add .local/bin/virsh-cleanup.sh

1 files changed, 98 insertions, 0 deletions

diff --git a/%HOME%/.local/bin/virsh-cleanup.sh b/%HOME%/.local/bin/virsh-cleanup.sh
new file mode 100755
index 0000000..1cf4c82
--- /dev/null
+++ b/%HOME%/.local/bin/virsh-cleanup.sh
@@ -0,0 +1,98 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2022 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "linux-home" project.
+# For details, see https://github.com/egor-tensin/linux-home.
+# Distributed under the MIT License.
+
+set -o errexit -o nounset -o pipefail
+shopt -s inherit_errexit
+
+CONNECT="${CONNECT:=qemu:///system}"
+POOL="${POOL:=default}"
+
+dump() {
+    local prefix="${FUNCNAME[0]}"
+    [ "${#FUNCNAME[@]}" -gt 1 ] && prefix="${FUNCNAME[1]}"
+
+    local msg
+    for msg; do
+        echo "$prefix: $msg"
+    done
+}
+
+run_virsh() {
+    virsh -c "$CONNECT" "$@"
+}
+
+list_domains() {
+    run_virsh list --all --name
+}
+
+list_networks() {
+    local output
+    output="$( run_virsh net-list --all --name )"
+
+    local name
+    while IFS= read -r name; do
+        [ "$name" = default ] && continue
+        echo "$name"
+    done <<< "$output"
+}
+
+list_volumes() {
+    local output
+    output="$( run_virsh vol-list "$POOL" | tail -n +3 | tr -s ' ' )"
+
+    local name
+    while IFS=' ' read -r name _; do
+        echo "$name"
+    done <<< "$output"
+}
+
+remove_domain() {
+    local domain
+    for domain; do
+        dump "$domain"
+        run_virsh destroy "$domain"
+        run_virsh undefine "$domain"
+    done
+}
+
+remove_network() {
+    local network
+    for network; do
+        dump "$network"
+        run_virsh net-destroy "$network"
+        run_virsh net-undefine "$network"
+    done
+}
+
+remove_volume() {
+    local volume
+    for volume; do
+        dump "$volume"
+        run_virsh vol-delete --pool "$POOL" "$volume"
+    done
+}
+
+main() {
+    local output item
+
+    output="$( list_domains )"
+    if [ -n "$output" ]; then
+        while IFS= read -r item; do remove_domain "$item"; done <<< "$output"
+    fi
+
+    output="$( list_volumes )"
+    if [ -n "$output" ]; then
+        while IFS= read -r item; do remove_volume "$item"; done <<< "$output"
+    fi
+
+    output="$( list_networks )"
+    if [ -n "$output" ]; then
+        while IFS= read -r item; do remove_network "$item"; done <<< "$output"
+    fi
+}
+
+main