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Update blueprint support to latest trunk.

With an extra hack to suppress "source file not found errors", because the
tests still need updating for this to change.

Flask-Assets used to ignore missing files (different from the webassets core),
but this was always an oversight, and is now extra effort to implement, so
we will get rid of the old behaviour in a future commit.
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1 parent d991ff4 commit 3d9913f73967b7d3fe24a25e994b40dbca889ead @miracle2k committed Jul 9, 2012
Showing with 92 additions and 71 deletions.
  1. +84 −67 src/flask_assets.py
  2. +8 −4 tests/test_integration.py
View
@@ -1,7 +1,8 @@
from __future__ import with_statement
from os import path
from flask import _request_ctx_stack, url_for
-from webassets.env import BaseEnvironment, ConfigStorage, env_options
+from webassets.env import (\
+ BaseEnvironment, ConfigStorage, env_options, Resolver, url_prefix_join)
from webassets.loaders import PythonLoader, YAMLLoader
@@ -96,9 +97,90 @@ def get_static_folder(app_or_blueprint):
return path.join(app_or_blueprint.root_path, 'static')
+class FlaskResolver(Resolver):
+ """Support Flask blueprints."""
+
+ def split_prefix(self, item):
+ """See if ``item`` has blueprint prefix, return (directory, rel_path).
+ """
+ try:
+ if hasattr(self.env._app, 'blueprints'):
+ blueprint, name = item.split('/', 1)
+ directory = get_static_folder(self.env._app.blueprints[blueprint])
+ item = name
+ else:
+ # Module support for Flask < 0.7
+ module, name = item.split('/', 1)
+ directory = get_static_folder(self.env._app.modules[module])
+ item = name
+ except (ValueError, KeyError):
+ directory = get_static_folder(self.env._app)
+
+ return directory, item
+
+ def search_for_source(self, item):
+ if self.env.load_path:
+ # Note: With only env.directory set, we don't go to default;
+ # Setting env.directory only makes the output directory fixed.
+ return Resolver.search_for_source(self, item)
+ # Look in correct blueprint's directory
+ directory, item = self.split_prefix(item)
+ try:
+ return self.consider_single_directory(directory, item)
+ except IOError:
+ # XXX: Hack to make the tests pass, which are written to not
+ # expect an IOError upon missing files. They need to be rewritten.
+ return path.normpath(path.join(directory, item))
+
+ def resolve_output_to_path(self, target, bundle):
+ if self.env.config.get('directory'):
+ return Resolver.resolve_output_to_path(self, target, bundle)
+ # Allow targeting blueprint static folders
+ directory, rel_path = self.split_prefix(target)
+ return path.normpath(path.join(directory, rel_path))
+
+ def resolve_source_to_url(self, filepath, item):
+ if self.env.config.get('url'):
+ return url_prefix_join(self.env.url, item)
+
+ filename = item
+ if hasattr(self.env._app, 'blueprints'):
+ try:
+ blueprint, name = item.split('/', 1)
+ self.env._app.blueprints[blueprint] # keyerror if no module
+ endpoint = '%s.static' % blueprint
+ filename = name
+ except (ValueError, KeyError):
+ endpoint = 'static'
+ else:
+ # Module support for Flask < 0.7
+ try:
+ module, name = item.split('/', 1)
+ self.env._app.modules[module] # keyerror if no module
+ endpoint = '%s.static' % module
+ filename = name
+ except (ValueError, KeyError):
+ endpoint = '.static'
+
+ ctx = None
+ if not _request_ctx_stack.top:
+ ctx = self.env._app.test_request_context()
+ ctx.push()
+ try:
+ return url_for(endpoint, filename=filename)
+ finally:
+ if ctx:
+ ctx.pop()
+
+ def resolve_output_to_url(self, target):
+ # Behaves like the source directory
+ return self.resolve_source_to_url(None, target)
+
+
class Environment(BaseEnvironment):
config_storage_class = FlaskConfigStorage
+ resolver_class = FlaskResolver
def __init__(self, app=None):
self.app = app
