feat: recache bash-completion output whenever actions are taken on plugins

While this slows down those actions, it ensures we never have out of date information.

plugins/plugin/internal-functions

@@ -8,3 +8,10 @@ plugin_list_cmd() {
   plugn version
   plugn list
 }
+
+plugin_prime_bash_completion() {
+  declare desc="primes the bash-completion cache"
+
+  dokku_log_info1_quiet "Priming bash-completion cache"
+  dokku --quiet help --all | awk '/^    /{ print $1 }' | sort > "/var/cache/dokku-completion"
+}

plugins/plugin/subcommands/disable

@@ -9,6 +9,7 @@ plugin_disable_cmd() {
   [[ -z $2 ]] && dokku_log_fail "Please specify a plugin to disable"
   local PLUGIN="$2"
   disable_plugin "$PLUGIN"
+  plugin_prime_bash_completion
 }
 
 plugin_disable_cmd "$@"

plugins/plugin/subcommands/enable

@@ -9,6 +9,7 @@ plugin_enable_cmd() {
   [[ -z $2 ]] && dokku_log_fail "Please specify a plugin to enable"
   local PLUGIN="$2"
   enable_plugin "$PLUGIN"
+  plugin_prime_bash_completion
 }
 
 plugin_enable_cmd "$@"

plugins/plugin/subcommands/install

@@ -20,6 +20,7 @@ plugin_install_cmd() {
       plugn trigger install
       ;;
   esac
+  plugin_prime_bash_completion
 }
 
 plugin_install_cmd "$@"

plugins/plugin/subcommands/uninstall

@@ -9,6 +9,7 @@ plugin_uninstall_cmd() {
   [[ -z $2 ]] && dokku_log_fail "Please specify a plugin to enable"
   local PLUGIN="$2"
   uninstall_plugin "$PLUGIN"
+  plugin_prime_bash_completion
 }
 
 plugin_uninstall_cmd "$@"

plugins/plugin/subcommands/update

@@ -10,6 +10,7 @@ plugin_update_cmd() {
     plugn update "$PLUGIN" "$PLUGIN_COMMITTISH"
   fi
   plugn trigger update
+  plugin_prime_bash_completion
 }
 
 plugin_update_cmd "$@"