From cf973314650618fe7bc2ff6fab62ce41e62aca62 Mon Sep 17 00:00:00 2001
From: ViViDboarder <ViViDboarder@gmail.com>
Date: Mon, 10 Jan 2022 10:47:51 -0800
Subject: [PATCH] Add function for wrapping prefixed keymap groups

---
 neovim/lua/plugins/lsp.lua |  6 ++++++
 neovim/lua/utils.lua       | 13 +++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/neovim/lua/plugins/lsp.lua b/neovim/lua/plugins/lsp.lua
index a7d1de5..2224799 100644
--- a/neovim/lua/plugins/lsp.lua
+++ b/neovim/lua/plugins/lsp.lua
@@ -65,6 +65,12 @@ local function default_attach(client, bufnr)
     -- Mappings
     -- TODO: Maybe prefix all of these for easier discovery
     local opts = { noremap = true, silent = true }
+
+    local lsp_keymap = utils.keymap_group("n", "<leader>l", opts, bufnr)
+    lsp_keymap("h", "<cmd>lua vim.lsp.buf.hover()<CR>")
+    lsp_keymap("r", "<cmd>lua vim.lsp.buf.rename()<CR>")
+    lsp_keymap("e", "<cmd>lua vim.lsp.diagnostics.show_line_diagnostics()<CR>")
+
     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)
diff --git a/neovim/lua/utils.lua b/neovim/lua/utils.lua
index d043fd3..814c933 100644
--- a/neovim/lua/utils.lua
+++ b/neovim/lua/utils.lua
@@ -200,4 +200,17 @@ function M.map_version_rule(rules)
     return latest_value
 end
 
+function M.keymap_group(mode, prefix, opts, bufnr)
+    local map_fn = vim.api.nvim_set_keymap
+    if bufnr ~= nil then
+        map_fn = function(...)
+            return vim.api.nvim_buf_set_keymap(bufnr, ...)
+        end
+    end
+
+    return function(keys, rhs, new_opts)
+        map_fn(mode, prefix .. keys, rhs, new_opts or opts)
+    end
+end
+
 return M