Try adding to a CI build.

.github/workflows/test-build.yml

@@ -135,14 +135,6 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Install Poetry
-        uses: ./.github/actions/poetry
-
-      - name: Poetry install
-        run: poetry install
-        env:
-          POETRY_VIRTUALENVS_CREATE: false
-
       - name: Test migrations
         run: ./docker/ci/test_migrations.sh
 

docker/ci/test_migrations.sh

@@ -1,4 +1,19 @@
-#!/bin/bash -x
+#!/bin/bash
+
+# This script makes sure that our database migrations bring the database up to date
+# so that the resulting database is the same as if we had initialized a new instance.
+#
+# This is done by checking out the an older version of our codebase. The commit when
+# the first migration was added and initializing a new instance. Then we check out
+# the current version of our codebase and run the migrations. If the database is in
+# sync, then the migrations are up to date. If the database is out of sync, then
+# a new migration is required.
+#
+# This test is cannot be added to the normal migration test suite since it requires
+# manipulating the git history and checking out older versions of the codebase.
+#
+# All of the commands in this script are run inside a docker-compose environment.
+
 
 compose_cmd() {
   docker --log-level ERROR compose --progress quiet "$@"