99 lines
1.9 KiB
Bash
Executable file
99 lines
1.9 KiB
Bash
Executable file
#!/bin/bash
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exec_as() {
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local user="$1"
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shift
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if [ "$(whoami)" != "$user" ]; then
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exec sudo -u "$user" "$0" "$@"
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else
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cd || return
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fi
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}
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exec_as qemu "$@" || exit
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PATH="./bin:${PATH}"
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perror() {
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>&2 printf '\033[1;31mERROR:\033[0m \033[1m%s\033[0m\n' "$*"
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}
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public_help() {
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local name
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name="$(basename "$0")"
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cat << EOF
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${name}: usage:
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${name} active - (default behaviour) list active VMs
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${name} start <VM name> - start a VM
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${name} watch <VM name> - attach VM screen session
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${name} list - list available VMs
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${name} add <VM name> <template> - add launch script based on template
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${name} rm <VM name> - delete launch script
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${name} diskls - list available disk images
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${name} diskadd <disk name> <size> - create a disk image
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${name} diskrm <disk name> - delete disk image
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${name} help - show this help
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EOF
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}
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error_usage() {
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perror "Invalid usage"
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>&2 public_help
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return 1
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}
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public_start() {
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local vm_name="$1"
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shift
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screen -S "$vm_name" "$vm_name" "$@"
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}
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public_watch() {
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screen -dr "$1"
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}
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public_active() {
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screen -ls
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}
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public_list() {
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echo "Available machines:"
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ls --color=auto bin
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}
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diskpath() {
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printf 'images/%s.qcow2' "$1"
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}
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public_diskadd() {
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qemu-img create -f qcow2 "$(diskpath "$1")" "$2"
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}
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public_diskrm() {
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rm -vi -- "$(diskpath "$1")"
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}
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public_diskls() {
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echo "Available disks:"
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ls --color=auto images
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}
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public_add() {
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ln -vs "$2" "bin/${1}"
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}
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public_rm() {
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unlink "bin/${1}"
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}
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function="$1"
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shift
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if [ -z "$function" ]; then
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public_active
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elif declare -F | cut -d \ -f 3- | grep '^public_' | sed 's/^public_//' | grep -q "^${function}$"; then
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"public_${function}" "$@"
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else
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error_usage
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fi
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