6 files changed, 175 insertions, 0 deletions
diff --git a/lua/user/lsp/handlers.lua b/lua/user/lsp/handlers.lua
new file mode 100644
index 0000000..76b4572
--- /dev/null
+++ b/lua/user/lsp/handlers.lua
@@ -0,0 +1,104 @@
+local M = {}
+
+-- TODO: backfill this to template
+M.setup = function()
+    local signs = {
+        { name = "DiagnosticSignError", text = "" },
+        { name = "DiagnosticSignWarn", text = "" },
+        { name = "DiagnosticSignHint", text = "" },
+        { name = "DiagnosticSignInfo", text = "" },
+    }
+
+    for _, sign in ipairs(signs) do
+        vim.fn.sign_define(sign.name, { texthl = sign.name, text = sign.text, numhl = "" })
+    end
+
+    local config = {
+        -- disable virtual text
+        virtual_text = false,
+        -- show signs
+        signs = {
+            active = signs,
+        },
+        update_in_insert = true,
+        underline = true,
+        severity_sort = true,
+        float = {
+            focusable = false,
+            style = "minimal",
+            border = "rounded",
+            source = "always",
+            header = "",
+            prefix = "",
+        },
+    }
+
+    vim.diagnostic.config(config)
+
+    vim.lsp.handlers["textDocument/hover"] = vim.lsp.with(vim.lsp.handlers.hover, {
+        border = "rounded",
+    })
+
+    vim.lsp.handlers["textDocument/signatureHelp"] = vim.lsp.with(vim.lsp.handlers.signature_help, {
+        border = "rounded",
+    })
+end
+
+local function lsp_highlight_document(client)
+    -- Set autocommands conditional on server_capabilities
+    if client.resolved_capabilities.document_highlight then
+        vim.api.nvim_exec(
+            [[
+            augroup lsp_document_highlight
+                autocmd! * <buffer>
+                autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
+                autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
+            augroup END
+        ]],
+            false
+        )
+    end
+end
+
+local function lsp_keymaps(bufnr)
+    local opts = { noremap = true, silent = true }
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "gD", "<cmd>lua vim.lsp.buf.declaration()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "gd", "<cmd>lua vim.lsp.buf.definition()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "K", "<cmd>lua vim.lsp.buf.hover()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "gi", "<cmd>lua vim.lsp.buf.implementation()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "<C-k>", "<cmd>lua vim.lsp.buf.signature_help()<CR>", opts)
+    -- vim.api.nvim_buf_set_keymap(bufnr, "n", "<leader>rn", "<cmd>lua vim.lsp.buf.rename()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "gr", "<cmd>lua vim.lsp.buf.references()<CR>", opts)
+    -- vim.api.nvim_buf_set_keymap(bufnr, "n", "<leader>ca", "<cmd>lua vim.lsp.buf.code_action()<CR>", opts)
+    -- vim.api.nvim_buf_set_keymap(bufnr, "n", "<leader>f", "<cmd>lua vim.diagnostic.open_float()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "[d", '<cmd>lua vim.diagnostic.goto_prev({ border = "rounded" })<CR>', opts)
+    vim.api.nvim_buf_set_keymap(
+        bufnr,
+        "n",
+        "gl",
+        '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics({ border = "rounded" })<CR>',
+        opts
+    )
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "]d", '<cmd>lua vim.diagnostic.goto_next({ border = "rounded" })<CR>', opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "<leader>q", "<cmd>lua vim.diagnostic.setloclist()<CR>", opts)
+    vim.cmd [[ command! Format execute 'lua vim.lsp.buf.formatting()' ]]
+end
+
+M.on_attach = function(client, bufnr)
+    if client.name == "tsserver" then
+        client.resolved_capabilities.document_formatting = false
+    end
+    lsp_keymaps(bufnr)
+    lsp_highlight_document(client)
+end
+
+local capabilities = vim.lsp.protocol.make_client_capabilities()
+
+local status_ok, cmp_nvim_lsp = pcall(require, "cmp_nvim_lsp")
+if not status_ok then
+    return
+end
+
+M.capabilities = cmp_nvim_lsp.update_capabilities(capabilities)
+
+return M
diff --git a/lua/user/lsp/init.lua b/lua/user/lsp/init.lua
new file mode 100644
index 0000000..c218647
--- /dev/null
+++ b/lua/user/lsp/init.lua
@@ -0,0 +1,9 @@
+local status_ok, _ = pcall(require, "lspconfig")
+if not status_ok then
+    return
+end
+
+require "user.lsp.lsp-installer"
+require("user.lsp.handlers").setup()
+
+require "user.lsp.settings.ccls"
diff --git a/lua/user/lsp/lsp-installer.lua b/lua/user/lsp/lsp-installer.lua
new file mode 100644
index 0000000..18490ce
--- /dev/null
+++ b/lua/user/lsp/lsp-installer.lua
@@ -0,0 +1,28 @@
+local status_ok, lsp_installer = pcall(require, "nvim-lsp-installer")
+if not status_ok then
+    return
+end
+
+-- Register a handler that will be called for all installed servers.
+-- Alternatively, you may also register handlers on specific server instances instead (see example below).
+lsp_installer.on_server_ready(function(server)
+    local opts = {
+        on_attach = require("user.lsp.handlers").on_attach,
+        capabilities = require("user.lsp.handlers").capabilities,
+    }
+
+    if server.name == "bashls" then
+        local bashls_opts = require("user.lsp.settings.bashls")
+        opts = vim.tbl_deep_extend("force", bashls_opts, opts)
+    end
+
+    if server.name == "texlab" then
+        local texlab_opts = require("user.lsp.settings.texlab")
+        opts = vim.tbl_deep_extend("force", texlab_opts, opts)
+    end
+
+
+    -- This setup() function is exactly the same as lspconfig's setup function.
+    -- Refer to https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md
+    server:setup(opts)
+end)
diff --git a/lua/user/lsp/settings/bashls.lua b/lua/user/lsp/settings/bashls.lua
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/lua/user/lsp/settings/bashls.lua
diff --git a/lua/user/lsp/settings/ccls.lua b/lua/user/lsp/settings/ccls.lua
new file mode 100644
index 0000000..d663f7c
--- /dev/null
+++ b/lua/user/lsp/settings/ccls.lua
@@ -0,0 +1,34 @@
+local status, lspconfig = pcall(require, "lspconfig")
+if not status then
+    return
+end
+
+
+vim.notify(vim.fn.expand('%:p'));
+local extraArgs_opt = {};
+
+if string.match(vim.fn.expand('%:p'),"/home/aleksa/mygit/mykernel/") then
+    extraArgs_opt = { "--sysroot=/home/aleksa/mygit/mykernel/sysroot", "--gcc-toolchain=/usr/bin/i686-elf-gcc", "-ffreestanding", "-nobuiltininc"};
+else
+end
+
+
+lspconfig.ccls.setup {
+    on_attach = on_attach,
+    flags = {
+        debounce_text_changes = 150,
+    };
+    init_options = {
+    compilationDatabaseDirectory = "build";
+    cache = {
+       directory = "/tmp/ccls-cache";
+    };
+    index = {
+        threads = 0;
+    };
+    clang = {
+        excludeArgs = { "-frounding-math"};
+        extraArgs = extraArgs_opt;
+        }
+    };
+}
diff --git a/lua/user/lsp/settings/texlab.lua b/lua/user/lsp/settings/texlab.lua
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/lua/user/lsp/settings/texlab.lua