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# -- encoding: utf-8 --
require 'mini_exiftool'
require 'open3'
unless ARGV.size == 1
puts "usage: ruby #{__FILE__} URI"
puts " i.e.: ruby #{__FILE__} http://farm6.staticflickr.com/5015/5458914734_8fd3f33278_o.jpg"
exit -1
end
arg = ARGV.shift
####################################
# Helper methods
####################################
def time
a = Time.now
yield
b = Time.now
b - a
end
def print_statistics name, without_fast, fast, fast2
puts '-' * 40
puts name, "\n"
puts format 'without fast: %0.2fs', without_fast
puts format 'fast : %0.2fs', fast
puts format 'fast2 : %0.2fs', fast2
puts
puts format 'speedup fast : %0.2f', without_fast / fast
puts format 'speedup fast2: %0.2f', without_fast / fast2
puts '-' * 40
puts
end
####################################
# Plain Ruby with standard library
####################################
require 'net/http'
uri = URI(arg)
def read_from_http uri, io
Thread.new(uri, io) do |uri, io|
Net::HTTP.start(uri.host, uri.port) do |http|
request = Net::HTTP::Get.new uri
http.request request do |response|
response.read_body do |chunk|
io.write chunk
end
end
end
io.close
end
end
without_fast = time do
output, input = IO.pipe
read_from_http uri, input
MiniExiftool.new output
end
fast = time do
output, input = IO.pipe
read_from_http uri, input
MiniExiftool.new output, fast: true
end
fast2 = time do
output, input = IO.pipe
read_from_http uri, input
MiniExiftool.new output, fast2: true
end
print_statistics 'net/http', without_fast, fast, fast2
####################################
# curl
####################################
without_fast = time do
input, output = Open3.popen3("curl -s #{arg}")
input.close
MiniExiftool.new output
end
fast = time do
input, output = Open3.popen3("curl -s #{arg}")
input.close
MiniExiftool.new output, fast: true
end
fast2 = time do
input, output = Open3.popen3("curl -s #{arg}")
input.close
MiniExiftool.new output, fast2: true
end
print_statistics 'curl', without_fast, fast, fast2
####################################
# wget
####################################
without_fast = time do
input, output = Open3.popen3("wget -q -O - #{arg}")
input.close
MiniExiftool.new output
end
fast = time do
input, output = Open3.popen3("wget -q -O - #{arg}")
input.close
MiniExiftool.new output, fast: true
end
fast2 = time do
input, output = Open3.popen3("wget -q -O - #{arg}")
input.close
MiniExiftool.new output, fast2: true
end
print_statistics 'wget', without_fast, fast, fast2
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