#!/bin/bash # shellcheck disable=SC1117 ################################################ SETUP ################################################ dependencies=( libasound2-dev libevdev-dev liblua5.3-dev libjack-jackd2-dev pkg-config libssl-dev python3-dev gcc make wget git ) # Replace this with 'root' to bypass the user check user="$(whoami)" # Temporary directory used for repository clone tmp_path="$(mktemp -d)" # Installer/updater install directory updater_dir="/etc/midimonster-updater" latest_version="$(curl --silent "https://api.github.com/repos/cbdevnet/midimonster/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')" # make invocation arguments makeargs="all" normal="$(tput sgr0)" dim="$(tput dim)" bold="$(tput bold)" uline="$(tput smul)" c_red="$(tput setaf 1)" c_green="$(tput setaf 2)" c_mag="$(tput setaf 5)" DEFAULT_PREFIX="/usr" DEFAULT_PLUGINPATH="/lib/midimonster" DEFAULT_CFGPATH="/etc/midimonster/midimonster.cfg" DEFAULT_EXAMPLES="/share/midimonster" ############################################## FUNCTIONS ############################################## assign_defaults(){ VAR_PREFIX="${VAR_PREFIX:-$DEFAULT_PREFIX}" VAR_PLUGINS="${VAR_PLUGINS:-$VAR_PREFIX$DEFAULT_PLUGINPATH}" VAR_DEFAULT_CFG="${VAR_DEFAULT_CFG:-$DEFAULT_CFGPATH}" VAR_EXAMPLE_CFGS="${VAR_EXAMPLE_CFGS:-$VAR_PREFIX$DEFAULT_EXAMPLES}" } ARGS(){ for i in "$@"; do case "$i" in --prefix=*) VAR_PREFIX="${i#*=}" ;; --plugins=*) VAR_PLUGINS="${i#*=}" ;; --defcfg=*) VAR_DEFAULT_CFG="${i#*=}" ;; --examples=*) VAR_EXAMPLE_CFGS="${i#*=}" ;; --dev) NIGHTLY=1 ;; -d|--default) assign_defaults ;; -fu|--forceupdate) UPDATER_FORCE="1" ;; --install-updater|--selfupdate) NIGHTLY=1 prepare_repo install_script exit 0 ;; --install-dependencies) install_dependencies "${dependencies[@]}" exit 0 ;; -h|--help|*) assign_defaults printf "%sUsage: %s[OPTIONS]%s" "${bold}" "${normal} ${0} ${c_green}" "${normal}" printf "\n\t%s--prefix=%s<path>%s\t\tSet the installation prefix.\t\t%sDefault:%s" "${c_green}" "${normal}${c_red}" "${normal}" "${c_mag}" "${normal} ${dim}$VAR_PREFIX${normal}" printf "\n\t${c_green}--plugins=${normal}${c_red}<path>${normal}\tSet the plugin install path.\t\t${c_mag}Default:${normal} ${dim}%s${normal}" "$VAR_PLUGINS" printf "\n\t${c_green}--defcfg=${normal}${c_red}<path>${normal}\t\tSet the default configuration path.\t${c_mag}Default:${normal} ${dim}%s${normal}" "$VAR_DEFAULT_CFG" printf "\n\t${c_green}--examples=${normal}${c_red}<path>${normal}\tSet the path for example configurations.\t${c_mag}Default:${normal} ${dim}%s${normal}\n" "$VAR_EXAMPLE_CFGS" printf "\n\t%s--dev%s\t\t\tInstall nightly version." "${c_green}" "${normal}" printf "\n\t%s-d,\t--default%s\tUse default values to install." "${c_green}" "${normal}" printf "\n\t%s-fu,\t--forceupdate%s\tForce the updater to update without a version check." "${c_green}" "${normal}" printf "\n\t%s--selfupdate%s\t\tUpdates this script to the newest version and exit." "${c_green}" "${normal}" printf "\n\t%s--install-updater%s\tInstall the updater (Run with midimonster-updater) and exit." "${c_green}" "${normal}" printf "\n\t%s--install-dependencies%s\tInstall dependencies and exit" "${c_green}" "${normal}" printf "\n\t%s-h,\t--help%s\t\tShow this message and exit." "${c_green}" "${normal}" printf "\n\t%sEach argument can be overwritten by another, the last one is used!.%s\n" "${uline}${bold}${c_mag}" "${normal}" rmdir "$tmp_path" exit 0 ;; esac shift done } # Install unmatched dependencies install_dependencies(){ DEBIAN_FRONTEND=noninteractive apt-get update -y -qq > /dev/null || error_handler "There was an error doing apt update." # unset "$deps" for dependency in "$@"; do if [ "$(dpkg-query -W -f='${Status}' "$dependency" 2>/dev/null | grep -c "ok installed")" -eq 0 ]; then deps+=("$dependency") # Add not installed dependency to the "to be installed array". else printf "%s already installed!\n" "$dependency" # If the dependency is already installed print it. fi done if [ ! "${#deps[@]}" -ge "1" ]; then # If nothing needs to get installed don't start apt. printf "\nAll dependencies are fulfilled!\n" # Dependency array empty! Not running apt! else printf "\nThen following dependencies are going to be installed:\n" # Dependency array contains items. Running apt. printf "\n%s\n" "${deps[@]}" | sed 's/ /, /g' DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-suggests --no-install-recommends "${deps[@]}" > /dev/null || error_handler "There was an error doing dependency installation." printf "\nAll dependencies are installed now!\n" # Dependency array empty! Not running apt! fi printf "\n" } ask_questions(){ # Only say if necessary if [ -z "$VAR_PREFIX" ] || [ -z "$VAR_PLUGINS" ] || [ -z "$VAR_DEFAULT_CFG" ] || [ -z "$VAR_EXAMPLE_CFGS" ]; then printf "%sIf you don't know what you're doing, just hit enter a few times.