#!/usr/bin/env bash

set -e

# This script builds various binary artifacts from a checkout of the docker

# source code.

#

# Requirements:

# - The current directory should be a checkout of the docker source code

# (https://github.com/docker/docker). Whatever version is checked out

# will be built.

# - The VERSION file, at the root of the repository, should exist, and

# will be used as Docker binary version and package version.

# - The hash of the git commit will also be included in the Docker binary,

# with the suffix -unsupported if the repository isn't clean.

# - The script is intended to be run inside the docker container specified

# in the Dockerfile at the root of the source. In other words:

# DO NOT CALL THIS SCRIPT DIRECTLY.

# - The right way to call this script is to invoke "make" from

# your checkout of the Docker repository.

# the Makefile will do a "docker build -t docker ." and then

# "docker run hack/make.sh" in the resulting image.

#

set -o pipefail

export DOCKER_PKG='github.com/docker/docker'

export SCRIPTDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

export MAKEDIR="$SCRIPTDIR/make"

export PKG_CONFIG=${PKG_CONFIG:-pkg-config}

echo

# List of bundles to create when no argument is passed

DEFAULT_BUNDLES=(

binary-daemon

dynbinary

test-integration

test-docker-py

)

VERSION=${VERSION:-dev}

case "$VERSION" in

refs/tags/v*) VERSION=${VERSION#refs/tags/v} ;;

refs/tags/*) VERSION=${VERSION#refs/tags/} ;;

refs/heads/*) VERSION=$(echo "${VERSION#refs/heads/}" | sed -r 's#/+#-#g') ;;

refs/pull/*) VERSION=pr-$(echo "$VERSION" | grep -o '[0-9]\+') ;;

esac

! BUILDTIME=$(date -u -d "@${SOURCE_DATE_EPOCH:-$(date +%s)}" --rfc-3339 ns 2> /dev/null | sed -e 's/ /T/')

if [ "$DOCKER_GITCOMMIT" ]; then

GITCOMMIT="$DOCKER_GITCOMMIT"

elif command -v git &> /dev/null && [ -e .git ] && git rev-parse &> /dev/null; then

GITCOMMIT=$(git rev-parse HEAD)

if [ -n "$(git status --porcelain --untracked-files=no)" ]; then

GITCOMMIT="$GITCOMMIT-unsupported"

echo "#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"

echo "# GITCOMMIT = $GITCOMMIT"

echo "# The version you are building is listed as unsupported because"

echo "# there are some files in the git repository that are in an uncommitted state."

echo "# Commit these changes, or add to .gitignore to remove the -unsupported from the version."

echo "# Here is the current list:"

git status --porcelain --untracked-files=no

echo "#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"

fi

else

echo >&2 'error: .git directory missing and DOCKER_GITCOMMIT not specified'

echo >&2 ' Please either build with the .git directory accessible, or specify the'

echo >&2 ' exact commit hash you are building using DOCKER_GITCOMMIT for future'

echo >&2 ' accountability in diagnosing build issues. Thanks!'

exit 1

fi

if [ "$AUTO_GOPATH" ]; then

rm -rf .gopath

mkdir -p .gopath/src/"$(dirname "${DOCKER_PKG}")"

ln -sf ../../../.. .gopath/src/"${DOCKER_PKG}"

export GOPATH="${PWD}/.gopath"

fi

if [ ! "$GOPATH" ]; then

echo >&2 'error: missing GOPATH; please see https://pkg.go.dev/cmd/go#hdr-GOPATH_environment_variable'

echo >&2 ' alternatively, set AUTO_GOPATH=1'

exit 1

fi

if [ -z "${EXCLUDE_AUTO_BUILDTAG_JOURNALD:-}" ] && ${PKG_CONFIG} 'libsystemd' 2> /dev/null; then

DOCKER_BUILDTAGS+=" journald"

fi

# Use these flags when compiling the tests and final binary

if [ -z "$DOCKER_DEBUG" ]; then

LDFLAGS='-w'

fi

BUILDFLAGS=(${BUILDFLAGS} -tags "netgo osusergo static_build $DOCKER_BUILDTAGS")

LDFLAGS_STATIC="-extldflags -static"

if [ "$(uname -s)" = 'FreeBSD' ]; then

# Tell cgo the compiler is Clang, not GCC

# https://code.google.com/p/go/source/browse/src/cmd/cgo/gcc.go?spec=svne77e74371f2340ee08622ce602e9f7b15f29d8d3&r=e6794866ebeba2bf8818b9261b54e2eef1c9e588#752

export CC=clang

# "-extld clang" is a workaround for

# https://code.google.com/p/go/issues/detail?id=6845

LDFLAGS="$LDFLAGS -extld clang"

fi

bundle() {

local bundle="$1"

shift

echo "---> Making bundle: $(basename "$bundle") (in $DEST)"

source "$SCRIPTDIR/make/$bundle" "$@"

}

main() {

bundle_dir="bundles"

if [ -n "${PREFIX}" ]; then

bundle_dir="${PREFIX}/${bundle_dir}"

fi

if [ -z "${KEEPBUNDLE-}" ]; then

echo "Removing ${bundle_dir}/"

rm -rf "${bundle_dir}"/*

echo

fi

mkdir -p "${bundle_dir}"

if [ $# -lt 1 ]; then

bundles=(${DEFAULT_BUNDLES[@]})

else

bundles=($@)

fi

for bundle in ${bundles[@]}; do

export DEST="${bundle_dir}/$(basename "$bundle")"

# Cygdrive paths don't play well with go build -o.

if [[ "$(uname -s)" == CYGWIN* ]]; then

export DEST="$(cygpath -mw "$DEST")"

fi

mkdir -p "$DEST"

ABS_DEST="$(cd "$DEST" && pwd -P)"

bundle "$bundle"

echo

done

}

main "$@"