feat!: Remove Paver

BREAKING CHANGE: Removes all remaining Paver commands including
`pavelib/prereqs.py:*` and `pavelib/assets.py:*`.

BREAKING CHANGE: Removes `./manage.py [lms|cms] compile_sass`, which
was just a wrapper around Paver commands.

BREAKING CHANGE: Removes paver.txt. Operators should install testing.txt
instead.

Part of: openedx#34467

.github/workflows/pylint-checks.yml

@@ -22,7 +22,7 @@ jobs:
           - module-name: openedx-2
             path: "openedx/core/djangoapps/geoinfo/ openedx/core/djangoapps/header_control/ openedx/core/djangoapps/heartbeat/ openedx/core/djangoapps/lang_pref/ openedx/core/djangoapps/models/ openedx/core/djangoapps/monkey_patch/ openedx/core/djangoapps/oauth_dispatch/ openedx/core/djangoapps/olx_rest_api/ openedx/core/djangoapps/password_policy/ openedx/core/djangoapps/plugin_api/ openedx/core/djangoapps/plugins/ openedx/core/djangoapps/profile_images/ openedx/core/djangoapps/programs/ openedx/core/djangoapps/safe_sessions/ openedx/core/djangoapps/schedules/ openedx/core/djangoapps/service_status/ openedx/core/djangoapps/session_inactivity_timeout/ openedx/core/djangoapps/signals/ openedx/core/djangoapps/site_configuration/ openedx/core/djangoapps/system_wide_roles/ openedx/core/djangoapps/theming/ openedx/core/djangoapps/user_api/ openedx/core/djangoapps/user_authn/ openedx/core/djangoapps/util/ openedx/core/djangoapps/verified_track_content/ openedx/core/djangoapps/video_config/ openedx/core/djangoapps/video_pipeline/ openedx/core/djangoapps/waffle_utils/ openedx/core/djangoapps/xblock/ openedx/core/djangoapps/xmodule_django/ openedx/core/tests/ openedx/features/ openedx/testing/ openedx/tests/ openedx/core/djangoapps/notifications/ openedx/core/djangoapps/staticfiles/ openedx/core/djangoapps/content_tagging/"
           - module-name: common
-            path: "common pavelib"
+            path: "common"
           - module-name: cms
             path: "cms"
           - module-name: xmodule

.github/workflows/unit-test-shards.json

@@ -255,15 +255,13 @@
   "common-with-lms": {
     "settings": "lms.envs.test",
     "paths": [
-      "common/djangoapps/",
-      "pavelib/"
+      "common/djangoapps/"
     ]
   },
   "common-with-cms": {
     "settings": "cms.envs.test",
     "paths": [
-      "common/djangoapps/",
-      "pavelib/"
+      "common/djangoapps/"
     ]
   },
   "xmodule-with-lms": {

.github/workflows/unit-tests.yml

@@ -180,7 +180,7 @@ jobs:
         shell: bash
         run: |
           echo "root_cms_unit_tests_count=$(pytest --disable-warnings --collect-only --ds=cms.envs.test cms/ -q | head -n -2 | wc -l)" >> $GITHUB_ENV
-          echo "root_lms_unit_tests_count=$(pytest --disable-warnings --collect-only --ds=lms.envs.test lms/ openedx/ common/djangoapps/ xmodule/ pavelib/ -q | head -n -2 | wc -l)" >> $GITHUB_ENV
+          echo "root_lms_unit_tests_count=$(pytest --disable-warnings --collect-only --ds=lms.envs.test lms/ openedx/ common/djangoapps/ xmodule/ -q | head -n -2 | wc -l)" >> $GITHUB_ENV
 
       - name: get GHA unit test paths
         shell: bash

Makefile

@@ -104,7 +104,6 @@ shell: ## launch a bash shell in a Docker container with all edx-platform depend
 # Order is very important in this list: files must appear after everything they include!
 REQ_FILES = \
 	requirements/edx/coverage \
-	requirements/edx/paver \
 	requirements/edx-sandbox/base \
 	requirements/edx/base \
 	requirements/edx/doc \
@@ -211,7 +210,7 @@ xsslint: ## check xss for quality issuest
 	--config=scripts.xsslint_config \
 	--thresholds=scripts/xsslint_thresholds.json
 
-pycodestyle: ## check python files for quality issues 
+pycodestyle: ## check python files for quality issues
 	pycodestyle .
 
 ## Re-enable --lint flag when this issue https://github.com/openedx/edx-platform/issues/35775 is resolved
@@ -222,13 +221,13 @@ pii_check: ## check django models for pii annotations
 		--app_name cms \
 		--coverage \
 		--lint
-	
+
 	DJANGO_SETTINGS_MODULE=lms.envs.test \
 	code_annotations django_find_annotations \
 		--config_file .pii_annotations.yml \
 		--app_name lms \
 		--coverage \
-		--lint	
+		--lint
 
 check_keywords: ## check django models for reserve keywords
 	DJANGO_SETTINGS_MODULE=cms.envs.test \

openedx/core/djangoapps/util/management/commands/print_setting.py

@@ -3,7 +3,11 @@
 =============
 
 Django command to output a single Django setting.
-Useful when paver or a shell script needs such a value.
+Originally used by "paver" scripts before we removed them.
+Still useful when a shell script needs such a value.
+Keep in mind that the LMS/CMS startup time is slow, so if you invoke this
+Django management multiple times in a command that gets run often, you are
+going to be sad.
 
 This handles the one specific use case of the "print_settings" command from
 django-extensions that we were actually using.