我知道这个问题已经被提出了一千次,我感觉我已经读过大部分其他帖子,但我似乎仍然无法解决这个问题。
我刚开始学习Ruby on Rails,并尝试在我的项目中使用Compass/Sass/Suzy。它们都可以工作(大多数情况下),但是我在compass编译器方面遇到了一些问题。
首先,使用bundle exec compass watch
(有或没有--poll
)没有任何作用。(我理解这个命令的目的是实时重新编译,我不需要刷新页面就可以看到我的更改,但我可能是错的)
其次,当我在.scss文件进行更改后刷新页面,需要30-35秒才能完成编译并重新加载页面。这是无法忍受的。我读到最新的'compass-rails'存在一些问题,但是大多数说这话的帖子都是几年前的。最新的compass-rails是否完美无缺,还是有一个常见的问题导致这种情况?
由于我只是在学习阶段,我只有一个控制器/视图/scss文件,因此我非常确定我没有任何依赖循环问题。
以下是我当前设置的项目方式。(我认为它已经正确设置,但也许有人可以指出我做错了什么。)
- 我创建了一个新的rails项目并生成了一个'welcome'控制器
- 修改了我的application.rb
application.rb
require_relative 'boot'
require 'rails/all'
require 'susy'
require 'compass'
require 'breakpoint'
require 'normalize-scss'
# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)
module PersonalWeb
class Application < Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
end
end
- Modified my Gemfile
Gemfile
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.0.0', '>= 5.0.0.1'
# Use mysql as the database for Active Record
gem 'mysql2', '>= 0.3.18', '< 0.5'
# Use Puma as the app server
gem 'puma', '~> 3.0'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.2'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
gem 'susy'
gem 'compass-rails'
gem 'breakpoint'
gem 'normalize-scss'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platform: :mri
end
group :development do
# Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
gem 'web-console'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
- 运行命令
bundle
- 将application.css重命名为application.css.scss
application.css.scss
@import "compass";
@import "breakpoint";
@import "welcome.scss";
另外需要注意的是,每次编译时Compass都会抛出一个已弃用警告。我按照这里的建议来解决它,似乎已经停止了。不确定它是否涉及到问题,但为了防止我的无知妨碍解决方案,我想提一下。
编辑
我想在这里放上我的welcome.scss,以防我在这里做了一些愚蠢的事情。
welcome.scss
@import "normalize";
@import "partials/variables";
@import "partials/layout";
@import "partials/mixins";
@import "grids";
header {
height: 100px;
background: $blue;
color: $white;
margin-bottom: 10px;
padding: 10px;
}
.wrapper {
background: $white;
margin: 0 auto;
max-width: 900px;
}
nav {
text-align: center;
ul, li {
padding: 0;
}
li {
background: $gray;
}
a {
text-decoration: none;
color: $white;
&:hover {
color: $yellow;
}
}
}
.first-row {
height: 100px;
margin-bottom: 10px;
padding: 10px;
}
.first-row .first {
background: $yellow;
height: 100%;
}
.first-row .second {
height: 100%;
}
.first-row .second div {
background: $orange;
height: 100%;
}
.pic-gallery {
div {
background: $violet;
height: 100%;
margin-bottom: 10px;
padding: 10px;
}
}
.content-bar {
div {
background: $green;
height: 100%;
margin-bottom: 10px;
padding: 10px;
}
}
footer {
height: 100px;
background: $blue;
color: $white;
margin-top: 10px;
padding: 10px;
clear: both;
}
header {
@include full;
.logo {
@include span(wide 1.75);
@include border-radius(0px);
}
h1 {
@include span(last 2);
@include breakpoint((max-width 50em)){
@include span(last 2);
}
}
}
.wrapper {
@include container;
}
编辑2 我应该提一下,我使用的是Windows 10。
application.rb
中 require gems,因为这一行Bundler.require(*Rails.groups)
已经包含了它们。 - max@import "welcome";
而不是welcome.scss
。 - max.css.scss
文件(https://github.com/rails/sass-rails/issues/290)。而且这也是多余和愚蠢的,因为`.scss`扩展名告诉我们它编译成CSS。 - maxbundle
。添加了gemsusy
。再次运行bundle。运行bundle exec compass install susy
。我尝试添加config.compass.require "susy"
,但它说未知变量config
,所以我把它拿掉了。添加了一个控制器并运行它,但是scss更改需要20-30秒才能编译。 - Nick