3 files changed, 274 insertions, 0 deletions
diff --git a/lua/ben/plugins/lsp/lspconfig.lua b/lua/ben/plugins/lsp/lspconfig.lua
new file mode 100644
index 0000000..618a0ab
--- /dev/null
+++ b/lua/ben/plugins/lsp/lspconfig.lua
@@ -0,0 +1,161 @@
+return {
+  "neovim/nvim-lspconfig",
+  event = { "BufReadPre", "BufNewFile" },
+  dependencies = {
+    "hrsh7th/cmp-nvim-lsp",
+    { "antosha417/nvim-lsp-file-operations", config = true },
+  },
+  config = function()
+    -- import lspconfig plugin
+    local lspconfig = require("lspconfig")
+
+    -- import cmp-nvim-lsp plugin
+    local cmp_nvim_lsp = require("cmp_nvim_lsp")
+
+    local keymap = vim.keymap -- for conciseness
+
+    local opts = { noremap = true, silent = true }
+    local on_attach = function(client, bufnr)
+      opts.buffer = bufnr
+
+      -- set keybinds
+      opts.desc = "Show LSP references"
+      keymap.set("n", "gR", "<cmd>Telescope lsp_references<CR>", opts) -- show definition, references
+
+      opts.desc = "Go to declaration"
+      keymap.set("n", "gD", vim.lsp.buf.declaration, opts) -- go to declaration
+
+      opts.desc = "Show LSP definitions"
+      keymap.set("n", "gd", "<cmd>Telescope lsp_definitions<CR>", opts) -- show lsp definitions
+
+      opts.desc = "Show LSP implementations"
+      keymap.set("n", "gi", "<cmd>Telescope lsp_implementations<CR>", opts) -- show lsp implementations
+
+      opts.desc = "Show LSP type definitions"
+      keymap.set("n", "gt", "<cmd>Telescope lsp_type_definitions<CR>", opts) -- show lsp type definitions
+
+      opts.desc = "See available code actions"
+      keymap.set({ "n", "v" }, "<leader>ca", vim.lsp.buf.code_action, opts) -- see available code actions, in visual mode will apply to selection
+
+      opts.desc = "Smart rename"
+      keymap.set("n", "<leader>rn", vim.lsp.buf.rename, opts) -- smart rename
+
+      opts.desc = "Show buffer diagnostics"
+      keymap.set("n", "<leader>D", "<cmd>Telescope diagnostics bufnr=0<CR>", opts) -- show  diagnostics for file
+
+      opts.desc = "Show line diagnostics"
+      keymap.set("n", "<leader>d", vim.diagnostic.open_float, opts) -- show diagnostics for line
+
+      opts.desc = "Go to previous diagnostic"
+      keymap.set("n", "[d", vim.diagnostic.goto_prev, opts) -- jump to previous diagnostic in buffer
+
+      opts.desc = "Go to next diagnostic"
+      keymap.set("n", "]d", vim.diagnostic.goto_next, opts) -- jump to next diagnostic in buffer
+
+      opts.desc = "Show documentation for what is under cursor"
+      keymap.set("n", "K", vim.lsp.buf.hover, opts) -- show documentation for what is under cursor
+
+      opts.desc = "Restart LSP"
+      keymap.set("n", "<leader>rs", ":LspRestart<CR>", opts) -- mapping to restart lsp if necessary
+    end
+
+    -- used to enable autocompletion (assign to every lsp server config)
+    local capabilities = cmp_nvim_lsp.default_capabilities()
+
+    -- Change the Diagnostic symbols in the sign column (gutter)
+    -- (not in youtube nvim video)
+    local signs = { Error = " ", Warn = " ", Hint = "󰠠 ", Info = " " }
+    for type, icon in pairs(signs) do
+      local hl = "DiagnosticSign" .. type
+      vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = "" })
+    end
+
+    -- configure html server
+    lspconfig["html"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+    })
+
+    -- configure typescript server with plugin
+    lspconfig["tsserver"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+    })
+
+    -- configure css server
+    lspconfig["cssls"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+    })
+
+    -- configure tailwindcss server
+    lspconfig["tailwindcss"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+    })
+
+    -- configure svelte server
+    lspconfig["svelte"].setup({
+      capabilities = capabilities,
+      on_attach = function(client, bufnr)
+        on_attach(client, bufnr)
+
+        vim.api.nvim_create_autocmd("BufWritePost", {
+          pattern = { "*.js", "*.ts" },
+          callback = function(ctx)
+            if client.name == "svelte" then
+              client.notify("$/onDidChangeTsOrJsFile", { uri = ctx.file })
+            end
+          end,
+        })
+      end,
+    })
+
+    -- configure prisma orm server
+    lspconfig["prismals"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+    })
+
+    -- configure graphql language server
+    lspconfig["graphql"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+      filetypes = { "graphql", "gql", "svelte", "typescriptreact", "javascriptreact" },
+    })
+
+    -- configure emmet language server
+    lspconfig["emmet_ls"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+      filetypes = { "html", "typescriptreact", "javascriptreact", "css", "sass", "scss", "less", "svelte" },
