migrating config

This deploy logic is primarily based on hxchn's deploy lib [1], with some
slight modifications to make it work with my setup. Everything seems to work
fine for now.

However, I am unsure about the usage of niv — the config doesn't seem to gain
much from it, apart from (some) additional complexity.

[1] https://gitlab.com/hexchen/nixfiles

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/deploy.nix b/lib/deploy.nix
new file mode 100644
index 0000000..1b8d1f2
--- /dev/null
+++ b/lib/deploy.nix
@@ -0,0 +1,23 @@
+{ pkgs, hosts, groups }:
+
+with pkgs.lib; 
+
+(
+  mapAttrs (name: hosts: pkgs.writeScript "deploy-group-${name}" ''
+    #!${pkgs.runtimeShell}
+    export PATH=
+    ${concatMapStrings (host: ''
+      echo "deploying ${host.config.networking.hostName}..."
+      ${host.config.system.build.deployScript} $1 &
+      PID_LIST+=" $!"
+    '') hosts}
+    # FIXME: remove jobs from PIDLIST once they finish
+    trap "kill $PID_LIST" SIGINT
+    wait $PID_LIST
+  '') groups
+) // (
+  mapAttrs
+    (name: host: host.config.system.build.deployScript)
+    (filterAttrs (_: host: host.config.hexchen.deploy.enable) hosts)
+)
+