From 3c724a05794180df4c960adf0e9a6b71f0c15aef Mon Sep 17 00:00:00 2001
From: Nathan McCarty <nathan@mccarty.io>
Date: Sat, 13 May 2023 17:24:13 -0400
Subject: [PATCH] First pass at oracles automation

---
 machines/oracles/automation.nix    | 16 ++++++++++++++++
 machines/oracles/configuration.nix |  1 +
 scripts/gitea/update-repo.sh       | 22 ++++++++++++++++++++++
 3 files changed, 39 insertions(+)
 create mode 100644 machines/oracles/automation.nix
 create mode 100755 scripts/gitea/update-repo.sh

diff --git a/machines/oracles/automation.nix b/machines/oracles/automation.nix
new file mode 100644
index 0000000..4cc86e0
--- /dev/null
+++ b/machines/oracles/automation.nix
@@ -0,0 +1,16 @@
+{ config, lib, pkgs, ... }:
+let
+  repo-updater = pkgs.writeShellScriptBin "repo-updater"
+    (builtins.readFile ../../scripts/gitea/update-repo.sh);
+in {
+  # Automate updating rust utility flake
+  systemd.services."rust-util-update" = {
+    environment = { XDG_RUNTIME_DIR = "/tmp"; };
+    serviceConfig = {
+      ExecStart =
+        "${repo-updater}/bin/repo-updater gitea@git.stranger.systems:nix/Rust.git trunk";
+      Type = "oneshot";
+      User = "nathan";
+    };
+  };
+}
diff --git a/machines/oracles/configuration.nix b/machines/oracles/configuration.nix
index 9642772..4f7c6bc 100644
--- a/machines/oracles/configuration.nix
+++ b/machines/oracles/configuration.nix
@@ -1,6 +1,7 @@
 { config, lib, pkgs, inputs, ... }:
 
 {
+  imports = [ ./automation.nix ];
   # Sops setup for this machine
   sops.secrets = {
     "borg-ssh-key" = {
diff --git a/scripts/gitea/update-repo.sh b/scripts/gitea/update-repo.sh
new file mode 100755
index 0000000..3a77ff1
--- /dev/null
+++ b/scripts/gitea/update-repo.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -eou pipefail
+
+TEMP_DIR=$(mktemp -d "repo-updater.XXXX" -p $XDG_RUNTIME_DIR)
+pushd $TEMP_DIR
+
+git clone "$1" repo
+pushd repo
+git switch $2
+
+./update.sh
+
+git add -A
+if git commit -m "Update flake/dependencies"; then
+    git push -u origin $2
+else
+    echo "No changes made"
+fi
+
+popd
+popd
+rm -rf $TEMP_DIR