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37a1ed9296 | |||
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8e5346a7f2 |
2 changed files with 28 additions and 27 deletions
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@ -47,8 +47,7 @@ need it
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- `bash` - the `qemush` interpreter
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- `coreutils` - used for basic OS operations
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- `sudo` - execute commands as `qemu`
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- `source-highlight` - for syntax highlighting when displaying launching
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scripts
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- `socat` - monitor machines via Unix sockets
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- `diskpath` and `sockpath` - see [Installation
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instructions](#installation-instructions)
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- any text editor - used for builtin function to edit launching scripts
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52
bin/qemush
52
bin/qemush
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@ -15,24 +15,14 @@ exec_as() {
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# Exec the script as qemu
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exec_as qemu "$@"
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# Directories used in the program
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bin="${HOME}/launchers"
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images="${HOME}/disks"
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sockets="${HOME}/sockets"
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# Environment
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PATH="${bin}:${HOME}/bin:${PATH}"
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PATH="${HOME}/launchers:${HOME}/bin:${PATH}"
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EDITOR="${EDITOR:-nvim}"
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export QEMUSH_NAME
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# Aliases
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alias ls='ls --color=auto'
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alias exec='exec '
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if [ -t 1 ]; then
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alias pretty_cat='source-highlight --failsafe -f esc --style-file=esc.style -i'
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else
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alias pretty_cat=cat
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fi
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shopt -s expand_aliases
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# Set a restrictive umask to make sure qemu user files are private
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@ -46,7 +36,7 @@ perror() {
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# Function to show the usage
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public_help() {
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local name
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name="$(basename "$0")"
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name=$(basename "$0")
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exec cat << EOF
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${name}: usage:
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@ -76,9 +66,11 @@ error_usage() {
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# Function to start a virtual machine
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public_start() {
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QEMUSH_NAME="$1"
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shift
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"$QEMUSH_NAME" "$@" || perror "error launching virtual machine \"${QEMUSH_NAME}\""
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if ! "$@"; then
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perror "error launching virtual machine \"${QEMUSH_NAME}\""
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return 2
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fi
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}
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# Attach to a running virtual machine output, the latest opened if no
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@ -92,21 +84,22 @@ public_watch() {
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# List running virtual machines
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public_active() {
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cd || return
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echo "Running machines:"
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exec ls -t "$sockets"
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exec ls -t sockets
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}
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# List available virtual machines entrypoints
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public_ls() {
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cd || return
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echo "Available machines:"
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exec ls "$bin"
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exec ls launchers
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}
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# Create a copy-on-write disk for a virtual machine
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public_diskadd() {
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QEMUSH_NAME="$1"
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shift
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exec qemu-img create -f qcow2 "$(diskpath)" "$1"
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}
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@ -114,26 +107,29 @@ public_diskadd() {
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public_diskrm() {
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QEMUSH_NAME="$1"
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shift
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exec rm -vi -- "$(diskpath)"
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}
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# List available disks
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public_diskls() {
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cd || return
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echo "Available disks:"
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exec ls "$images"
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exec ls disks
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}
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# Edit a virtual machine entrypoint with a text editor
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public_edit() {
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local file="${bin}/${1}"
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cd || return
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local file="launchers/${1}"
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"$EDITOR" "$file"
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[ -f "$file" ] && exec chmod u+x "$file"
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}
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# Delete a virtual machine entrypoint
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public_rm() {
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exec rm -vi -- "${bin}/${1}"
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cd || return
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exec rm -vi -- "launchers/${1}"
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}
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# Invoke bash as qemu user in its home directory
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@ -145,7 +141,7 @@ public_shell() {
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# Output the content of an entrypoint, with coloration if on a virtual
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# terminal
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public_cat() {
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pretty_cat "${bin}/${1}"
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cat "launchers/${1}"
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}
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# Copy a file in entrypoints folder
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@ -154,9 +150,15 @@ public_add() {
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set -e
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local name
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name="${2:-$(basename "$1")}"
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cp -v -i -- "$1" "${bin}/${2}"
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chmod 740 "${bin}/${name}"
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if [ -n "$2" ]; then
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name="$2"
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else
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name=$(basename "$1")
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fi
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name="${HOME}/launchers/${name}"
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cp -vi -- "$1" "$name"
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chmod 740 "$name"
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set +e
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trap - EXIT
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