flask-assets - sass不要在@import scss指令

Question

我有使用buildout环境的烧瓶应用程序

./bin/pip show flask | grep Version
Version: 0.10.1
./bin/pip show flask-assets | grep Version
Version: 0.10

src 文件夹中的

src / setup.py有以下字符串

setup(
    name = 'spf',
    install_requires = [
        'flask',
        'flask-assets',
    ],
    entry_points = {
        'console_scripts': [
            'spf_dev = spf.manage:dev', /* see manage.py dev function */
        ],
    },
}

生成的bin / spf_dev我有 src / spf / manage.py，代码如下

from flask.ext import assets
from . import env

def init (app):
    manager = script.Manager(app)

    manager.add_command(
        'assets',
        assets.ManageAssets(app.assets),
    )
    return manager

def dev ():
    init(env.dev.app).run()

我使用的烧瓶环境初始化 SRC / SPF / ENV / dev.py

from spf import init
app = init({
    'ASSETS_DIR': 'src/spf/static/assets',
    'ASSETS_URL': '/assets/',

    'SASS_STYLE': 'compressed',

    'UGLIFYJS_EXTRA_ARGS': (
        '-c',
        '--screw-ie8',
    ),

})

我实现了返回wsgi app的init函数 SRC / SPF /的初始化的.py

import flask
from . import assets

def init (env_config=None):
    app = flask.Flask(
        'spf',
        static_url_path='',
    )

    app.config.update(evn_config)
    app.assets = assets.Assets(app)
    return app

资产模块与Bundle注册 SRC / SPF / assets.py

from flask.ext.assets import (
    Environment,
    Bundle,
)

class Assets (Environment):
    def __init__ (self, app):
        super(Assets, self).__init__(app)

        if 'ASSETS_DIR' in app.config:
            self.directory = app.config['ASSETS_DIR']

        if 'ASSETS_URL' in app.config:
            self.url = app.config['ASSETS_URL']

        if 'SASS_STYLE' in app.config:
            self.config['sass_style'] =  app.config['SASS_STYLE']

        if 'UGLIFYJS_EXTRA_ARGS' in app.config:
            self.config['UGLIFYJS_EXTRA_ARGS'] = \
                app.config['UGLIFYJS_EXTRA_ARGS']

        self.register('theme.css', Bundle(
            'scss/theme.scss',
            filters='scss',
            output='theme.css',
        ))

        self.append_path('src/assets')

src / assets / scss / theme.scss

@import 'btn-o';

src / assets / scss / _btn-o.scss存在，非空并且具有0777访问权限

但是当我跑步时

buildout -c src/buildout.cfg
./bin/spf_dev assets -v build

我有错误

Building bundle: theme.css
Failed, error was: sass: subprocess had error: stderr=Error: File to import not found or unreadable: ./btn-o. on line 1 of standard input
  Use --trace for backtrace. , stdout=, returncode=65

我已阅读https://github.com/miracle2k/webassets/blob/master/src/webassets/filter/sass.py#L36

但我不明白;-( 在使用self.append_path（＆＃39; src / assets＆＃39;）之后，为什么sass不使用src / assets来解决来自stdin的@import指令中的相对路径？

Answer 1

您需要为sass过滤器添加一个加载路径，以使其适用于3.4.14

SELECT userID INTO #table 
FROM users 
WHERE LastName = CASE 
                 WHEN @LastName = 'All' THEN LastName 
                 ELSE @LastName END

然后，当您注册捆绑包时：

sass = get_filter('scss')
sass.load_paths = [os.path.join(app.static_folder, 'scss')]

Answer 2

问题出在SASS 3.4.14

中

解决方法是

sudo gem uninstall sass 
sudo gem install sass -v 3.4.13