refactor: urfave v3

scripts/autocomplete/bash

@@ -2,17 +2,31 @@
 
 : ${PROG:=$(basename ${BASH_SOURCE})}
 
+# Macs have bash3 for which the bash-completion package doesn't include
+# _init_completion. This is a minimal version of that function.
+_cli_init_completion() {
+  COMPREPLY=()
+  _get_comp_words_by_ref "$@" cur prev words cword
+}
+
 _cli_bash_autocomplete() {
   if [[ "${COMP_WORDS[0]}" != "source" ]]; then
-    local cur opts base
+    local cur opts base words
     COMPREPLY=()
     cur="${COMP_WORDS[COMP_CWORD]}"
-    if [[ "$cur" == "-"* ]]; then
-      opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} ${cur} --generate-bash-completion )
+    if declare -F _init_completion >/dev/null 2>&1; then
+      _init_completion -n "=:" || return
     else
-      opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} --generate-bash-completion )
+      _cli_init_completion -n "=:" || return
     fi
-    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+    words=("${words[@]:0:$cword}")
+    if [[ "$cur" == "-"* ]]; then
+      requestComp="${words[*]} ${cur} --generate-shell-completion"
+    else
+      requestComp="${words[*]} --generate-shell-completion"
+    fi
+    opts=$(eval "${requestComp}" 2>/dev/null)
+    COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
     return 0
   fi
 }