build

#!/bin/bash -e

##################################################
#
# ./build DISTRO [DOCKER_TAG]
#
# If no docker tag, `latest` is used
#
# ie:
# ./build debian 9
#
##################################################

CWD=$(pwd)
CYAN='\E[1;36m'
RED='\E[1;31m'
YELLOW='\E[1;33m'
GREEN='\E[1;32m'
BLUE='\E[1;34m'
RESET='\E[0m'

DISTRO=$1
if [ "$DISTRO" == "" ]; then
    echo -en "${RED}ERROR: ${RESET}"
    echo -e "You must specify a Distro to build for: debian, mint"
    echo "ie: ./build debian"
    exit 1
fi

DOCKER_TAG=$2
if [ "$DOCKER_TAG" == "" ]; then
    DOCKER_TAG=latest
fi

# Make sure jq exists
if ! hash jq 2>/dev/null; then
    echo -en "${RED}ERROR: ${RESET}"
    echo -e "jq command is required"
    exit 1
fi

# Make sure docker exists
if ! hash docker 2>/dev/null; then
    echo -en "${RED}ERROR: ${RESET}"
    echo -e "docker command is required"
    exit 1
fi

# Variables
DOCKER_IMAGE=jc21/dpkg-${DISTRO}
PACKAGE=$(cat dpkg.json | jq -r .PACKAGE)
VERSION=$(cat dpkg.json | jq -r .VERSION)
GH_USER=$(cat dpkg.json | jq -r .GH_USER)
GH_VERSION=$(cat dpkg.json | jq -r .GH_VERSION)
SIGN_KEY=$(cat dpkg.json | jq -r .SIGN_KEY)
URL=

export PACKAGE VERSION GH_USER GH_VERSION
eval "URL=$(cat dpkg.json | jq -r .URL)"

if [ -z "$URL" ]; then
    echo -en "${RED}ERROR: ${RESET}"
    echo -e "URL could not be determined from dpkg.json file"
    exit 1
fi

echo -e "${BLUE}❯ ${GREEN}Building ${CYAN}${PACKAGE} v${VERSION} ${GREEN}for ${DISTRO}:${DOCKER_TAG}${RESET}"

# Clean
rm -rf "${PACKAGE}-${VERSION}"

# Download
echo -e "${BLUE}❯ ${YELLOW}Downloading${RESET}"
if [ -e "${PACKAGE}_${VERSION}.orig.tar.gz" ]; then
    echo "${PACKAGE}_${VERSION}.orig.tar.gz exists, skipping..."
else
    wget -nv "${URL}" -O "${PACKAGE}_${VERSION}.orig.tar.gz"
fi

# Extract
echo -e "${BLUE}❯ ${YELLOW}Extracting${RESET}"
tar xzf "${PACKAGE}_${VERSION}.orig.tar.gz"

# Copy over debian package info
echo -e "${BLUE}❯ ${YELLOW}Setting up ./debian folder${RESET}"
cp -pr debian "${PACKAGE}-${VERSION}"/

# Pull latest builder image
echo -e "${BLUE}❯ ${YELLOW}Pulling docker image: ${DOCKER_IMAGE}:${DOCKER_TAG}${RESET}"
docker pull "${DOCKER_IMAGE}:${DOCKER_TAG}"

# Use the build to change the ownership of folders
echo -e "${BLUE}❯ ${YELLOW}Temporarily changing ownership${RESET}"
docker run --rm \
    -v "${CWD}:/home/builder/package" \
    -v "${CWD}/sign/.gnupg:/home/builder/.gnupg" \
    "${DOCKER_IMAGE}:${DOCKER_TAG}" \
    sudo chown -R builder:builder /home/builder/package /home/builder/.gnupg

# Build
echo -e "${BLUE}❯ ${YELLOW}Building${RESET}"
set +e

# Docker Run Part 1
docker run --rm \
    --name "dpkgbuild-${BUILD_TAG:-dpkg-${DISTRO}-${PACKAGE}}" \
    -v "${CWD}:/home/builder/package" \
    -v "${CWD}/sign/.gnupg:/home/builder/.gnupg" \
    -e "GOPROXY=${GOPROXY}" \
    -w "/home/builder/package/${PACKAGE}-${VERSION}" \
    "${DOCKER_IMAGE}:${DOCKER_TAG}" \
    bash -c "sudo mk-build-deps --install --tool='apt-get --no-install-recommends -y' debian/control && dpkg-buildpackage --sign-key="${SIGN_KEY}" --force-sign"

BUILD_SUCCESS=$?

# Change ownership back
echo -e "${BLUE}❯ ${YELLOW}Reverting ownership${RESET}"
docker run --rm \
  -v "${CWD}:/home/builder/package" \
  -v "${CWD}/sign/.gnupg:/home/builder/.gnupg" \
  "${DOCKER_IMAGE}:${DOCKER_TAG}" \
  sudo chown -R "$(id -u):$(id -g)" /home/builder/package /home/builder/.gnupg

# do we need to exit the loop?
if [ $BUILD_SUCCESS -ne 0 ]; then
    echo -e "${BLUE}❯ ${RED}Exiting due to error${RESET}"
    exit ${BUILD_SUCCESS}
fi