Adds a script for checking urls

scripts/test_urls.rb

@@ -0,0 +1,92 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+# Compare blog post URLs from urls.txt against a site.
+#
+# By default a local `jekyll serve` instance is checked. Pass --live to check
+# the same paths against the published site, or --base to point anywhere else.
+#
+#     ./test_urls.rb                          # http://localhost:4000
+#     ./test_urls.rb --live                   # http://nshint.io
+#     ./test_urls.rb --base http://staging    # anything else
+
+require 'net/http'
+require 'optparse'
+require 'uri'
+
+LIVE_URL = 'http://nshint.io'
+LOCAL_URL = 'http://localhost:4000'
+URLS_FILE = 'scripts/urls.txt'
+USER_AGENT = 'Mozilla/5.0'
+TIMEOUT = 10
+MAX_REDIRECTS = 10
+
+# HTTP status of `url` after following redirects, or 0 if it could not be
+# reached at all.
+def status_code(url)
+  MAX_REDIRECTS.times do
+    response = get(url)
+    return response.code.to_i unless response.is_a?(Net::HTTPRedirection)
+
+    url = URI.join(url, response['location']).to_s
+  end
+  0
+rescue StandardError
+  0
+end
+
+def get(url)
+  uri = URI(url)
+  Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == 'https',
+                                      open_timeout: TIMEOUT, read_timeout: TIMEOUT) do |http|
+    http.request(Net::HTTP::Get.new(uri, 'User-Agent' => USER_AGENT))
+  end
+end
+
+def parse_base
+  base = LOCAL_URL
+  flags = []
+  OptionParser.new do |parser|
+    parser.banner = "Usage: #{File.basename($PROGRAM_NAME)} [--live | --base URL]"
+    parser.on('--live', "check #{LIVE_URL} instead of the local server") do
+      flags << '--live'
+      base = LIVE_URL
+    end
+    parser.on('--base URL', 'check this base URL instead of the local server') do |url|
+      flags << '--base'
+      base = url
+    end
+  end.parse!
+  abort 'error: --live and --base are mutually exclusive' if flags.size > 1
+
+  base
+end
+
+def main
+  base = parse_base
+  urls = File.readlines(URLS_FILE, chomp: true)
+             .reject(&:empty?)
+             .map { |line| URI.join(base, URI(line).path).to_s }
+
+  puts "Testing #{urls.size} URLs from #{URLS_FILE} against #{base}\n\n"
+  puts format('%-8s %-6s %s', 'Status', 'Code', 'URL')
+  puts '-' * 80
+
+  failed = []
+  urls.each do |url|
+    code = status_code(url)
+    ok = (200...300).cover?(code)
+    failed << [url, code] unless ok
+    puts format('%-8s %-6s %s', ok ? 'OK' : 'FAIL', code, url)
+  end
+
+  puts '-' * 80
+  puts "\nResults: #{urls.size - failed.size} OK, #{failed.size} failed"
+
+  return if failed.empty?
+
+  puts "\nFailed URLs:"
+  failed.each { |url, code| puts "  - #{url} (HTTP #{code})" }
+end
+
+main if $PROGRAM_NAME == __FILE__

scripts/urls.txt

@@ -0,0 +1,27 @@
+http://nshint.io/blog/2015/06/23/toggle-slow-animations/
+http://nshint.io/blog/2015/06/24/detailed-exceptions/
+http://nshint.io/blog/2015/06/25/storyboard-localization/
+http://nshint.io/blog/2015/06/27/tracking-drawing-errors/
+http://nshint.io/blog/2015/07/02/fixing-uicatalog-invalid-asset-error/
+http://nshint.io/blog/2015/07/04/how-to-animate-uilabel-properties/
+http://nshint.io/blog/2015/07/05/working-with-coretelephony-framework/
+http://nshint.io/blog/2015/07/12/shared-breakpoints/
+http://nshint.io/blog/2015/07/16/uicollectionviews-now-have-easy-reordering/
+http://nshint.io/blog/2015/07/23/run-script-phase-reporting/
+http://nshint.io/blog/2015/08/03/law-of-demeter/
+http://nshint.io/blog/2015/08/04/using-sql-as-date-formatter/
+http://nshint.io/blog/2015/08/09/nsprogressreporting/
+http://nshint.io/blog/2015/08/17/autolayout-breakpoints/
+http://nshint.io/blog/2015/08/24/dont-forget-about-uimotioneffects/
+http://nshint.io/blog/2015/09/02/autolayout-and-nslocalizedstring/
+http://nshint.io/blog/2015/09/14/logging-excessive-blocks-on-the-main-thread/
+http://nshint.io/blog/2015/09/23/uitraitcollection-trick/
+http://nshint.io/blog/2015/10/07/easy-cast-with-_ObjectiveCBridgeable/
+http://nshint.io/blog/2015/10/08/bluetooth-low-energy-the-fun-way/
+http://nshint.io/blog/2015/10/10/working-with-cfunction-pointers-in-swift/
+http://nshint.io/blog/2015/10/23/noescape-attribute/
+http://nshint.io/blog/2016/05/02/wrapping-apis-using-the-builder-pattern/
+http://nshint.io/blog/2019/04/08/testing-the-camera-on-the-simulator/
+http://nshint.io/blog/2019/05/10/testing-codable/
+http://nshint.io/blog/2019/07/13/complete-flows-partial-models/
+http://nshint.io/blog/2020/07/07/array-backwards-compatibility/