Only the deploy builds the images, on the server, after every check
has passed, so an image that pub refuses cost a push each time (twice
on 4 Nov 2026). A step of tool/check.dart, right after the packages,
replays each Dockerfile's build stage up to its `dart pub get` from
the working tree's files in an empty folder, with Dart alone at the
image's version (downloaded once into ~/.cache/halkyon-check/, its
SHA-256 checked), offline, in an environment holding nothing of the
machine's Dart or Flutter: `dart run` from Flutter sets DART_ROOT,
through which pub found Flutter and accepted what the image refuses.
Checked on both failed deploys' states, which fail it as they did,
and on the fix, which passes. --images-only runs it alone, in
seconds. The list of images, dartImages, moves into
tool/src/images.dart, and a test keeps every Dockerfile building with
Dart on it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
