Transifex pull: made script more kind when networks fails

arduino-core/src/processing/app/i18n/python/pull.py

@@ -2,11 +2,11 @@
 #vim:set fileencoding=utf-8 sw=2 expandtab
 
 from transifex import Transifex
+import requests
+import getpass
+import sys
 
 def main():
-  import getpass
-  import sys
-
   print 'Use your account to talk with Transifex.'
   user = raw_input('Username: ')
   passwd = getpass.getpass('Password: ')
@@ -14,18 +14,32 @@ def main():
 
   for lang in sys.argv[1:]:
     fname = 'Resources_%s.po' % lang
-    print "Updating %s from Transifex..." % fname,
     sys.stdout.flush()
     try:
       lang = trans.canonical_lang(lang)
-      trans.pull(lang, fname)
+      pull(trans, lang, fname)
     except RuntimeError, e:
       print e.message
       continue
     except IOError, e:
       print e.strerror
       continue
-    print
+
+def pull(trans, lang, fname):
+  count = 0
+  print "Updating %s from Transifex...\n" % fname,
+  sys.stdout.flush()
+  while count < 5:
+    count += 1
+    try:
+      trans.pull(lang, fname)
+      return
+    except requests.exceptions.HTTPError, e:
+      print " *** Retrying %s from Transifex...\n" % fname,
+      sys.stdout.flush()
+
+  if count >= 5:
+    raise Exception("Too many retries")
 
 if __name__ == '__main__':
   main()