feat(nix): copy paths to cachixe

Signed-off-by: Carlos Alexandro Becker <[email protected]>
caarlos0 · Dec 20, 2023 · 3744bb2 · 3744bb2
1 parent 703411b
commit 3744bb2
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Showing 3 changed files with 48 additions and 22 deletions.
diff --git a/flake.lock b/flake.lock
diff --git a/machines/shared.nix b/machines/shared.nix
@@ -1,4 +1,7 @@
 { pkgs, ... }:
+let
+  cachixe = (pkgs.callPackage ../packages/cachixe.nix { });
+in
 {
   imports =
     [
@@ -77,6 +80,7 @@
     package = pkgs.nixFlakes;
     extraOptions = ''
       experimental-features = nix-command flakes
+      post-build-hook = ${cachixe}/bin/upload-to-cache
     '';
     settings = {
       auto-optimise-store = true;
@@ -129,7 +133,7 @@
   services.cron.enable = true;
   services.avahi = {
     enable = true;
-    nssmdns = true;
+    nssmdns4 = true;
     publish = {
       enable = true;
       domain = true;

diff --git a/packages/cachixe.nix b/packages/cachixe.nix
@@ -0,0 +1,22 @@
+{ stdenv, writeText, ... }:
+let
+  script = writeText "upload-to-cache.sh" ''
+    #!/bin/sh
+    set -eu
+    set -f # disable globbing
+    export IFS=' '
+    echo "Uploading paths" $OUT_PATHS
+    exec nix copy --to "ssh://cachixe.local" $OUT_PATHS
+  '';
+in
+stdenv.mkDerivation {
+  name = "upload-to-cache";
+  version = "unstable";
+  dontUnpack = true;
+
+  installPhase = ''
+    mkdir -vp $out/bin
+    cp ${script} $out/bin/upload-to-cachixe
+    chmod +x $out/bin/upload-to-cachixe
+  '';
+}