From 8147790da9305b1f216286018f7af865f179aa5a Mon Sep 17 00:00:00 2001
From: Matt Sturgeon <matt@sturgeon.me.uk>
Date: Sun, 30 Nov 2025 17:55:22 +0000
Subject: [PATCH] ci/update: always cd to the root of the flake

Allows running the script from a sub-directory, e.g.

    cd ci
    nix-build -A update
    result/bin/update
---
 ci/update.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ci/update.nix b/ci/update.nix
index 33c5c887..e1f56aa4 100644
--- a/ci/update.nix
+++ b/ci/update.nix
@@ -31,6 +31,9 @@ writeShellApplication {
       update_args+=( "--commit-lock-file" )
     fi
 
+    # Ensure we run at the root of the flake
+    cd "$(git rev-parse --show-toplevel)"
+
     currentCommit() {
       git show --no-patch --format=%h
     }