`tutor ... do settheme default` is meant to revert to the
default theme. However, in its current implementation, it
creates SiteTheme objects pointing to a theme named "default",
which doesn't exist, resulting in errors like:
Theme dirs:
[Path('/openedx/themes')]]
Traceback (most recent call last):
File "/openedx/edx-platform/openedx/core/djangoapps/theming/helpers.py", line 204, in get_current_theme
themes_base_dir=get_theme_base_dir(site_theme.theme_dir_name),
File "/openedx/edx-platform/openedx/core/djangoapps/theming/helpers.py", line 242, in get_theme_base_dir
raise ValueError(
ValueError: Theme 'default' not found in any of the following themes dirs,
This works from the perspective of the user, because a missing theme is
treated as the default theme. However, the errors are unneccesary &
confusing.
By simply deleting & not recreating SiteTheme objects instead,
we are able to revert to the default theme while keeping the
logs clear of theming errors.
Manual configuration via the `MOUNTS` setting was inconvenient. We
(re)introduce a new(ish) `tutor mounts` command. Old timers will perhaps
remember that we used to have a `tutor bindmount` command. Well, it's
back! But better and different.
Templated hooks we almost completely useless, so we get rid of them.
This allows us to get rid entirely of hook names and hook indexes, which
makes the whole implementation much simpler. Hook removal (with
`clear_all`) is achieved thanks to weak references.
This is an important change, where we get remove the previous `--mount`
option, and instead opt for persistent bind-mounts.
Persistent bind mounts have several advantages:
- They make it easier to remember which folders need to be bind-mounted.
- Code is *much* less clunky, as we no longer need to generate temporary
docker-compose files.
- They allow us to bind-mount host directories *at build time* using the
buildx `--build-context` option.
- The transition from development to production becomes much easier, as
images will automatically be built using the host repo.
The only drawback is that persistent bind-mounts are slightly less
portable: when a config.yml file is moved to a different folder, many
things will break if the repo is not checked out in the same path.
For instance, this is how to start working on a local fork of
edx-platform:
tutor config save --append MOUNTS=/path/to/edx-platform
And that's all there is to it. No, this fork will be used whenever we
run:
tutor images build openedx
tutor local start
tutor dev start
This change is made possible by huge improvements in the build time
performance. These improvements make it convenient to re-build Docker
images often.
Related issues:
https://github.com/openedx/wg-developer-experience/issues/71https://github.com/openedx/wg-developer-experience/issues/66https://github.com/openedx/wg-developer-experience/issues/166
