feat(zsh): Compdef for polybar-msg

doc/zsh/CMakeLists.txt

@@ -1,7 +1,6 @@
 #
 # Zsh completion template
 #
-
-install(FILES _polybar
+install(FILES _polybar _polybar_msg
   DESTINATION share/zsh/site-functions
   COMPONENT tools)

doc/zsh/_polybar_msg

@@ -0,0 +1,32 @@
+#compdef polybar-msg
+#
+# Completion for polybar-msg (https://github.com/jaagr/polybar)
+#   jaagr <c@rlberg.se>
+#
+_polybar_msg() {
+  integer ret=1
+
+  _arguments -n : \
+    '-p[Process id of target instance]:process id:_polybar_msg_pids' \
+    '(-p)1:message type:(action cmd hook)' \
+    '*:: :->args'
+
+  case $state in
+    args)
+      case $words[1] in
+        hook) _arguments ':module name:' ':hook index:'; ret=0 ;;
+        action) _arguments ':action payload:'; ret=0 ;;
+        cmd) _arguments ':command payload:'; ret=0 ;;
+      esac
+      ;;
+  esac
+
+  return $ret
+}
+
+(( $+functions[_polybar_msg_pids] )) || _polybar_msg_pids() {
+  local pids; pids=(${(f)"$(ls -1 /tmp/polybar_mqueue.* | egrep -o '[0-9]+$')"})
+  _describe -t pids 'process id of target instance' pids
+}
+
+_polybar_msg "$@"