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#!/bin/bash
# A script to automatically deploy javadocs.
#
# This script is useful both in a travis-ci.org regular build, where it will generate
# javadocs (aggregated) via a maven build, and deploy them to github pages. This script
# is derived from instructions given in this blog article:
# http://benlimmer.com/2013/12/26/automatically-publish-javadoc-to-gh-pages-with-travis-ci/
#
# If the RELEASE_VERSION environment variable is set, then it will perform a similar
# action, but push to a versioned api docs folder, under the current user's credentials
# rather than using an encrypted secret via github's GH_TOKEN mechanism. Users who
# use the script this way must have a .ssh key which they have declared on github.com
# per the instructions here: https://help.github.com/articles/generating-ssh-keys/
#
set -euE
readonly GH_PROJECT=truth
readonly ORG=google
readonly EXPECTED_REPO_SLUG="${ORG}/${GH_PROJECT}"
if [[ -n "${RELEASE_VERSION:-}" ||
"${TRAVIS_REPO_SLUG:-}" == "$EXPECTED_REPO_SLUG" &&
"${TRAVIS_JDK_VERSION:-}" == "$JDK_FOR_PUBLISHING" &&
"${TRAVIS_PULL_REQUEST:-}" == false &&
"${TRAVIS_BRANCH:-}" == master ]]; then
echo -e "Publishing javadoc...\n"
if [ -n "${RELEASE_VERSION:-}" ]; then
# Release
version_subdir=api/${RELEASE_VERSION}
github_url="git@github.com:${EXPECTED_REPO_SLUG}.git"
commit_message="Release $RELEASE_VERSION javadoc pushed to gh-pages."
else
# Travis
version_subdir=api/latest
github_url="https://${GH_TOKEN}@github.com/${EXPECTED_REPO_SLUG}"
commit_message="Lastest javadoc on successful travis build $TRAVIS_BUILD_NUMBER auto-pushed to gh-pages."
fi
mvn javadoc:aggregate
target_dir="$(pwd)/target"
cd ${target_dir}
rm -rf gh-pages
git clone --quiet --branch=gh-pages ${github_url} gh-pages > /dev/null
cd gh-pages
if [[ -z "${RELEASE_VERSION:-}" ]]; then
git config --global user.email "travis@travis-ci.org"
git config --global user.name "travis-ci"
fi
api_version_dir="${target_dir}/gh-pages/${version_subdir}"
git rm -rf ${api_version_dir}
mv ${target_dir}/site/apidocs ${api_version_dir}
git add -A -f ${api_version_dir}
git commit -m "${commit_message}"
git push -fq origin gh-pages > /dev/null
echo -e "Published Javadoc to gh-pages.\n"
fi
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