Switch to CoC for language servers.

nvim/.config/nvim/coc-settings.json

@@ -1,19 +1,41 @@
 {
     "languageserver": {
+        "haskell": {
+            "command": "hie-wrapper",
+            "args": ["--lsp"],
+            "filetypes": [ "haskell" ],
+            "rootPatterns": [ ".git", "stack.yaml" ]
+        },
+        "rust": {
+            "command": "rustup",
+            "args": ["run", "stable", "rls" ],
+            "filetypes": [ "rust" ],
+            "rootPatterns": [ ".git", "cargo.toml" ]
+        },
         "clangd": {
             "command": "clangd",
             "filetypes": [ "c", "cpp" ],
-            "rootPatterns": ["compile_flags.txt", "compile_commands.json" ]
+            "rootPatterns": [".git"]
         },
-        "haskell": {
-            "command": "hie-wrapper",
-            "filetypes": ["haskell"],
-            "rootPatterns": [".stack.yaml", "cabal.config", "package.yaml"]
-	},
-        "scry": {
+        "crystal": {
             "command": "scry",
             "filetypes": [ "crystal" ],
-            "rootPatterns": ["shard.yml"]
+            "rootPatterns": [".git", "shard.yml"]
+        },
+        "javascript": {
+            "command": "javascript-typescript-stdio",
+            "filetypes": [ "javascript" ],
+            "rootPatterns": [".git" ]
+        },
+        "elm": {
+            "command": "elm-language-server",
+            "args": ["--stdio"],
+            "filetypes": ["elm"],
+            "rootPatterns": [".git", "elm.json"],
+            "initializationOptions": {
+                "runtime": "node",
+                "elmPath": "elm"
+            }
         }
     }
 }

nvim/.config/nvim/init.vim

@@ -1,7 +1,5 @@
 call plug#begin('~/.config/nvim/plugged')
-Plug 'roxma/nvim-yarp'
-Plug 'ncm2/ncm2'
-Plug 'autozimu/LanguageClient-neovim', {'branch': 'next', 'do': 'bash install.sh' }
+Plug 'neoclide/coc.nvim', {'branch': 'release'}
 Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --bin' }
 Plug 'junegunn/fzf.vim'
 
@@ -23,29 +21,7 @@ set number " Set line numbers
 set mouse=a " Allow mouse
 set signcolumn=yes " Always show extra column
 
-autocmd BufEnter * call ncm2#enable_for_buffer() " Enable ncm2 for all buffers
 autocmd BufRead,BufNewFile *.v set filetype=coq " Coq is not Verilog
 autocmd FileType crystal setlocal shiftwidth=2 " Crystal likes 2-wide indent
 
-set completeopt=noinsert,menuone
-
-let g:LanguageClient_serverCommands = {
-            \ 'haskell': ['hie', '--lsp'],
-            \ 'rust': ['rustup', 'run', 'stable', 'rls'],
-            \ 'c': ['clangd'],
-            \ 'crystal': ['scry'],
-            \ 'cpp': ['clangd'],
-            \ 'javascript': ['javascript-typescript-stdio'],
-            \ 'elm': ['elm-language-server', '--stdio']
-            \ }
-let g:deoplete#enable_at_startup = 1
-let g:LanguageClient_diagnosticsDisplay = {
-            \ 1: {"name": "Error","texthl": "ALEError","signText": ">>","signTexthl": "ALEErrorSign",},
-            \ 2: {"name": "Warning","texthl": "ALEWarning","signText": ">>","signTexthl": "ALEWarningSign",},
-            \ 3: {"name": "Information","texthl": "ALEInfo","signText": ">>","signTexthl": "ALEInfoSign",},
-            \ 4: {"name": "Hint","texthl": "ALEInfo","signText": ">>","signTexthl": "ALEInfoSign",},}
-let g:LanguageClient_rootMarkers = {
-            \ 'haskell': ['.git'],
-            \ 'elm': ['elm.json'],
-            \ }
 colorscheme nord