various improvements

packaging/files/compute.bash-completion

@@ -0,0 +1,93 @@
+# compute bash completion script
+
+_compute_root_cmd="
+    --version
+    --verbose
+    --connect
+    --log-level
+    init
+    exec
+    ls
+    start
+    shutdown
+    reboot
+    reset
+    powrst
+    pause
+    resume
+    status
+    setvcpus
+    setmem
+    setpasswd"
+_compute_init_opts=""
+_compute_exec_opts="
+    --timeout
+    --executable
+    --env
+    --no-join-args"
+_compute_ls_opts=""
+_compute_start_opts=""
+_compute_shutdown_opts="--method"
+_compute_reboot_opts=""
+_compute_reset_opts=""
+_compute_powrst_opts=""
+_compute_pause_opts=""
+_compute_resume_opts=""
+_compute_status_opts=""
+_compute_setvcpus_opts=""
+_compute_setmem_opts=""
+_compute_setpasswd_opts="--encrypted"
+
+_compute_complete_instances()
+{
+    for file in /etc/libvirt/qemu/*.xml; do
+        nodir="${file##*/}"
+        printf '%s ' "${nodir//\.xml}"
+    done
+}
+
+_compute_compreply()
+{
+    if [[ "$current" = [a-z]* ]]; then
+        _compute_compwords="$(_compute_complete_instances)"
+    else
+        _compute_compwords="$*"
+    fi
+    COMPREPLY=($(compgen -W "$_compute_compwords" -- "$current"))
+}
+
+_compute_complete()
+{
+    local current previous nshift
+    current="${COMP_WORDS[COMP_CWORD]}"
+    case "$COMP_CWORD" in
+        1)  COMPREPLY=($(compgen -W "$_compute_root_cmd" -- "$current"))
+        ;;
+        2|3|4|5)
+            nshift=$((COMP_CWORD-1))
+            previous="${COMP_WORDS[COMP_CWORD-nshift]}"
+            case "$previous" in
+                init) COMPREPLY=($(compgen -f -- "$current"));;
+                exec) _compute_compreply "$_compute_exec_opts";;
+                ls) COMPREPLY=($(compgen -W "$_compute_ls_opts" -- "$current"));;
+                start) _compute_compreply "$_compute_start_opts";;
+                shutdown) _compute_compreply "$_compute_shutdown_opts";;
+                reboot) _compute_compreply "$_compute_reboot_opts";;
+                reset) _compute_compreply "$_compute_reset_opts";;
+                powrst) _compute_compreply "$_compute_powrst_opts";;
+                pause) _compute_compreply "$_compute_pause_opts";;
+                resume) _compute_compreply "$_compute_resume_opts";;
+                status) _compute_compreply "$_compute_status_opts";;
+                setvcpus) _compute_compreply "$_compute_setvcpus_opts";;
+                setmem) _compute_compreply "$_compute_setmem_opts";;
+                setpasswd) _compute_compreply "$_compute_setpasswd_opts";;
+                *) COMPREPLY=()
+            esac
+            ;;
+        *)  COMPREPLY=($(compgen -W "$_compute_compwords" -- "$current"))
+    esac
+}
+
+complete -F _compute_complete compute
+
+# vim: ft=bash