status-mobile/nix/scripts/build.sh

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#!/usr/bin/env bash
set -e
GIT_ROOT=$(cd "${BASH_SOURCE%/*}" && git rev-parse --show-toplevel)
resultPath="${GIT_ROOT}/result/"
source "${GIT_ROOT}/scripts/colors.sh"
source "${GIT_ROOT}/nix/scripts/source.sh"
# cleanup for artifacts created during builds
function cleanup() {
# clear trapped signals
trap - EXIT ERR INT QUIT
# do the actual cleanup, ignore failure
if ${GIT_ROOT}/nix/scripts/clean.sh "${nixResultPath}"; then
echo -e "${GRN}Successful cleanup!${RST}"
elif [[ -n "${JENKINS_URL}" ]]; then
# in CI removing some paths can fail due to parallel builds
echo -e "${YLW}Ignoring cleanup failure in CI.${RST}"
else
echo -e "${RED}Failed cleanup!${RST}"
exit 1
fi
}
# If you want to clean after every build set _NIX_CLEAN=true
if [[ -n "${_NIX_CLEAN}" ]]; then
trap cleanup EXIT ERR INT QUIT
fi
# build output will end up under /nix, we have to extract it
function extractResults() {
local nixResultPath="$1"
mkdir -p "${resultPath}"
cp -vfr ${nixResultPath}/* "${resultPath}" | sed 's#'${PWD}'#.#'
chmod -R u+w "${resultPath}"
}
TARGET="${1}"
shift
if [[ -z "${TARGET}" ]]; then
echo -e "${RED}First argument is mandatory and has to specify the Nix attribute!${RST}"
exit 1
fi
# Some defaults flags, --pure could be optional in the future.
# NOTE: The --keep-failed flag can be used for debugging issues.
nixOpts=(
"--pure"
"--fallback"
"--no-out-link"
"--show-trace"
"--attr" "${TARGET}"
)
# Save derivation from being garbage collected
${GIT_ROOT}/nix/scripts/gcroots.sh "${TARGET}" "${@}"
# Run the actual build
echo "Running: nix-build "${nixOpts[@]}" "${@}" default.nix"
nixResultPath=$(nix-build "${nixOpts[@]}" "${@}" default.nix)
echo -e "\n${YLW}Extracting result${RST}: ${BLD}${nixResultPath}${RST}"
extractResults "${nixResultPath}"
echo -e "\n${GRN}SUCCESS${RST}"