build: switch to new edx-platform asset build

tutor/templates/build/openedx/Dockerfile

@@ -200,25 +200,20 @@ ENV PATH /openedx/bin:${PATH}
 
 {{ patch("openedx-dockerfile-pre-assets") }}
 
-# Collect production assets. By default, only assets from the default theme
+# Build & collect production assets. By default, only assets from the default theme
 # will be processed. This makes the docker image lighter and faster to build.
 # Only the custom themes added to /openedx/themes will be compiled.
-# Here, we don't run "paver update_assets" which is slow, compiles all themes
-# and requires a complex settings file. Instead, we decompose the commands
-# and run each one individually to collect the production static assets to
-# /openedx/staticfiles.
-ENV NO_PYTHON_UNINSTALL 1
-ENV NO_PREREQ_INSTALL 1
-# We need to rely on a separate openedx-assets command to accelerate asset processing.
-# For instance, we don't want to run all steps of asset collection every time the theme
-# is modified.
-RUN openedx-assets xmodule \
-    && openedx-assets npm \
-    && openedx-assets webpack --env=prod \
-    && openedx-assets common
+
+ENV EDX_PLATFORM_ASSET_OPTS "--theme-dirs /openedx/themes --static-root /openedx/staticfiles"
+RUN scripts/build-assets.sh xmodule
+RUN scripts/build-assets.sh npm
+RUN scripts/build-assets.sh webpack
+RUN scripts/build-assets.sh css
+
 COPY --chown=app:app ./themes/ /openedx/themes/
-RUN openedx-assets themes \
-    && openedx-assets collect --settings=tutor.assets \
+RUN scripts/build-assets.sh themes
+
+RUN openedx-assets collect --settings=tutor.assets \
     # De-duplicate static assets with symlinks
     && rdfind -makesymlinks true -followsymlinks true /openedx/staticfiles/
 
@@ -264,7 +259,7 @@ ENV PYTHONBREAKPOINT=ipdb.set_trace
 # static assets, then production assets will be served instead.
 RUN rm -r /openedx/staticfiles && \
     mkdir /openedx/staticfiles && \
-    openedx-assets webpack --env=dev
+    scripts/build-assets.sh webpack --env dev
 
 {{ patch("openedx-dev-dockerfile-post-python-requirements") }}