From 9ad923900317a45d216e62626c6ef32672771ee6 Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Fri, 3 Dec 2021 07:57:20 +0000
Subject: Using nvim-metals

---
 init.vim      |  7 +++++++
 lsc-local.vim | 22 ----------------------
 lsc.vim       | 21 +++++++++++++++++++++
 metals.vim    | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 vimrc         |  1 +
 5 files changed, 86 insertions(+), 22 deletions(-)
 delete mode 100644 lsc-local.vim
 create mode 100644 lsc.vim
 create mode 100644 metals.vim

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-local.vim
deleted file mode 100644
index 3b614ce..0000000
--- a/lsc-local.vim
+++ /dev/null
@@ -1,22 +0,0 @@
-"
-" Exampke of local configuration
-"
-let g:lsc_server_commands = {
- \ 'python': {
- \     'command': 'pyls',
- \     'message_hooks': {
- \         'initialize': {
- \             'initializationOptions': {
- \                 "pyls.plugins.pydocstyle.enabled": 1,
- \                 "pyls.plugins.epyls_mypy.enabled": 1,
- \                 "pyls.plugins.epyls_mypy.live_mode": 0
- \             }
- \         }
- \     }
- \  },
- \ 'scala' : 'metals-vim',
- \ 'haskell' : 'haskell-language-server-wrapper --lsp'
- \ }
-
-" for mill build.sc
-autocmd BufNewFile,BufRead *.sc set filetype=scala
diff --git a/lsc.vim b/lsc.vim
new file mode 100644
index 0000000..9b5d9c7
--- /dev/null
+++ b/lsc.vim
@@ -0,0 +1,21 @@
+" vim-lsc configuation
+"
+let g:lsc_server_commands = {
+ \ 'python': {
+ \     'command': 'pyls',
+ \     'message_hooks': {
+ \         'initialize': {
+ \             'initializationOptions': {
+ \                 "pyls.plugins.pydocstyle.enabled": 1,
+ \                 "pyls.plugins.epyls_mypy.enabled": 1,
+ \                 "pyls.plugins.epyls_mypy.live_mode": 0
+ \             }
+ \         }
+ \     }
+ \  },
+ \ 'haskell' : 'haskell-language-server-wrapper --lsp'
+ \ }
+
+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
 
-- 
cgit v1.2.3