Added readme and a lot of rust config

nvim/.config/nvim/init.vim

@@ -13,9 +13,6 @@ Plug 'google/vim-glaive'
 " Go development
 Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
 
-" Better python syntax
-Plug 'vim-python/python-syntax'
-
 " Formatter for Python
 Plug 'psf/black'
 
@@ -32,6 +29,20 @@ Plug 'SirVer/ultisnips'
 Plug 'lervag/vimtex'
 Plug 'xuhdev/vim-latex-live-preview', { 'for': 'tex' }
 
+" LSP Config
+Plug 'neovim/nvim-lspconfig'
+Plug 'nvim-lua/lsp_extensions.nvim'
+Plug 'hrsh7th/cmp-nvim-lsp', {'branch': 'main'}
+Plug 'hrsh7th/cmp-buffer', {'branch': 'main'}
+Plug 'hrsh7th/cmp-path', {'branch': 'main'}
+Plug 'hrsh7th/nvim-cmp', {'branch': 'main'}
+Plug 'ray-x/lsp_signature.nvim'
+
+" More syntax
+Plug 'rust-lang/rust.vim'
+Plug 'plasticboy/vim-markdown'
+Plug 'vim-python/python-syntax'
+
 call plug#end()
 
 set autowrite
@@ -70,6 +81,118 @@ let g:python_highlight_all = 1
 let g:vimtex_view_method = 'zathura'
 let g:vimtex_quickfix_mode=0
 
+" LSP configuration
+lua << END
+local cmp = require'cmp'
+
+local lspconfig = require'lspconfig'
+cmp.setup({
+  snippet = {
+    -- REQUIRED by nvim-cmp. get rid of it once we can
+    expand = function(args)
+      vim.fn["vsnip#anonymous"](args.body)
+    end,
+  },
+  mapping = {
+    -- Tab immediately completes. C-n/C-p to select.
+    ['<Tab>'] = cmp.mapping.confirm({ select = true })
+  },
+  sources = cmp.config.sources({
+    -- TODO: currently snippets from lsp end up getting prioritized -- stop that!
+    { name = 'nvim_lsp' },
+  }, {
+    { name = 'path' },
+  }),
+  experimental = {
+    ghost_text = true,
+  },
+})
+
+-- Enable completing paths in :
+cmp.setup.cmdline(':', {
+  sources = cmp.config.sources({
+    { name = 'path' }
+  })
+})
+
+-- Setup lspconfig.
+local on_attach = function(client, bufnr)
+  local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
+  local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end
+
+  --Enable completion triggered by <c-x><c-o>
+  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')
+
+  -- Mappings.
+  local opts = { noremap=true, silent=true }
+
+  -- See `:help vim.lsp.*` for documentation on any of the below functions
+  buf_set_keymap('n', 'gD', '<Cmd>lua vim.lsp.buf.declaration()<CR>', opts)
+  buf_set_keymap('n', 'gd', '<Cmd>lua vim.lsp.buf.definition()<CR>', opts)
+  buf_set_keymap('n', 'K', '<Cmd>lua vim.lsp.buf.hover()<CR>', opts)
+  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
+  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
+  buf_set_keymap('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
+  buf_set_keymap('n', '<space>r', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
+  buf_set_keymap('n', '<space>a', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
+  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
+  buf_set_keymap('n', '<space>e', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
+  buf_set_keymap('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<CR>', opts)
+  buf_set_keymap('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<CR>', opts)
+  buf_set_keymap('n', '<space>q', '<cmd>lua vim.diagnostic.set_loclist()<CR>', opts)
+  buf_set_keymap("n", "<space>f", "<cmd>lua vim.lsp.buf.formatting()<CR>", opts)
+
+  -- Get signatures (and _only_ signatures) when in argument lists.
+  require "lsp_signature".on_attach({
+    doc_lines = 0,
+    handler_opts = {
+      border = "none"
+    },
+  })
+end
+
+local capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities())
+lspconfig.rust_analyzer.setup {
+  on_attach = on_attach,
+  flags = {
+    debounce_text_changes = 150,
+  },
+  settings = {
+    ["rust-analyzer"] = {
+      cargo = {
+        allFeatures = true,
+      },
+      completion = {
+	postfix = {
+	  enable = false,
+	},
+      },
+    },
+  },
+  capabilities = capabilities,
+}
+
+vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
+  vim.lsp.diagnostic.on_publish_diagnostics, {
+    virtual_text = true,
+    signs = true,
+    update_in_insert = true,
+  }
+)
+END
+
+let g:rustfmt_autosave = 1
+let g:rustfmt_emit_files = 1
+let g:rustfmt_fail_silently = 0
+
+set completeopt=menuone,noinsert,noselect
+
+" Proper search
+set incsearch
+set ignorecase
+set smartcase
+set gdefault
+
 set cc=80
 set tw=792034
 set background=dark