def render(self, context):
"""
Build the filepath by appending the extension.
"""
module_path = self.path.resolve(context)
if not settings.SYSTEMJS_ENABLED:
if settings.SYSTEMJS_DEFAULT_JS_EXTENSIONS:
name, ext = posixpath.splitext(module_path)
if not ext:
module_path = '{}.js'.format(module_path)
if settings.SYSTEMJS_SERVER_URL:
tpl = """<script src="{url}{app}" type="text/javascript"></script>"""
else:
tpl = """<script type="text/javascript">System.import('{app}');</script>"""
return tpl.format(app=module_path, url=settings.SYSTEMJS_SERVER_URL)
# else: create a bundle
rel_path = System.get_bundle_path(module_path)
url = staticfiles_storage.url(rel_path)
tag_attrs = {'type': 'text/javascript'}
for key, value in self.tag_attrs.items():
if not isinstance(value, bool):
value = value.resolve(context)
tag_attrs[key] = value
return """<script{attrs} src="{url}"></script>""".format(
url=url, attrs=flatatt(tag_attrs)
)
def render(self, context):
"""
Build the filepath by appending the extension.
"""
module_path = self.path.resolve(context)
if not settings.SYSTEMJS_ENABLED:
if settings.SYSTEMJS_DEFAULT_JS_EXTENSIONS:
name, ext = posixpath.splitext(module_path)
if not ext:
module_path = '{}.js'.format(module_path)
tpl = """<script type="text/javascript">System.import('{app}');</script>"""
return tpl.format(app=module_path)
# else: create a bundle
rel_path = System.get_bundle_path(module_path)
url = staticfiles_storage.url(rel_path)
tag_attrs = {'type': 'text/javascript'}
for key, value in self.tag_attrs.items():
if not isinstance(value, bool):
value = value.resolve(context)
tag_attrs[key] = value
return """<script{attrs} src="{url}"></script>""".format(
url=url, attrs=flatatt(tag_attrs))
def handle(self, **options):
super(Command, self).handle(**options)
self.post_process = options['post_process']
self.minimal = options.get('minimal')
self.verbosity = 2
self.storage = copy(staticfiles_storage)
self.storage.systemjs_bundling = True # set flag to check later
# initialize SystemJS specific objects to process the bundles
tracer = SystemTracer(node_path=options.get('node_path'))
system_opts = self.get_system_opts(options)
system = System(**system_opts)
has_different_options = self.minimal and tracer.get_bundle_options() != system_opts
# discover the apps being imported in the templates
all_apps = self.find_apps(templates=options.get('templates'))
all_apps = set(sum(all_apps.values(), []))
bundled_files = OrderedDict()
# FIXME: this should be configurable, if people use S3BotoStorage for example, it needs to end up there
storage = FileSystemStorage(settings.STATIC_ROOT, base_url=settings.STATIC_URL)
for app in all_apps:
# do we need to generate the bundle for this app?
if self.minimal and not (has_different_options or tracer.check_needs_update(app)):
# check if the bundle actually exists - if it doesn't, don't skip it
# this happens on the first ever bundle
bundle_path = System.get_bundle_path(app)
if self.storage.exists(bundle_path):
self.stdout.write('Checked bundle for app \'{app}\', no changes found'.format(app=app))
continue
rel_path = system.bundle(app)
if not self.storage.exists(rel_path):
self.stderr.write('Could not bundle {app}'.format(app=app))
else:
self.stdout.write('Bundled {app} into {out}'.format(app=app, out=rel_path))
bundled_files[rel_path] = (storage, rel_path)
if self.minimal and bundled_files:
self.stdout.write('Generating the new depcache and writing to file...')
all_deps = {app: tracer.trace(app) for app in all_apps}
tracer.write_depcache(all_deps, system_opts)
if self.post_process and hasattr(self.storage, 'post_process'):
# post-process system.js if it's within settings.STATIC_ROOT
systemjs_path = find_systemjs_location()
try:
within_static_root = self.storage.exists(systemjs_path)
except SuspiciousFileOperation:
within_static_root = False
if within_static_root:
relative = os.path.relpath(systemjs_path, settings.STATIC_ROOT)
bundled_files[relative] = (storage, relative)
processor = self.storage.post_process(bundled_files, dry_run=False)
for original_path, processed_path, processed in processor:
if isinstance(processed, Exception): # pragma: no cover
self.stderr.write("Post-processing '%s' failed!" % original_path)
# Add a blank line before the traceback, otherwise it's
# too easy to miss the relevant part of the error message.
self.stderr.write("")
raise processed
if processed: # pragma: no cover
self.log("Post-processed '%s' as '%s'" % (original_path, processed_path), level=1)
else:
self.log("Skipped post-processing '%s'" % original_path) # pragma: no cover
