.travis.nightly

#!/bin/sh

set -e # Exit immediately if a command exits with a non-zero status.
set -u # Treat unset variables as an error.

DOCKER_IMAGE_REPO=jlesage/handbrake
DOCKER_IMAGE_GIT_REPO=jlesage/docker-handbrake
HANDBRAKE_GIT_REPO=HandBrake/HandBrake

# Clone required git repositories.
git clone --branch master --single-branch https://github.com/${HANDBRAKE_GIT_REPO}.git handbrake
git clone https://github.com/${DOCKER_IMAGE_GIT_REPO}.git docker_build

HANDBRAKE_LAST_COMMIT="$(git -C handbrake log -n 1 --pretty=format:"%h")"
HANDBRAKE_LAST_COMMIT_DATE="$(git -C handbrake log -1 --format=%cd --date=format:%Y%m%d)"
DOCKER_IMAGE_LAST_VERSION="$(git -C docker_build tag | grep -E '^v[0-9.]+$' | sort -t. -k 1,1n -k 2,2n -k 3,3n | tail -n1)"
DOCKER_IMAGE_NIGHTLY_VERSION="${DOCKER_IMAGE_LAST_VERSION}-dev-${HANDBRAKE_LAST_COMMIT_DATE}-${HANDBRAKE_LAST_COMMIT}"

# Skip the build if it is already done.
if curl -s -L https://index.docker.io/v1/repositories/${DOCKER_IMAGE_REPO}/tags | grep -E "\"${DOCKER_IMAGE_NIGHTLY_VERSION}\""
then
    echo "Skipping cron build: Docker image ${DOCKER_IMAGE_LAST_VERSION} based on HandBrake git hash $HANDBRAKE_LAST_COMMIT already exists."
    exit 0
fi

# Prepare Docker image build.
git -C docker_build checkout "$DOCKER_IMAGE_LAST_VERSION"
# Set the version in Dockerfile
sed -i "s/org.label-schema.version=\"unknown\"/org.label-schema.version=\"$DOCKER_IMAGE_NIGHTLY_VERSION\"/" docker_build/Dockerfile

echo "----------------------------------------------"
echo "HANDBRAKE_LAST_COMMIT=$HANDBRAKE_LAST_COMMIT"
echo "HANDBRAKE_LAST_COMMIT_DATE=$HANDBRAKE_LAST_COMMIT_DATE"
echo "DOCKER_IMAGE_LAST_VERSION=$DOCKER_IMAGE_LAST_VERSION"
echo "DOCKER_IMAGE_NIGHTLY_VERSION=$DOCKER_IMAGE_NIGHTLY_VERSION"
echo "----------------------------------------------"

# Build Docker image.
echo "Starting cron build of Docker image..."
docker build \
    --no-cache \
    --pull \
    --build-arg HANDBRAKE_URL=https://github.com/${HANDBRAKE_GIT_REPO}.git \
    --build-arg HANDBRAKE_VERSION=$HANDBRAKE_LAST_COMMIT \
    -f docker_build/Dockerfile.nightly \
    -t $DOCKER_IMAGE_REPO docker_build

echo "Creating Docker image tags..."
docker tag $DOCKER_IMAGE_REPO $DOCKER_IMAGE_REPO:dev-latest
docker tag $DOCKER_IMAGE_REPO $DOCKER_IMAGE_REPO:$DOCKER_IMAGE_NIGHTLY_VERSION

# Push image to Docker hub.
echo "Logging to Docker hub..."
docker login -u "$DOCKER_HUB_USER" -p "$DOCKER_HUB_PASS"
echo "Pushing Docker image tags..."
docker push $DOCKER_IMAGE_REPO:dev-latest
docker push $DOCKER_IMAGE_REPO:$DOCKER_IMAGE_NIGHTLY_VERSION
docker logout
echo "Done!"