Using nvim-metals

4 files changed, 68 insertions, 4 deletions

diff --git a/init.vim b/init.vim
index 0115f46..69eee22 100644
--- a/init.vim
+++ b/init.vim
@@ -3,3 +3,10 @@ let &packpath = &runtimepath
 
 source ~/.vimrc
 
+" for LSC support
+"
+" general
+source ~/.vim/lsc.vim
+"
+" scala and metals
+source ~/.vim/metals.vim
diff --git a/lsc-local.vim b/lsc.vim
index 3b614ce..9b5d9c7 100644
--- a/lsc-local.vim
+++ b/lsc.vim
@@ -1,5 +1,4 @@
-"
-" Exampke of local configuration
+" vim-lsc configuation
 "
 let g:lsc_server_commands = {
  \ 'python': {
@@ -14,9 +13,9 @@ let g:lsc_server_commands = {
  \         }
  \     }
  \  },
- \ 'scala' : 'metals-vim',
  \ 'haskell' : 'haskell-language-server-wrapper --lsp'
  \ }
 
-" for mill build.sc
 autocmd BufNewFile,BufRead *.sc set filetype=scala
+
+
diff --git a/metals.vim b/metals.vim
new file mode 100644
index 0000000..ddb7aca
--- /dev/null
+++ b/metals.vim
@@ -0,0 +1,57 @@
+" nvim-lsp Mappings
+"
+nnoremap <silent> <C-]>       <cmd>lua vim.lsp.buf.definition()<CR>
+nnoremap <silent> K           <cmd>lua vim.lsp.buf.hover()<CR>
+nnoremap <silent> gi          <cmd>lua vim.lsp.buf.implementation()<CR>
+nnoremap <silent> gr          <cmd>lua vim.lsp.buf.references()<CR>
+nnoremap <silent> gds         <cmd>lua vim.lsp.buf.document_symbol()<CR>
+nnoremap <silent> gws         <cmd>lua vim.lsp.buf.workspace_symbol()<CR>
+nnoremap <silent> <leader>rn  <cmd>lua vim.lsp.buf.rename()<CR>
+nnoremap <silent> <leader>F   <cmd>lua vim.lsp.buf.formatting()<CR>
+nnoremap <silent> <leader>ca  <cmd>lua vim.lsp.buf.code_action()<CR>
+nnoremap <silent> <leader>ws  <cmd>lua require'metals'.worksheet_hover()<CR>
+nnoremap <silent> <leader>a   <cmd>lua require'metals'.open_all_diagnostics()<CR>
+nnoremap <silent> <space>d    <cmd>lua vim.lsp.diagnostic.set_loclist()<CR>
+nnoremap <silent> [c          <cmd>lua vim.lsp.diagnostic.goto_prev { wrap = false }<CR>
+nnoremap <silent> ]c          <cmd>lua vim.lsp.diagnostic.goto_next { wrap = false }<CR>
+
+" nvim-lsp Settings
+"
+" using latest stable
+" let g:metals_server_version = '0.9.8+10-334e402e-SNAPSHOT'
+
+" nvim-metals
+"
+:lua << EOF
+  metals_config = require'metals'.bare_config()
+  metals_config.settings = {
+     showImplicitArguments = true,
+     excludedPackages = {
+       "akka.actor.typed.javadsl",
+       "com.github.swagger.akka.javadsl"
+     }
+  }
+
+  metals_config.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
+    vim.lsp.diagnostic.on_publish_diagnostics, {
+      virtual_text = {
+        prefix = '',
+      }
+    }
+  )
+EOF
+
+if has('nvim-0.5')
+  augroup lsp
+    au!
+    au FileType scala,sbt lua require('metals').initialize_or_attach(metals_config)
+  augroup end
+endif
+
+" Helpful general settings
+"
+autocmd FileType scala setlocal omnifunc=v:lua.vim.lsp.omnifunc
+
+" Set completeopt to have a better completion experience
+set completeopt=menuone,noinsert,noselect
+
diff --git a/vimrc b/vimrc
index 23432af..8852748 100644
--- a/vimrc
+++ b/vimrc
@@ -68,6 +68,7 @@ Plug 'neovimhaskell/haskell-vim'
 if has('nvim-0.5')
     Plug 'nvim-lua/popup.nvim'
     Plug 'nvim-lua/plenary.nvim'
+    Plug 'scalameta/nvim-metals'
     Plug 'nvim-telescope/telescope.nvim'
 end