%s\n\n" "${bold}" "${normal}" fi if [ -z "$VAR_PREFIX" ]; then read -r -e -i "$DEFAULT_PREFIX" -p "PREFIX (Install root directory): " input VAR_PREFIX="${input:-$VAR_PREFIX}" fi if [ -z "$VAR_PLUGINS" ]; then read -r -e -i "$VAR_PREFIX$DEFAULT_PLUGINPATH" -p "PLUGINS (Plugin directory): " input VAR_PLUGINS="${input:-$VAR_PLUGINS}" fi if [ -z "$VAR_DEFAULT_CFG" ]; then read -r -e -i "$DEFAULT_CFGPATH" -p "Default config path: " input VAR_DEFAULT_CFG="${input:-$VAR_DEFAULT_CFG}" fi if [ -z "$VAR_EXAMPLE_CFGS" ]; then read -r -e -i "$VAR_PREFIX$DEFAULT_EXAMPLES" -p "Example config directory: " input VAR_EXAMPLE_CFGS="${input:-$VAR_EXAMPLE_CFGS}" fi } # Clone the repository and select the correct version prepare_repo(){ printf "Cloning the repository\n" git clone "https://github.com/cbdevnet/midimonster.git" "$tmp_path" printf "\n" # If not set via argument, ask whether to install development build if [ -z "$NIGHTLY" ]; then read -r -p "Do you want to install the latest development version? (y/n)? " magic case "$magic" in y|Y) printf "OK! You´re a risky person ;D\n\n" NIGHTLY=1 ;; n|N) printf "That´s OK - installing the latest stable version for you ;-)\n\n" NIGHTLY=0 ;; *) printf "%sInvalid input -- INSTALLING LATEST STABLE VERSION!%s\n\n" "${bold}" "${normal}" NIGHTLY=0 ;; esac fi # Roll back to last tag if a stable version was requested if [ "$NIGHTLY" != 1 ]; then cd "$tmp_path" || error_handler "Error doing cd to $tmp_path" printf "Finding latest stable version...\n" last_tag=$(git describe --abbrev=0) printf "Checking out %s...\n" "$last_tag" git checkout -f -q "$last_tag" fi printf "\n" } # Build and install the software build(){ # Export variables for make export PREFIX="$VAR_PREFIX" export PLUGINS="$VAR_PLUGINS" export DEFAULT_CFG="$VAR_DEFAULT_CFG" export EXAMPLES="$VAR_EXAMPLE_CFGS" cd "$tmp_path" || error_handler "Error doing cd to $tmp_path" make clean make "$makeargs" make install } # Save data for the updater save_config(){ rm -f "$updater_dir/updater.conf" mkdir -p "$updater_dir" printf "Exporting updater config\n" printf "VAR_PREFIX=%s\nVAR_PLUGINS=%s\nVAR_DEFAULT_CFG=%s\nVAR_DESTDIR=%s\nVAR_EXAMPLE_CFGS=%s\n" "$VAR_PREFIX" "$VAR_PLUGINS" "$VAR_DEFAULT_CFG" "$VAR_DESTDIR" "$VAR_EXAMPLE_CFGS" > "$updater_dir/updater.conf" } # Updates this script using the one from the checked out repo (containing the requested version) install_script(){ mkdir -p "$updater_dir" printf "Copying updater to %s/updater.sh\n" "$updater_dir" cp "$tmp_path/installer.sh" "$updater_dir/updater.sh" chmod +x "$updater_dir/updater.sh" printf "Creating symlink /usr/bin/midimonster-updater\n" ln -s "$updater_dir/updater.sh" "/usr/bin/midimonster-updater" } error_handler(){ [[ -n $1 ]] && printf "\n%s\n" "$1" printf "\nAborting" for i in {1..3}; do sleep 0.3s && printf "." && sleep 0.2s; done printf "\n" exit "1" } cleanup(){ if [ -d "$tmp_path" ]; then printf "Cleaning up temporary files...\n" rm -rf "$tmp_path" fi } ################################################ Main ################################################# trap error_handler SIGINT SIGTERM trap cleanup EXIT # Parse arguments ARGS "$@" clear # Check whether we have the privileges to install stuff if [ "$user" != "root" ]; then printf "The installer/updater requires root privileges to install the midimonster system-wide\n" exit 1 fi # Check if we can download the sources if [ "$(wget -q --spider http://github.com)" ]; then printf "The installer/updater requires internet connectivity to download the midimonster sources and dependencies\n" exit 1 fi # Check whether the updater needs to run if [ -f "$updater_dir/updater.conf" ] || [ "$UPDATER_FORCE" = "1" ]; then if [ -f "$updater_dir/updater.conf" ]; then # shellcheck source=/dev/null . "$updater_dir/updater.conf" # Parse arguments again to compensate overwrite from source ARGS "$@" printf "Imported settings from %s/updater.conf\n" "$updater_dir" fi if [ -n "$UPDATER_FORCE" ]; then printf "Forcing the updater to start...\n\n" elif [ -x "$VAR_PREFIX/bin/midimonster" ]; then installed_version="$(midimonster --version)" if [[ "$installed_version" =~ $latest_version ]]; then printf "The installed version %s seems to be up to date\nDoing nothing\n\n" "${bold}$installed_version${normal}" exit 0 else printf "The installed version %s does not match the latest version %s\nMaybe you are running a development version?\n\n" "${bold}$installed_version${normal}" "${bold}$latest_version${normal}" fi fi # Run updater steps prepare_repo install_script save_config build else # Run installer steps install_dependencies "${dependencies[@]}" prepare_repo ask_questions install_script save_config build fi exit 0