Add util script to check for broken links.

util/check-links.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python2
+
+from subprocess import Popen, PIPE
+
+import os
+import urllib2
+import sys
+
+utilDir = os.path.dirname(os.path.realpath(__file__))
+
+ignores = ['localhost', '127.0.0.1', 'your-server', 'docker-ip',
+           'ghbtns', 'sphinx-doc']
+def ignoreURL(url):
+    for ignore in ignores:
+        if ignore in url:
+            return True
+    return False
+
+hdr = {
+    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
+    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+    'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
+    'Accept-Encoding': 'none',
+    'Accept-Language': 'en-US,en;q=0.8',
+    'Connection': 'keep-alive'
+}
+
+dirs = ['api-docs', 'batch-represent', 'docs', 'evaluation',
+        'openface', 'training', 'util']
+dirs = [os.path.join(utilDir, '..', d) for d in dirs]
+cmd = ['grep', '-I', '--no-filename',
+       '-o', '\(http\|https\)://[^"\')}`<> ]*',
+       '-R'] + dirs + \
+       ['--exclude-dir=_build']
+
+p = Popen(cmd, stdout=PIPE)
+out = p.communicate()[0]
+urls = set(out.split())
+
+badURLs = []
+for url in urls:
+    if not ignoreURL(url):
+        if url.endswith('.'):
+            url = url[:-1]
+        print("+ {}".format(url))
+        try:
+            req = urllib2.Request(url, headers=hdr)
+            resp = urllib2.urlopen(req)
+        except Exception as e:
+            print("  + Error:\n\n")
+            print(e)
+            print("\n\n")
+            badURLs.append(url)
+
+print('\nFound {} bad of {} URLs'.format(len(badURLs), len(urls)))
+if len(badURLs) > 0:
+    print("\n\n=== Bad URLs.\n")
+    for url in badURLs:
+        print("+ {}".format(url))
+    sys.exit(-1)