refactor(nvim): make asm files write to .target directory on compile

dots/.config/nvim/after/ftplugin/asm.lua

@@ -1,20 +1,30 @@
 vim.opt_local.commentstring = "# %s"
 
 vim.keymap.set("n", "<leader>fr", function()
-    local curr_file = vim.fn.expand("%:p")
-    vim.fn.expand("%:p")
-    local curr_dir = vim.fn.expand("%:p:h")
-    vim.fn.expand("%:p")
-    require("toggleterm").exec(
-        string.format(
-            "as %s -o %s/obj.o && ld %s/obj.o -o %s/out && %s/out",
-            curr_file,
-            curr_dir,
-            curr_dir,
-            curr_dir,
-            curr_dir
-        )
-    )
+    local curr_file = vim.api.nvim_buf_get_name(0)
+    local curr_dir = vim.fn.fnamemodify(curr_file, ":h")
+    local fname = vim.fn.fnamemodify(curr_file, ":t:r")
+
+    local target_dir = curr_dir .. "/.target"
+    local object_path = target_dir .. "/obj.o"
+    local executable_path = target_dir .. "/" .. fname
+
+    vim.fn.mkdir(target_dir, "p")
+
+    local cmd = {
+        "as",
+        curr_file,
+        "-o",
+        object_path,
+        "&& \n",
+        "ld",
+        object_path,
+        "-o",
+        executable_path,
+        "&& \n",
+        executable_path
+    }
+    require("toggleterm").exec(table.concat(cmd, " "))
 end, {
     buffer = true,
 })