dn42-scripts/scripts/utils.rb

54 lines
967 B
Ruby
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require "ostruct"
require "fileutils"
require "erb"
require "json"
require "pathname"
require "pry"
class Registry
PATH = Pathname.new(File.expand_path("../../registry.json", __FILE__))
def initialize
@data = JSON.load(File.open(Registry::PATH))
end
attr_accessor :data
def save
f = File.open(Registry::PATH, "w+")
f.puts JSON.pretty_generate(@data)
f.close
end
end
def atomic_write(path, content)
temp_path = path.to_s + ".tmp"
File.open(temp_path, 'w+') do |f|
f.write(content)
end
FileUtils.mv(temp_path, path)
end
def sh(cmd, *args)
puts "$ #{cmd} "+ args.map {|a| "'#{a}'" }.join(" ")
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system(cmd, *args)
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end
def die(msg)
$stderr.puts(msg)
exit(1)
end
class TemplateContext < OpenStruct
def get_binding
binding
end
end
class Template
def initialize(path)
@erb = ERB.new(File.read(path), nil, '-')
end
def render(params={})
@erb.result(TemplateContext.new(params).get_binding)
end
end