.travis.yml

os: osx
osx_image: xcode10.2

# do not build tagged commits
# this way we avoid rebuilding upon successful deployment (see below)
if: tag IS blank

language: cpp

# cache V8 artifacts across stages
cache:
  # large cache requires large timeout for transfer
  timeout: 1800
  directories:
    - ./v8build

jobs:
  include:
    # separate fetching and building of V8 into multiple shared-cache stages to avoid hitting the 50 minute time limit
    - stage: fetch-v8
      install: ./.travis/fetch-v8.sh
      script: skip
      # include `skip-stages` anywhere in the commit message to skip all of these V8-related stages
      # when the cache is up-to-date, this saves a lot of time
      if: commit_message !~ /skip-stages/

    # build dependencies
    - stage: build-v8-stage-1
      install: ./.travis/build-v8.sh antlr4 icu inspector torque v8_libbase v8_libplatform v8_libsampler
      script: skip
      if: commit_message !~ /skip-stages/
    - stage: build-v8-stage-2
      install: ./.travis/build-v8.sh v8_base
      script: skip
      if: commit_message !~ /skip-stages/

    # finally build V8
    - stage: build-v8-stage-3
      install: ./.travis/build-v8.sh d8 v8
      script: skip
      if: commit_message !~ /skip-stages/

    # now build and deploy MultiChain
    - stage: build-multichain
      addons:
        # use addon instead of `brew install` since it does not exit with 1
        # if packages are already installed
        homebrew:
          packages:
            - autoconf
            - automake
            - boost
            - berkeley-db4
            - libtool
            - nasm
            - openssl
            - pkg-config
            - python
            - rename

      install:
        # uninstall pre-installed boost and use 1.57
        - brew uninstall --ignore-dependencies boost
        - brew install boost@1.57
        - brew link boost@1.57 --force

        # reinstall python, for some reason the default installation errors on importing hashlib
        - brew uninstall --ignore-dependencies python@2
        - brew install python@2

        # make V8 libraries available
        - pip install pathlib2
        - python ./depends/v8_data_lib.py --multichain $(pwd)

        # hide dynamic libraries from the build system so we get a static build
        - rename -e 's/.dylib/.dylib.hidden/' /usr/local/opt/boost\@1.57/lib/*.dylib
        - rename -e 's/.dylib/.dylib.hidden/' /usr/local/opt/berkeley-db\@4/lib/*.dylib

        # reinstall OpenSSL AFTER reinstalling python, but with static libraries only
        - sed -i '' 's/^    shared$/    no-shared/' /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/openssl.rb
        - brew reinstall openssl --build-from-source
        - export CPPFLAGS=-I/usr/local/opt/openssl/include
        - export LDFLAGS=-L/usr/local/opt/openssl/lib

        # disable all warnings to reduce build verbosity
        - export CXXFLAGS=-w
        - ./autogen.sh
        - ./configure --with-gui=no --with-libs=no --with-miniupnpc=no --with-boost=/usr/local/opt/boost\@1.57
        - make -j2

      script:
        # tiny test
        - mkdir /tmp/mc-test
        - ./src/multichain-util create test 20006 -datadir=/tmp/mc-test -rpcpassword=rpcpass
        - ./src/multichaind test 20006 -daemon -datadir=/tmp/mc-test -pid=/tmp/mc-test/test/multichain.pid
        - ./src/multichain-cli test -datadir=/tmp/mc-test getblockchaininfo
        - ./src/multichain-cli test -datadir=/tmp/mc-test stop

      after_success:
        # get the upstream so we can figure out how far behind we are
        - git remote add upstream https://github.com/MultiChain/multichain.git
        - git fetch upstream

        # number of commits that have occurred since we last merged
        - MISSED_UPSTREAM_COMMITS=$(git rev-list --count ${TRAVIS_BRANCH}..upstream/${TRAVIS_BRANCH})

