Build documentation on Travis.

Author: RubenVerborgh

.travis.yml

@@ -7,8 +7,10 @@ script:
   - npm run lint
   - npm test
   - npm run browser
+  - npm run docs
 after_success:
   - npm run coveralls
+  - ./.travis_build_pages
 cache:
   directories:
     - node_modules

.travis_build_pages

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Only publish from the main repository's master branch
+REPO_NAME="RubenVerborgh/N3.js"
+if [ "$TRAVIS_REPO_SLUG" != "$REPO_NAME" ] || [ "$TRAVIS_BRANCH" != "master" ] || [ "$TRAVIS_PULL_REQUEST" != "false" ]; then exit; fi
+echo -e "Generating gh-pages...\n"
+
+# Checkout the gh-pages branch
+REPO_PATH=$PWD
+pushd $HOME
+git clone --quiet --branch=gh-pages https://${GH_TOKEN}@github.com/$REPO_NAME gh-pages 2>&1 > /dev/null
+cd gh-pages
+
+# Don't update if already at the latest version
+if [[ `git log -1 --pretty=%B` == *$TRAVIS_COMMIT* ]]; then exit; fi
+
+# Update pages
+rm -r docs 2> /dev/null
+cp -r $REPO_PATH/docs .
+
+# Commit and push latest version
+git add .
+git config user.name  "Travis"
+git config user.email "[email protected]"
+git commit -m "Update to $TRAVIS_COMMIT."
+git push -fq origin gh-pages 2>&1 > /dev/null
+popd