Initial working version (functional 'start' command).
This commit is contained in:
Morgan Aldridge
commit
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`basiliskiivm`
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==============
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by Morgan T. Aldridge <morgant@makkintosshu.com>
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OVERVIEW
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--------
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`basiliskiivm` is a quick utility I hacked together to package up [BasiliskII](https://github.com/cebix/macemu/) emulator prefs & disk images into a single `.basiliskiivm` directory to make them easier to manage, move, launch, and maintain multiple VMs.
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USAGE
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-----
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_TBD_
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LICENSE
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-------
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_TBD_
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Copyright (c) 2016 Morgan T. Aldridge. All rights reserved.
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#!/bin/bash
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#
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# basiliskiivm - Package BasiliskII emulator settings & disk images
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# into a single '.basiliskiivm' directory and run
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# from there.
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#
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# CHANGE LOG:
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#
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# v0.1 2016-12-08 - Morgan T. Aldridge <morgant@makkintosshu.com>
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# Initial version.
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#
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# LICENSE:
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#
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# Copyright (c) 2016, Morgan T. Aldridge. All rights reserved.
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#
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# global variables
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user="$(whoami)"
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tool="$(basename "$0")"
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BASILISKII_BINARY="${BASILISKII_BINARY:=BasiliskII}"
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if [ "$user" == "root" ]; then
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PID_FILE_PATH="${PID_FILE_PATH:="/var/run/${tool}"}"
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else
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PID_FILE_PATH="${PID_FILE_PATH:="${HOME}/.${tool}"}"
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fi
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basiliskii_prefs_file=".basilisk_ii_prefs"
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function usage() {
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echo "Usage: ${tool} [options] <command> [...]"
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}
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function vm_pkg_name() {
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local success=false
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local vm="$(basename "$1")"
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if [[ "$vm" =~ ^(.+)\.[Bb]asilisk[Ii]{2}[Vv][Mm]$ ]]; then
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echo "${BASH_REMATCH[1]}"
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success=true
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fi
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$success
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}
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function vm_pkg_config_file() {
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local success=false
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local vm="$(vm_pkg_name "$1")"
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if [ -n "$vm" ]; then
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local prefs_file="$1/${basiliskii_prefs_file}"
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if [ -f "$prefs_file" ]; then
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echo "$prefs_file"
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sucess=true
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fi
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fi
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$success
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}
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function vm_is_running() {
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local running=false
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local vm="$(vm_pkg_name "$1")"
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if [ -n "$vm" ]; then
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local pid_path="${PID_FILE_PATH}/${vm}.pid"
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if [ -f "$pid_path" ]; then
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if ps -p "$(cat "$pid_path")" > /dev/null 2>&1; then
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running=true
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fi
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fi
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fi
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$running
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}
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function vm_create_pid_file() {
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local success=false
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local vm="$(vm_pkg_name "$1")"
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if [ -n "$vm" ]; then
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local pid_path="${PID_FILE_PATH}/${vm}.pid"
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# create the pid file directory, if necessary
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if [ ! -d "$PID_FILE_PATH" ]; then
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mkdir "${PID_FILE_PATH}"
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fi
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# create the pid file
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if ! echo "$2" > "$pid_path"; then
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echo "ERROR! Unable to create the '$vm' BasiliskII VM PID file '$pid_path'."
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else
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success=true
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fi
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fi
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$success
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}
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function vm_delete_pid_file() {
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local success=false
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local vm="$(vm_pkg_name "$1")"
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if [ -n "$vm" ]; then
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local pid_path="${PID_FILE_PATH}/${vm}.pid"
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if [ ! -f "$pid_path" ]; then
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echo "ERROR! The '$vm' BasiliskII VM PID file '$pid_path' doesn't exist, so cannot delete it."
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else
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if ! rm "$pid_path"; then
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echo "ERROR! Unable to delete the '$vm' BasiliskII VM PID file '$pid_path'."
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else
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success=true
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fi
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fi
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fi
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$success
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}
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function package() {
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success=false
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echo "ERROR! This functionality isn't implemented yet."
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$success
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}
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function vm_start() {
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local success=false
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local vm="$(vm_pkg_name "$1")"
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if [ -n "$vm" ]; then
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if vm_is_running "$1"; then
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echo "Error! The '$vm' BasiliskII VM is already running."
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else
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local config="$(vm_pkg_config_file "$1")"
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if [ -z "$config" ]; then
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echo "Error! The '$vm' BasiliskII VM's config file couldn't be found."
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else
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echo "Starting the '$vm' BasiliskII VM..."
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"$BASILISKII_BINARY" --config "$config" >/dev/null &
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local pid="$!"
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if [ -z "$pid" -a "$pid" -lt 1 ]; then
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echo "ERROR! The '$vm' BasiliskII VM didn't start correctly."
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elif vm_create_pid_file "$1" "$pid"; then
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success=true
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fi
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fi
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fi
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fi
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$success
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}
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function main() {
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case "$1" in
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"-h" | "--help")
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usage
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exit 0
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;;
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"start")
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shift
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vm_start "$1"
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;;
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"package")
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shift
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package "$1"
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;;
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*)
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echo "ERROR! Unknown option '$1'. Exiting"
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exit 1
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;;
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esac
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}
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main "$@"
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