fix(backup): convert odoo regex extensions

The backup image [accepts a regexp on `DBS_TO_INCLUDE`][1]. But [Odoo uses a regexp with custom extensions][2] (`%h` and `%d`).

If you use any of those extensions, the backup jobrunner will fail with `CalledProcessError`.

Additionally, regexps usually contain a `$` symbol, which [needs to be escaped for docker-compose][3].

[1]: https://github.com/Tecnativa/docker-duplicity#dbs_to_includeexclude
[2]: https://www.odoo.com/documentation/16.0/developer/reference/cli.html#cmdoption-odoo-bin-db-filter
[3]: https://docs.docker.com/compose/compose-file/compose-file-v2/#variable-substitution

BREAKING CHANGE: if your dbfilter contained `$$` previously, to do that escaping yourself, you will have to convert it to a single `$`

@moduon MT-4191

common.yaml.jinja

@@ -92,7 +92,7 @@ services:
     init: true
     environment:
       DB_VERSION: "{{ postgres_version or 'latest' }}"
-      DBS_TO_INCLUDE: "{{ odoo_dbfilter }}"
+      DBS_TO_INCLUDE: "{{ odoo_dbfilter | replace('$', '$$') | replace('%d', '.*') | replace('%h', '.*') }}"
       DST: "{{ backup_dst }}"
       {%- if smtp_relay_host %}
       EMAIL_FROM: "{{ backup_email_from }}"

prod.yaml.jinja

@@ -19,7 +19,7 @@ services:
       - .docker/odoo.env
       - .docker/db-access.env
     environment:
-      DB_FILTER: "{{ odoo_dbfilter }}"
+      DB_FILTER: "{{ odoo_dbfilter | replace('$', '$$') }}"
       DOODBA_ENVIRONMENT: "${DOODBA_ENVIRONMENT-prod}"
       INITIAL_LANG: "{{ odoo_initial_lang }}"
       {%- if smtp_relay_host %}

tests/test_settings_effect.py

@@ -113,3 +113,27 @@ def test_dbfilter_default(
         assert "DB_FILTER" not in test.services["odoo"].environment
         assert prod.services["odoo"].environment["DB_FILTER"] == "^prod"
         assert prod.services["backup"].environment["DBS_TO_INCLUDE"] == "^prod"
+
+
+def test_dbfilter_custom_odoo_extensions(
+    cloned_template: Path, supported_odoo_version: float, tmp_path: Path
+):
+    """Fixes custom Odoo regexp extensions in dbfilter for the backup service."""
+    with local.cwd(tmp_path):
+        run_copy(
+            src_path=str(cloned_template),
+            dst_path=".",
+            data={
+                "odoo_version": supported_odoo_version,
+                "postgres_version": DBVER_PER_ODOO[supported_odoo_version]["latest"],
+                "backup_dst": "file:///here",
+                "odoo_dbfilter": "^%d_%h$",
+            },
+            vcs_ref="test",
+            defaults=True,
+            overwrite=True,
+            unsafe=True,
+        )
+        prod = DockerClient(compose_files=["prod.yaml"]).compose.config()
+        assert prod.services["odoo"].environment["DB_FILTER"] == "^%d_%h$$"
+        assert prod.services["backup"].environment["DBS_TO_INCLUDE"] == "^.*_.*$$"