Updated nvim configs for Rust & C++ autocompletion

1 files changed, 113 insertions, 36 deletions

diff --git a/init.vim b/init.vim
index b18e02e..055a99e 100755
--- a/init.vim
+++ b/init.vim
@@ -23,56 +23,133 @@ set ttyfast                 " Speed up scrolling in Vim
 " vim-plug -> 
 call plug#begin('~/.config/nvim/plugged')
 
+" Nvim LSP client
+Plug 'neovim/nvim-lspconfig'
+
 " Easy alignment
 Plug 'junegunn/vim-easy-align'
 xmap ga <Plug>(EasyAlign)
 nmap ga <Plug>(EasyAlign)
 
 " For Rust development
-Plug 'dense-analysis/ale'
-Plug 'rust-lang/rust.vim'
+Plug 'hrsh7th/nvim-cmp'         " Completion framework
+Plug 'hrsh7th/cmp-nvim-lsp'     " LSP completion source for nvim-cmp
+Plug 'hrsh7th/cmp-vsnip'        " Snippet completion source for nvim-cmp
+Plug 'hrsh7th/cmp-path'
+Plug 'hrsh7th/cmp-buffer'
+Plug 'simrat39/rust-tools.nvim' 
+Plug 'hrsh7th/vim-vsnip'
 
-" Collection of common configurations for the Nvim LSP client
-" Plug 'neovim/nvim-lspconfig'
+" For C++ development
+Plug 'jackguo380/vim-lsp-cxx-highlight'
 
-" Completion framework
-" Plug 'hrsh7th/nvim-cmp'
+" Fuzzy Finder
+Plug 'nvim-lua/popup.nvim'
+Plug 'nvim-lua/plenary.nvim'
+Plug 'nvim-telescope/telescope.nvim'
 
-" LSP completion source for nvim-cmp
-" Plug 'hrsh7th/cmp-nvim-lsp'
+" Unused 
+" Plug 'rust-lang/rust.vim'
+" Plug 'dense-analysis/ale'
 
-" Snippet completion source for nvim-cmp
-" Plug 'hrsh7th/cmp-vsnip'
+call plug#end()
+" <- vim-plug 
 
-" Other usefull completion sources
-" Plug 'hrsh7th/cmp-path'
-" Plug 'hrsh7th/cmp-buffer'
+" :help completeopt
+set completeopt=menu,menuone,longest,noselect
 
-" See hrsh7th's other plugins for more completion sources!
+set shortmess+=c
+set signcolumn=yes
 
-" To enable more of the features of rust-analyzer, such as inlay hints and more!
-" Plug 'simrat39/rust-tools.nvim'
+" Configure LSP through rust-tools.nvim plugin.
+" rust-tools will configure and enable certain LSP features for us.
+" See https://github.com/simrat39/rust-tools.nvim#configuration
+lua <<EOF
+local nvim_lsp = require'lspconfig'
 
-" Snippet engine
-" Plug 'hrsh7th/vim-vsnip'
+local lspconfig = require'lspconfig'
+lspconfig.ccls.setup {
+  init_options = {
+    compilationDatabaseDirectory = "build";
+    index = {
+      threads = 0;
+    };
+    highlight = {
+        lsRanges = true;
+    };
+    clang = {
+      excludeArgs = { "-frounding-math"} ;
+    };
+  }
+}
+require'lspconfig'.ccls.setup{}
 
-" Fuzzy finder
-" Optional
-" Plug 'nvim-lua/popup.nvim'
-" Plug 'nvim-lua/plenary.nvim'
-" Plug 'nvim-telescope/telescope.nvim'
+local opts = {
+    tools = { -- rust-tools options
+        autoSetHints = true,
+        hover_with_actions = true,
+        inlay_hints = {
+            show_parameter_hints = true,
+            parameter_hints_prefix = "",
+            other_hints_prefix = "",
+        },
+    },
 
-call plug#end()
+    -- all the opts to send to nvim-lspconfig
+    -- these override the defaults set by rust-tools.nvim
+    -- see https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#rust_analyzer
+    server = {
+        -- on_attach is a callback called when the language server attachs to the buffer
+        -- on_attach = on_attach,
+        settings = {
+            -- to enable rust-analyzer settings visit:
+            -- https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/user/generated_config.adoc
+            ["rust-analyzer"] = {
+                -- enable clippy on save
+                checkOnSave = {
+                    command = "clippy"
+                },
+            }
+        }
+    },
+}
 
-" Set completeopt to have a better completion experience
-" :help completeopt
-" menuone: popup even when there's only one match
-" noinsert: Do not insert text until a selection is made
-" noselect: Do not select, force user to select one from the menu
-let g:ale_linters = { 'rust': ['analyzer'] }
-let g:ale_fixers = { 'rust': ['rustfmt', 'trim_whitespace', 'remove_trailing_lines'] }
-set completeopt=menu,menuone,preview,noselect,noinsert
-let g:ale_completion_enabled = 1
-
-" Avoid showing extra messages when using completion
-" set shortmess+=c
+require('rust-tools').setup(opts)
+EOF
+
+" Setup Completion
+" See https://github.com/hrsh7th/nvim-cmp#basic-configuration
+lua <<EOF
+local cmp = require'cmp'
+cmp.setup({
+  -- Enable LSP snippets
+  snippet = {
+    expand = function(args)
+        vim.fn["vsnip#anonymous"](args.body)
+    end,
+  },
+  mapping = {
+    ['<C-p>'] = cmp.mapping.select_prev_item(),
+    ['<C-n>'] = cmp.mapping.select_next_item(),
+    -- Add tab support
+    ['<S-Tab>'] = cmp.mapping.select_prev_item(),
+    ['<Tab>'] = cmp.mapping.select_next_item(),
+    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+    ['<C-f>'] = cmp.mapping.scroll_docs(4),
+    ['<C-Space>'] = cmp.mapping.complete(),
+    ['<C-e>'] = cmp.mapping.close(),
+    ['<CR>'] = cmp.mapping.confirm({
+      behavior = cmp.ConfirmBehavior.Insert,
+      select = true,
+    })
+  },
+
+  -- Installed sources
+  sources = {
+    { name = 'nvim_lsp' },
+    { name = 'vsnip' },
+    { name = 'path' },
+    { name = 'buffer' },
+  },
+})
+EOF