Add :VimspectorUpdate

README.md

@@ -453,6 +453,11 @@ which can be used to check everything is working. This is used by the regression
 tests in CI so should always work, and is a good way to check if the problem is
 your configuration rather than a bug.
 
+## Upgrade
+
+After updating the Vimspector code (either via `git pull` or whatever pacakge
+manager), run `:VimspectorUpdate` to update any already-installed gadets.
+
 # About
 
 ## Background

autoload/vimspector.vim

@@ -256,6 +256,17 @@ function! vimspector#CompleteInstall( ArgLead, CmdLine, CursorPos ) abort
                 \ . ')' )
 endfunction
 
+function! vimspector#Update() abort
+  if !s:enabled
+    return
+  endif
+
+  let prefix = vimspector#internal#state#GetAPIPrefix()
+  py3 __import__( 'vimspector',
+        \         fromlist = [ 'installer' ] ).installer.RunUpdate(
+        \           vim.eval( 'prefix' ) )
+endfunction
+
 " Boilerplate {{{
 let &cpoptions=s:save_cpo
 unlet s:save_cpo

plugin/vimspector.vim

@@ -102,6 +102,10 @@ command! -bar
 command! -bar -nargs=* -complete=custom,vimspector#CompleteInstall
       \ VimspectorInstall
       \ call vimspector#Install( <f-args> )
+command! -bar -nargs=0
+      \ VimspectorUpdate
+      \ call vimspector#Update()
+
 
 
 " Dummy autocommands so that we can call this whenever

python3/vimspector/installer.py

@@ -132,6 +132,19 @@ def RunInstaller( api_prefix, *args, **kwargs ):
   OUTPUT_VIEW.ShowOutput( 'Installer' )
 
 
+def RunUpdate( api_prefix ):
+  from vimspector import utils
+  Configure( vimspector_base = utils.GetVimspectorBase() )
+
+  current_adapters = ReadAdapters( read_existing = True )
+  adapters = []
+  for adapter_name in current_adapters.keys():
+    adapters.extend( FindGadgetForAdapter( adapter_name ) )
+
+  if adapters:
+    RunInstaller( api_prefix, *adapters )
+
+
 def GadgetListToInstallerArgs( *gadget_list ):
   installer_args = []
   for name in gadget_list: