#!/bin/bash
set -e # Exit with nonzero exit code if anything fails

SOURCE_BRANCH="master"
TARGET_BRANCH="gh-pages"

# Pull requests and commits to other branches shouldn't try to deploy, just build to verify
if [ "$TRAVIS_PULL_REQUEST" != "false" -o "$TRAVIS_BRANCH" != "$SOURCE_BRANCH" ]; then
    echo "Skipping deploy; just doing a build."
    exit 0
fi

# Save some useful information
REPO=`git config remote.origin.url`
SSH_REPO=${REPO/https:\/\/github.com\//git@github.com:}
SHA=`git rev-parse --verify HEAD`

# Clone the existing gh-pages for this repo into out/
# Create a new empty branch if gh-pages doesn't exist yet (should only happen on first deply)
rm -rf out || exit 0

git clone $REPO out
cd out
git checkout $TARGET_BRANCH || git checkout --orphan $TARGET_BRANCH
cd ..


# Clean out existing contents
rm -rf out/**/* || exit 0

# Copy generated documentation to the new directory
cp -a docs/build/html/. out/


cd out
git config user.name "Travis CI"
git config user.email "oneview-pythonsdk@hpe.com"

# If there are no changes (e.g. this is a README update) then just bail.
if [ $(git status --porcelain | wc -l) -lt 1 ]; then
    echo "No changes to the spec on this push; exiting."
    exit 0
fi

# Commit the "changes", i.e. the new version.
# The delta will show diffs between new and old versions.
git add -A .
git commit -m "Deploy to GitHub Pages: ${SHA}"


## Get the deploy key by using Travis's stored variables to decrypt deploy_key.enc
openssl aes-256-cbc -K $encrypted_207a3e71573a_key -iv $encrypted_207a3e71573a_iv -in deploy_key.enc -out deploy_key -d


chmod 600 deploy_key

eval `ssh-agent -s`

ssh-add deploy_key


## Now that we're all set up, we can push.
git push $SSH_REPO $TARGET_BRANCH

echo "Documentation pushed to gh-pages ................................"
cd ..
rm -rf out || exit 0

echo "Documentation deploy finished ..................................."
