Rewrote init.vim, added lsp things for elixir

config/nvim/init.vim

@@ -1,12 +1,34 @@
 " Load plugins
 call plug#begin()
 
+" CodeStats and Airline
+Plug 'https://gitlab.com/code-stats/code-stats-vim.git'
+Plug 'vim-airline/vim-airline'
+
+" Syntax highlighters
+Plug 'tikhomirov/vim-glsl'
+
+" Treesitter things
 Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
-Plug 'https://gitlab.com/code-stats/code-stats-vim.git', {'do': ':TSUpdate'}
-Plug 'vim-airline/vim-airline', {'do': ':TSUpdate'}
+
+" Language server protocol
+Plug 'neovim/nvim-lspconfig'
+
+" Autocompletion shenanigans
+Plug 'hrsh7th/cmp-nvim-lsp'
+Plug 'hrsh7th/cmp-buffer'
+Plug 'hrsh7th/cmp-path'
+Plug 'hrsh7th/cmp-cmdline'
+Plug 'hrsh7th/nvim-cmp'
+Plug 'hrsh7th/cmp-vsnip'
+Plug 'hrsh7th/vim-vsnip'
+Plug 'petertriho/cmp-git'
 
 call plug#end()
 
+" Set custom glsl extensions
+autocmd! BufNewFile,BufRead *.effect set ft=glsl
+
 " Python plugins, needed for CodeStats
 let g:python3_host_prog = '/usr/bin/python'
 
@@ -20,7 +42,7 @@ set laststatus=2
 set t_Co=256
 
 lua <<EOF
-require 'nvim-treesitter.configs'.setup {
+  require'nvim-treesitter.configs'.setup {
     ensure_installed = {
       "bash", "vim", "regex",
       "cpp", "go", "rust",
@@ -35,23 +57,83 @@ require 'nvim-treesitter.configs'.setup {
       "json", "json5", "jq",
       "lua", "php", "phpdoc",
       "markdown", "markdown_inline",
-	"rst", "yaml",
+      "rst", "yaml"
     },
     highlight = {
-    enable = true
+      enable = true,
+    }
   }
-}
 
-local parser_config = require'nvim-treesitter.parsers'.get_parser_configs()
-parser_config.dfraw = {
+  -- Parser config for dfraw language
+  local parser_config = require'nvim-treesitter.parsers'.get_parser_configs()
+  parser_config.dfraw = {
     install_info = {
       url = 'https://code.criminallycute.fi/mirrors/tree-sitter-dfraw',
-    files = { 'src/parser.c' },
-	  branch = 'main'
+      files = {'src/parser.c'},
+      branch = 'main',
     },
     filetype = 'text',
-  used_by = { 'dfraw' }
-}
+    used_by = {'dfraw'},
+  }
+
+  -- Autocompletion shenanigans
+  local cmp = require'cmp'
+
+  cmp.setup({
+    snippet = {
+      expand = function(args)
+        vim.fn["vsnip#anonymous"](args.body)
+      end,
+    },
+    window = {
+      completion = cmp.config.window.bordered(),
+      documentation = cmp.config.window.bordered(),
+    },
+    mapping = cmp.mapping.preset.insert({
+      ['<C-b>'] = cmp.mapping.scroll_docs(-4),
+      ['<C-f>'] = cmp.mapping.scroll_docs(4),
+      ['<C-Space>'] = cmp.mapping.complete(),
+      ['<C-e>'] = cmp.mapping.abort(),
+      ['<CR>'] = cmp.mapping.confirm({ select = true }),
+    }),
+    sources = cmp.config.sources({
+      { name = 'nvim_lsp' },
+      { name = 'vsnip' },
+      { name = 'buffer' },
+    })
+  })
+
+  -- filetype specific setup
+  -- gitconfig
+  cmp.setup.filetype('gitcommit', {
+    sources = cmp.config.sources({
+      { name = 'git' },
+      { name = 'buffer' },
+    })
+  })
+
+  -- / andd ? completion
+  cmp.setup.cmdline({'/', '?'}, {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = { { name = 'buffer' } },
+  })
+
+  -- : completion
+  cmp.setup.cmdline(':', {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = {
+      { name = 'path' },
+      { name = 'cmdline' },
+    },
+    matching = { disallow_symbol_nonprefix_matching = false },
+  })
+
+  -- Elixir LSP configuration
+  local capabilities = require('cmp_nvim_lsp').default_capabilities()
+  require'lspconfig'.elixirls.setup {
+    capabilities = capabilities,
+    cmd = { '~/.local/share/lsp-servers/elixir-ls/language_server.sh' }
+  }
 EOF
 
 " disable dfraw for text files