language: c
sudo: false
env:
  # Target commit for https://github.com/pfalcon/esp-open-sdk/
  OPENSDK_COMMIT=cd1d336
  CROSS_ROOT="${HOME}/toolchain-${OPENSDK_COMMIT}"
  CROSS_BINDIR="${CROSS_ROOT}/bin"
  ESPTOOL2_COMMIT=ec0e2c7
  ESPTOOL2_DIR="${HOME}/esptool2-${ESPTOOL2_COMMIT}"
  PATH=${PATH}:${CROSS_BINDIR}:${ESPTOOL2_DIR}
cache:
  directories:
    - ${CROSS_ROOT}
    - ${ESPTOOL2_DIR}
addons:
  apt:
    packages:
    - make
    - unrar
    - autoconf
    - automake
    - libtool
    - gcc
    - g++
    - gperf
    - flex
    - bison
    - texinfo
    - gawk
    - libncurses5-dev
    - libexpat1-dev
    - python
    - python-serial
    - sed
    - git

before_install:
  # Install a toolchain using esp-open-sdk (parts we need for this are the GNU toolchain and libhal)
  #
  # Adds hack of "{$HAS_TC} || -Buildstep-" to avoid rebuilding toolchain if it's already
  # installed from the cache. If this gets any more complex it should be spun out to a standalone shell script.
  - export HAS_TC="test -d ${CROSS_BINDIR}"
  - unset CC # Travis sets this due to "language: c", but it confuses autotools configure when cross-building
  - ${HAS_TC} || git clone --recursive https://github.com/pfalcon/esp-open-sdk.git
  - ${HAS_TC} || cd esp-open-sdk
  - ${HAS_TC} || git reset --hard ${OPENSDK_COMMIT}
  - ${HAS_TC} || git submodule update
  - ${HAS_TC} || sed -i "s/2.69/2.68/" lx106-hal/configure.ac # this is a nasty hack as Ubuntu Precise only has autoconf 2.68 not 2.69...
  - ${HAS_TC} || sed -r -i 's%TOOLCHAIN ?=.*%TOOLCHAIN=${CROSS_ROOT}%' Makefile
  - ${HAS_TC} || make STANDALONE=n
  - export HAS_ET2="test -f ${ESPTOOL2_DIR}/esptool2"
  - ${HAS_ET2} || git clone https://github.com/raburton/esptool2 ${ESPTOOL2_DIR}
  - ${HAS_ET2} || cd ${ESPTOOL2_DIR}
  - ${HAS_ET2} || git reset --hard ${ESPTOOL2_COMMIT}
  - ${HAS_ET2} || make

script:
  - cd ${TRAVIS_BUILD_DIR}
  # Remove ssid_config requirement for examples
  - sed -i "s%#error%//#error%" include/ssid_config.h
  - make WARNINGS_AS_ERRORS=1 -C examples/ build-examples CROSS="ccache xtensa-lx106-elf-" V=1