如何分解rakefile？

Question

我试图向一个Octopress Rakefile添加一些rake任务，并且我想将这些任务放在另一个子rakefile中，但是当我导入子rakefiles时，他们无法访问顶层的常量Rake文件。

我导入孩子的Rakefile有：

Dir.glob('rakefiles/*.rake').each { |r| import r } 

这是那种配置的，我是不能够在子文件阅读：

public_dir  = "public" # compiled site directory 
source_dir  = "source" # source file directory 
blog_index_dir = 'source' # directory for your blog's index page (if you put your index in source/blog/index.html, set this to 'source/blog') 

以下是错误：

rake aborted! undefined local variable or method `source_dir' for main:Object

Answer 1

您需要使用类变量

@public_dir  = "public" # compiled site directory 
@source_dir  = "source" # source file directory 
@blog_index_dir = 'source' # directory for your blog's index page (if you put your index in source/blog/index.html, set this to 'source/blog') 

或常量

PUBLIC_DIR  = "public" # compiled site directory 
SOURCE_DIR  = "source" # source file directory 
BLOG_INDEX_DIR = 'source' # directory for your blog's index page (if you put your index in source/blog/index.html, set this to 'source/blog')