Merge pull request #4195 from madjar/master

Review PR in travis with nox-review

.travis.yml

@@ -0,0 +1,3 @@
+language: python
+python: "3.4"
+script: ./maintainers/scripts/travis-nox-review-pr.sh

maintainers/scripts/travis-nox-review-pr.sh

@@ -0,0 +1,26 @@
+#! /usr/bin/env bash
+set -e
+
+# Install Nix
+bash <(curl https://nixos.org/nix/install)
+source $HOME/.nix-profile/etc/profile.d/nix.sh
+
+# Make sure we can use hydra's binary cache
+sudo mkdir /etc/nix
+echo "binary-caches = http://cache.nixos.org http://hydra.nixos.org" | sudo tee /etc/nix/nix.conf
+echo "trusted-binary-caches = http://hydra.nixos.org" | sudo tee -a /etc/nix/nix.conf
+
+if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then
+    echo "Not a pull request, checking evaluation"
+    nix-env -f. -qaP --drv-path
+    exit 0
+fi
+
+echo "Installing nox"
+git clone https://github.com/madjar/nox
+pip install -e nox
+
+echo "Reviewing PR"
+# The current HEAD is the PR merged into origin/master, so we compare
+# against origin/master
+nox-review wip --against origin/master