homebrew-cask/ci/travis/before_script.sh

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#!/usr/bin/env bash
#
# before_script.sh
#
# This file is meant to be sourced during the `before_script` phase of the
# Travis build. Do not attempt to source or run it locally.
#
# shellcheck disable=SC1090
. "${TRAVIS_BUILD_DIR}/ci/travis/helpers.sh"
header 'Running before_script.sh...'
# Required workarounds
if ! command -v gpg2 &>/dev/null; then brew install gpg2; fi # After El Capitan is no longer needed, this can likely be removed
gpg2 --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 # Required by RVM: https://rvm.io/rvm/security
run rvm get head # Required due to Travis bug: https://github.com/travis-ci/travis-ci/issues/6307#issuecomment-233315824
# see https://github.com/travis-ci/travis-ci/issues/2666
run export BRANCH_COMMIT="${TRAVIS_COMMIT_RANGE##*.}"
run export TARGET_COMMIT="${TRAVIS_COMMIT_RANGE%%.*}"
# shellcheck disable=SC2016
if ! run 'MERGE_BASE="$(git merge-base "${BRANCH_COMMIT}" "${TARGET_COMMIT}")"'; then
run git fetch --unshallow
run 'MERGE_BASE="$(git merge-base "${BRANCH_COMMIT}" "${TARGET_COMMIT}")"'
fi
run export MERGE_BASE="${MERGE_BASE}"
run export TRAVIS_COMMIT_RANGE="${MERGE_BASE}...${BRANCH_COMMIT}"
# capture system ruby and gem locations
run export SYSTEM_RUBY_HOME="/System/Library/Frameworks/Ruby.framework/Versions/Current"
run export SYSTEM_RUBY_BINDIR="${SYSTEM_RUBY_HOME}/usr/bin"
run export SYSTEM_GEM_HOME="$(gem_homes="${SYSTEM_RUBY_HOME}/usr/lib/ruby/gems/"*; echo ${gem_homes[${#gem_homes[@]}-1]})"
run export SYSTEM_GEM_BINDIR="${SYSTEM_GEM_HOME}/bin"
# capture user gem locations
run export GEM_HOME="${HOME}/.gem/ruby/${SYSTEM_GEM_HOME##*/}"
run export GEM_BINDIR="${GEM_HOME}/bin"
# ensure that the gems we install are used before system gems
run export GEM_PATH="${GEM_HOME}:${SYSTEM_GEM_HOME}"
run export PATH="${GEM_BINDIR}:${SYSTEM_GEM_BINDIR}:${SYSTEM_RUBY_BINDIR}:${PATH}"
# ensure that brew uses the ruby we want it to
run export HOMEBREW_RUBY_PATH="${SYSTEM_RUBY_BINDIR}/ruby"
# make sure brew is on master branch
run export HOMEBREW_DEVELOPER=1
# update homebrew
run brew update
# mirror the repo as a tap, then run the build from there
run export CASK_TAP_DIR="$(brew --repository)/Library/Taps/${TRAVIS_REPO_SLUG}"
run mkdir -p "${CASK_TAP_DIR}"
run rsync -az --delete "${TRAVIS_BUILD_DIR}/" "${CASK_TAP_DIR}/"
run export TRAVIS_BUILD_DIR="${CASK_TAP_DIR}"
run cd "${CASK_TAP_DIR}" || exit 1