@@ -120,53 +202,7 @@ def _app(self):
raise RuntimeError('assets instance not bound to an application, '+
'and no application in current context')
- def absurl(self, fragment):
- if self.config.get('url') is not None:
- # If a manual base url is configured, skip any
- # blueprint-based auto-generation.
- return super(Environment, self).absurl(fragment)
- else:
- try:
- filename, query = fragment.split('?', 1)
- query = '?' + query
- except (ValueError):
- filename = fragment
- query = ''
-
- if hasattr(self._app, 'blueprints'):
- try:
- blueprint, name = filename.split('/', 1)
- self._app.blueprints[blueprint] # generates keyerror if no module
- endpoint = '%s.static' % blueprint
- filename = name
- except (ValueError, KeyError):
- endpoint = 'static'
- else:
- # Module support for Flask < 0.7
- try:
- module, name = filename.split('/', 1)
- self._app.modules[module] # generates keyerror if no module
- endpoint = '%s.static' % module
- filename = name
- except (ValueError, KeyError):
- endpoint = '.static'
-
- ctx = None
- if not _request_ctx_stack.top:
- ctx = self._app.test_request_context()
- ctx.push()
- try:
- return url_for(endpoint, filename=filename) + query
- finally:
- if ctx:
- ctx.pop()
-
- def abspath(self, path):
- """Still needed to resolve the output path.
- XXX: webassets needs to call _normalize_source_path
- for this!
- """
- return self._normalize_source_path(path)
+
# XXX: This is required because in a couple of places, webassets 0.6
# still access env.directory, at one point even directly. We need to
@@ -183,25 +219,6 @@ def get_directory(self):
"""The base directory to which all paths will be relative to.
""")
- def _normalize_source_path(self, filename):
- if path.isabs(filename):
- return filename
- if self.config.get('directory') is not None:
- return super(Environment, self).abspath(filename)
- try:
- if hasattr(self._app, 'blueprints'):
- blueprint, name = filename.split('/', 1)
- directory = get_static_folder(self._app.blueprints[blueprint])
- filename = name
- else:
- # Module support for Flask < 0.7
- module, name = filename.split('/', 1)
- directory = get_static_folder(self._app.modules[module])
- filename = name
- except (ValueError, KeyError):
- directory = get_static_folder(self._app)
- return path.abspath(path.join(directory, filename))
-
def init_app(self, app):
app.jinja_env.add_extension('webassets.ext.jinja2.AssetsExtension')
app.jinja_env.assets_environment = self
View
@@ -13,7 +13,7 @@ def test_import():
from flask.ext.assets import Environment
-class TestUrlAndDirectory(object):
+class TestUrlAndDirectory(TempEnvironmentHelper):
"""By default, the 'url' and 'directory' settings of webassets are
not used in Flask-Assets; that is, the values are automatically
handled based on the configuration of the Flask app and the modules
@@ -26,6 +26,8 @@ class TestUrlAndDirectory(object):
"""
def setup(self):
+ TempEnvironmentHelper.setup(self)
+
self.app = Flask(__name__, static_path='/app_static')
import test_module
if not Blueprint:
@@ -67,10 +69,12 @@ def test_directory_auto(self):
def test_directory_custom(self):
"""A custom root directory is configured."""
- self.env.directory = '/tmp'
- assert get_all_bundle_files(Bundle('foo'), self.env) == ['/tmp/foo']
+ self.env.load_path = [self.tempdir]
+ self.create_files(['foo', 'module/bar'])
+ print get_all_bundle_files(Bundle('foo'), self.env)
+ assert get_all_bundle_files(Bundle('foo'), self.env) == [self.path('foo')]
# We do not recognize references to modules.
- assert get_all_bundle_files(Bundle('module/bar'), self.env) == ['/tmp/module/bar']
+ assert get_all_bundle_files(Bundle('module/bar'), self.env) == [self.path('module/bar')]
def test_url_auto(self):
"""Test how urls are generated if no 'url' is configured manually.

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