.travis.yml

language: c

cache:
  directories:
    - nim
    - upx
    - pcre
    - openssl
    - libressl

env:
  global:
    - REPONAME="$(basename ${TRAVIS_BUILD_DIR})" # /travis/build/kaushalmodi/hello_musl -> hello_musl
    #
    - PROG1="hello_musl"
    - NIMFILE1="src/${PROG1}.nim"
    - BINFILE1="src/${PROG1}"
    #
    - PROG2="hello_musl_pcre"
    - NIMFILE2="src/${PROG2}.nim"
    - BINFILE2="src/${PROG2}"
    #
    - PROG3="hello_musl_ssl"
    - NIMFILE3="src/${PROG3}.nim"
    - BINFILE3="src/${PROG3}"
    - BINFILE3libre="src/${PROG3}_libre"
    - BINFILE3open="src/${PROG3}_open"
    #
    - DIST_DIR="${TRAVIS_BUILD_DIR}/dist"
    - ASSETFILE="${REPONAME}-${TRAVIS_TAG}.Linux_64bit_musl.tar.xz"
    - NIMREPO="https://github.com/nim-lang/Nim"
    - NIMVER="$(git ls-remote ${NIMREPO} devel | cut -f 1)"
    - NIMDIR="${TRAVIS_BUILD_DIR}/nim/${NIMVER}"
    - UPXVER="3.95"             # Change this value when upgrading upx
    - PCREVER="8.42"            # Change this value when upgrading pcre
    - LIBRESSLVER="2.8.1"       # Change this value when upgrading libressl
    - OPENSSLVER="1.1.1"        # Change this value when upgrading openssl

addons:
  apt:
    packages:
      # For building MUSL static builds on Linux.
      - musl-tools

install:
  # http://redsymbol.net/articles/unofficial-bash-strict-mode/
  - set -e
  - echo "NIMDIR = ${NIMDIR}"
  - |
    if [[ ! -f "${NIMDIR}/bin/nim" ]]
    then
      rm -rf nim
      mkdir -p nim
      git clone --single-branch --branch devel --depth=1 "${NIMREPO}" "${NIMDIR}"
      cd "${NIMDIR}" || exit
      # Don't build 'koch tools'; remove that line from build_all.sh.
      sed -i '/koch tools/d' build_all.sh
      sh build_all.sh # https://github.com/nim-lang/Nim/issues/17907#issuecomment-831654235
    fi
  # - |
  #   if [[ ! -f "${NIMDIR}/bin/nimble" ]]
  #   then
  #     cd "${NIMDIR}" || exit
  #     ./koch nimble --skipUserCfg --skipParentCfg
  #   fi
  - export PATH="${NIMDIR}/bin:${PATH}"
  - nim -v

  - |
    if [[ ! -f "${TRAVIS_BUILD_DIR}/upx/${UPXVER}/upx" ]]
    then
      echo "Installing upx .."
      cd "${TRAVIS_BUILD_DIR}"
      curl -OL "https://github.com/upx/upx/releases/download/v${UPXVER}/upx-${UPXVER}-amd64_linux.tar.xz"
      tar xvf "upx-${UPXVER}-amd64_linux.tar.xz"
      mkdir -p "${TRAVIS_BUILD_DIR}/upx"
      mv "upx-${UPXVER}-amd64_linux" "${TRAVIS_BUILD_DIR}/upx/${UPXVER}"
    fi
  - export PATH="${TRAVIS_BUILD_DIR}/upx/${UPXVER}/:${PATH}"
  - upx --version | grep -E '^upx'

script:
  # Ensure that you are in repo/build root now.
  - cd "${TRAVIS_BUILD_DIR}"
  - echo "NIMFILE1 = ${NIMFILE1}"
  - echo "BINFILE1 = ${BINFILE1}"
  - echo "NIMFILE2 = ${NIMFILE2}"
  - echo "BINFILE2 = ${BINFILE2}"
  # Compile the static binary using musl.
  # --accept to say Yes to prompts like "Prompt: No local packages.json found, download it from internet? [y/N]"
  # - nimble install --depsOnly --accept
  # PROG1
  - nim musl "${NIMFILE1}"
  # See that the binary is not dynamic.
  - file "${BINFILE1}"
  # Run the binary.
  - "${BINFILE1}"
  # PROG2
  - nim musl -d:pcre "${NIMFILE2}"
  # See that the binary is not dynamic.
  - file "${BINFILE2}"
  # Run the binary.
  - "${BINFILE2}"
  # PROG3
  - nim musl -d:libressl "${NIMFILE3}" && mv "${BINFILE3}" "${BINFILE3libre}"
  # See that the binary is not dynamic.
  - file "${BINFILE3libre}"
  # Run the binary.
  - "${BINFILE3libre}"
  - nim musl -d:openssl "${NIMFILE3}" && mv "${BINFILE3}" "${BINFILE3open}"
  # See that the binary is not dynamic.
  - file "${BINFILE3open}"
  # Run the binary.
  - "${BINFILE3open}"

before_deploy:
  - cd "${TRAVIS_BUILD_DIR}"
  - mkdir dist
  - cp "${BINFILE1}" "${DIST_DIR}"
  - cp "${BINFILE2}" "${DIST_DIR}"
  - cp "${BINFILE3libre}" "${DIST_DIR}"
  - cp "${BINFILE3open}" "${DIST_DIR}"
  # -C <DIR> tells tar to change the current directory to <DIR>, and
  # then the "." means "add the entire current directory" (including
  # hidden files and sub-directories).
  - tar caf "${ASSETFILE}" -C "${DIST_DIR}" .

deploy:
  provider: releases
  api_key: "${GITHUB_OAUTH_TOKEN}"
  file: "${ASSETFILE}"
  skip_cleanup: true
  on:
    tags: true

notifications:
  email:
    on_success: never # default: change
    on_failure: always # default: always

# References:
# choosenim: https://github.com/mratsim/Arraymancer/blob/master/.travis.yml
# musl: https://github.com/BurntSushi/ripgrep/blob/master/.travis.yml
# nim build caching: https://github.com/status-im/nimbus/blob/master/.travis.yml
# https://docs.travis-ci.com/user/deployment/releases/
# https://github.com/nim-lang/Nim/wiki/TravisCI
# https://docs.travis-ci.com/user/environment-variables/#default-environment-variables