freedombone-utils-installprogress

#!/bin/bash
#  _____               _           _
# |   __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
# |   __|  _| -_| -_| . | . |     | . | . |   | -_|
# |__|  |_| |___|___|___|___|_|_|_|___|___|_|_|___|
#
#                              Freedom in the Cloud
#
# Keep track of install progress
#
# License
# =======
#
# Copyright (C) 2018-2019 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

function app_install_progress_max {
    app_filename="$1"

    if [ ! -f "$app_filename" ]; then
        echo '0'
        return
    fi
    app_install_lines_temp=$(grep -c 'increment_app_install_progress' "$app_filename")
    app_install_lines=$((app_install_lines_temp + 1))
    echo "$app_install_lines"
}

function clear_app_install_progress {
    if [ -f /root/.app_install_counter ]; then
        rm /root/.app_install_counter
    fi

    # copy the app icon
    local_hostname=$(grep 'host-name' /etc/avahi/avahi-daemon.conf | awk -F '=' '{print $2}').local
    webadmin_install_dir="/var/www/${local_hostname}/htdocs/admin"
    if [ ! -f "$webadmin_install_dir/images/installing_app.png" ]; then
        cp "/root/${PROJECT_NAME}/img/android-app/${app_name}.png" "$webadmin_install_dir/images/installing_app.png"
        chown www-data:www-data "$webadmin_install_dir/images/installing_app.png"
    fi
}

function increment_install_progress {
    if [[ "$USER" != 'root' ]]; then
        return
    fi

    if grep -q 'install_final' "$COMPLETION_FILE"; then
        return
    fi

    install_comment=$"1"

    if [ -f /root/.install_counter ]; then
        install_counter=$(cat /root/.install_counter)
    else
        install_counter=0
    fi

    if [ "$install_comment" ]; then
        echo "$install_comment" > /root/.install_comment
    fi

    install_counter=$((install_counter + 1))
    echo -n "$install_counter" > /root/.install_counter
}

function update_app_install_progress_bar {
    if [ ! "${app_name}" ]; then
        return
    fi

    local_hostname=$(grep 'host-name' /etc/avahi/avahi-daemon.conf | awk -F '=' '{print $2}').local

    webadmin_install_dir="/var/www/${local_hostname}/htdocs/admin"

    app_filename="/usr/share/${PROJECT_NAME}/apps/${PROJECT_NAME}-app-${app_name}"
    if [ ! -f "$app_filename" ]; then
        return
    fi
    if [ ! -f /root/.app_install_counter ]; then
        echo -n '1' > /root/.app_install_counter
    fi
    max_counter=$(app_install_progress_max "$app_filename")
    installing_page="$webadmin_install_dir/app_installing_progress.html"
    progress_counter=$(cat /root/.app_install_counter)
    progress_percent=$((progress_counter * 100 / max_counter))
    if [ $progress_percent -gt 100 ]; then
        progress_percent=100
    fi

    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${progress_percent}%\">${progress_percent}%</div>|g" "$installing_page"
    if ! grep -q 'w3-container w3-blue' "$webadmin_install_dir/index.html"; then
        cp "$webadmin_install_dir/index.html" "$webadmin_install_dir/index_app_installing.html"
        cp "$installing_page" "$webadmin_install_dir/index.html"
    fi
    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${progress_percent}%\">${progress_percent}%</div>|g" "$webadmin_install_dir/index.html"
}

function increment_app_install_progress {
    install_comment=$"1"

    if [ -f /root/.app_install_counter ]; then
        app_install_counter=$(cat /root/.app_install_counter)
    else
        app_install_counter=0
    fi

    if [ "$install_comment" ]; then
        echo "$install_comment" > /root/.app_install_comment
    fi

    app_install_counter=$((app_install_counter + 1))
    echo -n "$app_install_counter" > /root/.app_install_counter

    update_app_install_progress_bar
}

# NOTE: deliberately there is no "exit 0"