#!/usr/bin/env bash

#

# Licensed to the .NET Foundation under one or more agreements.

# The .NET Foundation licenses this file to you under the MIT license.

# See the LICENSE file in the project root for more information.

#

set -e

SOURCE="${BASH_SOURCE[0]}"

while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink

DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"

SOURCE="$(readlink "$SOURCE")"

[[ "$SOURCE" != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located

done

DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"

cd "$DIR/.."

while [[ $# > 0 ]]; do

key=$1

case $key in

-t|--tag)

DOCKER_TAG=$2

shift

;;

-d|--dockerfile)

DOCKERFILE=$2

shift

;;

-h|-?|--help)

echo "Usage: $0 [-d|--dockerfile <Dockerfile>] [-t|--tag <Tag>] <Command>"

echo ""

echo "Options:"

echo " <Dockerfile> The path to the folder that contains a Dockerfile to use to create the build container"

echo " <Tag> The name of docker image tag"

exit 0

;;

*)

break # the first non-switch we get ends parsing

;;

esac

shift

done

# Executes a command and retries if it fails.

# NOTE: This function is the exact copy from init-docker.sh.

# Reason for not invoking init.docker.sh directly is since that script

# also performs cleanup, which we do not want in this case.

execute() {

local count=0

local retries=5

local waitFactor=6

until "$@"; do

local exit=$?

count=$(( $count + 1 ))

if [ $count -lt $retries ]; then

local wait=$(( waitFactor ** (( count - 1 )) ))

echo "Retry $count/$retries exited $exit, retrying in $wait seconds..."

sleep $wait

else

say_err "Retry $count/$retries exited $exit, no more retries left."

return $exit

fi

done

return 0

}

# Build the docker container (will be fast if it is already built)

echo "Building Docker Container using Dockerfile: $DOCKERFILE"

# Get the name of Docker image.

image=$(grep -i "^FROM " "$DOCKERFILE/Dockerfile" | awk '{ print $2 }')

# Explicitly pull the base image with retry logic.

# This eliminates intermittent failures during docker build caused by failing to retrieve the base image.

if [ ! -z "$image" ]; then

echo "Pulling Docker image $image"

execute docker pull $image

fi

docker build --build-arg USER_ID=$(id -u) -t $DOCKER_TAG $DOCKERFILE