Follow changes in removal script

deployment/proxmox/remove.sh

@@ -11,7 +11,7 @@ readonly api_url=https://192.168.51.81:8006/api2/json
 ## now, let us just use `node051` everywhere.
 readonly node=node051
 
-readonly tmpdir=/tmp/proxmox-provision-$RANDOM
+readonly tmpdir=/tmp/proxmox-remove-$RANDOM
 mkdir $tmpdir
 
 ################################################################################
@@ -23,18 +23,22 @@ vm_ids=
 
 help () {
   cat <<EOF
-Usage: $0 [OPTION...] [ID...]
+Usage: $0 [OPTION...] ID [ID...]
 
-Authentication options:
+Options:
   --username STR    Username, with provider (eg. niols@pve)
   --password STR    Password
 
-  If not provided via the command line, username and password will be looked for
-  in a '.proxmox' file in the current working directory, the username on the
-  first line, and the password on the second.
-
-Others:
   -h|-?|--help      Show this help and exit
+
+Options can also be provided by adding assignments to a '.proxmox' file in the
+current working directory. For instance, it could contain:
+
+  cores=7
+  username=mireille@pve
+  debug=true
+
+Command line options take precedence over options found in the '.proxmox' file.
 EOF
 }
 
@@ -43,6 +47,10 @@ die () { printf '\033[31m'; printf "$@"; printf '\033[0m\n'; exit 2; }
 # shellcheck disable=SC2059
 die_with_help () { printf '\033[31m'; printf "$@"; printf '\033[0m\n'; help; exit 2; }
 
+if [ -f .proxmox ]; then
+  . "$PWD"/.proxmox
+fi
+
 while [ $# -gt 0 ]; do
   argument=$1
   shift
@@ -58,12 +66,12 @@ while [ $# -gt 0 ]; do
   esac
 done
 
+if [ -z "$vm_ids" ]; then
+  die_with_help "Required: at least one VM id.\n"
+fi
+
 if [ -z "$username" ] || [ -z "$password" ]; then
-  if [ -f .proxmox ]; then
-    { read -r username; read -r password; } < .proxmox
-  else
-    die_with_help "Required: '--username' and '--password'.\n"
-  fi
+  die_with_help "Required: '--username' and '--password'.\n"
 fi
 
 ################################################################################