[英]Calling a method inside a do block in ruby
我正在尝试将所有 git 子模块中的文件包含在 gemspec 文件中。 gemspec 如下
require File.expand_path(File.dirname(__FILE__)) + '/lib/nameofgem.rb'
# Gets all files, from all submodules, and returns them
# as an array
def getSubmoduleFiles()
files = []
# get an array of submodule dirs by executing 'pwd' inside each submodule
`git submodule --quiet foreach pwd`.split("\n").each do |submodule_path|
gemRootDir = File.dirname(File.expand_path(__FILE__))
# for each submodule, change working directory to that submodule
Dir.chdir(submodule_path) do
submodule_files = getSubmoduleFiles()
# issue git ls-files in submodule's directory
submodule_files + `git ls-files`.split("\n")
puts "found:"
puts submodule_files.to_s
puts
# prepend the submodule path to create absolute file paths
submodule_files_fullpaths = submodule_files.map do |filename|
"#{submodule_path}/#{filename}"
end
# remove leading path parts to get paths relative to the gem's root dir
# (this assumes, that the gemspec resides in the gem's root dir)
submodule_files_paths = submodule_files_fullpaths.map do |filename|
filename.gsub "#{gemRootDir}/", ""
end
# add relative paths to gem.files
files += submodule_files_paths
end
end
return files
end
Gem::Specification.new do |s|
s.name = 'name'
s.version = "1.1.1"
s.executables << 'exec'
s.licenses = ['LICENCE']
s.summary = "Does stuff"
s.description = "Longer description of stuff"
s.authors = ["author"]
s.email = 'my@email'
s.files = `git ls-files -- lib/*`.split("\n")
s.homepage = 'https://example.com/'
s.required_ruby_version = '>= 2.0.0'
s.files += getSubmoduleFiles()
end
但是在 do 块中,我得到
Invalid gemspec in [nameofgem.gemspec]: undefined method `getSubmoduleFiles' for Gem::Specification:::Module
我究竟做错了什么? 为什么不能从 do 块中调用该函数?
似乎 gemspec 文件在作用域和命名空间方面做了一些奇怪的事情(在整个文件中,而不仅仅是在 gemspec 块本身内),但是在我的头撞在我的桌子上 15 分钟后,又喝了一口啤酒以减轻对存在的折磨由于我无法在 gemspec 中调用函数,我想出了一个相当干净的解决方案:只是坚持self.
在定义和调用中的函数名前面,像这样:
def self.foo
puts 'It works :)'
end
Gem::Specification.new do |s|
# ...
self.foo # should print 'It works :)' instead of erroring out
# ...
end
为什么这是必要的,为什么在万维网上的任何地方似乎都没有其他人问过或回答过这个问题,我没有最模糊的想法,但我们走了。
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