language: c

cache:
  ccache: true

compiler:
  - gcc

os:
  - linux

## We don't use the build matrix cross-product, because it makes too many jobs
## Instead, we list each job under matrix: include:
env:
  global:
    ## The Travis CI environment allows us two cores, so let's use both.  Also,
    ## let's use the "-k" flag so that we get all of the compilation failures,
    ## not just the first one.
    - MAKEFLAGS="-k -j 2"
    ## We turn on hardening by default
    ## Also known as --enable-fragile-hardening in 0.3.0.3-alpha and later
    - HARDENING_OPTIONS="--enable-expensive-hardening"
    ## We turn off asciidoc by default, because it's slow
    - ASCIIDOC_OPTIONS="--disable-asciidoc"
  matrix:
    ## This matrix entry is required, but it doesn't actually create any jobs
    -

matrix:
  ## include creates builds with gcc, linux, unless we override those defaults
  include:
    ## We run basic tests on macOS
    - compiler: clang
      os: osx
      ## Turn off some newer features, turn on clang's -Wtypedef-redefinition
      env: C_DIALECT_OPTIONS="-std=gnu99"
    ## We run chutney on Linux, because it's faster than chutney on macOS
    ## Use -std=gnu99 to turn off some newer features, and maybe turn on some
    ## extra gcc warnings?
    - env: CHUTNEY="yes" CHUTNEY_ALLOW_FAILURES="2" SKIP_MAKE_CHECK="yes" C_DIALECT_OPTIONS="-std=gnu99"
      ## (Linux only) Use an older Linux image (Ubuntu Trusty)
      ## The Xenial and Bionic images cause permissions issues for chutney,
      ## this is a workaround, until we fix #32240.
      dist: trusty
    ## We check asciidoc with distcheck, to make sure we remove doc products
    ## We use Linux clang, because there are no other Linux clang jobs
    - env: DISTCHECK="yes" ASCIIDOC_OPTIONS="" SKIP_MAKE_CHECK="yes"
      compiler: clang
    ## We include a single coverage build with the best options for coverage
    - env: COVERAGE_OPTIONS="--enable-coverage" HARDENING_OPTIONS=""
    ## We run chutney on macOS, because macOS Travis has IPv6
    - env: CHUTNEY="yes" CHUTNEY_ALLOW_FAILURES="2" SKIP_MAKE_CHECK="yes"
      os: osx

  ## Allow the build to report success (with non-required sub-builds
  ## continuing to run) if all required sub-builds have succeeded.
  fast_finish: true

  ## Careful! We use global envs, which makes it hard to allow failures by env:
  ## https://docs.travis-ci.com/user/customizing-the-build#matching-jobs-with-allow_failures
  allow_failures:
    ## macOS chutney is very slow, so we let the build finish before it's done
    ## We'd like to fast finish, but still eventually show failures.
    ## But Travis doesn't have that option.
    - env: CHUTNEY="yes" CHUTNEY_ALLOW_FAILURES="2" SKIP_MAKE_CHECK="yes"
      os: osx

## (Linux only) Use a recent Linux image (Ubuntu Bionic)
dist: bionic

## Download our dependencies
addons:
  ## (Linux only)
  apt:
    packages:
      ## Required dependencies
      - libevent-dev
      ## Ubuntu comes with OpenSSL by default
      #- libssl-dev
      - zlib1g-dev
      ## Optional dependencies
      - libcap-dev
      - libscrypt-dev
      - libseccomp-dev
      ## Conditional build dependencies
      ## Always installed, so we don't need sudo
      - asciidoc
      - docbook-xsl
      - docbook-xml
      - xmlto
  ## (OSX only)
  homebrew:
    packages:
      ## Required dependencies
      - libevent
      ## The OSX version of OpenSSL is way too old
      - openssl
      ## OSX comes with zlib by default
      ## to use a newer zlib, pass the keg path to configure (like OpenSSL)
      #- zlib
      ## Optional dependencies
      - libscrypt
      ## Required build dependencies
      ## Tor needs pkg-config to find some dependencies at build time
      - pkg-config
      ## Optional build dependencies
      - ccache
      ## Conditional build dependencies
      ## Always installed, because manual brew installs are hard to get right
      - asciidoc
      - xmlto

