storage: Stop using django-pipeline.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>

docs/subsystems/front-end-build-process.md

@@ -74,13 +74,11 @@ needs to be accessible from one of the entry points defined in
   the compiled JS and CSS.
 
 If you want to test minified files in development, look for the
-`PIPELINE_ENABLED =` line in `zproject/settings.py` and set it to `True`
--- or just set `DEBUG = False`.
+`DEBUG =` line in `zproject/settings.py` and set it to `False`.
 
 ## How it works in production
 
-You can learn a lot from reading about django-pipeline, but a few
-useful notes are:
+A few useful notes are:
 * Zulip installs static assets in production in
 `/home/zulip/prod-static`.  When a new version is deployed, before the
 server is restarted, files are copied into that directory.

docs/subsystems/html_css.md

@@ -8,8 +8,7 @@ main third-party CSS library.
 
 Zulip currently does not use any CSS preprocessors, and is organized
 into several files.  For most pages, the CSS is combined into a single
-CSS file by the [static asset pipeline](../subsystems/front-end-build-process.html),
-controlled by the `PIPELINE_CSS` code in `zproject/settings.py`.
+CSS file by the [static asset pipeline](../subsystems/front-end-build-process.html).
 
 The CSS files are:
 

zerver/lib/storage.py

@@ -5,9 +5,8 @@ from typing import Optional
 
 from django.conf import settings
 from django.contrib.staticfiles.storage import ManifestStaticFilesStorage
-from pipeline.storage import PipelineMixin
 
-if not settings.PIPELINE_ENABLED:
+if settings.DEBUG:
     from django.contrib.staticfiles.finders import find
 
     def static_path(path: str) -> str:
@@ -44,8 +43,7 @@ class IgnoreBundlesManifestStaticFilesStorage(ManifestStaticFilesStorage):
             return name
         return super().hashed_name(name, content, filename)
 
-class ZulipStorage(PipelineMixin,
-                   IgnoreBundlesManifestStaticFilesStorage):
+class ZulipStorage(IgnoreBundlesManifestStaticFilesStorage):
     # This is a hack to use staticfiles.json from within the
     # deployment, rather than a directory under STATIC_ROOT.  By doing
     # so, we can use a different copy of staticfiles.json for each

zerver/tests/test_templates.py

@@ -81,9 +81,6 @@ class TemplateTestCase(ZulipTestCase):
             'zerver/emails/compiled/password_reset.html',
             'corporate/zephyr.html',
             'corporate/zephyr-mirror.html',
-            'pipeline/css.jinja',
-            'pipeline/inline_js.jinja',
-            'pipeline/js.jinja',
             'zilencer/enterprise_tos_accept_body.txt',
             'zerver/zulipchat_migration_tos.html',
             'zilencer/enterprise_tos_accept_body.txt',

zerver/views/home.py

@@ -288,7 +288,6 @@ def home_real(request: HttpRequest) -> HttpResponse:
                                'avatar_url': avatar_url(user_profile),
                                'show_debug':
                                settings.DEBUG and ('show_debug' in request.GET),
-                               'pipeline': settings.PIPELINE_ENABLED,
                                'search_pills_enabled': settings.SEARCH_PILLS_ENABLED,
                                'show_invites': show_invites,
                                'show_add_streams': show_add_streams,

zproject/dev_urls.py

@@ -11,7 +11,7 @@ import zerver.views.development.integrations
 
 # These URLs are available only in the development environment
 
-use_prod_static = getattr(settings, 'PIPELINE_ENABLED', False)
+use_prod_static = not settings.DEBUG
 
 urls = [
     # Serve useful development environment resources (docs, coverage reports, etc.)

zproject/settings.py

@@ -576,7 +576,6 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.staticfiles',
     'confirmation',
-    'pipeline',
     'webpack_loader',
     'zerver',
     'social_django',
@@ -861,7 +860,7 @@ if CAMO_URI != '':
 
 STATIC_URL = '/static/'
 
-# ZulipStorage is a modified version of PipelineCachedStorage,
+# ZulipStorage is a modified version of ManifestStaticFilesStorage,
 # and, like that class, it inserts a file hash into filenames
 # to prevent the browser from using stale files from cache.
 #
@@ -869,16 +868,8 @@ STATIC_URL = '/static/'
 # STATIC_ROOT even for dev servers.  So we only use
 # ZulipStorage when not DEBUG.
 
-# This is the default behavior from Pipeline, but we set it
-# here so that urls.py can read it.
-PIPELINE_ENABLED = not DEBUG
-
-if PIPELINE_ENABLED:
+if not DEBUG:
     STATICFILES_STORAGE = 'zerver.lib.storage.ZulipStorage'
-    STATICFILES_FINDERS = (
-        'django.contrib.staticfiles.finders.FileSystemFinder',
-        'pipeline.finders.PipelineFinder',
-    )
     if PRODUCTION:
         STATIC_ROOT = '/home/zulip/prod-static'
     else:
@@ -893,24 +884,7 @@ FILE_UPLOAD_MAX_MEMORY_SIZE = 0
 
 STATICFILES_DIRS = ['static/']
 
-# To use minified files in dev, set PIPELINE_ENABLED = True.  For the full
-# cache-busting behavior, you must also set DEBUG = False.
-#
-# You will need to run update-prod-static after changing
-# static files.
-#
-# Useful reading on how this works is in
-# https://zulip.readthedocs.io/en/latest/subsystems/front-end-build-process.html
-
-PIPELINE = {
-    'PIPELINE_ENABLED': PIPELINE_ENABLED,
-    'CSS_COMPRESSOR': 'pipeline.compressors.yui.YUICompressor',
-    'YUI_BINARY': '/usr/bin/env yui-compressor',
-    'STYLESHEETS': {},
-    'JAVASCRIPT': {},
-}
-
-if not PIPELINE_ENABLED:
+if DEBUG:
     WEBPACK_STATS_FILE = os.path.join('var', 'webpack-stats-dev.json')
 else:
     WEBPACK_STATS_FILE = 'webpack-stats-production.json'
@@ -942,7 +916,6 @@ base_template_engine_settings = {
         'extensions': [
             'jinja2.ext.i18n',
             'jinja2.ext.autoescape',
-            'pipeline.jinja2.PipelineExtension',
             'webpack_loader.contrib.jinja2ext.WebpackExtension',
         ],
         'context_processors': [
@@ -961,9 +934,7 @@ default_template_engine_settings.update({
         # The webhook integration templates
         os.path.join(DEPLOY_ROOT, 'zerver', 'webhooks'),
         # The python-zulip-api:zulip_bots package templates
-        os.path.join(
-            STATIC_ROOT if PIPELINE_ENABLED else 'static', 'generated', 'bots'
-        ),
+        os.path.join('static' if DEBUG else STATIC_ROOT, 'generated', 'bots'),
     ],
     'APP_DIRS': True,
 })