Fix windows installer leaving files and error on plover_plugins

news.d/bugfix/1842.core.md

@@ -0,0 +1 @@
+If plover_plugins does not have arguments, print available arguments and exit.

news.d/bugfix/1842.windows.md

@@ -0,0 +1 @@
+Update Windows installer NSI to remove all files.

plover/plugins_manager/__main__.py

@@ -82,6 +82,10 @@ def list_plugins(freeze=False):
 def main(args=None):
     if args is None:
         args = sys.argv[1:]
+    if not args:
+        print("Usage: plover_plugins <command> [args]")
+        print("Commands: list_plugins [--freeze], check, install, uninstall, list")
+        sys.exit(2)
     if args[0] == "list_plugins":
         assert len(args) <= 2
         if len(args) > 1:

windows/installer.nsi

@@ -111,9 +111,11 @@ SectionEnd
 Section "Uninstall"
 
   RMDir /r "$INSTDIR\data"
+  RMDir /r "$INSTDIR\hidapi-src"
   Delete "$INSTDIR\LICENSE.txt"
   Delete "$INSTDIR\plover.exe"
   Delete "$INSTDIR\plover_console.exe"
+  Delete "$INSTDIR\vcruntime140.dll"
   Delete "$INSTDIR\uninstall.exe"
   RMDir "$INSTDIR"