Get automatic LSP server install working (UX kinda sucks tho)

config/vim/lsp.vim

@@ -1,12 +1,12 @@
 vim9script
 
-final lspServers = [
+const lspServers = [
   {
     name: 'dockerfile-langserver',
     filetype: 'dockerfile',
     path: expand('~/.local/bin/docker-langserver'),
     args: ['--stdio'],
-    install: 'npm install -g dockerfile-language-server-nodejs',
+    install: ['npm', 'install', '-g', 'dockerfile-language-server-nodejs'],
   },
 
   {
@@ -14,7 +14,7 @@ final lspServers = [
     filetype: 'bzl',
     path: '/usr/local/bin/tilt',
     args: ['lsp', 'start'],
-    install: 'brew install tilt',
+    install: ['brew', 'install', 'tilt'],
   },
 
   {
@@ -22,7 +22,7 @@ final lspServers = [
     filetype: ['javascript', 'typescript'],
     path: '/usr/local/bin/typescript-language-server',
     args: ['--stdio'],
-    install: 'brew install typescript-language-server',
+    install: ['brew', 'install', 'typescript-language-server'],
   },
 
   {
@@ -33,7 +33,7 @@ final lspServers = [
     initializationOptions: {
       'language_server_configuration.auto_config': false,
     },
-    install: 'curl -Lo phpactor https://github.com/phpactor/phpactor/releases/latest/download/phpactor.phar && chmod u+x phpactor && mv phpactor ~/bin'
+    install: ['bash', '-c', 'curl -Lo phpactor https://github.com/phpactor/phpactor/releases/latest/download/phpactor.phar && chmod u+x phpactor && mv phpactor ~/bin'],
   },
 
   {
@@ -41,7 +41,7 @@ final lspServers = [
     filetype: 'python',
     path: '/usr/local/bin/pylsp',
     args: [],
-    install: 'brew install python-lsp-server',
+    install: ['brew', 'install', 'python-lsp-server'],
   },
 
   {
@@ -49,18 +49,25 @@ final lspServers = [
     filetype: 'vim',
     path: expand('~/.local/bin/vim-language-server'),
     args: ['--stdio'],
-    install: 'npm install -g vim-language-server',
+    install: ['npm', 'install', '-g', 'vim-language-server'],
   },
 ]
 
-final lspOptions = {
+const lspOptions = {
   aleSupport: true,
 }
 
 autocmd VimEnter * ++once {
+  # TODO: work out a way nicer approach to automatically installing any
+  # missing language servers. Maybe use a command or something.
+  const missing = lspServers->copy()
+    ->filter((_, server) => !executable(server.path))
+  const jobs = missing->copy()
+    ->mapnew((_, server) => async#job#start(server.install, {normalize: 'raw'}))
+  async#job#wait(jobs)
   # :call is required here because these functions from vim-lsp won't be
   # loaded yet when this file is parsed by Vim, so you get a "function not
   # found" error if you try to call them the short way.
-  call LspAddServer(lspServers)
+  call LspAddServer(lspServers->deepcopy()->filter((_, server) => executable(server.path)))
   call LspOptionsSet(lspOptions)
 }