        # skip this many commits (may be zero) in order to get the hash of the last upstream commit we merged
        - LAST_UPSTREAM_COMMIT_HASH=$(git rev-list --max-count 1 --skip ${MISSED_UPSTREAM_COMMITS} upstream/${TRAVIS_BRANCH})
        - LAST_UPSTREAM_COMMIT_DATE_ISO=$(git show ${LAST_UPSTREAM_COMMIT_HASH} --format=%ai --no-patch)
        - LAST_UPSTREAM_COMMIT_DATE=$(TZ=UTC date -j -f "%Y-%m-%d %H:%M:%S %z" "${LAST_UPSTREAM_COMMIT_DATE_ISO}" "+%Y%m%dT%H%M%S")

        # this names the deployed tag and enables the deploy phase
        - export TRAVIS_TAG=${TRAVIS_BRANCH}-${LAST_UPSTREAM_COMMIT_DATE}

      before_deploy:
        # release directory
        - RELEASE_DIR=./multichain-${TRAVIS_BRANCH}
        - mkdir ${RELEASE_DIR}

        # generate small README
        - LAST_UPSTREAM_COMMIT_INFO=$(git show ${LAST_UPSTREAM_COMMIT_HASH} --format=oneline --no-patch)
        - echo "Build of ${TRAVIS_BRANCH} at ${LAST_UPSTREAM_COMMIT_INFO} (${LAST_UPSTREAM_COMMIT_DATE_ISO})" > ${RELEASE_DIR}/README
        - echo "https://github.com/MultiChain/multichain/tree/${LAST_UPSTREAM_COMMIT_HASH}" >> ${RELEASE_DIR}/README

        # copy binaries
        - cp ./src/multichain-cli ${RELEASE_DIR}
        - cp ./src/multichain-util ${RELEASE_DIR}
        - cp ./src/multichaind ${RELEASE_DIR}
        - cp ./src/multichaind-cold ${RELEASE_DIR}

        # name and build the archive
        - LAST_UPSTREAM_COMMIT_HASH_SHORT=$(git show $LAST_UPSTREAM_COMMIT_HASH --format=%h --no-patch)
        - RELEASE_ARCHIVE=./multichain-${TRAVIS_BRANCH}-${LAST_UPSTREAM_COMMIT_HASH_SHORT}-${TRAVIS_OS_NAME}.tar.gz
        - tar czf ${RELEASE_ARCHIVE} ${RELEASE_DIR}

        # create checksums for archive
        - RELEASE_ARCHIVE_SHA1=${RELEASE_ARCHIVE}.sha1
        - shasum -a 1 ${RELEASE_ARCHIVE} | cut -d ' ' -f 1 > ${RELEASE_ARCHIVE_SHA1}
        - RELEASE_ARCHIVE_SHA256=${RELEASE_ARCHIVE}.sha256
        - shasum -a 256 ${RELEASE_ARCHIVE} | cut -d ' ' -f 1 > ${RELEASE_ARCHIVE_SHA256}

        # print information to build log for possible later verification
        - echo -e "Deploying ${RELEASE_ARCHIVE}\nSize   $(stat -f "%z" ${RELEASE_ARCHIVE})\nSHA1   $(< ${RELEASE_ARCHIVE_SHA1})\nSHA256 $(< ${RELEASE_ARCHIVE_SHA256})"

      deploy:
        name: "${TRAVIS_BRANCH} at ${LAST_UPSTREAM_COMMIT_HASH_SHORT}"
        body: "Build of https://github.com/MultiChain/multichain/tree/${LAST_UPSTREAM_COMMIT_HASH_SHORT} (build log available at ${TRAVIS_BUILD_WEB_URL})"
        # deploy as GitHub release
        provider: releases
        # unencrypted GitHub OAuth token, generated using `travis setup releases` and set in Travis settings
        # this means you have to answer `no` when prompted whether to encrypt the API key
        # instead, add an environment variable `GITHUB_OAUTH_TOKEN` to your repository settings in Travis,
        # and select its value not to be displayed in the build log
        api_key: ${GITHUB_OAUTH_TOKEN}
        file:
          - ${RELEASE_ARCHIVE}
          - ${RELEASE_ARCHIVE_SHA1}
          - ${RELEASE_ARCHIVE_SHA256}
        # otherwise Travis would clean out generated archive
        skip_cleanup: true
        # for the same tag the file can be overwritten
        overwrite: true
        on:
          repo: ${TRAVIS_REPO_SLUG}
          # fulfilled because we set TRAVIS_TAG
          tags: true