Remove signin, signout, and auth commands

Drop all GitHub/Microsoft authentication: signIn/signOut LSP calls,
device code flow, browser-based auth UI, enterprise URI config,
and the showDocument/showMessageRequest handlers. The plugin now
relies on g:copilot_api_url/g:copilot_api_key for API access.

Author: henrybarreto

autoload/copilot.vim

@@ -536,29 +536,6 @@ function! copilot#AcceptLine(...) abort
   return copilot#Accept(a:0 ? a:1 : "\r", "[^\n]\\+")
 endfunction
 
-function! copilot#Browser() abort
-  if type(get(g:, 'copilot_browser')) == v:t_list
-    let cmd = copy(g:copilot_browser)
-  elseif type(get(g:, 'open_command')) == v:t_list
-    let cmd = copy(g:open_command)
-  elseif has('win32')
-    let cmd = ['rundll32', 'url.dll,FileProtocolHandler']
-  elseif has('mac')
-    let cmd = ['open']
-  elseif executable('wslview')
-    return ['wslview']
-  elseif executable('xdg-open')
-    return ['xdg-open']
-  else
-    return []
-  endif
-  if executable(get(cmd, 0, ''))
-    return cmd
-  else
-    return []
-  endif
-endfunction
-
 let s:commands = {}
 
 function! s:EnabledStatusMessage() abort
@@ -623,69 +600,6 @@ function! s:commands.status(opts) abort
   call s:EditorVersionWarning()
 endfunction
 
-function! s:commands.signout(opts) abort
-  echo 'Copilot: Signed out'
-  call copilot#Call('signOut', {})
-endfunction
-
-function! s:commands.setup(opts) abort
-  let startup_error = copilot#Client().StartupError()
-  if !empty(startup_error)
-      echo 'Copilot: ' . startup_error
-      return
-  endif
-
-  let data = copilot#Call('signIn', {})
-
-  if has_key(data, 'verificationUri')
-    let uri = data.verificationUri
-    if has('clipboard')
-      try
-        let @+ = data.userCode
-      catch
-      endtry
-      try
-        let @* = data.userCode
-      catch
-      endtry
-    endif
-    let codemsg = "First copy your one-time code: " . data.userCode . "\n"
-    try
-      if len(&mouse)
-        let mouse = &mouse
-        set mouse=
-      endif
-      if get(a:opts, 'bang')
-        call s:Echo(codemsg . "In your browser, visit " . uri)
-        let request = copilot#Request('signInConfirm', {})
-      else
-        call input(codemsg . "Press ENTER to open GitHub in your browser\n")
-        let request = copilot#Request('workspace/executeCommand', data.command)
-      endif
-      call s:Echo("Waiting for " . data.userCode . " at " . uri . " (could take up to 5 seconds)")
-      call request.Wait()
-    finally
-      if exists('mouse')
-        let &mouse = mouse
-      endif
-    endtry
-    if request.status ==# 'error'
-      return 'echoerr ' . string('Copilot: Authentication failure: ' . request.error.message)
-    else
-      let data = request.result
-    endif
-  elseif get(data, 'status', '') isnot# 'AlreadySignedIn'
-    return 'echoerr ' . string('Copilot: Something went wrong')
-  endif
-
-  let user = get(data, 'user', '<unknown>')
-
-  echo 'Copilot: Authenticated as GitHub user ' . user
-endfunction
-
-let s:commands.auth = s:commands.setup
-let s:commands.signin = s:commands.setup
-
 function! s:commands.help(opts) abort
   return a:opts.mods . ' help ' . (len(a:opts.arg) ? ':Copilot_' . a:opts.arg : 'copilot')
 endfunction
@@ -842,17 +756,7 @@ function! copilot#Command(line1, line2, range, bang, mods, arg) abort
       if !s:Running()
         let cmd = 'restart'
       else
-        try
-          let opts = copilot#Call('checkStatus', {'options': {'localChecksOnly': v:true}})
-          if opts.status !=# 'OK' && opts.status !=# 'MaybeOK'
-            let cmd = 'setup'
-          else
-            let cmd = 'status'
-          endif
-        catch
-          call copilot#logger#Exception()
-          let cmd = 'log'
-        endtry
+        let cmd = 'status'
       endif
     endif
     let opts = {'line1': a:line1, 'line2': a:line2, 'range': a:range, 'bang': a:bang, 'mods': a:mods, 'arg': arg}

autoload/copilot/client.vim

@@ -591,7 +591,6 @@ function! copilot#client#Settings() abort
         \ 'http': {
         \   'proxy': get(g:, 'copilot_proxy', v:null),
         \   'proxyStrictSSL': get(g:, 'copilot_proxy_strict_ssl', v:null)},
-        \ 'github-enterprise': {'uri': get(g:, 'copilot_enterprise_uri', get(g:, 'copilot_auth_provider_url', v:null))},
         \ }
   if type(settings.http.proxy) ==# v:t_string && settings.http.proxy =~# '^[^/]\+$'
     let settings.http.proxy = 'http://' . settings.http.proxy
@@ -686,14 +685,10 @@ let s:notifications = {
       \ 'window/logMessage': function('copilot#handlers#window_logMessage'),
       \ }
 
