[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/third_party/oauth2client/scripts/fetch_gae_sdk.py

Index: third_party/gsutil/third_party/oauth2client/scripts/fetch_gae_sdk.py
diff --git a/third_party/gsutil/third_party/oauth2client/scripts/fetch_gae_sdk.py b/third_party/gsutil/third_party/oauth2client/scripts/fetch_gae_sdk.py
new file mode 100755
index 0000000000000000000000000000000000000000..49d2e97eaaac1554bbb308313fc7ee0126f3173d
--- /dev/null
+++ b/third_party/gsutil/third_party/oauth2client/scripts/fetch_gae_sdk.py
@@ -0,0 +1,78 @@
+#!/usr/bin/env python
+"""Fetch the most recent GAE SDK and decompress it in the current directory.
+
+Usage:
+  fetch_gae_sdk.py [<dest_dir>]
+
+Current releases are listed here:
+  https://www.googleapis.com/storage/v1/b/appengine-sdks/o?prefix=featured
+"""
+
+import json
+import os
+import StringIO
+import sys
+import tempfile
+import urllib2
+import zipfile
+
+_SDK_URL = (
+    'https://www.googleapis.com/storage/v1/b/appengine-sdks/o?prefix=featured')
+
+def get_gae_versions():
+  try:
+    version_info_json = urllib2.urlopen(_SDK_URL).read()
+  except:
+    return {}
+  try:
+    version_info = json.loads(version_info_json)
+  except:
+    return {}
+  return version_info.get('items', {})
+
+def _version_tuple(v):
+  version_string = os.path.splitext(v['name'])[0].rpartition('_')[2]
+  return tuple(int(x) for x in version_string.split('.'))
+
+def get_sdk_urls(sdk_versions):
+  python_releases = [v for v in sdk_versions
+                     if v['name'].startswith('featured/google_appengine')]
+  current_releases = sorted(python_releases, key=_version_tuple, reverse=True)
+  return [release['mediaLink'] for release in current_releases]
+
+def main(argv):
+  if len(argv) > 2:
+    print 'Usage: {} [<destination_dir>]'.format(argv[0])
+    return 1
+  dest_dir = argv[1] if len(argv) > 1 else '.'
+  if not os.path.exists(dest_dir):
+    os.makedirs(dest_dir)
+
+  if os.path.exists(os.path.join(dest_dir, 'google_appengine')):
+    print 'GAE SDK already installed at {}, exiting.'.format(dest_dir)
+    return 0
+
+  sdk_versions = get_gae_versions()
+  if not sdk_versions:
+    print 'Error fetching GAE SDK version info'
+    return 1
+  sdk_urls = get_sdk_urls(sdk_versions)
+  for sdk_url in sdk_urls:
+    try:
+      sdk_contents = StringIO.StringIO(urllib2.urlopen(sdk_url).read())
+      break
+    except:
+      pass
+  else:
+    print 'Could not read SDK from any of ', sdk_urls
+    return 1
+  sdk_contents.seek(0)
+  try:
+    zip_contents = zipfile.ZipFile(sdk_contents)
+    zip_contents.extractall(dest_dir)
+  except:
+    print 'Error extracting SDK contents'
+    return 1
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[:]))