compass/examples/downloader.rb

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require 'net/http'
require 'fileutils'
require 'rubygems'
require 'zip/zip'
def fetch(uri_str, limit = 10)
raise ArgumentError, 'HTTP redirect too deep' if limit == 0
url = URI.parse(uri_str)
http = Net::HTTP.new(url.host, url.port)
http.open_timeout = 2
http.read_timeout = 30
response = http.start do |http|
puts "getting #{url.path}"
http.request_get(url.path)
end
case response
when Net::HTTPSuccess then response
when Net::HTTPRedirection then fetch(response['location'], limit - 1)
else
response.error!
end
end
def install_from_github(user, project, ext_name, working_directory = Dir.pwd)
download_link = "http://github.com/#{user}/#{project}/zipball/master"
extdir = File.join(working_directory,'extensions')
if !File.exists?(extdir)
begin
puts "Downloading the #{ext_name} plugin into #{extdir}."
FileUtils.mkdir(extdir)
zipfile = File.join(extdir, "#{ext_name}.zip")
open(zipfile, "wb") do |tgz|
tgz << fetch(download_link).body
end
puts "Unzipping the #{ext_name} plugin."
Zip::ZipFile::open(zipfile) { |zf|
zf.each { |e|
fpath = File.join(extdir, e.name)
FileUtils.mkdir_p(File.dirname(fpath))
zf.extract(e, fpath)
}
}
File.unlink(zipfile)
funky_directory = Dir.glob(File.join(extdir,"#{user}-#{project}-*"))[0]
FileUtils.mv(funky_directory, File.join(extdir, ext_name))
puts "#{ext_name} installed."
rescue Exception => e
FileUtils.rm_rf(extdir)
raise
end
end
end