.travis.yml

dist: trusty
sudo: required

language: python
python:
  - "2.7"
  - "3.6"

os:
  - linux

branches:
  only:
    - master
    - /^\d+\.\d+(\.\d+)?(-\S*)?$/

env:
  # Keep this Bazel version in sync with the `versions.check` directive
  # near the top of our WORKSPACE file.
  #
  # Grab the BAZEL_SHA256SUM from the Bazel releases page; e.g.:
  # bazel-0.20.0-linux-x86_64.sha256
  global:
    - BAZEL=0.22.0
    - BAZEL_SHA256SUM=8474ed28ed4998e2f5671ddf3a9a80ae9e484a5de3b8b70c8b654c017c65d363
  matrix:
    - TF_VERSION_ID=tf-nightly
    - TF_VERSION_ID=tf-nightly-2.0-preview
    - TF_VERSION_ID=  # Do not install TensorFlow in this case

cache:
  directories:
    - $HOME/.bazel-output-base

# Each bullet point is displayed in the Travis log as one collapsed line, which
# indicates how long it took. Travis will check the return code at the end. We
# can't use `set -e` in the YAML file since it might impact Travis internals.
# If inline scripts get too long, Travis surprisingly prints them twice.

before_install:
  # Travis pre-installs an old version of numpy. We uninstall it to
  # reduce the potential for strange behavior when upgrading in-place
  # for TensorFlow's numpy dependency.
  - pip uninstall -y numpy
  - pip freeze  # print installed distributions, for debugging purposes
  - |
    # Download Bazel
    bazel_binary="$(mktemp)" &&
    bazel_checksum_file="$(mktemp)" &&
    printf >"${bazel_checksum_file}" \
        '%s  %s\n' "${BAZEL_SHA256SUM}" "${bazel_binary}" &&
    for url in \
        "https://mirror.bazel.build/github.com/bazelbuild/bazel/releases/download/${BAZEL}/bazel-${BAZEL}-linux-x86_64" \
        "https://github.com/bazelbuild/bazel/releases/download/${BAZEL}/bazel-${BAZEL}-linux-x86_64" \
    ; do
      if \
          wget -t 3 -O "${bazel_binary}" "${url}" &&
          shasum -a 256 --check "${bazel_checksum_file}"; then
        break
      else
        rm -f "${bazel_binary}"
      fi
    done &&
    rm "${bazel_checksum_file}" &&
    [ -f "${bazel_binary}" ]
  - chmod +x "${bazel_binary}"
  - sudo mv "${bazel_binary}" /usr/local/bin/bazel

  # Fix Boto and Travis issue https://github.com/travis-ci/travis-ci/issues/7940
  - sudo rm -f /etc/boto.cfg

  # Storing build artifacts in this directory helps Travis cache them. This
  # will sometimes cut latency in half, when we're lucky.
  - echo "startup --output_base=${HOME}/.bazel-output-base" >>~/.bazelrc

  # Travis Trusty Sudo GCE VMs have 2 cores and 7.5 GB RAM. These settings
  # help Bazel go faster and not OOM the system.
  - echo "startup --host_jvm_args=-Xms500m" >>~/.bazelrc
  - echo "startup --host_jvm_args=-Xmx500m" >>~/.bazelrc
  - echo "startup --host_jvm_args=-XX:-UseParallelGC" >>~/.bazelrc
  - echo "build --local_resources=400,2,1.0" >>~/.bazelrc
  - echo "build --worker_max_instances=2" >>~/.bazelrc

  # Make Bazel as strict as possible, so TensorBoard will build correctly
  # for users, regardless of their Bazel configuration.
  - echo "build --worker_verbose" >>~/.bazelrc
  - echo "build --worker_sandboxing" >>~/.bazelrc
  - echo "build --spawn_strategy=sandboxed" >>~/.bazelrc
  - echo "build --genrule_strategy=sandboxed" >>~/.bazelrc
  - echo "test --test_verbose_timeout_warnings" >>~/.bazelrc

  # It's helpful to see the errors on failure.
  - echo "build --verbose_failures" >>~/.bazelrc
  - echo "test --test_output=errors" >>~/.bazelrc

  # We need to pass the PATH from our virtualenv down into our tests,
  # which is non-hermetic and so disabled by default in Bazel 0.21.0+.
  - echo "test --action_env=PATH" >>~/.bazelrc

install:
  - pip install boto3==1.9.86
  - pip install flake8==3.5.0
  - pip install futures==3.1.1
  - pip install grpcio==1.6.3
  - pip install moto==1.3.7
  - pip install yamllint==1.5.0
  - |
    # Install TensorFlow if requested
    if [ -n "${TF_VERSION_ID}" ]; then
      pip install -I "${TF_VERSION_ID}"
    else
      # Requirements typically found through TensorFlow
      pip install "absl-py>=0.7.0"
      pip install "numpy<2.0,>=1.14.5"
    fi

before_script:
  # fail the build if there are Python syntax errors or undefined names
  - flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics
  # exit-zero treats all errors as warnings.  The GitHub editor is 127 chars wide
  # a comment of '# noqa' or better yet '# noqa: <error code>' added to the code to silence flake8
  - flake8 . --count --exit-zero --ignore=E111,E114 --max-complexity=10 --max-line-length=127 --statistics
  # Lint .yaml docs files. Use '# yamllint disable-line rule:foo' to suppress.
  - yamllint -c docs/.yamllint docs docs/.yamllint
  # Make sure we aren't accidentally including work-in-progress code.
  - tensorboard/tools/do_not_submit_test.sh
  # Make sure all necessary files have the license information.
  - tensorboard/tools/license_test.sh
  # Make sure that IPython notebooks have valid Markdown.
  - tensorboard/tools/docs_list_format_test.sh

# Commands in this section should only fail if it's our fault. Travis will
# categorize them as 'failed', rather than 'error' for other sections.
script:
  # Note: bazel test implies fetch+build, but this gives us timing.
  - bazel fetch //tensorboard/...
  - bazel build //tensorboard/...
  - |
    # When TensorFlow is not installed, run a restricted subset of tests.
    if [ -z "${TF_VERSION_ID}" ]; then
      test_tag_filters=support_notf
    else
      test_tag_filters=
    fi
  - bazel test //tensorboard/... --test_tag_filters="${test_tag_filters}"
  # Run manual S3 test
  - bazel test //tensorboard/compat/tensorflow_stub:gfile_s3_test
  - bazel run //tensorboard/pip_package:build_pip_package -- --tf-version "${TF_VERSION_ID}" --smoke

after_script:
  # Bazel launches daemons unless --batch is used.
  - bazel shutdown

before_cache:
  - |
    # Scrub tiny build artifacts not worth caching.
    find "${HOME}/.bazel-output-base" \
      -name \*.runfiles -print0 \
      -or -name \*.tar.gz -print0 \
      -or -name \*-execroot.json -print0 \
      -or -name \*-tsc.json -print0 \
      -or -name \*-params.pbtxt -print0 \
      -or -name \*-args.txt -print0 \
      -or -name \*.runfiles_manifest -print0 \
      -or -name \*.server_params.pbtxt -print0 \
      | xargs -0 rm -rf

notifications:
  email: false