Introducing custom pip install in tox to be used with cached wheels.

.travis.yml

@@ -1,15 +1,13 @@
 language: python
-# command to install dependencies
+
 install:
-  - pip install tox
-  - pip install coveralls
-# run tests
+  - scripts/custom_pip_install.sh tox
+
 script:
   - tox -e py26
   - tox -e py27
   - tox -e lint
   - tox -e regression
-after_success:
-  - tox -e cover
-  - coveralls
   - scripts/update_docs.sh
+after_success:
+  - tox -e coveralls

scripts/custom_pip_install.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+# Temporarily perform default pip install before initial
+# wheelhouse is built.
+pip install "$@"

scripts/update_docs.sh

@@ -1,17 +1,37 @@
 #!/bin/bash
 
+# Copyright 2014 Google Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 set -ev
 
-# If merging to master and not a pull request, update docs.
-if [ "${TRAVIS_BRANCH}" == "master" ] && [ "${TRAVIS_PULL_REQUEST}" == "false" ]; then
+if [[ "${TRAVIS_BRANCH}" == "master" ]] && \
+       [[ "${TRAVIS_PULL_REQUEST}" == "false" ]]; then
   # Generate new set of json files in docs/json/master.
   tox -e docs
-  git submodule add -b gh-pages https://${GH_OAUTH_TOKEN}@github.com/${GH_OWNER}/${GH_PROJECT_NAME} ghpages
+  git submodule add -b gh-pages \
+      "https://${GH_OAUTH_TOKEN}@github.com/${GH_OWNER}/${GH_PROJECT_NAME}" \
+      ghpages
   cp -R docs/_build/html/* ghpages/
   cd ghpages
   git add .
   # Commit to gh-pages branch to apply changes.
   git config user.name "selfiebot"
   git commit -m "Update docs after merge to master."
-  git push https://${GH_OAUTH_TOKEN}@github.com/${GH_OWNER}/${GH_PROJECT_NAME} HEAD:gh-pages
+  git push \
+      "https://${GH_OAUTH_TOKEN}@github.com/${GH_OWNER}/${GH_PROJECT_NAME}" \
+      HEAD:gh-pages
+else
+  echo "Not in master on a non-pull request. Doing nothing."
 fi

tox.ini

@@ -11,6 +11,8 @@ deps =
     protobuf==2.6.0
 
 [testenv]
+install_command =
+    {toxinidir}/scripts/custom_pip_install.sh {opts} {packages}
 commands =
     nosetests
 deps =
@@ -21,14 +23,22 @@ deps =
 basepython =
     python2.7
 commands =
-    nosetests --with-xunit --with-xcoverage --cover-package=gcloud \
-        --nocapture --cover-erase --cover-tests --cover-branches
+    nosetests --with-xunit --with-xcoverage --cover-package=gcloud --nocapture --cover-erase --cover-tests --cover-branches
 deps =
     nose
     unittest2
     coverage
     nosexcover
 
+[testenv:coveralls]
+basepython = {[testenv:cover]basepython}
+commands =
+    {[testenv:cover]commands}
+    coveralls
+deps =
+    {[testenv:cover]deps}
+    coveralls
+
 [testenv:docs]
 basepython =
     python2.7