feat: build and cache debug and src on this branch (#1360)

Author: samrose

docker/nix/build_nix.sh

@@ -5,6 +5,13 @@ nix --version
 if [ -d "/workspace" ]; then
     cd /workspace
 fi
+SYSTEM=$(nix-instantiate --eval -E builtins.currentSystem | tr -d '"')
 nix build .#psql_15/bin -o psql_15
 nix flake check -L 
 nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key ./psql_15
+if [ "$SYSTEM" = "aarch64-linux" ]; then
+    nix build .#postgresql_15_debug -o ./postgresql_15_debug
+    nix build .#postgresql_15_src -o ./postgresql_15_src
+    nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key ./postgresql_15_debug-debug
+    nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key  ./postgresql_15_src
+fi

flake.nix

@@ -296,7 +296,7 @@
           pg_regress = pg_regress;
           pg_prove = pkgs.perlPackages.TAPParserSourceHandlerpgTAP;
           postgresql_15 = pkgs.postgresql_15;
-
+          postgresql_15_debug = if pkgs.stdenv.isLinux then postgresql_15.debug else null;
           postgresql_15_src = pkgs.stdenv.mkDerivation {
             pname = "postgresql-15-src";
             version = pkgs.postgresql_15.version;