From 070c3f0a7f77ca8fa6e76789c87993d1c2f099ed Mon Sep 17 00:00:00 2001
From: atagen <boss@atagen.co>
Date: Sun, 24 May 2026 19:52:50 +1000
Subject: [PATCH] add eval timer

---
 meat.nu | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/meat.nu b/meat.nu
index 533927f..a03a4bc 100644
--- a/meat.nu
+++ b/meat.nu
@@ -42,11 +42,11 @@ def nix-conf-attr []: nothing -> string {
   $"nixosConfigurations.(hn).config.environment.etc.\"nix/nix.conf\""
 }
 
-def nix-build-nom [out: string, source: string, attr: string, extras: list<string> = []] {
+def nix-build-nom [out: string, build_args: list<string>] {
   if ($env.MONITOR? | is-empty) {
-    ^nix-build --out-link $out $source -A $attr ...$extras
+    ^nix-build --out-link $out ...$build_args
   } else {
-    ^nix-build --log-format internal-json --out-link $out $source -A $attr ...$extras out+err>| ^$env.MONITOR --json
+    ^nix-build --log-format internal-json --out-link $out ...$build_args out+err>| ^$env.MONITOR --json
   }
   # Piping to MONITOR masks nix-build's exit code, so detect failure by the
   # absence of the out-link.
@@ -71,7 +71,10 @@ def do-build [extras: list<string> = []] {
   let tmpdir = ^mktemp -d -t "meat-build.XXXXXX" | str trim
   let build = $"($tmpdir)/build"
   warm-pins
-  nix-build-nom $build $"($env.MEATS)/entry.nix" (system-attr) $extras
+  let start = date now
+  let drv = ^nix-instantiate $"($env.MEATS)/entry.nix" -A (system-attr) ...$extras | lines | last | str trim
+  meat-print $"MASTICATION TAKING ((date now) - $start)"
+  nix-build-nom $build [$drv]
   differ-step $build
   activate $build
   try { rm $build }
@@ -393,10 +396,10 @@ def cmd-ritual [] {
     let build = $"($tmpdir)/build"
     try {
       warm-pins
-      nix-build-nom $nix_conf $"($meats)/entry.nix" (nix-conf-attr)
+      nix-build-nom $nix_conf [$"($meats)/entry.nix" "-A" (nix-conf-attr)]
       meat-print "CONSUMING MEATS.."
       with-env { NIX_USER_CONF_FILES: $nix_conf } {
-        nix-build-nom $build $"($meats)/entry.nix" (system-attr)
+        nix-build-nom $build [$"($meats)/entry.nix" "-A" (system-attr)]
       }
       ^$env.DIFFER /nix/var/nix/profiles/system $build
       activate $build