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#!/bin/bash

set -ev

####################
# OS-specific setup
####################

# Requirements of OS-specific install:
#  - install any software which is not installed by Travis configuration
#  - set up everything necessary so that pyenv can build python
source ci/travis/travis_install.${TRAVIS_OS_NAME}.sh

#############
# pyenv setup
#############

export PYENV_ROOT="${HOME}/.pyenv"

if [ ! -d "${PYENV_ROOT}/.git" ]; then
  git clone https://github.com/yyuu/pyenv.git ${PYENV_ROOT}
fi
pushd ${PYENV_ROOT}
git fetch --tags
git checkout v20160202
popd

export PATH="${PYENV_ROOT}/bin:${PATH}"

eval "$(pyenv init -)"

if [ "${YCM_PYTHON_VERSION}" == "2.6" ]; then
  PYENV_VERSION="2.6.6"
elif [ "${YCM_PYTHON_VERSION}" == "2.7" ]; then
  PYENV_VERSION="2.7.6"
else
  PYENV_VERSION="3.3.6"
fi

pyenv install --skip-existing ${PYENV_VERSION}
pyenv rehash
pyenv global ${PYENV_VERSION}

# It is quite easy to get the above series of steps wrong. Verify that the
# version of python actually in the path and used is the version that was
# requested, and fail the build if we broke the travis setup
python_version=$(python -c 'import sys; print( "{0}.{1}".format( sys.version_info[0], sys.version_info[1] ) )')
echo "Checking python version (actual ${python_version} vs expected ${YCM_PYTHON_VERSION})"
test ${python_version} == ${YCM_PYTHON_VERSION}

############
# pip setup
############

pip install -U pip wheel setuptools
pip install -r python/test_requirements.txt

# The build infrastructure prints a lot of spam after this script runs, so make
# sure to disable printing, and failing on non-zero exit code after this script
# finishes
set +ev