[nvim] add perfanno

.config/nvim/fnl/config/packer.fnl

@@ -122,6 +122,8 @@
 
   ;; profiling
   (use! :stevearc/profile.nvim)
+  (use! :t-troebst/perfanno.nvim
+        :config #(setup :perfanno))
 
   ; Interface
   (use! :projekt0n/github-nvim-theme)

.config/nvim/fnl/profiling.lua

@@ -0,0 +1,25 @@
+local should_profile = os.getenv("NVIM_PROFILE")
+if should_profile then
+  require("profile").instrument_autocmds()
+  if should_profile:lower():match("^start") then
+    require("profile").start("*")
+  else
+    require("profile").instrument("*")
+  end
+end
+
+local function toggle_profile()
+  local prof = require("profile")
+  if prof.is_recording() then
+    prof.stop()
+    vim.ui.input({ prompt = "Save profile to:", completion = "file", default = "profile.json" }, function(filename)
+      if filename then
+        prof.export(filename)
+        vim.notify(string.format("Wrote %s", filename))
+      end
+    end)
+  else
+    prof.start("*")
+  end
+end
+vim.keymap.set("", "<f1>", toggle_profile)