STR The minecraft user does not have write permissions to /home/minecraft"
    exit 1
fi
echo -e "$SUCCESS_STR Permissions seems correct"

options paths.server_base
echo -e "$INFO_STR Creating directory $VALUE"
sudo mkdir -p $VALUE
echo -e "$INFO_STR Changing ownership of $VALUE to 'minecraft:minecraft'"
sudo chown minecraft:minecraft $VALUE
echo

echo -e "$INFO_STR Checking validity of sudoers file..."
sudo visudo -scf ./sudoers.conf
if [ $? -ne 0 ]; then
    echo -e "$ERROR_STR ./sudoers.conf is invalid!"
    echo -e "$WARN_STR Aborting. Check output"
    exit 1
fi
echo -e "$SUCCESS_STR Validity check passed!"
echo

echo -e "$INFO_STR Adding sudoers file to sudoers.d"
sudo cp ./sudoers.conf /etc/sudoers.d/10-mccli
echo -e "$INFO_STR Changing permissions of mccli's sudoers file to 644"
sudo chmod 644 /etc/sudoers.d/10-mccli
echo

echo -e "$INFO_STR Installing mccli with pip"
sudo pip3 install .
echo

echo -e "$INFO_STR Enabling lingering for minecraft account with systemd"
sudo loginctl enable-linger minecraft
echo

options service_template_name ""
OLD_VALUE=$VALUE
options paths.xdg_runtime_dir $(id -u minecraft)
echo -e "$INFO_STR Linking service template with systemd (as minecraft user)"
sudo -u minecraft XDG_RUNTIME_DIR=$VALUE systemctl link --user $PWD/$OLD_VALUE
echo -e "$INFO_STR Reloading daemons (as minecraft user)"
sudo -u minecraft XDG_RUNTIME_DIR=$VALUE systemctl daemon-reload --user
echo

getent group minecraft >/dev/null
if [ $? -ne 0 ]; then
    echo -e "$WARN_STR Make sure to add yourself to the ${DIM_QUOTE}minecraft$DIM_QUOTE group to be able to use mccli without entering sudo password"
    echo
    echo -e "$INFO_STR Most likely you are able to add yourself to the minecraft group by typing: ${DIM_QUOTE}sudo usermod -aG minecraft $USER$DIM_QUOTE"
    echo
fi

echo -e "$SUCCESS_STR MCCLI successfully installed!"