🔨 pg upgrade script

flake.lock

@@ -30,11 +30,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1698921442,
-        "narHash": "sha256-7KmvhQ7FuXlT/wG4zjTssap6maVqeAMBdtel+VjClSM=",
+        "lastModified": 1702302389,
+        "narHash": "sha256-T+R3vX31dQH/qb+ojf/rGrOVbY6/fR9X6H+hb0nEnHw=",
         "owner": "serokell",
         "repo": "deploy-rs",
-        "rev": "660180bbbeae7d60dad5a92b30858306945fd427",
+        "rev": "514fa3bc3d24fa85f338fa6a8247ca7e116ab9de",
         "type": "github"
       },
       "original": {
@@ -267,11 +267,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1701656485,
-        "narHash": "sha256-xDFormrGCKKGqngHa2Bz1GTeKlFMMjLnHhTDRdMJ1hs=",
+        "lastModified": 1702245580,
+        "narHash": "sha256-tTVRB42Ljo2uWGP7ei5h5/qQjOsdXoz0GHRy9hrVrdw=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "fa194fc484fd7270ab324bb985593f71102e84d1",
+        "rev": "030edbb68e69f2b97231479f98a9597024650df2",
         "type": "github"
       },
       "original": {
@@ -356,11 +356,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1700922917,
-        "narHash": "sha256-ej2fch/T584b5K9sk1UhmZF7W6wEfDHuoUYpFN8dtvM=",
+        "lastModified": 1702325376,
+        "narHash": "sha256-biLGx2LzU2+/qPwq+kWwVBgXs3MVYT1gPa0fCwpLplU=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "e5ee5c5f3844550c01d2131096c7271cec5e9b78",
+        "rev": "e1d203c2fa7e2593c777e490213958ef81f71977",
         "type": "github"
       },
       "original": {

modules/postgresql/default.nix

@@ -12,16 +12,20 @@
 
   # Postgres upgrades: https://nixos.org/manual/nixos/stable/index.html#module-services-postgres-upgrading
   environment.systemPackages = [
-    (pkgs.writeScriptBin "upgrade-pg-cluster" ''
+    (
+      let
+        # XXX specify the postgresql package you'd like to upgrade to.
+        # Do not forget to list the extensions you need.
+        newPostgres = pkgs.postgresql_15;
+      in
+      pkgs.writeScriptBin "upgrade-pg-cluster" ''
         set -eux
         # XXX it's perhaps advisable to stop all services that depend on postgresql
         systemctl stop postgresql
 
-      # XXX replace `<new version>` with the psqlSchema here
-      export NEWDATA="/var/lib/postgresql/14"
+        export NEWDATA="/var/lib/postgresql/${newPostgres.psqlSchema}"
 
-      # XXX specify the postgresql package you'd like to upgrade to
-      export NEWBIN="${pkgs.postgresql_14}/bin"
+        export NEWBIN="${newPostgres}/bin"
 
         export OLDDATA="${config.services.postgresql.dataDir}"
         export OLDBIN="${config.services.postgresql.package}/bin"
@@ -34,6 +38,7 @@
           --old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
           --old-bindir $OLDBIN --new-bindir $NEWBIN \
           "$@"
-    '')
+      ''
+    )
   ];
 }