1 files changed, 77 insertions, 0 deletions
diff --git a/users/sterni/machines/default.nix b/users/sterni/machines/default.nix
new file mode 100644
index 0000000000..4a859a337a
--- /dev/null
+++ b/users/sterni/machines/default.nix
@@ -0,0 +1,77 @@
+{ depot, lib, pkgs, ... }:
+
+let
+  bins = depot.nix.getBins pkgs.nq [ "fq" "nq" ];
+
+  machines = lib.mapAttrs
+    (name: _:
+      depot.ops.nixos.nixosFor (import (./. + ("/" + name)))
+    )
+    (lib.filterAttrs (_: type: type == "directory") (builtins.readDir ./.));
+
+  # TODO(sterni): share code with rebuild-system
+  localDeployScriptFor = { system, ... }:
+    pkgs.writeShellScript "local-deploy-${system.name}" ''
+      set -eu
+      nix-env -p /nix/var/nix/profiles/system --set "${system}"
+      "${system}/bin/switch-to-configuration" switch
+    '';
+
+  # Builds the system on the remote machine
+  deployScriptFor = { system, ... }@machine:
+    pkgs.writeShellScript "remote-deploy-${system.name}" ''
+      set -eu
+
+      if [ $# != 1 ]; then
+        printf 'usage: %s [USER@]HOST' "$0"
+        exit 100
+      fi
+
+      readonly TARGET_HOST="$1"
+      readonly DEPLOY_DRV="${
+        builtins.unsafeDiscardOutputDependency (
+          # Wrapper script around localDeployScriptFor that merely starts the
+          # local deploy script using and nq and then waits using fq. This means
+          # we can't Ctrl-C the deploy and it won't be terminated by a lost
+          # connection.
+          pkgs.writeShellScript "queue-deploy-${system.name}" ''
+            readonly STATE_DIR="''${XDG_STATE_HOME:-$HOME/.local/state}/sterni-deploy"
+            mkdir -p "$STATE_DIR"
+
+            export NQDIR="$STATE_DIR"
+
+            "${bins.nq}" "${localDeployScriptFor machine}"
+            "${bins.fq}"
+          ''
+        ).drvPath
+      }"
+
+      nix-copy-closure -s --gzip --to "$TARGET_HOST" "$DEPLOY_DRV"
+
+      readonly DEPLOY_OUT="$(ssh "$TARGET_HOST" "nix-store -r '$DEPLOY_DRV'")"
+
+      ssh "$TARGET_HOST" "$DEPLOY_OUT"
+    '';
+
+in
+
+depot.nix.readTree.drvTargets (
+  # this somehow becomes necessarily ugly with nixpkgs-fmt
+  machines // { inherit deployScriptFor; } //
+
+  lib.mapAttrs'
+    (name: _: {
+      name = "${name}System";
+      value = machines.${name}.system;
+    })
+    machines
+
+    //
+
+  lib.mapAttrs'
+    (name: _: {
+      name = "${name}Deploy";
+      value = deployScriptFor machines.${name};
+    })
+    machines
+)