-let s:vim_handlers = {
-      \ 'window/showMessageRequest': function('copilot#handlers#window_showMessageRequest'),
-      \ 'window/showDocument': function('copilot#handlers#window_showDocument'),
-      \ }
+let s:vim_handlers = {}
 
 let s:vim_capabilities = {
       \ 'workspace': {'workspaceFolders': v:true},
-      \ 'window': {'showDocument': {'support': v:true}},
       \ }
 
 function! copilot#client#New() abort

autoload/copilot/handlers.vim

@@ -1,31 +1,3 @@
 function! copilot#handlers#window_logMessage(params, ...) abort
   call copilot#logger#Raw(get(a:params, 'type', 6), get(a:params, 'message', ''))
 endfunction
-
-function! copilot#handlers#window_showMessageRequest(params, instance, ...) abort
-  let choice = inputlist([a:instance.name . "\n" . a:params.message . "\n\nRequest Actions:"] +
-        \ map(copy(get(a:params, 'actions', [])), { i, v -> (i + 1) . '. ' . v.title}))
-  return choice > 0 ? get(a:params.actions, choice - 1, v:null) : v:null
-endfunction
-
-function! s:BrowserCallback(into, code) abort
-  let a:into.code = a:code
-endfunction
-
-function! copilot#handlers#window_showDocument(params, ...) abort
-  echo a:params.uri
-  if empty(get(a:params, 'external'))
-    return {'success': v:false}
-  endif
-  let browser = copilot#Browser()
-  if empty(browser)
-    return {'success': v:false}
-  endif
-  let status = {}
-  call copilot#job#Stream(browser + [a:params.uri], v:null, v:null, function('s:BrowserCallback', [status]))
-  let time = reltime()
-  while empty(status) && reltimefloat(reltime(time)) < 1
-    sleep 10m
-  endwhile
-  return {'success': get(status, 'code') ? v:false : v:true}
-endfunction

doc/copilot.txt

@@ -2,8 +2,6 @@
 
 GETTING STARTED                                 *copilot*
 
-Invoke `:Copilot setup` to authenticate and enable GitHub Copilot.
-
 Suggestions are displayed inline and can be accepted by pressing <Tab>.  If
 inline suggestions do not appear to be working, invoke `:Copilot status` to
 verify Copilot is enabled and not experiencing any issues.
@@ -16,12 +14,6 @@ COMMANDS                                        *:Copilot*
                                                 *:Copilot_enable*
 :Copilot enable         Re-enable GitHub Copilot after :Copilot disable.
 
-                                                *:Copilot_setup*
-:Copilot setup          Authenticate and enable GitHub Copilot.
-
-                                                *:Copilot_signout*
-:Copilot signout        Sign out of GitHub Copilot.
-
                                                 *:Copilot_status*
 :Copilot status         Check if GitHub Copilot is operational for the current
                         buffer and report on any issues.
@@ -100,13 +92,6 @@ g:copilot_node_command  Tell Copilot what `node` binary to use with
 >
                         let g:copilot_node_command =
                               \ "~/.nodenv/versions/18.18.0/bin/node"
-<
-                                                *g:copilot_enterprise_uri*
-g:copilot_enterprise_uri
-                        If you are using GitHub Copilot Enterprise, set this
-                        to the URI of your GitHub Enterprise instance.
->
-                        let g:copilot_enterprise_uri = 'https://DOMAIN.ghe.com'
 <
                                                 *g:copilot_proxy*
 g:copilot_proxy         Tell Copilot what proxy server to use.

lua/_copilot.lua

@@ -1,16 +1,7 @@
 local copilot = {}
 
-local showDocument = function(err, result, ctx, _)
-  local fallback = vim.lsp.handlers['window/showDocument']
-  if not fallback or (result.external and vim.g.copilot_browser) then
-    return vim.fn['copilot#handlers#window_showDocument'](result)
-  else
-    return fallback(err, result, ctx, _)
-  end
-end
-
 copilot.lsp_start_client = function(cmd, client_name, handler_names, opts, settings)
-  local handlers = {['window/showDocument'] = showDocument}
+  local handlers = {}
   local id
   for _, name in ipairs(handler_names) do
     handlers[name] = function(err, result, ctx, _)