## (OSX only) Use a recent macOS image
## See https://docs.travis-ci.com/user/reference/osx#os-x-version
## Default is Xcode 9.4 on macOS 10.13 as of October 2019
## Recent is Xcode 11.2 on macOS 10.14 as of October 2019
osx_image: xcode11.2

install:
  ## If we're on OSX, configure ccache (ccache is automatically installed and configured on Linux)
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PATH="/usr/local/opt/ccache/libexec:$PATH"; fi
  ## If we're on OSX, OpenSSL is keg-only, so tor 0.2.9 and later need to be configured --with-openssl-dir= to build
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then OPENSSL_OPTIONS=--with-openssl-dir=`brew --prefix openssl`; fi
  ## Install conditional features
  ## Install coveralls
  - if [[ "$COVERAGE_OPTIONS" != "" ]]; then pip install --user cpp-coveralls; fi
  ## If we're on OSX, and using asciidoc, configure asciidoc
  - if [[ "$ASCIIDOC_OPTIONS" == "" ]] && [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export XML_CATALOG_FILES="/usr/local/etc/xml/catalog"; fi
  ## If we're running chutney, install it.
  - if [[ "$CHUTNEY" != "" ]]; then git clone --depth 1 https://github.com/torproject/chutney.git ; export CHUTNEY_PATH="$(pwd)/chutney"; fi
  ## Finally, list installed package versions
  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then dpkg-query --show; fi
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew list --versions; fi
  ## Get python version
  - python --version
  ## If we're running chutney, show the chutney commit
  - if [[ "$CHUTNEY" != "" ]]; then pushd "$CHUTNEY_PATH"; git log -1 ; popd ; fi

script:
  - ./autogen.sh
  - CONFIGURE_FLAGS="$ASCIIDOC_OPTIONS $COVERAGE_OPTIONS $HARDENING_OPTIONS $OPENSSL_OPTIONS --enable-fatal-warnings --disable-silent-rules"
  - echo "Configure flags are $CONFIGURE_FLAGS CC=\"$CC $C_DIALECT_OPTIONS\""
  - ./configure $CONFIGURE_FLAGS CC="$CC $C_DIALECT_OPTIONS"
  ## We run `make check` because that's what https://jenkins.torproject.org does.
  - if [[ "$SKIP_MAKE_CHECK" == "" ]]; then make check; fi
  - if [[ "$DISTCHECK" != "" ]]; then make distcheck DISTCHECK_CONFIGURE_FLAGS="$CONFIGURE_FLAGS"; fi
  - if [[ "$CHUTNEY" != "" ]]; then make test-network-all; fi
  ## If this build was one that produced coverage, upload it.
  - if [[ "$COVERAGE_OPTIONS" != "" ]]; then coveralls -b . --exclude src/test --exclude src/trunnel --gcov-options '\-p' || echo "Coverage failed"; fi

after_failure:
  ## configure will leave a log file with more details of config failures.
  ## But the log is too long for travis' rendered view, so tail it.
  - tail -1000 config.log || echo "tail failed"
  ## `make check` will leave a log file with more details of test failures.
  - if [[ "$SKIP_MAKE_CHECK" == "" ]]; then cat test-suite.log || echo "cat failed"; fi
  ## `make distcheck` puts it somewhere different.
  - if [[ "$DISTCHECK" != "" ]]; then make show-distdir-testlog || echo "make failed"; fi
  - if [[ "$CHUTNEY" != "" ]]; then ls test_network_log || echo "ls failed"; cat test_network_log/* || echo "cat failed"; fi

before_cache:
  ## Delete all gcov files.
  - if [[ "$COVERAGE_OPTIONS" != "" ]]; then make reset-gcov; fi

notifications:
  irc:
    channels:
      - "irc.oftc.net#tor-ci"
    template:
      - "%{repository} %{branch} %{commit} - %{author}: %{commit_subject}"
      - "Build #%{build_number} %{result}. Details: %{build_url}"
    on_success: change
    on_failure: change
  email:
    on_success: never
    on_failure: change
