Add python3 support to gitiles recipe module

This change omits python3 support for resources/gerrit_client.py

Bug: 1227140
Change-Id: Ibc8d9f1fbd28008959991688ced5818f0188f905
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3012233
Commit-Queue: Anthony Polito <apolito@google.com>
Reviewed-by: Anthony Polito <apolito@google.com>

recipes/README.recipes.md

@@ -588,16 +588,16 @@ DEPRECATED. Consider using gerrit.get_change_description instead.
 
 [DEPS](/recipes/recipe_modules/gitiles/__init__.py#5): [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step], [recipe\_engine/url][recipe_engine/recipe_modules/url]
 
-#### **class [Gitiles](/recipes/recipe_modules/gitiles/api.py#11)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
+#### **class [Gitiles](/recipes/recipe_modules/gitiles/api.py#17)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 Module for polling a git repository using the Gitiles web interface.
 
-— **def [canonicalize\_repo\_url](/recipes/recipe_modules/gitiles/api.py#216)(self, repo_url):**
+— **def [canonicalize\_repo\_url](/recipes/recipe_modules/gitiles/api.py#222)(self, repo_url):**
 
 Returns a canonical form of repo_url. If not recognized, returns as is.
     
 
-— **def [commit\_log](/recipes/recipe_modules/gitiles/api.py#114)(self, url, commit, step_name=None, attempts=None):**
+— **def [commit\_log](/recipes/recipe_modules/gitiles/api.py#120)(self, url, commit, step_name=None, attempts=None):**
 
 Returns: (dict) the Gitiles commit log structure for a given commit.
 
@@ -607,7 +607,7 @@ Args:
   * step_name (str): If not None, override the step name.
   * attempts (int): Number of times to try the request before failing.
 
-— **def [download\_archive](/recipes/recipe_modules/gitiles/api.py#156)(self, repository_url, destination, revision='refs/heads/master'):**
+— **def [download\_archive](/recipes/recipe_modules/gitiles/api.py#162)(self, repository_url, destination, revision='refs/heads/master'):**
 
 Downloads an archive of the repo and extracts it to `destination`.
 
@@ -623,7 +623,7 @@ Args:
   * revision (str): The ref or revision in the repo to download. Defaults to
     'refs/heads/master'.
 
-— **def [download\_file](/recipes/recipe_modules/gitiles/api.py#130)(self, repository_url, file_path, branch='master', step_name=None, attempts=None, \*\*kwargs):**
+— **def [download\_file](/recipes/recipe_modules/gitiles/api.py#136)(self, repository_url, file_path, branch='master', step_name=None, attempts=None, \*\*kwargs):**
 
 Downloads raw file content from a Gitiles repository.
 
@@ -637,7 +637,7 @@ Args:
 Returns:
   Raw file content.
 
-— **def [log](/recipes/recipe_modules/gitiles/api.py#68)(self, url, ref, limit=0, cursor=None, step_name=None, attempts=None, \*\*kwargs):**
+— **def [log](/recipes/recipe_modules/gitiles/api.py#74)(self, url, ref, limit=0, cursor=None, step_name=None, attempts=None, \*\*kwargs):**
 
 Returns the most recent commits under the given ref with properties.
 
@@ -660,17 +660,17 @@ Returns:
   Cursor can be used for subsequent calls to log for paging. If None,
   signals that there are no more commits to fetch.
 
-— **def [parse\_repo\_url](/recipes/recipe_modules/gitiles/api.py#205)(self, repo_url):**
+— **def [parse\_repo\_url](/recipes/recipe_modules/gitiles/api.py#211)(self, repo_url):**
 
 Returns (host, project) pair.
 
 Returns (None, None) if repo_url is not recognized.
 
-— **def [refs](/recipes/recipe_modules/gitiles/api.py#56)(self, url, step_name='refs', attempts=None):**
+— **def [refs](/recipes/recipe_modules/gitiles/api.py#62)(self, url, step_name='refs', attempts=None):**
 
 Returns a list of refs in the remote repository.
 
-— **def [unparse\_repo\_url](/recipes/recipe_modules/gitiles/api.py#212)(self, host, project):**
+— **def [unparse\_repo\_url](/recipes/recipe_modules/gitiles/api.py#218)(self, host, project):**
 
 Generates a Gitiles repo URL. See also parse_repo_url.
 ### *recipe_modules* / [gsutil](/recipes/recipe_modules/gsutil)

recipes/recipe_modules/gitiles/api.py

@@ -2,8 +2,14 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import division
+
 import base64
-import urlparse
+
+try:
+  import urlparse
+except ImportError:  # pragma: no cover
+  import urllib.parse as urlparse
 
 from recipe_engine import recipe_api
 

recipes/recipe_modules/gitiles/resources/gerrit_client.py

@@ -10,6 +10,8 @@ Example usage:
     -u https://chromium.googlesource.com/chromium/src/+log
 """
 
+from __future__ import print_function
+
 import argparse
 import json
 import logging
@@ -17,8 +19,13 @@ import os
 import sys
 import tarfile
 import time
-import urllib
-import urlparse
+
+try:
+  from urllib import urlencode
+  import urlparse
+except ImportError:  # pragma: no cover
+  from urllib.parse import urlencode
+  import urllib.parse as urlparse
 
 DEPOT_TOOLS = os.path.abspath(
     os.path.join(os.path.dirname(__file__), os.pardir, os.pardir, os.pardir,
@@ -35,7 +42,7 @@ def reparse_url(parsed_url, query_params):
       path=parsed_url.path,
       params=parsed_url.params,
       fragment=parsed_url.fragment,
-      query=urllib.urlencode(query_params, doseq=True))
+      query=urlencode(query_params, doseq=True))
 
 
 def gitiles_get(parsed_url, handler, attempts):

recipes/recipe_modules/gitiles/test_api.py

@@ -25,7 +25,7 @@ class GitilesTestApi(recipe_test_api.RecipeTestApi):
                 new_files=['%s.py' % (chr(i + ord('a')))],
                 email='fake_%s@fake_%i.email.com' % (s, i),
             )
-            for i in xrange(n)
+            for i in range(n)
         ],
     }
     if cursor: