#!/bin/bash
#
# Rebuild and publish all docker images.
# Use the --dry-run argument to prevent the actual build process from running.
#
# Note: This script should not be triggered manually. Only run it in CI.
#
# Required env variables:
#
# - `DOCKER_USER`
# - `DOCKER_API_KEY`

SUPPORTED_BRANCH_NAMES=("master")
SUPPORTED_TAG_PATTERNS=("^v2.1.\([6789]\|1[0-9]\)$")
IMAGE_NAME=threema/threema-web

if [ $1 == "--dry-run" ]; then
    echo -e "Dry run\n"
    DOCKER='echo > docker'
else
    DOCKER="docker"
fi

echo "Logging in:"
$DOCKER login -u $DOCKER_USER -p $DOCKER_API_KEY

echo -e "\nBuilding branches:"
for branch in $SUPPORTED_BRANCH_NAMES; do
    echo -e "\n- $branch"
    $DOCKER build . --no-cache -t $IMAGE_NAME:$branch
done

echo -e "\nBuilding tags:"
for pattern in $SUPPORTED_TAG_PATTERNS; do
    for tag in $(git tag | grep $pattern); do
        echo -e "\n- $tag"
        maintag=$tag
        minortag=$(echo $tag | sed 's/^\(v[0-9]*\.[0-9]*\)\..*$/\1/')
        majortag=$(echo $tag | sed 's/^\(v[0-9]*\)\..*$/\1/')
        $DOCKER build . --no-cache -t $IMAGE_NAME:$tag -t $IMAGE_NAME:$minortag -t threema/threema
    done
done

echo -e "\nPushing image with all tags"
$DOCKER push $IMAGE_NAME