+    })
+
+    -- configure python server
+    lspconfig["pyright"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+    })
+
+    -- configure lua server (with special settings)
+    lspconfig["lua_ls"].setup({
+      capabilities = capabilities,
+      on_attach = on_attach,
+      settings = { -- custom settings for lua
+        Lua = {
+          -- make the language server recognize "vim" global
+          diagnostics = {
+            globals = { "vim" },
+          },
+          workspace = {
+            -- make language server aware of runtime files
+            library = {
+              [vim.fn.expand("$VIMRUNTIME/lua")] = true,
+              [vim.fn.stdpath("config") .. "/lua"] = true,
+            },
+          },
+        },
+      },
+    })
+  end,
+}
diff --git a/lua/ben/plugins/lsp/mason.lua b/lua/ben/plugins/lsp/mason.lua
new file mode 100644
index 0000000..c1a3c10
--- /dev/null
+++ b/lua/ben/plugins/lsp/mason.lua
@@ -0,0 +1,57 @@
+return {
+  "williamboman/mason.nvim",
+  dependencies = {
+    "williamboman/mason-lspconfig.nvim",
+    "jayp0521/mason-null-ls.nvim",
+  },
+  config = function()
+    -- import mason
+    local mason = require("mason")
+
+    -- import mason-lspconfig
+    local mason_lspconfig = require("mason-lspconfig")
+
+    -- import mason-null-ls
+    local mason_null_ls = require("mason-null-ls")
+
+    -- enable mason and configure icons
+    mason.setup({
+      ui = {
+        icons = {
+            package_installed = "✓",
+            package_pending = "➜",
+            package_uninstalled = "✗"
+        }
+      }
+    })
+
+    mason_lspconfig.setup({
+      -- list of servers for mason to install
+      ensure_installed = {
+        "tsserver",
+        "html",
+        "cssls",
+        "tailwindcss",
+        "svelte",
+        "lua_ls",
+        "graphql",
+        "emmet_ls",
+        "prismals",
+        "pyright"
+      },
+      -- auto-install configured servers (with lspconfig)
+      automatic_installation = true, -- not the same as ensure_installed
+    })
+
+    mason_null_ls.setup({
+      -- list of formatters & linters for mason to install
+      ensure_installed = {
+        "prettier", -- ts/js formatter
+        "stylua", -- lua formatter
+        "eslint_d", -- ts/js linter
+      },
+      -- auto-install configured servers (with lspconfig)
+      automatic_installation = true,
+    })
+  end,
+}
diff --git a/lua/ben/plugins/lsp/null-ls.lua b/lua/ben/plugins/lsp/null-ls.lua
new file mode 100644
index 0000000..9db49cc
--- /dev/null
+++ b/lua/ben/plugins/lsp/null-ls.lua
@@ -0,0 +1,56 @@
+return {
+  "jose-elias-alvarez/null-ls.nvim", -- configure formatters & linters
+  event = { "BufReadPre", "BufNewFile" },
+  config = function()
+    -- import null-ls plugin
+    local null_ls = require("null-ls")
+
+    local null_ls_utils = require("null-ls.utils")
+
+    -- for conciseness
+    local formatting = null_ls.builtins.formatting -- to setup formatters
+    local diagnostics = null_ls.builtins.diagnostics -- to setup linters
+
+    -- to setup format on save
+    local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+
+    -- configure null_ls
+    null_ls.setup({
+      -- add package.json as identifier for root (for typescript monorepos)
+      root_dir = null_ls_utils.root_pattern(".null-ls-root", "Makefile", ".git", "package.json"),
+      -- setup formatters & linters
+      sources = {
+        --  to disable file types use
+        --  "formatting.prettier.with({disabled_filetypes: {}})" (see null-ls docs)
+        formatting.prettier.with({
+          extra_filetypes = { "svelte" },
+        }), -- js/ts formatter
+        formatting.stylua, -- lua formatter
+        diagnostics.eslint_d.with({ -- js/ts linter
+          condition = function(utils)
+            return utils.root_has_file({ ".eslintrc.js", ".eslintrc.cjs" }) -- only enable if root has .eslintrc.js or .eslintrc.cjs
+          end,
+        }),
+      },
+      -- configure format on save
+      on_attach = function(current_client, bufnr)
+        if current_client.supports_method("textDocument/formatting") then
+          vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+          vim.api.nvim_create_autocmd("BufWritePre", {
+            group = augroup,
+            buffer = bufnr,
+            callback = function()
+              vim.lsp.buf.format({
+                filter = function(client)
+                  --  only use null-ls for formatting instead of lsp server
+                  return client.name == "null-ls"
+                end,
+                bufnr = bufnr,
+              })
+            end,
+          })
+        end
+      end,
+    })
+  end,
+}