deep thoughts

THOUGHTS.txt

@@ -4289,3 +4289,35 @@ Wed Mar  6 18:24:29 GMT 2024
 What happens when we attempt to start the service but it fails?  We
 assume the start was successful so we won't try and restart it again
 next time we get an event that should cause it to start.
+
+Thu Mar  7 11:48:26 GMT 2024
+
+what next?
+
+- fennel script needs to know where s6-rc is
+- some nix syntax
+- update bridge module members.nix to use the new thing
+
+I can't find a ci derivation that uses the bridge.
+
+Mon Mar 11 20:31:45 GMT 2024
+
+Create a qemu config where wan and lan devices are bridged into a
+single bridge
+
+start qemu paused
+Use qemu monitor commands to no-carrier the network devices
+set_link virtio-net-pci.1 off
+set_link virtio-net-pci.0 off
+
+Boot the system
+
+See if both devices are bridge members
+
+See if reboot is possible
+
+Use qemu monitor commands to enable the network devices
+set_link virtio-net-pci.1 on
+set_link virtio-net-pci.0 on
+
+See if both devices are bridge members

overlay.nix

@@ -77,6 +77,22 @@ extraPkgs // {
 
     };
 
+  # luarocks wants a cross-compiled cmake (which seems like a bug,
+  # we're never going to run luarocks on the device, but ...)
+  # but https://github.com/NixOS/nixpkgs/issues/284734
+  # so we do surgery on the cmake derivation until that's fixed
+
+  cmake = prev.cmake.overrideAttrs(o:
+    # don't override the build cmake or we'll have to rebuild
+    # half the known universe to no useful benefit
+    if final.stdenv.buildPlatform != final.stdenv.hostPlatform
+    then {
+      preConfigure =
+        builtins.replaceStrings
+          ["$configureFlags"] ["$configureFlags $cmakeFlags"] o.preConfigure;
+    }
+    else {}
+  );
 
   dnsmasq =
     let d =  prev.dnsmasq.overrideAttrs(o: {

pkgs/anoia/nl.fnl

@@ -1,6 +1,6 @@
 (local netlink (require :netlink))
 
-(local { : view } (require :fennel))
+; (local { : view } (require :fennel))
 
 (fn events [groups]
   (let [sock (netlink.socket)]

pkgs/ifwait/default.nix

@@ -3,8 +3,9 @@
 , netlink-lua
 , writeFennelScript
 , runCommand
+, anoia
 }:
 runCommand "ifwait" {} ''
   mkdir -p $out/bin
-  cp -p ${writeFennelScript "ifwait" [netlink-lua] ./ifwait.fnl} $out/bin/ifwait
+  cp -p ${writeFennelScript "ifwait" [anoia netlink-lua] ./ifwait.fnl} $out/bin/ifwait
 ''