Add installation script

Author: hwittenborn

static/install

@@ -0,0 +1,135 @@
+#!/usr/bin/env bash
+# The installation script for makedeb. This is the script that's shown and gets ran from https://makedeb.org.
+set -e
+
+# Handy env vars.
+MAKEDEB_RELEASE="${MAKEDEB_RELEASE:-}"
+makedeb_url='makedeb.org'
+color_normal="$(tput sgr0)"
+color_bold="$(tput bold)"
+color_green="$(tput setaf 77)"
+color_orange="$(tput setaf 214)"
+color_blue="$(tput setaf 14)"
+color_red="$(tput setaf 202)"
+color_purple="$(tput setaf 135)"
+noninteractive_mode=0
+apt_args=()
+
+# Handy functions.
+msg() {
+    echo "${color_blue}[>]${color_normal} ${1}"
+}
+
+error() {
+    echo "${color_red}[!]${color_normal} ${1}"
+}
+
+question() {
+    echo "${color_purple}[?]${color_normal} ${1}"
+}
+
+die_cmd() {
+    error "${1}"
+    exit 1
+}
+
+answered_yes() {
+    if [[ "${1}" == "" || "${1,,}" == "y" ]]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+# Pre-checks.
+if [[ "${UID}" == "0" ]]; then
+    die_cmd "This script is not allowed to be run under the root user. Please run as a normal user and try again."
+fi
+
+# Program start.
+echo "-------------------------"
+echo "${color_green}[#]${color_normal} ${color_orange}makedeb Installer${color_normal} ${color_green}[#]${color_normal}"
+echo "-------------------------"
+echo
+
+if ! echo "${-}" | grep -q i; then
+    msg "Running in noninteractive mode."
+    noninteractive_mode=1
+    export DEBIAN_FRONTEND=noninteractive
+    apt_args+=('-y')
+fi
+
+msg "Ensuring needed packages are installed..."
+if ! sudo apt-get update "${apt_args[@]}"; then
+    die_cmd "Failed to update APT cache."
+fi
+
+missing_dependencies=()
+dpkg-query -W 'wget' > /dev/null 2>&1 || missing_dependencies+=('wget')
+dpkg-query -W 'gpg' > /dev/null 2>&1 || missing_dependencies+=('gpg')
+
+if ! ( test -z "${missing_dependencies[*]}" || sudo apt-get install "${apt_args[@]}" --mark-auto "${missing_dependencies[@]}" ); then
+    die_cmd "Failed to install needed packages."
+fi
+
+echo
+
+if (( "${noninteractive_mode}" )) && [[ "${MAKEDEB_RELEASE:+x}" == '' ]]; then
+    error "The script was ran in noninteractive mode, but no makedeb package was specified to install."
+    error "Please specify a package to install via the 'MAKEDEB_RELEASE' environment variable."
+    die_cmd "Available packages are 'makedeb', 'makedeb-beta', and 'makedeb-alpha'."
+elif [[ "${MAKEDEB_RELEASE:+x}" == '' ]]; then
+    msg "Multiple releases of makedeb are available for installation."
+    msg "Currently, you can install one of 'makedeb', 'makedeb-beta', or"
+    msg "'makedeb-alpha'."
+    
+    while true; do
+        read -p "$(question "Which release would you like? ")" MAKEDEB_RELEASE
+
+        if ! echo "${MAKEDEB_RELEASE}" | grep -qE '^makedeb$|^makedeb-beta$|^makedeb-alpha$'; then
+            error "Invalid response: ${MAKEDEB_RELEASE}"
+            continue
+        fi
+
+        break
+    done
+    
+    echo
+fi
+
+case "${MAKEDEB_RELEASE}" in
+    makedeb|makedeb-alpha|makedeb-beta)
+        ;;
+    *)
+        echo
+        error "Invalid \$MAKEDEB_RELEASE: '${MAKEDEB_RELEASE}'"
+        exit 1 ;;
+esac
+
+msg "Setting up makedeb APT repository..."
+if ! wget -qO - "https://proget.${makedeb_url}/debian-feeds/makedeb.pub" | gpg --dearmor | sudo tee /usr/share/keyrings/makedeb-archive-keyring.gpg 1> /dev/null; then
+    die_cmd "Failed to set up makedeb APT repository."
+fi
+echo "deb [signed-by=/usr/share/keyrings/makedeb-archive-keyring.gpg arch=all] https://proget.${makedeb_url} makedeb main" | sudo tee /etc/apt/sources.list.d/makedeb.list 1> /dev/null
+
+msg "Updating APT cache..."
+if ! sudo apt-get update "${apt_args[@]}"; then
+    die_cmd "Failed to update APT cache."
+fi
+
+echo
+msg "Installing '${MAKEDEB_RELEASE}'..."
+if ! sudo apt-get install "${apt_args[@]}" -- "${MAKEDEB_RELEASE}"; then
+    die_cmd "Failed to install package."
+fi
+
+msg "Finished! If you need help of any kind, feel free to reach out:"
+echo
+msg "${color_bold}makedeb Homepage:${color_normal}            https://${makedeb_url}"
+msg "${color_bold}makedeb Package Repository:${color_normal}  https://mpr.${makedeb_url}"
+msg "${color_bold}makedeb Documentation:${color_normal}       https://docs.${makedeb_url}"
+msg "${color_bold}makedeb Support:${color_normal}             https://docs.${makedeb_url}/support/obtaining-support"
+echo
+msg "Enjoy makedeb!"
+
+# vim: set sw=4 expandtab: